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167,100 | gobwas/ws | http.go | httpParseVersion | func httpParseVersion(bts []byte) (major, minor int, ok bool) {
switch {
case bytes.Equal(bts, httpVersion1_0):
return 1, 0, true
case bytes.Equal(bts, httpVersion1_1):
return 1, 1, true
case len(bts) < 8:
return
case !bytes.Equal(bts[:5], httpVersionPrefix):
return
}
bts = bts[5:]
dot := bytes.IndexByte(bts, '.')
if dot == -1 {
return
}
var err error
major, err = asciiToInt(bts[:dot])
if err != nil {
return
}
minor, err = asciiToInt(bts[dot+1:])
if err != nil {
return
}
return major, minor, true
} | go | func httpParseVersion(bts []byte) (major, minor int, ok bool) {
switch {
case bytes.Equal(bts, httpVersion1_0):
return 1, 0, true
case bytes.Equal(bts, httpVersion1_1):
return 1, 1, true
case len(bts) < 8:
return
case !bytes.Equal(bts[:5], httpVersionPrefix):
return
}
bts = bts[5:]
dot := bytes.IndexByte(bts, '.')
if dot == -1 {
return
}
var err error
major, err = asciiToInt(bts[:dot])
if err != nil {
return
}
minor, err = asciiToInt(bts[dot+1:])
if err != nil {
return
}
return major, minor, true
} | [
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"}",
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"return",
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",",
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"\n",
"}"
] | // httpParseVersion parses major and minor version of HTTP protocol. It returns
// parsed values and true if parse is ok. | [
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"parses",
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] | 7338e265e1ab4ea2403da5ce80d934ef5f976923 | https://github.com/gobwas/ws/blob/7338e265e1ab4ea2403da5ce80d934ef5f976923/http.go#L124-L153 |
167,101 | gobwas/ws | http.go | httpParseHeaderLine | func httpParseHeaderLine(line []byte) (k, v []byte, ok bool) {
colon := bytes.IndexByte(line, ':')
if colon == -1 {
return
}
k = btrim(line[:colon])
// TODO(gobwas): maybe use just lower here?
canonicalizeHeaderKey(k)
v = btrim(line[colon+1:])
return k, v, true
} | go | func httpParseHeaderLine(line []byte) (k, v []byte, ok bool) {
colon := bytes.IndexByte(line, ':')
if colon == -1 {
return
}
k = btrim(line[:colon])
// TODO(gobwas): maybe use just lower here?
canonicalizeHeaderKey(k)
v = btrim(line[colon+1:])
return k, v, true
} | [
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] | // httpParseHeaderLine parses HTTP header as key-value pair. It returns parsed
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] | 7338e265e1ab4ea2403da5ce80d934ef5f976923 | https://github.com/gobwas/ws/blob/7338e265e1ab4ea2403da5ce80d934ef5f976923/http.go#L157-L170 |
167,102 | gobwas/ws | http.go | httpGetHeader | func httpGetHeader(h http.Header, key string) string {
if h == nil {
return ""
}
v := h[key]
if len(v) == 0 {
return ""
}
return v[0]
} | go | func httpGetHeader(h http.Header, key string) string {
if h == nil {
return ""
}
v := h[key]
if len(v) == 0 {
return ""
}
return v[0]
} | [
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] | // httpGetHeader is the same as textproto.MIMEHeader.Get, except the thing,
// that key is already canonical. This helps to increase performance. | [
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] | 7338e265e1ab4ea2403da5ce80d934ef5f976923 | https://github.com/gobwas/ws/blob/7338e265e1ab4ea2403da5ce80d934ef5f976923/http.go#L174-L183 |
167,103 | gobwas/ws | http.go | httpError | func httpError(w http.ResponseWriter, body string, code int) {
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
w.Header().Set("Content-Length", strconv.Itoa(len(body)))
w.WriteHeader(code)
w.Write([]byte(body))
} | go | func httpError(w http.ResponseWriter, body string, code int) {
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
w.Header().Set("Content-Length", strconv.Itoa(len(body)))
w.WriteHeader(code)
w.Write([]byte(body))
} | [
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] | // httpError is like the http.Error with WebSocket context exception. | [
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] | 7338e265e1ab4ea2403da5ce80d934ef5f976923 | https://github.com/gobwas/ws/blob/7338e265e1ab4ea2403da5ce80d934ef5f976923/http.go#L375-L380 |
167,104 | gobwas/ws | check.go | Is | func (s State) Is(v State) bool {
return uint8(s)&uint8(v) != 0
} | go | func (s State) Is(v State) bool {
return uint8(s)&uint8(v) != 0
} | [
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] | // Is checks whether the s has v enabled. | [
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] | 7338e265e1ab4ea2403da5ce80d934ef5f976923 | https://github.com/gobwas/ws/blob/7338e265e1ab4ea2403da5ce80d934ef5f976923/check.go#L22-L24 |
167,105 | gobwas/ws | wsutil/reader.go | NewReader | func NewReader(r io.Reader, s ws.State) *Reader {
return &Reader{
Source: r,
State: s,
}
} | go | func NewReader(r io.Reader, s ws.State) *Reader {
return &Reader{
Source: r,
State: s,
}
} | [
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] | // NewReader creates new frame reader that reads from r keeping given state to
// make some protocol validity checks when it needed. | [
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] | 7338e265e1ab4ea2403da5ce80d934ef5f976923 | https://github.com/gobwas/ws/blob/7338e265e1ab4ea2403da5ce80d934ef5f976923/wsutil/reader.go#L53-L58 |
167,106 | gobwas/ws | wsutil/reader.go | Discard | func (r *Reader) Discard() (err error) {
for {
_, err = io.Copy(ioutil.Discard, &r.raw)
if err != nil {
break
}
if !r.fragmented() {
break
}
if _, err = r.NextFrame(); err != nil {
break
}
}
r.reset()
return err
} | go | func (r *Reader) Discard() (err error) {
for {
_, err = io.Copy(ioutil.Discard, &r.raw)
if err != nil {
break
}
if !r.fragmented() {
break
}
if _, err = r.NextFrame(); err != nil {
break
}
}
r.reset()
return err
} | [
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] | 7338e265e1ab4ea2403da5ce80d934ef5f976923 | https://github.com/gobwas/ws/blob/7338e265e1ab4ea2403da5ce80d934ef5f976923/wsutil/reader.go#L128-L143 |
167,107 | gobwas/ws | wsutil/cipher.go | NewCipherReader | func NewCipherReader(r io.Reader, mask [4]byte) *CipherReader {
return &CipherReader{r, mask, 0}
} | go | func NewCipherReader(r io.Reader, mask [4]byte) *CipherReader {
return &CipherReader{r, mask, 0}
} | [
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] | 7338e265e1ab4ea2403da5ce80d934ef5f976923 | https://github.com/gobwas/ws/blob/7338e265e1ab4ea2403da5ce80d934ef5f976923/wsutil/cipher.go#L20-L22 |
167,108 | gobwas/ws | wsutil/cipher.go | Reset | func (c *CipherReader) Reset(r io.Reader, mask [4]byte) {
c.r = r
c.mask = mask
c.pos = 0
} | go | func (c *CipherReader) Reset(r io.Reader, mask [4]byte) {
c.r = r
c.mask = mask
c.pos = 0
} | [
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] | 7338e265e1ab4ea2403da5ce80d934ef5f976923 | https://github.com/gobwas/ws/blob/7338e265e1ab4ea2403da5ce80d934ef5f976923/wsutil/cipher.go#L25-L29 |
167,109 | gobwas/ws | wsutil/cipher.go | Read | func (c *CipherReader) Read(p []byte) (n int, err error) {
n, err = c.r.Read(p)
ws.Cipher(p[:n], c.mask, c.pos)
c.pos += n
return
} | go | func (c *CipherReader) Read(p []byte) (n int, err error) {
n, err = c.r.Read(p)
ws.Cipher(p[:n], c.mask, c.pos)
c.pos += n
return
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] | 7338e265e1ab4ea2403da5ce80d934ef5f976923 | https://github.com/gobwas/ws/blob/7338e265e1ab4ea2403da5ce80d934ef5f976923/wsutil/cipher.go#L33-L38 |
167,110 | gobwas/ws | wsutil/cipher.go | NewCipherWriter | func NewCipherWriter(w io.Writer, mask [4]byte) *CipherWriter {
return &CipherWriter{w, mask, 0}
} | go | func NewCipherWriter(w io.Writer, mask [4]byte) *CipherWriter {
return &CipherWriter{w, mask, 0}
} | [
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] | 7338e265e1ab4ea2403da5ce80d934ef5f976923 | https://github.com/gobwas/ws/blob/7338e265e1ab4ea2403da5ce80d934ef5f976923/wsutil/cipher.go#L49-L51 |
167,111 | gobwas/ws | wsutil/cipher.go | Reset | func (c *CipherWriter) Reset(w io.Writer, mask [4]byte) {
c.w = w
c.mask = mask
c.pos = 0
} | go | func (c *CipherWriter) Reset(w io.Writer, mask [4]byte) {
c.w = w
c.mask = mask
c.pos = 0
} | [
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] | 7338e265e1ab4ea2403da5ce80d934ef5f976923 | https://github.com/gobwas/ws/blob/7338e265e1ab4ea2403da5ce80d934ef5f976923/wsutil/cipher.go#L54-L58 |
167,112 | gobwas/ws | wsutil/cipher.go | Write | func (c *CipherWriter) Write(p []byte) (n int, err error) {
cp := pbytes.GetLen(len(p))
defer pbytes.Put(cp)
copy(cp, p)
ws.Cipher(cp, c.mask, c.pos)
n, err = c.w.Write(cp)
c.pos += n
return
} | go | func (c *CipherWriter) Write(p []byte) (n int, err error) {
cp := pbytes.GetLen(len(p))
defer pbytes.Put(cp)
copy(cp, p)
ws.Cipher(cp, c.mask, c.pos)
n, err = c.w.Write(cp)
c.pos += n
return
} | [
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"+=",
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"return",
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"}"
] | // Write implements io.Writer interface. It applies mask vien during
// initialization to every sent byte. It does not modify original slice. | [
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"Writer",
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"slice",
"."
] | 7338e265e1ab4ea2403da5ce80d934ef5f976923 | https://github.com/gobwas/ws/blob/7338e265e1ab4ea2403da5ce80d934ef5f976923/wsutil/cipher.go#L62-L72 |
167,113 | rkt/rkt | store/imagestore/remote.go | GetRemote | func GetRemote(tx *sql.Tx, aciURL string) (*Remote, error) {
rows, err := tx.Query("SELECT * FROM remote WHERE aciurl == $1", aciURL)
if err != nil {
return nil, err
}
defer rows.Close()
if ok := rows.Next(); !ok {
return nil, ErrRemoteNotFound
}
remote := &Remote{}
if err := remoteRowScan(rows, remote); err != nil {
return nil, err
}
if err := rows.Err(); err != nil {
return nil, err
}
return remote, nil
} | go | func GetRemote(tx *sql.Tx, aciURL string) (*Remote, error) {
rows, err := tx.Query("SELECT * FROM remote WHERE aciurl == $1", aciURL)
if err != nil {
return nil, err
}
defer rows.Close()
if ok := rows.Next(); !ok {
return nil, ErrRemoteNotFound
}
remote := &Remote{}
if err := remoteRowScan(rows, remote); err != nil {
return nil, err
}
if err := rows.Err(); err != nil {
return nil, err
}
return remote, nil
} | [
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] | // GetRemote tries to retrieve a remote with the given aciURL.
// If remote doesn't exist, it returns ErrRemoteNotFound error. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/store/imagestore/remote.go#L56-L77 |
167,114 | rkt/rkt | store/imagestore/remote.go | GetAllRemotes | func GetAllRemotes(tx *sql.Tx) ([]*Remote, error) {
var remotes []*Remote
query := "SELECT * from remote"
rows, err := tx.Query(query)
if err != nil {
return nil, err
}
defer rows.Close()
for rows.Next() {
r := &Remote{}
if err := remoteRowScan(rows, r); err != nil {
return nil, err
}
remotes = append(remotes, r)
}
if err := rows.Err(); err != nil {
return nil, err
}
return remotes, nil
} | go | func GetAllRemotes(tx *sql.Tx) ([]*Remote, error) {
var remotes []*Remote
query := "SELECT * from remote"
rows, err := tx.Query(query)
if err != nil {
return nil, err
}
defer rows.Close()
for rows.Next() {
r := &Remote{}
if err := remoteRowScan(rows, r); err != nil {
return nil, err
}
remotes = append(remotes, r)
}
if err := rows.Err(); err != nil {
return nil, err
}
return remotes, nil
} | [
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"remotes",
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"}"
] | // GetAllRemotes returns all the ACIInfos sorted by optional sortfields and
// with ascending or descending order. | [
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"sorted",
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"and",
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"order",
"."
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/store/imagestore/remote.go#L81-L110 |
167,115 | rkt/rkt | store/imagestore/remote.go | RemoveRemote | func RemoveRemote(tx *sql.Tx, blobKey string) error {
_, err := tx.Exec("DELETE FROM remote WHERE blobkey == $1", blobKey)
if err != nil {
return err
}
return nil
} | go | func RemoveRemote(tx *sql.Tx, blobKey string) error {
_, err := tx.Exec("DELETE FROM remote WHERE blobkey == $1", blobKey)
if err != nil {
return err
}
return nil
} | [
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"\n",
"}",
"\n",
"return",
"nil",
"\n",
"}"
] | // RemoveRemote removes the remote with the given blobKey. | [
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"the",
"remote",
"with",
"the",
"given",
"blobKey",
"."
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/store/imagestore/remote.go#L128-L134 |
167,116 | rkt/rkt | stage1/init/init.go | machinedRegister | func machinedRegister() bool {
// machined has a D-Bus interface following versioning guidelines, see:
// http://www.freedesktop.org/wiki/Software/systemd/machined/
// Therefore we can just check if the D-Bus method we need exists and we
// don't need to check the signature.
var found int
conn, err := dbus.SystemBus()
if err != nil {
return false
}
node, err := introspect.Call(conn.Object("org.freedesktop.machine1", "/org/freedesktop/machine1"))
if err != nil {
return false
}
for _, iface := range node.Interfaces {
if iface.Name != "org.freedesktop.machine1.Manager" {
continue
}
// machined v215 supports methods "RegisterMachine" and "CreateMachine" called by nspawn v215.
// machined v216+ (since commit 5aa4bb) additionally supports methods "CreateMachineWithNetwork"
// and "RegisterMachineWithNetwork", called by nspawn v216+.
for _, method := range iface.Methods {
if method.Name == "CreateMachineWithNetwork" || method.Name == "RegisterMachineWithNetwork" {
found++
}
}
break
}
return found == 2
} | go | func machinedRegister() bool {
// machined has a D-Bus interface following versioning guidelines, see:
// http://www.freedesktop.org/wiki/Software/systemd/machined/
// Therefore we can just check if the D-Bus method we need exists and we
// don't need to check the signature.
var found int
conn, err := dbus.SystemBus()
if err != nil {
return false
}
node, err := introspect.Call(conn.Object("org.freedesktop.machine1", "/org/freedesktop/machine1"))
if err != nil {
return false
}
for _, iface := range node.Interfaces {
if iface.Name != "org.freedesktop.machine1.Manager" {
continue
}
// machined v215 supports methods "RegisterMachine" and "CreateMachine" called by nspawn v215.
// machined v216+ (since commit 5aa4bb) additionally supports methods "CreateMachineWithNetwork"
// and "RegisterMachineWithNetwork", called by nspawn v216+.
for _, method := range iface.Methods {
if method.Name == "CreateMachineWithNetwork" || method.Name == "RegisterMachineWithNetwork" {
found++
}
}
break
}
return found == 2
} | [
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"bool",
"{",
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"}",
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"}",
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"}"
] | // machinedRegister checks if nspawn should register the pod to machined | [
"machinedRegister",
"checks",
"if",
"nspawn",
"should",
"register",
"the",
"pod",
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/init.go#L162-L192 |
167,117 | rkt/rkt | stage1/init/init.go | mountContainerV1Cgroups | func mountContainerV1Cgroups(m fs.Mounter, p *stage1commontypes.Pod, enabledCgroups map[int][]string, subcgroup string, serviceNames []string) error {
mountContext := os.Getenv(common.EnvSELinuxMountContext)
stage1Root := common.Stage1RootfsPath(p.Root)
if err := v1.CreateCgroups(m, stage1Root, enabledCgroups, mountContext); err != nil {
return errwrap.Wrap(errors.New("error creating container cgroups"), err)
}
if err := v1.RemountCgroups(m, stage1Root, enabledCgroups, subcgroup, p.InsecureOptions.DisablePaths); err != nil {
return errwrap.Wrap(errors.New("error restricting container cgroups"), err)
}
return nil
} | go | func mountContainerV1Cgroups(m fs.Mounter, p *stage1commontypes.Pod, enabledCgroups map[int][]string, subcgroup string, serviceNames []string) error {
mountContext := os.Getenv(common.EnvSELinuxMountContext)
stage1Root := common.Stage1RootfsPath(p.Root)
if err := v1.CreateCgroups(m, stage1Root, enabledCgroups, mountContext); err != nil {
return errwrap.Wrap(errors.New("error creating container cgroups"), err)
}
if err := v1.RemountCgroups(m, stage1Root, enabledCgroups, subcgroup, p.InsecureOptions.DisablePaths); err != nil {
return errwrap.Wrap(errors.New("error restricting container cgroups"), err)
}
return nil
} | [
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] | // mountContainerV1Cgroups mounts the cgroup controllers hierarchy in the container's
// namespace read-only, leaving the needed knobs in the subcgroup for each-app
// read-write so systemd inside stage1 can apply isolators to them | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/init.go#L843-L855 |
167,118 | rkt/rkt | common/networking/ports.go | findAppPort | func findAppPort(manifest *schema.PodManifest, portName types.ACName) (*types.Port, error) {
var foundPort *types.Port
for _, app := range manifest.Apps {
for _, port := range app.App.Ports {
if portName == port.Name {
if foundPort != nil { // error: ambiguous
return nil, fmt.Errorf("port name %q defined multiple apps", portName)
}
p := port // duplicate b/c port gets overwritten
foundPort = &p
}
}
}
return foundPort, nil
} | go | func findAppPort(manifest *schema.PodManifest, portName types.ACName) (*types.Port, error) {
var foundPort *types.Port
for _, app := range manifest.Apps {
for _, port := range app.App.Ports {
if portName == port.Name {
if foundPort != nil { // error: ambiguous
return nil, fmt.Errorf("port name %q defined multiple apps", portName)
}
p := port // duplicate b/c port gets overwritten
foundPort = &p
}
}
}
return foundPort, nil
} | [
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] | // findAppPort looks through the manifest to find a port with a given name.
// If multiple apps expose the same port name, it will fail | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/common/networking/ports.go#L34-L49 |
167,119 | rkt/rkt | common/networking/ports.go | conflicts | func (fp *ForwardedPort) conflicts(fp1 *ForwardedPort) bool {
if fp.PodPort.Protocol != fp1.PodPort.Protocol {
return false
}
if fp.HostPort.HostPort != fp1.HostPort.HostPort {
return false
}
// If either port has the 0.0.0.0 address, they conflict
zeroAddr := net.IPv4(0, 0, 0, 0)
if fp.HostPort.HostIP.Equal(zeroAddr) || fp1.HostPort.HostIP.Equal(zeroAddr) {
return true
}
if fp.HostPort.HostIP.Equal(fp1.HostPort.HostIP) {
return true
}
return false
} | go | func (fp *ForwardedPort) conflicts(fp1 *ForwardedPort) bool {
if fp.PodPort.Protocol != fp1.PodPort.Protocol {
return false
}
if fp.HostPort.HostPort != fp1.HostPort.HostPort {
return false
}
// If either port has the 0.0.0.0 address, they conflict
zeroAddr := net.IPv4(0, 0, 0, 0)
if fp.HostPort.HostIP.Equal(zeroAddr) || fp1.HostPort.HostIP.Equal(zeroAddr) {
return true
}
if fp.HostPort.HostIP.Equal(fp1.HostPort.HostIP) {
return true
}
return false
} | [
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] | // conflicts checks if two ports conflict with each other | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/common/networking/ports.go#L99-L119 |
167,120 | rkt/rkt | pkg/flag/pairlist.go | SetOne | func (pl *PairList) SetOne(key, val string) error {
// Check that key is allowed
if len(pl.permissible) > 0 {
permVals, ok := pl.permissible[key]
if !ok {
return fmt.Errorf("key %v is not allowed", key)
}
// Check that value is allowed
if len(permVals) > 0 {
_, ok = permVals[val]
if !ok {
return fmt.Errorf("key %v does not allow value %v", key, val)
}
}
}
pl.Pairs[key] = val
return nil
} | go | func (pl *PairList) SetOne(key, val string) error {
// Check that key is allowed
if len(pl.permissible) > 0 {
permVals, ok := pl.permissible[key]
if !ok {
return fmt.Errorf("key %v is not allowed", key)
}
// Check that value is allowed
if len(permVals) > 0 {
_, ok = permVals[val]
if !ok {
return fmt.Errorf("key %v does not allow value %v", key, val)
}
}
}
pl.Pairs[key] = val
return nil
} | [
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// It will overwrite an existing value | [
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167,121 | rkt/rkt | pkg/flag/pairlist.go | Keys | func (pl *PairList) Keys() []string {
keys := make([]string, 0, len(pl.Pairs))
for k := range pl.Pairs {
keys = append(keys, k)
}
sort.Strings(keys)
return keys
} | go | func (pl *PairList) Keys() []string {
keys := make([]string, 0, len(pl.Pairs))
for k := range pl.Pairs {
keys = append(keys, k)
}
sort.Strings(keys)
return keys
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167,122 | rkt/rkt | pkg/flag/pairlist.go | String | func (pl *PairList) String() string {
ps := make([]string, 0, len(pl.Pairs))
for _, k := range pl.Keys() {
ps = append(ps, fmt.Sprintf("%v=%v", k, pl.Pairs[k]))
}
return strings.Join(ps, " ")
} | go | func (pl *PairList) String() string {
ps := make([]string, 0, len(pl.Pairs))
for _, k := range pl.Keys() {
ps = append(ps, fmt.Sprintf("%v=%v", k, pl.Pairs[k]))
}
return strings.Join(ps, " ")
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167,123 | rkt/rkt | pkg/flag/pairlist.go | SerializePairs | func SerializePairs(pairs map[string]string) string {
tmp := make([]string, 0, len(pairs))
for k, v := range pairs {
tmp = append(tmp, fmt.Sprintf("%s=%s", k, v))
}
return strings.Join(tmp, ",")
} | go | func SerializePairs(pairs map[string]string) string {
tmp := make([]string, 0, len(pairs))
for k, v := range pairs {
tmp = append(tmp, fmt.Sprintf("%s=%s", k, v))
}
return strings.Join(tmp, ",")
} | [
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167,124 | rkt/rkt | pkg/tar/chroot.go | extractTarCommand | func extractTarCommand() error {
if len(os.Args) != 5 {
return fmt.Errorf("incorrect number of arguments. Usage: %s DIR {true|false} uidShift uidCount", multicallName)
}
if !sys.HasChrootCapability() {
return fmt.Errorf("chroot capability not available.")
}
dir := os.Args[1]
if !filepath.IsAbs(dir) {
return fmt.Errorf("dir %s must be an absolute path", dir)
}
overwrite, err := strconv.ParseBool(os.Args[2])
if err != nil {
return fmt.Errorf("error parsing overwrite argument: %v", err)
}
us, err := strconv.ParseUint(os.Args[3], 10, 32)
if err != nil {
return fmt.Errorf("error parsing uidShift argument: %v", err)
}
uc, err := strconv.ParseUint(os.Args[4], 10, 32)
if err != nil {
return fmt.Errorf("error parsing uidCount argument: %v", err)
}
uidRange := &user.UidRange{Shift: uint32(us), Count: uint32(uc)}
if err := syscall.Chroot(dir); err != nil {
return fmt.Errorf("failed to chroot in %s: %v", dir, err)
}
if err := syscall.Chdir("/"); err != nil {
return fmt.Errorf("failed to chdir: %v", err)
}
fileMapFile := os.NewFile(uintptr(fileMapFdNum), "fileMap")
fileMap := map[string]struct{}{}
if err := json.NewDecoder(fileMapFile).Decode(&fileMap); err != nil {
return fmt.Errorf("error decoding fileMap: %v", err)
}
editor, err := NewUidShiftingFilePermEditor(uidRange)
if err != nil {
return fmt.Errorf("error determining current user: %v", err)
}
if err := ExtractTarInsecure(tar.NewReader(os.Stdin), "/", overwrite, fileMap, editor); err != nil {
return fmt.Errorf("error extracting tar: %v", err)
}
// flush remaining bytes
io.Copy(ioutil.Discard, os.Stdin)
return nil
} | go | func extractTarCommand() error {
if len(os.Args) != 5 {
return fmt.Errorf("incorrect number of arguments. Usage: %s DIR {true|false} uidShift uidCount", multicallName)
}
if !sys.HasChrootCapability() {
return fmt.Errorf("chroot capability not available.")
}
dir := os.Args[1]
if !filepath.IsAbs(dir) {
return fmt.Errorf("dir %s must be an absolute path", dir)
}
overwrite, err := strconv.ParseBool(os.Args[2])
if err != nil {
return fmt.Errorf("error parsing overwrite argument: %v", err)
}
us, err := strconv.ParseUint(os.Args[3], 10, 32)
if err != nil {
return fmt.Errorf("error parsing uidShift argument: %v", err)
}
uc, err := strconv.ParseUint(os.Args[4], 10, 32)
if err != nil {
return fmt.Errorf("error parsing uidCount argument: %v", err)
}
uidRange := &user.UidRange{Shift: uint32(us), Count: uint32(uc)}
if err := syscall.Chroot(dir); err != nil {
return fmt.Errorf("failed to chroot in %s: %v", dir, err)
}
if err := syscall.Chdir("/"); err != nil {
return fmt.Errorf("failed to chdir: %v", err)
}
fileMapFile := os.NewFile(uintptr(fileMapFdNum), "fileMap")
fileMap := map[string]struct{}{}
if err := json.NewDecoder(fileMapFile).Decode(&fileMap); err != nil {
return fmt.Errorf("error decoding fileMap: %v", err)
}
editor, err := NewUidShiftingFilePermEditor(uidRange)
if err != nil {
return fmt.Errorf("error determining current user: %v", err)
}
if err := ExtractTarInsecure(tar.NewReader(os.Stdin), "/", overwrite, fileMap, editor); err != nil {
return fmt.Errorf("error extracting tar: %v", err)
}
// flush remaining bytes
io.Copy(ioutil.Discard, os.Stdin)
return nil
} | [
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] | // Because this function is executed by multicall in a different process, it is not possible to use errwrap to return errors | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/tar/chroot.go#L47-L98 |
167,125 | rkt/rkt | pkg/distribution/docker.go | NewDocker | func NewDocker(u *url.URL) (Distribution, error) {
dp, err := parseCIMD(u)
if err != nil {
return nil, fmt.Errorf("cannot parse URI: %q: %v", u.String(), err)
}
if dp.Type != TypeDocker {
return nil, fmt.Errorf("wrong distribution type: %q", dp.Type)
}
parsed, err := d2acommon.ParseDockerURL(dp.Data)
if err != nil {
return nil, fmt.Errorf("bad docker URL %q: %v", dp.Data, err)
}
return &Docker{
url: dp.Data,
parsedURL: parsed,
simple: SimpleDockerRef(parsed),
full: FullDockerRef(parsed),
}, nil
} | go | func NewDocker(u *url.URL) (Distribution, error) {
dp, err := parseCIMD(u)
if err != nil {
return nil, fmt.Errorf("cannot parse URI: %q: %v", u.String(), err)
}
if dp.Type != TypeDocker {
return nil, fmt.Errorf("wrong distribution type: %q", dp.Type)
}
parsed, err := d2acommon.ParseDockerURL(dp.Data)
if err != nil {
return nil, fmt.Errorf("bad docker URL %q: %v", dp.Data, err)
}
return &Docker{
url: dp.Data,
parsedURL: parsed,
simple: SimpleDockerRef(parsed),
full: FullDockerRef(parsed),
}, nil
} | [
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"dp",
".",
"Data",
",",
"parsedURL",
":",
"parsed",
",",
"simple",
":",
"SimpleDockerRef",
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",",
"full",
":",
"FullDockerRef",
"(",
"parsed",
")",
",",
"}",
",",
"nil",
"\n",
"}"
] | // NewDocker creates a new docker distribution from the provided distribution uri string | [
"NewDocker",
"creates",
"a",
"new",
"docker",
"distribution",
"from",
"the",
"provided",
"distribution",
"uri",
"string"
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/distribution/docker.go#L58-L78 |
167,126 | rkt/rkt | stage1/init/common/pod.go | execEscape | func execEscape(i int, str string) string {
escapeMap := map[string]string{
`'`: `\`,
}
if i > 0 { // These are escaped only after the first argument
escapeMap[`$`] = `$`
escapeMap[`%`] = `%`
}
escArg := fmt.Sprintf("%q", str)
for k := range escapeMap {
reStr := `([` + regexp.QuoteMeta(k) + `])`
re := regexp.MustCompile(reStr)
escArg = re.ReplaceAllStringFunc(escArg, func(s string) string {
escaped := escapeMap[s] + s
return escaped
})
}
return escArg
} | go | func execEscape(i int, str string) string {
escapeMap := map[string]string{
`'`: `\`,
}
if i > 0 { // These are escaped only after the first argument
escapeMap[`$`] = `$`
escapeMap[`%`] = `%`
}
escArg := fmt.Sprintf("%q", str)
for k := range escapeMap {
reStr := `([` + regexp.QuoteMeta(k) + `])`
re := regexp.MustCompile(reStr)
escArg = re.ReplaceAllStringFunc(escArg, func(s string) string {
escaped := escapeMap[s] + s
return escaped
})
}
return escArg
} | [
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] | // execEscape uses Golang's string quoting for ", \, \n, and regex for special cases | [
"execEscape",
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"for",
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/common/pod.go#L51-L71 |
167,127 | rkt/rkt | stage1/init/common/pod.go | quoteExec | func quoteExec(exec []string) string {
if len(exec) == 0 {
// existing callers always include at least the binary so this shouldn't occur.
panic("empty exec")
}
var qexec []string
for i, arg := range exec {
escArg := execEscape(i, arg)
qexec = append(qexec, escArg)
}
return strings.Join(qexec, " ")
} | go | func quoteExec(exec []string) string {
if len(exec) == 0 {
// existing callers always include at least the binary so this shouldn't occur.
panic("empty exec")
}
var qexec []string
for i, arg := range exec {
escArg := execEscape(i, arg)
qexec = append(qexec, escArg)
}
return strings.Join(qexec, " ")
} | [
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] | // quoteExec returns an array of quoted strings appropriate for systemd execStart usage | [
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"for",
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/common/pod.go#L74-L86 |
167,128 | rkt/rkt | stage1/init/common/pod.go | SetJournalPermissions | func SetJournalPermissions(p *stage1commontypes.Pod) error {
s1 := common.Stage1ImagePath(p.Root)
rktgid, err := common.LookupGid(common.RktGroup)
if err != nil {
return fmt.Errorf("group %q not found", common.RktGroup)
}
journalPath := filepath.Join(s1, "rootfs", "var", "log", "journal")
if err := os.MkdirAll(journalPath, os.FileMode(0755)); err != nil {
return errwrap.Wrap(errors.New("error creating journal dir"), err)
}
a, err := acl.InitACL()
if err != nil {
return err
}
defer a.Free()
if err := a.ParseACL(fmt.Sprintf("g:%d:r-x,m:r-x", rktgid)); err != nil {
return errwrap.Wrap(errors.New("error parsing ACL string"), err)
}
if err := a.AddBaseEntries(journalPath); err != nil {
return errwrap.Wrap(errors.New("error adding base ACL entries"), err)
}
if err := a.Valid(); err != nil {
return err
}
if err := a.SetFileACLDefault(journalPath); err != nil {
return errwrap.Wrap(fmt.Errorf("error setting default ACLs on %q", journalPath), err)
}
return nil
} | go | func SetJournalPermissions(p *stage1commontypes.Pod) error {
s1 := common.Stage1ImagePath(p.Root)
rktgid, err := common.LookupGid(common.RktGroup)
if err != nil {
return fmt.Errorf("group %q not found", common.RktGroup)
}
journalPath := filepath.Join(s1, "rootfs", "var", "log", "journal")
if err := os.MkdirAll(journalPath, os.FileMode(0755)); err != nil {
return errwrap.Wrap(errors.New("error creating journal dir"), err)
}
a, err := acl.InitACL()
if err != nil {
return err
}
defer a.Free()
if err := a.ParseACL(fmt.Sprintf("g:%d:r-x,m:r-x", rktgid)); err != nil {
return errwrap.Wrap(errors.New("error parsing ACL string"), err)
}
if err := a.AddBaseEntries(journalPath); err != nil {
return errwrap.Wrap(errors.New("error adding base ACL entries"), err)
}
if err := a.Valid(); err != nil {
return err
}
if err := a.SetFileACLDefault(journalPath); err != nil {
return errwrap.Wrap(fmt.Errorf("error setting default ACLs on %q", journalPath), err)
}
return nil
} | [
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"}"
] | // SetJournalPermissions sets ACLs and permissions so the rkt group can access
// the pod's logs | [
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"and",
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"so",
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"logs"
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/common/pod.go#L118-L154 |
167,129 | rkt/rkt | stage1/init/common/pod.go | findHostPort | func findHostPort(pm schema.PodManifest, name types.ACName) uint {
var port uint
for _, p := range pm.Ports {
if p.Name == name {
port = p.HostPort
}
}
return port
} | go | func findHostPort(pm schema.PodManifest, name types.ACName) uint {
var port uint
for _, p := range pm.Ports {
if p.Name == name {
port = p.HostPort
}
}
return port
} | [
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] | // findHostPort returns the port number on the host that corresponds to an
// image manifest port identified by name | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/common/pod.go#L166-L174 |
167,130 | rkt/rkt | stage1/init/common/pod.go | appSearchPaths | func appSearchPaths(p *stage1commontypes.Pod, workDir string, app types.App) []string {
appEnv := app.Environment
if imgPath, ok := appEnv.Get("PATH"); ok {
return strings.Split(imgPath, ":")
}
// emulate exec(3) behavior, first check working directory and then the
// list of directories returned by confstr(_CS_PATH). That's typically
// "/bin:/usr/bin" so let's use that.
return []string{workDir, "/bin", "/usr/bin"}
} | go | func appSearchPaths(p *stage1commontypes.Pod, workDir string, app types.App) []string {
appEnv := app.Environment
if imgPath, ok := appEnv.Get("PATH"); ok {
return strings.Split(imgPath, ":")
}
// emulate exec(3) behavior, first check working directory and then the
// list of directories returned by confstr(_CS_PATH). That's typically
// "/bin:/usr/bin" so let's use that.
return []string{workDir, "/bin", "/usr/bin"}
} | [
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] | // appSearchPaths returns a list of paths where we should search for
// non-absolute exec binaries | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/common/pod.go#L251-L262 |
167,131 | rkt/rkt | stage1/init/common/pod.go | FindBinPath | func FindBinPath(p *stage1commontypes.Pod, ra *schema.RuntimeApp) (string, error) {
if len(ra.App.Exec) == 0 {
return "", errors.New("app has no executable")
}
bin := ra.App.Exec[0]
var binPath string
switch {
// absolute path, just use it
case filepath.IsAbs(bin):
binPath = bin
// non-absolute path containing a slash, look in the working dir
case strings.Contains(bin, "/"):
binPath = filepath.Join(ra.App.WorkingDirectory, bin)
// filename, search in the app's $PATH
default:
absRoot, err := filepath.Abs(p.Root)
if err != nil {
return "", errwrap.Wrap(errors.New("could not get pod's root absolute path"), err)
}
appRootfs := common.AppRootfsPath(absRoot, ra.Name)
appPathDirs := appSearchPaths(p, ra.App.WorkingDirectory, *ra.App)
appPath := strings.Join(appPathDirs, ":")
binPath, err = lookupPathInsideApp(bin, appPath, appRootfs, ra.App.WorkingDirectory)
if err != nil {
return "", errwrap.Wrap(fmt.Errorf("error looking up %q", bin), err)
}
}
return binPath, nil
} | go | func FindBinPath(p *stage1commontypes.Pod, ra *schema.RuntimeApp) (string, error) {
if len(ra.App.Exec) == 0 {
return "", errors.New("app has no executable")
}
bin := ra.App.Exec[0]
var binPath string
switch {
// absolute path, just use it
case filepath.IsAbs(bin):
binPath = bin
// non-absolute path containing a slash, look in the working dir
case strings.Contains(bin, "/"):
binPath = filepath.Join(ra.App.WorkingDirectory, bin)
// filename, search in the app's $PATH
default:
absRoot, err := filepath.Abs(p.Root)
if err != nil {
return "", errwrap.Wrap(errors.New("could not get pod's root absolute path"), err)
}
appRootfs := common.AppRootfsPath(absRoot, ra.Name)
appPathDirs := appSearchPaths(p, ra.App.WorkingDirectory, *ra.App)
appPath := strings.Join(appPathDirs, ":")
binPath, err = lookupPathInsideApp(bin, appPath, appRootfs, ra.App.WorkingDirectory)
if err != nil {
return "", errwrap.Wrap(fmt.Errorf("error looking up %q", bin), err)
}
}
return binPath, nil
} | [
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"}"
] | // FindBinPath takes a binary path and returns a the absolute path of the
// binary relative to the app rootfs. This can be passed to ExecStart on the
// app's systemd service file directly. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/common/pod.go#L267-L299 |
167,132 | rkt/rkt | stage1/init/common/pod.go | EvaluateSymlinksInsideApp | func EvaluateSymlinksInsideApp(appRootfs, path string) (string, error) {
chroot, err := newChroot(appRootfs)
if err != nil {
return "", errwrap.Wrapf(fmt.Sprintf("chroot to %q failed", appRootfs), err)
}
target, err := fileutil.EvalSymlinksAlways(path)
if err != nil {
return "", errwrap.Wrapf(fmt.Sprintf("evaluating symlinks of %q failed", path), err)
}
// EvalSymlinksAlways might return a relative path
abs, err := filepath.Abs(target)
if err != nil {
return "", errwrap.Wrapf(fmt.Sprintf("failed to get absolute representation of %q", target), err)
}
if err := chroot.escape(); err != nil {
return "", errwrap.Wrapf(fmt.Sprintf("escaping chroot %q failed", appRootfs), err)
}
return abs, nil
} | go | func EvaluateSymlinksInsideApp(appRootfs, path string) (string, error) {
chroot, err := newChroot(appRootfs)
if err != nil {
return "", errwrap.Wrapf(fmt.Sprintf("chroot to %q failed", appRootfs), err)
}
target, err := fileutil.EvalSymlinksAlways(path)
if err != nil {
return "", errwrap.Wrapf(fmt.Sprintf("evaluating symlinks of %q failed", path), err)
}
// EvalSymlinksAlways might return a relative path
abs, err := filepath.Abs(target)
if err != nil {
return "", errwrap.Wrapf(fmt.Sprintf("failed to get absolute representation of %q", target), err)
}
if err := chroot.escape(); err != nil {
return "", errwrap.Wrapf(fmt.Sprintf("escaping chroot %q failed", appRootfs), err)
}
return abs, nil
} | [
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// It returns the actual path relative to the app rootfs for the given path.
// This is needed for absolute symlinks - we are in a different rootfs. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/common/pod.go#L434-L456 |
167,133 | rkt/rkt | stage1/init/common/pod.go | PodToNspawnArgs | func PodToNspawnArgs(p *stage1commontypes.Pod) ([]string, error) {
args := []string{
"--uuid=" + p.UUID.String(),
"--machine=" + GetMachineID(p),
"--directory=" + common.Stage1RootfsPath(p.Root),
}
for i := range p.Manifest.Apps {
aa, err := appToNspawnArgs(p, &p.Manifest.Apps[i])
if err != nil {
return nil, err
}
args = append(args, aa...)
}
if p.InsecureOptions.DisableCapabilities {
args = append(args, "--capability=all")
}
return args, nil
} | go | func PodToNspawnArgs(p *stage1commontypes.Pod) ([]string, error) {
args := []string{
"--uuid=" + p.UUID.String(),
"--machine=" + GetMachineID(p),
"--directory=" + common.Stage1RootfsPath(p.Root),
}
for i := range p.Manifest.Apps {
aa, err := appToNspawnArgs(p, &p.Manifest.Apps[i])
if err != nil {
return nil, err
}
args = append(args, aa...)
}
if p.InsecureOptions.DisableCapabilities {
args = append(args, "--capability=all")
}
return args, nil
} | [
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// argument list ready to be executed | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/common/pod.go#L546-L566 |
167,134 | rkt/rkt | stage1/init/common/pod.go | GetFlavor | func GetFlavor(p *stage1commontypes.Pod) (flavor string, systemdVersion int, err error) {
flavor, err = os.Readlink(filepath.Join(common.Stage1RootfsPath(p.Root), "flavor"))
if err != nil {
return "", -1, errwrap.Wrap(errors.New("unable to determine stage1 flavor"), err)
}
if flavor == "host" {
// This flavor does not contain systemd, parse "systemctl --version"
systemctlBin, err := common.LookupPath("systemctl", os.Getenv("PATH"))
if err != nil {
return "", -1, err
}
systemdVersion, err := common.SystemdVersion(systemctlBin)
if err != nil {
return "", -1, errwrap.Wrap(errors.New("error finding systemctl version"), err)
}
return flavor, systemdVersion, nil
}
systemdVersionBytes, err := ioutil.ReadFile(filepath.Join(common.Stage1RootfsPath(p.Root), "systemd-version"))
if err != nil {
return "", -1, errwrap.Wrap(errors.New("unable to determine stage1's systemd version"), err)
}
systemdVersionString := strings.Trim(string(systemdVersionBytes), " \n")
// systemdVersionString is either a tag name or a branch name. If it's a
// tag name it's of the form "v229", remove the first character to get the
// number.
systemdVersion, err = strconv.Atoi(systemdVersionString[1:])
if err != nil {
// If we get a syntax error, it means the parsing of the version string
// of the form "v229" failed, set it to 0 to indicate we couldn't guess
// it.
if e, ok := err.(*strconv.NumError); ok && e.Err == strconv.ErrSyntax {
systemdVersion = 0
} else {
return "", -1, errwrap.Wrap(errors.New("error parsing stage1's systemd version"), err)
}
}
return flavor, systemdVersion, nil
} | go | func GetFlavor(p *stage1commontypes.Pod) (flavor string, systemdVersion int, err error) {
flavor, err = os.Readlink(filepath.Join(common.Stage1RootfsPath(p.Root), "flavor"))
if err != nil {
return "", -1, errwrap.Wrap(errors.New("unable to determine stage1 flavor"), err)
}
if flavor == "host" {
// This flavor does not contain systemd, parse "systemctl --version"
systemctlBin, err := common.LookupPath("systemctl", os.Getenv("PATH"))
if err != nil {
return "", -1, err
}
systemdVersion, err := common.SystemdVersion(systemctlBin)
if err != nil {
return "", -1, errwrap.Wrap(errors.New("error finding systemctl version"), err)
}
return flavor, systemdVersion, nil
}
systemdVersionBytes, err := ioutil.ReadFile(filepath.Join(common.Stage1RootfsPath(p.Root), "systemd-version"))
if err != nil {
return "", -1, errwrap.Wrap(errors.New("unable to determine stage1's systemd version"), err)
}
systemdVersionString := strings.Trim(string(systemdVersionBytes), " \n")
// systemdVersionString is either a tag name or a branch name. If it's a
// tag name it's of the form "v229", remove the first character to get the
// number.
systemdVersion, err = strconv.Atoi(systemdVersionString[1:])
if err != nil {
// If we get a syntax error, it means the parsing of the version string
// of the form "v229" failed, set it to 0 to indicate we couldn't guess
// it.
if e, ok := err.(*strconv.NumError); ok && e.Err == strconv.ErrSyntax {
systemdVersion = 0
} else {
return "", -1, errwrap.Wrap(errors.New("error parsing stage1's systemd version"), err)
}
}
return flavor, systemdVersion, nil
} | [
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// If the systemd version couldn't be guessed, it will be set to 0. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/common/pod.go#L570-L612 |
167,135 | rkt/rkt | stage1/init/common/pod.go | GetAppHashes | func GetAppHashes(p *stage1commontypes.Pod) []types.Hash {
var names []types.Hash
for _, a := range p.Manifest.Apps {
names = append(names, a.Image.ID)
}
return names
} | go | func GetAppHashes(p *stage1commontypes.Pod) []types.Hash {
var names []types.Hash
for _, a := range p.Manifest.Apps {
names = append(names, a.Image.ID)
}
return names
} | [
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] | // GetAppHashes returns a list of hashes of the apps in this pod | [
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167,136 | rkt/rkt | stage1/init/common/pod.go | parseLinuxCapabilitiesSet | func parseLinuxCapabilitiesSet(capSet types.LinuxCapabilitiesSet) []string {
var capsStr []string
for _, cap := range capSet.Set() {
capsStr = append(capsStr, string(cap))
}
return capsStr
} | go | func parseLinuxCapabilitiesSet(capSet types.LinuxCapabilitiesSet) []string {
var capsStr []string
for _, cap := range capSet.Set() {
capsStr = append(capsStr, string(cap))
}
return capsStr
} | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/common/pod.go#L708-L714 |
167,137 | rkt/rkt | stage1/init/common/pod.go | escape | func (c *chroot) escape() error {
// change directory to outer root and close it
if err := syscall.Fchdir(int(c.root.Fd())); err != nil {
return errwrap.Wrapf("changing directory to outer root failed", err)
}
if err := c.root.Close(); err != nil {
return errwrap.Wrapf("closing outer root failed", err)
}
// chroot to current directory aka "." being the outer root
if err := syscall.Chroot("."); err != nil {
return errwrap.Wrapf("chroot to current directory failed", err)
}
// chdir into previous working directory
if err := os.Chdir(c.wd); err != nil {
return errwrap.Wrapf("chdir to working directory failed", err)
}
return nil
} | go | func (c *chroot) escape() error {
// change directory to outer root and close it
if err := syscall.Fchdir(int(c.root.Fd())); err != nil {
return errwrap.Wrapf("changing directory to outer root failed", err)
}
if err := c.root.Close(); err != nil {
return errwrap.Wrapf("closing outer root failed", err)
}
// chroot to current directory aka "." being the outer root
if err := syscall.Chroot("."); err != nil {
return errwrap.Wrapf("chroot to current directory failed", err)
}
// chdir into previous working directory
if err := os.Chdir(c.wd); err != nil {
return errwrap.Wrapf("chdir to working directory failed", err)
}
return nil
} | [
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"\n",
"}",
"\n\n",
"return",
"nil",
"\n",
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] | // Escape escapes the chroot environment changing back to the original working directory where newChroot was invoked. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/common/pod.go#L763-L784 |
167,138 | rkt/rkt | common/apps/apps.go | SeccompOverride | func (a *App) SeccompOverride() (mode string, errno string, set []string, e error) {
if a.SeccompFilter == "" {
return
}
for _, i := range strings.Split(a.SeccompFilter, ",") {
kv := strings.Split(i, "=")
if len(kv) == 2 {
switch kv[0] {
case "mode":
if kv[1] != "remove" && kv[1] != "retain" {
e = ErrInvalidSeccompMode
}
mode = kv[1]
case "errno":
errno = kv[1]
default:
e = ErrInvalidSeccompOverride
}
} else {
set = append(set, i)
}
}
return
} | go | func (a *App) SeccompOverride() (mode string, errno string, set []string, e error) {
if a.SeccompFilter == "" {
return
}
for _, i := range strings.Split(a.SeccompFilter, ",") {
kv := strings.Split(i, "=")
if len(kv) == 2 {
switch kv[0] {
case "mode":
if kv[1] != "remove" && kv[1] != "retain" {
e = ErrInvalidSeccompMode
}
mode = kv[1]
case "errno":
errno = kv[1]
default:
e = ErrInvalidSeccompOverride
}
} else {
set = append(set, i)
}
}
return
} | [
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] | // SeccompFilter returns type, filter set and optional errno
// for a seccomp filter override specified via CLI | [
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"and",
"optional",
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/common/apps/apps.go#L86-L109 |
167,139 | rkt/rkt | common/apps/apps.go | Create | func (al *Apps) Create(img string) {
al.apps = append(al.apps, App{Image: img})
} | go | func (al *Apps) Create(img string) {
al.apps = append(al.apps, App{Image: img})
} | [
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] | // Create creates a new app in al and returns a pointer to it | [
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167,140 | rkt/rkt | common/apps/apps.go | Last | func (al *Apps) Last() *App {
if len(al.apps) == 0 {
return nil
}
return &al.apps[len(al.apps)-1]
} | go | func (al *Apps) Last() *App {
if len(al.apps) == 0 {
return nil
}
return &al.apps[len(al.apps)-1]
} | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/common/apps/apps.go#L127-L132 |
167,141 | rkt/rkt | common/apps/apps.go | Walk | func (al *Apps) Walk(f func(*App) error) error {
for i := range al.apps {
// XXX(vc): note we supply f() with a pointer to the app instance in al.apps to enable modification by f()
if err := f(&al.apps[i]); err != nil {
return err
}
}
return nil
} | go | func (al *Apps) Walk(f func(*App) error) error {
for i := range al.apps {
// XXX(vc): note we supply f() with a pointer to the app instance in al.apps to enable modification by f()
if err := f(&al.apps[i]); err != nil {
return err
}
}
return nil
} | [
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// walking stops if f returns an error, the error is simply returned | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/common/apps/apps.go#L167-L175 |
167,142 | rkt/rkt | common/apps/apps.go | GetArgs | func (al *Apps) GetArgs() [][]string {
var aal [][]string
for _, a := range al.apps {
aal = append(aal, a.Args)
}
return aal
} | go | func (al *Apps) GetArgs() [][]string {
var aal [][]string
for _, a := range al.apps {
aal = append(aal, a.Args)
}
return aal
} | [
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] | // GetArgs returns a list of lists of arguments in al, one list of args per app.
// The order reflects the app order in al. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/common/apps/apps.go#L192-L198 |
167,143 | rkt/rkt | stage1/common/run.go | WithClearedCloExec | func WithClearedCloExec(lfd int, f func() error) error {
err := sys.CloseOnExec(lfd, false)
if err != nil {
return err
}
defer sys.CloseOnExec(lfd, true)
return f()
} | go | func WithClearedCloExec(lfd int, f func() error) error {
err := sys.CloseOnExec(lfd, false)
if err != nil {
return err
}
defer sys.CloseOnExec(lfd, true)
return f()
} | [
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] | // WithClearedCloExec executes a given function in between setting and unsetting the close-on-exit flag
// on the given file descriptor | [
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167,144 | rkt/rkt | stage1/common/run.go | PrepareEnterCmd | func PrepareEnterCmd(enterStage2 bool) []string {
var args []string
enterCmd := os.Getenv(common.CrossingEnterCmd)
enterPID := os.Getenv(common.CrossingEnterPID)
if enterCmd != "" && enterPID != "" {
args = append(args, []string{enterCmd, fmt.Sprintf("--pid=%s", enterPID)}...)
enterApp := os.Getenv(common.CrossingEnterApp)
if enterApp != "" && enterStage2 {
args = append(args, fmt.Sprintf("--app=%s", enterApp))
}
args = append(args, "--")
}
return args
} | go | func PrepareEnterCmd(enterStage2 bool) []string {
var args []string
enterCmd := os.Getenv(common.CrossingEnterCmd)
enterPID := os.Getenv(common.CrossingEnterPID)
if enterCmd != "" && enterPID != "" {
args = append(args, []string{enterCmd, fmt.Sprintf("--pid=%s", enterPID)}...)
enterApp := os.Getenv(common.CrossingEnterApp)
if enterApp != "" && enterStage2 {
args = append(args, fmt.Sprintf("--app=%s", enterApp))
}
args = append(args, "--")
}
return args
} | [
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] | // PrepareEnterCmd retrieves enter argument and prepare a command list
// to further run a command in stage1 context | [
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"context"
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/common/run.go#L59-L72 |
167,145 | rkt/rkt | pkg/passwd/passwd.go | LookupUidFromFile | func LookupUidFromFile(userName, passwdFile string) (uid int, err error) {
users, err := parsePasswdFile(passwdFile)
if err != nil {
return -1, errwrap.Wrap(fmt.Errorf("error parsing %q file", passwdFile), err)
}
user, ok := users[userName]
if !ok {
return -1, fmt.Errorf("%q user not found", userName)
}
return user.Uid, nil
} | go | func LookupUidFromFile(userName, passwdFile string) (uid int, err error) {
users, err := parsePasswdFile(passwdFile)
if err != nil {
return -1, errwrap.Wrap(fmt.Errorf("error parsing %q file", passwdFile), err)
}
user, ok := users[userName]
if !ok {
return -1, fmt.Errorf("%q user not found", userName)
}
return user.Uid, nil
} | [
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"}"
] | // LookupUidFromFile reads the passwd file specified by passwdFile, and returns the
// uid of the user specified by userName. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/passwd/passwd.go#L46-L58 |
167,146 | rkt/rkt | pkg/passwd/passwd.go | LookupUid | func LookupUid(userName string) (uid int, err error) {
return LookupUidFromFile(userName, passwdFilePath)
} | go | func LookupUid(userName string) (uid int, err error) {
return LookupUidFromFile(userName, passwdFilePath)
} | [
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")",
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"}"
] | // LookupUid reads the passwd file and returns the uid of the user
// specified by userName. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/passwd/passwd.go#L62-L64 |
167,147 | rkt/rkt | pkg/aci/render.go | RenderACIWithImageID | func RenderACIWithImageID(imageID types.Hash, dir string, ap acirenderer.ACIRegistry, uidRange *user.UidRange) error {
renderedACI, err := acirenderer.GetRenderedACIWithImageID(imageID, ap)
if err != nil {
return err
}
return renderImage(renderedACI, dir, ap, uidRange)
} | go | func RenderACIWithImageID(imageID types.Hash, dir string, ap acirenderer.ACIRegistry, uidRange *user.UidRange) error {
renderedACI, err := acirenderer.GetRenderedACIWithImageID(imageID, ap)
if err != nil {
return err
}
return renderImage(renderedACI, dir, ap, uidRange)
} | [
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] | // Given an imageID, start with the matching image available in the store,
// build its dependency list and render it inside dir | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/aci/render.go#L31-L37 |
167,148 | rkt/rkt | pkg/aci/render.go | RenderACI | func RenderACI(name types.ACIdentifier, labels types.Labels, dir string, ap acirenderer.ACIRegistry, uidRange *user.UidRange) error {
renderedACI, err := acirenderer.GetRenderedACI(name, labels, ap)
if err != nil {
return err
}
return renderImage(renderedACI, dir, ap, uidRange)
} | go | func RenderACI(name types.ACIdentifier, labels types.Labels, dir string, ap acirenderer.ACIRegistry, uidRange *user.UidRange) error {
renderedACI, err := acirenderer.GetRenderedACI(name, labels, ap)
if err != nil {
return err
}
return renderImage(renderedACI, dir, ap, uidRange)
} | [
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] | // Given an image app name and optional labels, get the best matching image
// available in the store, build its dependency list and render it inside dir | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/aci/render.go#L41-L47 |
167,149 | rkt/rkt | pkg/aci/render.go | RenderACIFromList | func RenderACIFromList(imgs acirenderer.Images, dir string, ap acirenderer.ACIProvider, uidRange *user.UidRange) error {
renderedACI, err := acirenderer.GetRenderedACIFromList(imgs, ap)
if err != nil {
return err
}
return renderImage(renderedACI, dir, ap, uidRange)
} | go | func RenderACIFromList(imgs acirenderer.Images, dir string, ap acirenderer.ACIProvider, uidRange *user.UidRange) error {
renderedACI, err := acirenderer.GetRenderedACIFromList(imgs, ap)
if err != nil {
return err
}
return renderImage(renderedACI, dir, ap, uidRange)
} | [
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// directory, the rendered ACI | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/aci/render.go#L51-L57 |
167,150 | rkt/rkt | pkg/aci/render.go | renderImage | func renderImage(renderedACI acirenderer.RenderedACI, dir string, ap acirenderer.ACIProvider, uidRange *user.UidRange) error {
for _, ra := range renderedACI {
rs, err := ap.ReadStream(ra.Key)
if err != nil {
return err
}
// Overwrite is not needed. If a file needs to be overwritten then the renderedACI builder has a bug
if err := ptar.ExtractTar(rs, dir, false, uidRange, ra.FileMap); err != nil {
rs.Close()
return errwrap.Wrap(errors.New("error extracting ACI"), err)
}
rs.Close()
}
return nil
} | go | func renderImage(renderedACI acirenderer.RenderedACI, dir string, ap acirenderer.ACIProvider, uidRange *user.UidRange) error {
for _, ra := range renderedACI {
rs, err := ap.ReadStream(ra.Key)
if err != nil {
return err
}
// Overwrite is not needed. If a file needs to be overwritten then the renderedACI builder has a bug
if err := ptar.ExtractTar(rs, dir, false, uidRange, ra.FileMap); err != nil {
rs.Close()
return errwrap.Wrap(errors.New("error extracting ACI"), err)
}
rs.Close()
}
return nil
} | [
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] | // Given a RenderedACI, it will extract, under the provided directory, the
// needed files from the right source ACI.
// The manifest will be extracted from the upper ACI.
// No file overwriting is done as it should usually be called
// providing an empty directory. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/aci/render.go#L64-L80 |
167,151 | rkt/rkt | rkt/image/httpfetcher.go | Hash | func (f *httpFetcher) Hash(u *url.URL, a *asc) (string, error) {
ensureLogger(f.Debug)
urlStr := u.String()
if !f.NoCache && f.Rem != nil {
if useCached(f.Rem.DownloadTime, f.Rem.CacheMaxAge) {
diag.Printf("image for %s isn't expired, not fetching.", urlStr)
return f.Rem.BlobKey, nil
}
}
diag.Printf("fetching image from %s", urlStr)
aciFile, cd, err := f.fetchURL(u, a, eTag(f.Rem))
if err != nil {
return "", err
}
defer aciFile.Close()
if key := maybeUseCached(f.Rem, cd); key != "" {
// TODO(krnowak): that does not update the store with
// the new CacheMaxAge and Download Time, so it will
// query the server every time after initial
// CacheMaxAge is exceeded
return key, nil
}
key, err := f.S.WriteACI(aciFile, imagestore.ACIFetchInfo{
Latest: false,
})
if err != nil {
return "", err
}
// TODO(krnowak): What's the point of the second parameter?
// The SigURL field in imagestore.Remote seems to be completely
// unused.
newRem := imagestore.NewRemote(urlStr, a.Location)
newRem.BlobKey = key
newRem.DownloadTime = time.Now()
if cd != nil {
newRem.ETag = cd.ETag
newRem.CacheMaxAge = cd.MaxAge
}
err = f.S.WriteRemote(newRem)
if err != nil {
return "", err
}
return key, nil
} | go | func (f *httpFetcher) Hash(u *url.URL, a *asc) (string, error) {
ensureLogger(f.Debug)
urlStr := u.String()
if !f.NoCache && f.Rem != nil {
if useCached(f.Rem.DownloadTime, f.Rem.CacheMaxAge) {
diag.Printf("image for %s isn't expired, not fetching.", urlStr)
return f.Rem.BlobKey, nil
}
}
diag.Printf("fetching image from %s", urlStr)
aciFile, cd, err := f.fetchURL(u, a, eTag(f.Rem))
if err != nil {
return "", err
}
defer aciFile.Close()
if key := maybeUseCached(f.Rem, cd); key != "" {
// TODO(krnowak): that does not update the store with
// the new CacheMaxAge and Download Time, so it will
// query the server every time after initial
// CacheMaxAge is exceeded
return key, nil
}
key, err := f.S.WriteACI(aciFile, imagestore.ACIFetchInfo{
Latest: false,
})
if err != nil {
return "", err
}
// TODO(krnowak): What's the point of the second parameter?
// The SigURL field in imagestore.Remote seems to be completely
// unused.
newRem := imagestore.NewRemote(urlStr, a.Location)
newRem.BlobKey = key
newRem.DownloadTime = time.Now()
if cd != nil {
newRem.ETag = cd.ETag
newRem.CacheMaxAge = cd.MaxAge
}
err = f.S.WriteRemote(newRem)
if err != nil {
return "", err
}
return key, nil
} | [
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] | // Hash fetches the URL, optionally verifies it against passed asc,
// stores it in the store and returns the hash. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/rkt/image/httpfetcher.go#L44-L93 |
167,152 | rkt/rkt | stage1/app_add/app_add.go | addMountsStage0 | func addMountsStage0(p *stage1types.Pod, ra *schema.RuntimeApp, enterCmd []string) error {
sharedVolPath, err := common.CreateSharedVolumesPath(p.Root)
if err != nil {
return err
}
vols := make(map[types.ACName]types.Volume)
for _, v := range p.Manifest.Volumes {
vols[v.Name] = v
}
imageManifest := p.Images[ra.Name.String()]
mounts, err := stage1init.GenerateMounts(ra, p.Manifest.Volumes, stage1init.ConvertedFromDocker(imageManifest))
if err != nil {
return errwrap.Wrapf("could not generate mounts", err)
}
absRoot, err := filepath.Abs(p.Root)
if err != nil {
return errwrap.Wrapf("could not determine pod's absolute path", err)
}
appRootfs := common.AppRootfsPath(absRoot, ra.Name)
// This logic is mostly copied from appToNspawnArgs
// TODO(cdc): deduplicate
for _, m := range mounts {
shPath := filepath.Join(sharedVolPath, m.Volume.Name.String())
// Evaluate symlinks within the app's rootfs - otherwise absolute
// symlinks will be wrong.
mntPath, err := stage1init.EvaluateSymlinksInsideApp(appRootfs, m.Mount.Path)
if err != nil {
return errwrap.Wrap(fmt.Errorf("could not evaluate path %v", m.Mount.Path), err)
}
// Create the stage1 destination
if err := stage1init.PrepareMountpoints(shPath, filepath.Join(appRootfs, mntPath), &m.Volume, m.DockerImplicit); err != nil {
return errwrap.Wrapf("could not prepare mountpoint", err)
}
err = addMountStage0(p, ra, &m, mntPath, enterCmd)
if err != nil {
return errwrap.Wrap(fmt.Errorf("error adding mount volume %v path %v", m.Mount.Volume, m.Mount.Path), err)
}
}
return nil
} | go | func addMountsStage0(p *stage1types.Pod, ra *schema.RuntimeApp, enterCmd []string) error {
sharedVolPath, err := common.CreateSharedVolumesPath(p.Root)
if err != nil {
return err
}
vols := make(map[types.ACName]types.Volume)
for _, v := range p.Manifest.Volumes {
vols[v.Name] = v
}
imageManifest := p.Images[ra.Name.String()]
mounts, err := stage1init.GenerateMounts(ra, p.Manifest.Volumes, stage1init.ConvertedFromDocker(imageManifest))
if err != nil {
return errwrap.Wrapf("could not generate mounts", err)
}
absRoot, err := filepath.Abs(p.Root)
if err != nil {
return errwrap.Wrapf("could not determine pod's absolute path", err)
}
appRootfs := common.AppRootfsPath(absRoot, ra.Name)
// This logic is mostly copied from appToNspawnArgs
// TODO(cdc): deduplicate
for _, m := range mounts {
shPath := filepath.Join(sharedVolPath, m.Volume.Name.String())
// Evaluate symlinks within the app's rootfs - otherwise absolute
// symlinks will be wrong.
mntPath, err := stage1init.EvaluateSymlinksInsideApp(appRootfs, m.Mount.Path)
if err != nil {
return errwrap.Wrap(fmt.Errorf("could not evaluate path %v", m.Mount.Path), err)
}
// Create the stage1 destination
if err := stage1init.PrepareMountpoints(shPath, filepath.Join(appRootfs, mntPath), &m.Volume, m.DockerImplicit); err != nil {
return errwrap.Wrapf("could not prepare mountpoint", err)
}
err = addMountStage0(p, ra, &m, mntPath, enterCmd)
if err != nil {
return errwrap.Wrap(fmt.Errorf("error adding mount volume %v path %v", m.Mount.Volume, m.Mount.Path), err)
}
}
return nil
} | [
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"}",
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] | // addMountStage0 iterates over all requested mounts and bind mounts them to the stage2 rootfs. | [
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"iterates",
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"requested",
"mounts",
"and",
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"."
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/app_add/app_add.go#L163-L211 |
167,153 | rkt/rkt | stage1/app_add/app_add.go | Cleanup | func (p *playground) Cleanup() error {
if err := os.Remove(p.playground); err != nil {
return err
}
if err := p.mnt.Unmount(p.tmpDir, 0); err != nil {
return err
}
return os.Remove(p.tmpDir)
} | go | func (p *playground) Cleanup() error {
if err := os.Remove(p.playground); err != nil {
return err
}
if err := p.mnt.Unmount(p.tmpDir, 0); err != nil {
return err
}
return os.Remove(p.tmpDir)
} | [
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] | // Cleanup cleans up the playground.
// It removes it, unmounts the parent directory, and removes the unmounted directory. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/app_add/app_add.go#L426-L436 |
167,154 | rkt/rkt | pkg/user/util.go | ShiftFiles | func ShiftFiles(filesToShift []string, uidRange *UidRange) error {
if uidRange.Shift != 0 && uidRange.Count != 0 {
for _, f := range filesToShift {
if err := os.Chown(f, int(uidRange.Shift), int(uidRange.Shift)); err != nil {
return err
}
}
}
return nil
} | go | func ShiftFiles(filesToShift []string, uidRange *UidRange) error {
if uidRange.Shift != 0 && uidRange.Count != 0 {
for _, f := range filesToShift {
if err := os.Chown(f, int(uidRange.Shift), int(uidRange.Shift)); err != nil {
return err
}
}
}
return nil
} | [
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"uidRange"
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/user/util.go#L20-L29 |
167,155 | rkt/rkt | rkt/image/namefetcher.go | Hash | func (f *nameFetcher) Hash(app *discovery.App, a *asc) (string, error) {
ensureLogger(f.Debug)
name := app.Name.String()
diag.Printf("searching for app image %s", name)
ep, err := f.discoverApp(app)
if err != nil {
return "", errwrap.Wrap(fmt.Errorf("discovery failed for %q", name), err)
}
latest := false
// No specified version label, mark it as latest
if _, ok := app.Labels["version"]; !ok {
latest = true
}
return f.fetchImageFromEndpoints(app, ep, a, latest)
} | go | func (f *nameFetcher) Hash(app *discovery.App, a *asc) (string, error) {
ensureLogger(f.Debug)
name := app.Name.String()
diag.Printf("searching for app image %s", name)
ep, err := f.discoverApp(app)
if err != nil {
return "", errwrap.Wrap(fmt.Errorf("discovery failed for %q", name), err)
}
latest := false
// No specified version label, mark it as latest
if _, ok := app.Labels["version"]; !ok {
latest = true
}
return f.fetchImageFromEndpoints(app, ep, a, latest)
} | [
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] | // Hash runs the discovery, fetches the image, optionally verifies
// it against passed asc, stores it in the store and returns the hash. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/rkt/image/namefetcher.go#L50-L64 |
167,156 | rkt/rkt | common/overlay/overlay.go | Opts | func (cfg *MountCfg) Opts() string {
opts := fmt.Sprintf(
"lowerdir=%s,upperdir=%s,workdir=%s",
sanitize(cfg.Lower), sanitize(cfg.Upper), sanitize(cfg.Work),
)
return label.FormatMountLabel(opts, cfg.Lbl)
} | go | func (cfg *MountCfg) Opts() string {
opts := fmt.Sprintf(
"lowerdir=%s,upperdir=%s,workdir=%s",
sanitize(cfg.Lower), sanitize(cfg.Upper), sanitize(cfg.Work),
)
return label.FormatMountLabel(opts, cfg.Lbl)
} | [
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] | // Opts returns options for mount system call. | [
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"."
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/common/overlay/overlay.go#L50-L57 |
167,157 | rkt/rkt | common/overlay/overlay.go | Mount | func Mount(cfg *MountCfg) error {
err := syscall.Mount("overlay", cfg.Dest, "overlay", 0, cfg.Opts())
if err != nil {
const text = "error mounting overlay with options '%s' and dest '%s'"
return errwrap.Wrap(fmt.Errorf(text, cfg.Opts(), cfg.Dest), err)
}
return nil
} | go | func Mount(cfg *MountCfg) error {
err := syscall.Mount("overlay", cfg.Dest, "overlay", 0, cfg.Opts())
if err != nil {
const text = "error mounting overlay with options '%s' and dest '%s'"
return errwrap.Wrap(fmt.Errorf(text, cfg.Opts(), cfg.Dest), err)
}
return nil
} | [
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] | // Mount mounts the upper and lower directories to the destination directory.
// The MountCfg struct supplies information required to build the mount system
// call. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/common/overlay/overlay.go#L62-L70 |
167,158 | rkt/rkt | pkg/lock/file.go | TryExclusiveLock | func (l *FileLock) TryExclusiveLock() error {
err := syscall.Flock(l.fd, syscall.LOCK_EX|syscall.LOCK_NB)
if err == syscall.EWOULDBLOCK {
err = ErrLocked
}
return err
} | go | func (l *FileLock) TryExclusiveLock() error {
err := syscall.Flock(l.fd, syscall.LOCK_EX|syscall.LOCK_NB)
if err == syscall.EWOULDBLOCK {
err = ErrLocked
}
return err
} | [
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] | // TryExclusiveLock takes an exclusive lock without blocking.
// This is idempotent when the Lock already represents an exclusive lock,
// and tries promote a shared lock to exclusive atomically.
// It will return ErrLocked if any lock is already held. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/lock/file.go#L48-L54 |
167,159 | rkt/rkt | pkg/lock/file.go | ExclusiveLock | func (l *FileLock) ExclusiveLock() error {
return syscall.Flock(l.fd, syscall.LOCK_EX)
} | go | func (l *FileLock) ExclusiveLock() error {
return syscall.Flock(l.fd, syscall.LOCK_EX)
} | [
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] | // ExclusiveLock takes an exclusive lock.
// This is idempotent when the Lock already represents an exclusive lock,
// and promotes a shared lock to exclusive atomically.
// It will block if an exclusive lock is already held. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/lock/file.go#L74-L76 |
167,160 | rkt/rkt | pkg/lock/file.go | Unlock | func (l *FileLock) Unlock() error {
return syscall.Flock(l.fd, syscall.LOCK_UN)
} | go | func (l *FileLock) Unlock() error {
return syscall.Flock(l.fd, syscall.LOCK_UN)
} | [
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] | // Unlock unlocks the lock | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/lock/file.go#L140-L142 |
167,161 | rkt/rkt | pkg/lock/file.go | Fd | func (l *FileLock) Fd() (int, error) {
var err error
if l.fd == -1 {
err = errors.New("lock closed")
}
return l.fd, err
} | go | func (l *FileLock) Fd() (int, error) {
var err error
if l.fd == -1 {
err = errors.New("lock closed")
}
return l.fd, err
} | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/lock/file.go#L145-L151 |
167,162 | rkt/rkt | pkg/lock/file.go | Close | func (l *FileLock) Close() error {
fd := l.fd
l.fd = -1
return syscall.Close(fd)
} | go | func (l *FileLock) Close() error {
fd := l.fd
l.fd = -1
return syscall.Close(fd)
} | [
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] | // Close closes the lock which implicitly unlocks it as well | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/lock/file.go#L154-L158 |
167,163 | rkt/rkt | pkg/lock/file.go | NewLock | func NewLock(path string, lockType LockType) (*FileLock, error) {
l := &FileLock{path: path, fd: -1}
mode := syscall.O_RDONLY | syscall.O_CLOEXEC
if lockType == Dir {
mode |= syscall.O_DIRECTORY
}
lfd, err := syscall.Open(l.path, mode, 0)
if err != nil {
if err == syscall.ENOENT {
err = ErrNotExist
} else if err == syscall.EACCES {
err = ErrPermission
}
return nil, err
}
l.fd = lfd
var stat syscall.Stat_t
err = syscall.Fstat(lfd, &stat)
if err != nil {
return nil, err
}
// Check if the file is a regular file
if lockType == RegFile && !(stat.Mode&syscall.S_IFMT == syscall.S_IFREG) {
return nil, ErrNotRegular
}
return l, nil
} | go | func NewLock(path string, lockType LockType) (*FileLock, error) {
l := &FileLock{path: path, fd: -1}
mode := syscall.O_RDONLY | syscall.O_CLOEXEC
if lockType == Dir {
mode |= syscall.O_DIRECTORY
}
lfd, err := syscall.Open(l.path, mode, 0)
if err != nil {
if err == syscall.ENOENT {
err = ErrNotExist
} else if err == syscall.EACCES {
err = ErrPermission
}
return nil, err
}
l.fd = lfd
var stat syscall.Stat_t
err = syscall.Fstat(lfd, &stat)
if err != nil {
return nil, err
}
// Check if the file is a regular file
if lockType == RegFile && !(stat.Mode&syscall.S_IFMT == syscall.S_IFREG) {
return nil, ErrNotRegular
}
return l, nil
} | [
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] | // NewLock opens a new lock on a file without acquisition | [
"NewLock",
"opens",
"a",
"new",
"lock",
"on",
"a",
"file",
"without",
"acquisition"
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/lock/file.go#L161-L190 |
167,164 | rkt/rkt | tools/depsgen/gocmd.go | goGetArgs | func goGetArgs(args []string) (string, string, string, goDepsMode) {
f, target := standardFlags(goCmd)
repo := f.String("repo", "", "Go repo (example: github.com/rkt/rkt)")
module := f.String("module", "", "Module inside Go repo (example: stage1)")
mode := f.String("mode", "make", "Mode to use (make - print deps as makefile [default], files - print a list of files)")
f.Parse(args)
if *repo == "" {
common.Die("--repo parameter must be specified and cannot be empty")
}
if *module == "" {
common.Die("--module parameter must be specified and cannot be empty")
}
var dMode goDepsMode
switch *mode {
case "make":
dMode = goMakeMode
if *target == "" {
common.Die("--target parameter must be specified and cannot be empty when using 'make' mode")
}
case "files":
dMode = goFilesMode
default:
common.Die("unknown --mode parameter %q - expected either 'make' or 'files'", *mode)
}
return *target, *repo, *module, dMode
} | go | func goGetArgs(args []string) (string, string, string, goDepsMode) {
f, target := standardFlags(goCmd)
repo := f.String("repo", "", "Go repo (example: github.com/rkt/rkt)")
module := f.String("module", "", "Module inside Go repo (example: stage1)")
mode := f.String("mode", "make", "Mode to use (make - print deps as makefile [default], files - print a list of files)")
f.Parse(args)
if *repo == "" {
common.Die("--repo parameter must be specified and cannot be empty")
}
if *module == "" {
common.Die("--module parameter must be specified and cannot be empty")
}
var dMode goDepsMode
switch *mode {
case "make":
dMode = goMakeMode
if *target == "" {
common.Die("--target parameter must be specified and cannot be empty when using 'make' mode")
}
case "files":
dMode = goFilesMode
default:
common.Die("unknown --mode parameter %q - expected either 'make' or 'files'", *mode)
}
return *target, *repo, *module, dMode
} | [
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"*",
"module",
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"dMode",
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"}"
] | // getArgs parses given parameters and returns target, repo, module and
// mode. If mode is "files", then target is optional. | [
"getArgs",
"parses",
"given",
"parameters",
"and",
"returns",
"target",
"repo",
"module",
"and",
"mode",
".",
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"mode",
"is",
"files",
"then",
"target",
"is",
"optional",
"."
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/tools/depsgen/gocmd.go#L69-L97 |
167,165 | rkt/rkt | tools/depsgen/gocmd.go | goGetPackageDeps | func goGetPackageDeps(repo, module string) []string {
dir, deps := goGetDeps(repo, module)
return goGetFiles(dir, deps)
} | go | func goGetPackageDeps(repo, module string) []string {
dir, deps := goGetDeps(repo, module)
return goGetFiles(dir, deps)
} | [
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] | // goGetPackageDeps returns a list of files that are used to build a
// module in a given repo. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/tools/depsgen/gocmd.go#L101-L104 |
167,166 | rkt/rkt | tools/depsgen/gocmd.go | goGetDeps | func goGetDeps(repo, module string) (string, []string) {
pkg := path.Join(repo, module)
rawTuples := goRun(goList([]string{"Dir", "Deps"}, []string{pkg}))
if len(rawTuples) != 1 {
common.Die("Expected to get only one line from go list for a single package")
}
tuple := goSliceRawTuple(rawTuples[0])
dir := tuple[0]
if module != "." {
dirsToStrip := 1 + strings.Count(module, "/")
for i := 0; i < dirsToStrip; i++ {
dir = filepath.Dir(dir)
}
}
dir = filepath.Clean(dir)
deps := goSliceRawSlice(tuple[1])
return dir, append([]string{pkg}, deps...)
} | go | func goGetDeps(repo, module string) (string, []string) {
pkg := path.Join(repo, module)
rawTuples := goRun(goList([]string{"Dir", "Deps"}, []string{pkg}))
if len(rawTuples) != 1 {
common.Die("Expected to get only one line from go list for a single package")
}
tuple := goSliceRawTuple(rawTuples[0])
dir := tuple[0]
if module != "." {
dirsToStrip := 1 + strings.Count(module, "/")
for i := 0; i < dirsToStrip; i++ {
dir = filepath.Dir(dir)
}
}
dir = filepath.Clean(dir)
deps := goSliceRawSlice(tuple[1])
return dir, append([]string{pkg}, deps...)
} | [
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] | // goGetDeps gets the directory of a given repo and the all
// dependencies, direct or indirect, of a given module in the repo. | [
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"the",
"directory",
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/tools/depsgen/gocmd.go#L108-L125 |
167,167 | rkt/rkt | tools/depsgen/gocmd.go | goGetFiles | func goGetFiles(dir string, pkgs []string) []string {
params := []string{
"Dir",
"GoFiles",
"CgoFiles",
}
var allFiles []string
rawTuples := goRun(goList(params, pkgs))
for _, raw := range rawTuples {
tuple := goSliceRawTuple(raw)
moduleDir := filepath.Clean(tuple[0])
dirSep := fmt.Sprintf("%s%c", dir, filepath.Separator)
moduleDirSep := fmt.Sprintf("%s%c", moduleDir, filepath.Separator)
if !strings.HasPrefix(moduleDirSep, dirSep) {
continue
}
relModuleDir, err := filepath.Rel(dir, moduleDir)
if err != nil {
common.Die("Could not make a relative path from %q to %q, even if they have the same prefix", moduleDir, dir)
}
files := append(goSliceRawSlice(tuple[1]), goSliceRawSlice(tuple[2])...)
for i := 0; i < len(files); i++ {
files[i] = filepath.Join(relModuleDir, files[i])
}
allFiles = append(allFiles, files...)
}
return allFiles
} | go | func goGetFiles(dir string, pkgs []string) []string {
params := []string{
"Dir",
"GoFiles",
"CgoFiles",
}
var allFiles []string
rawTuples := goRun(goList(params, pkgs))
for _, raw := range rawTuples {
tuple := goSliceRawTuple(raw)
moduleDir := filepath.Clean(tuple[0])
dirSep := fmt.Sprintf("%s%c", dir, filepath.Separator)
moduleDirSep := fmt.Sprintf("%s%c", moduleDir, filepath.Separator)
if !strings.HasPrefix(moduleDirSep, dirSep) {
continue
}
relModuleDir, err := filepath.Rel(dir, moduleDir)
if err != nil {
common.Die("Could not make a relative path from %q to %q, even if they have the same prefix", moduleDir, dir)
}
files := append(goSliceRawSlice(tuple[1]), goSliceRawSlice(tuple[2])...)
for i := 0; i < len(files); i++ {
files[i] = filepath.Join(relModuleDir, files[i])
}
allFiles = append(allFiles, files...)
}
return allFiles
} | [
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] | // goGetFiles returns a list of files that are in given packages. File
// paths are relative to a given directory. | [
"goGetFiles",
"returns",
"a",
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/tools/depsgen/gocmd.go#L129-L156 |
167,168 | rkt/rkt | tools/depsgen/gocmd.go | goRun | func goRun(argv []string) []string {
cmd := exec.Command(argv[0], argv[1:]...)
stdout := new(bytes.Buffer)
stderr := new(bytes.Buffer)
cmd.Stdout = stdout
cmd.Stderr = stderr
if err := cmd.Run(); err != nil {
common.Die("Error running %s: %v: %s", strings.Join(argv, " "), err, stderr.String())
}
rawLines := strings.Split(stdout.String(), "\n")
lines := make([]string, 0, len(rawLines))
for _, line := range rawLines {
if trimmed := strings.TrimSpace(line); trimmed != "" {
lines = append(lines, trimmed)
}
}
return lines
} | go | func goRun(argv []string) []string {
cmd := exec.Command(argv[0], argv[1:]...)
stdout := new(bytes.Buffer)
stderr := new(bytes.Buffer)
cmd.Stdout = stdout
cmd.Stderr = stderr
if err := cmd.Run(); err != nil {
common.Die("Error running %s: %v: %s", strings.Join(argv, " "), err, stderr.String())
}
rawLines := strings.Split(stdout.String(), "\n")
lines := make([]string, 0, len(rawLines))
for _, line := range rawLines {
if trimmed := strings.TrimSpace(line); trimmed != "" {
lines = append(lines, trimmed)
}
}
return lines
} | [
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] | // goRun executes given argument list and captures its output. The
// output is sliced into lines with empty lines being discarded. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/tools/depsgen/gocmd.go#L175-L192 |
167,169 | rkt/rkt | tools/depsgen/gocmd.go | goSliceRawSlice | func goSliceRawSlice(s string) []string {
s = strings.TrimPrefix(s, "[")
s = strings.TrimSuffix(s, "]")
s = strings.TrimSpace(s)
if s == "" {
return nil
}
a := strings.Split(s, " ")
return a
} | go | func goSliceRawSlice(s string) []string {
s = strings.TrimPrefix(s, "[")
s = strings.TrimSuffix(s, "]")
s = strings.TrimSpace(s)
if s == "" {
return nil
}
a := strings.Split(s, " ")
return a
} | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/tools/depsgen/gocmd.go#L196-L205 |
167,170 | rkt/rkt | stage1/init/common/mount.go | ConvertedFromDocker | func ConvertedFromDocker(im *schema.ImageManifest) bool {
if im == nil { // nil sometimes sneaks in here due to unit tests
return false
}
ann := im.Annotations
_, ok := ann.Get("appc.io/docker/repository")
return ok
} | go | func ConvertedFromDocker(im *schema.ImageManifest) bool {
if im == nil { // nil sometimes sneaks in here due to unit tests
return false
}
ann := im.Annotations
_, ok := ann.Get("appc.io/docker/repository")
return ok
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] | // ConvertedFromDocker determines if an app's image has been converted
// from docker. This is needed because implicit docker empty volumes have
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167,171 | rkt/rkt | stage1/init/common/mount.go | Source | func (m *Mount) Source(podRoot string) string {
switch m.Volume.Kind {
case "host":
return m.Volume.Source
case "empty":
return filepath.Join(common.SharedVolumesPath(podRoot), m.Volume.Name.String())
}
return "" // We validate in GenerateMounts that it's valid
} | go | func (m *Mount) Source(podRoot string) string {
switch m.Volume.Kind {
case "host":
return m.Volume.Source
case "empty":
return filepath.Join(common.SharedVolumesPath(podRoot), m.Volume.Name.String())
}
return "" // We validate in GenerateMounts that it's valid
} | [
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167,172 | rkt/rkt | stage1/init/common/mount.go | GenerateMounts | func GenerateMounts(ra *schema.RuntimeApp, podVolumes []types.Volume, convertedFromDocker bool) ([]Mount, error) {
app := ra.App
var genMnts []Mount
vols := make(map[types.ACName]types.Volume)
for _, v := range podVolumes {
vols[v.Name] = v
}
// RuntimeApps have mounts, whereas Apps have mountPoints. mountPoints are partially for
// Docker compat; since apps can declare mountpoints. However, if we just run with rkt run,
// then we'll only have a Mount and no corresponding MountPoint.
// Furthermore, Mounts can have embedded volumes in the case of the CRI.
// So, we generate a pile of Mounts and their corresponding Volume
// Map of hostpath -> Mount
mnts := make(map[string]schema.Mount)
// Check runtimeApp's Mounts
for _, m := range ra.Mounts {
mnts[m.Path] = m
vol := m.AppVolume // Mounts can supply a volume
if vol == nil {
vv, ok := vols[m.Volume]
if !ok {
return nil, fmt.Errorf("could not find volume %s", m.Volume)
}
vol = &vv
}
// Find a corresponding MountPoint, which is optional
ro := false
for _, mp := range ra.App.MountPoints {
if mp.Name == m.Volume {
ro = mp.ReadOnly
break
}
}
if vol.ReadOnly != nil {
ro = *vol.ReadOnly
}
switch vol.Kind {
case "host":
case "empty":
default:
return nil, fmt.Errorf("Volume %s has invalid kind %s", vol.Name, vol.Kind)
}
genMnts = append(genMnts,
Mount{
Mount: m,
DockerImplicit: false,
ReadOnly: ro,
Volume: *vol,
})
}
// Now, match up MountPoints with Mounts or Volumes
// If there's no Mount and no Volume, generate an empty volume
for _, mp := range app.MountPoints {
// there's already a Mount for this MountPoint, stop
if _, ok := mnts[mp.Path]; ok {
continue
}
// No Mount, try to match based on volume name
vol, ok := vols[mp.Name]
// there is no volume for this mount point, creating an "empty" volume
// implicitly
if !ok {
defaultMode := "0755"
defaultUID := 0
defaultGID := 0
uniqName := ra.Name + "-" + mp.Name
emptyVol := types.Volume{
Name: uniqName,
Kind: "empty",
Mode: &defaultMode,
UID: &defaultUID,
GID: &defaultGID,
}
log.Printf("warning: no volume specified for mount point %q, implicitly creating an \"empty\" volume. This volume will be removed when the pod is garbage-collected.", mp.Name)
if convertedFromDocker {
log.Printf("Docker converted image, initializing implicit volume with data contained at the mount point %q.", mp.Name)
}
vols[uniqName] = emptyVol
genMnts = append(genMnts,
Mount{
Mount: schema.Mount{
Volume: uniqName,
Path: mp.Path,
},
Volume: emptyVol,
ReadOnly: mp.ReadOnly,
DockerImplicit: convertedFromDocker,
})
} else {
ro := mp.ReadOnly
if vol.ReadOnly != nil {
ro = *vol.ReadOnly
}
genMnts = append(genMnts,
Mount{
Mount: schema.Mount{
Volume: vol.Name,
Path: mp.Path,
},
Volume: vol,
ReadOnly: ro,
DockerImplicit: false,
})
}
}
return genMnts, nil
} | go | func GenerateMounts(ra *schema.RuntimeApp, podVolumes []types.Volume, convertedFromDocker bool) ([]Mount, error) {
app := ra.App
var genMnts []Mount
vols := make(map[types.ACName]types.Volume)
for _, v := range podVolumes {
vols[v.Name] = v
}
// RuntimeApps have mounts, whereas Apps have mountPoints. mountPoints are partially for
// Docker compat; since apps can declare mountpoints. However, if we just run with rkt run,
// then we'll only have a Mount and no corresponding MountPoint.
// Furthermore, Mounts can have embedded volumes in the case of the CRI.
// So, we generate a pile of Mounts and their corresponding Volume
// Map of hostpath -> Mount
mnts := make(map[string]schema.Mount)
// Check runtimeApp's Mounts
for _, m := range ra.Mounts {
mnts[m.Path] = m
vol := m.AppVolume // Mounts can supply a volume
if vol == nil {
vv, ok := vols[m.Volume]
if !ok {
return nil, fmt.Errorf("could not find volume %s", m.Volume)
}
vol = &vv
}
// Find a corresponding MountPoint, which is optional
ro := false
for _, mp := range ra.App.MountPoints {
if mp.Name == m.Volume {
ro = mp.ReadOnly
break
}
}
if vol.ReadOnly != nil {
ro = *vol.ReadOnly
}
switch vol.Kind {
case "host":
case "empty":
default:
return nil, fmt.Errorf("Volume %s has invalid kind %s", vol.Name, vol.Kind)
}
genMnts = append(genMnts,
Mount{
Mount: m,
DockerImplicit: false,
ReadOnly: ro,
Volume: *vol,
})
}
// Now, match up MountPoints with Mounts or Volumes
// If there's no Mount and no Volume, generate an empty volume
for _, mp := range app.MountPoints {
// there's already a Mount for this MountPoint, stop
if _, ok := mnts[mp.Path]; ok {
continue
}
// No Mount, try to match based on volume name
vol, ok := vols[mp.Name]
// there is no volume for this mount point, creating an "empty" volume
// implicitly
if !ok {
defaultMode := "0755"
defaultUID := 0
defaultGID := 0
uniqName := ra.Name + "-" + mp.Name
emptyVol := types.Volume{
Name: uniqName,
Kind: "empty",
Mode: &defaultMode,
UID: &defaultUID,
GID: &defaultGID,
}
log.Printf("warning: no volume specified for mount point %q, implicitly creating an \"empty\" volume. This volume will be removed when the pod is garbage-collected.", mp.Name)
if convertedFromDocker {
log.Printf("Docker converted image, initializing implicit volume with data contained at the mount point %q.", mp.Name)
}
vols[uniqName] = emptyVol
genMnts = append(genMnts,
Mount{
Mount: schema.Mount{
Volume: uniqName,
Path: mp.Path,
},
Volume: emptyVol,
ReadOnly: mp.ReadOnly,
DockerImplicit: convertedFromDocker,
})
} else {
ro := mp.ReadOnly
if vol.ReadOnly != nil {
ro = *vol.ReadOnly
}
genMnts = append(genMnts,
Mount{
Mount: schema.Mount{
Volume: vol.Name,
Path: mp.Path,
},
Volume: vol,
ReadOnly: ro,
DockerImplicit: false,
})
}
}
return genMnts, nil
} | [
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// each with a parameter indicating if it's an implicit empty volume from a
// Docker image. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/common/mount.go#L77-L196 |
167,173 | rkt/rkt | stage1/init/common/mount.go | EnsureTargetExists | func EnsureTargetExists(source, destination string) error {
fileInfo, err := os.Stat(source)
if err != nil {
return errwrap.Wrap(fmt.Errorf("could not stat source location: %v", source), err)
}
targetPathParent, _ := filepath.Split(destination)
if err := os.MkdirAll(targetPathParent, common.SharedVolumePerm); err != nil {
return errwrap.Wrap(fmt.Errorf("could not create parent directory: %v", targetPathParent), err)
}
if fileInfo.IsDir() {
if err := os.Mkdir(destination, common.SharedVolumePerm); err != nil && !os.IsExist(err) {
return errwrap.Wrap(errors.New("could not create destination directory "+destination), err)
}
} else {
if file, err := os.OpenFile(destination, os.O_CREATE, common.SharedVolumePerm); err != nil {
return errwrap.Wrap(errors.New("could not create destination file"), err)
} else {
file.Close()
}
}
return nil
} | go | func EnsureTargetExists(source, destination string) error {
fileInfo, err := os.Stat(source)
if err != nil {
return errwrap.Wrap(fmt.Errorf("could not stat source location: %v", source), err)
}
targetPathParent, _ := filepath.Split(destination)
if err := os.MkdirAll(targetPathParent, common.SharedVolumePerm); err != nil {
return errwrap.Wrap(fmt.Errorf("could not create parent directory: %v", targetPathParent), err)
}
if fileInfo.IsDir() {
if err := os.Mkdir(destination, common.SharedVolumePerm); err != nil && !os.IsExist(err) {
return errwrap.Wrap(errors.New("could not create destination directory "+destination), err)
}
} else {
if file, err := os.OpenFile(destination, os.O_CREATE, common.SharedVolumePerm); err != nil {
return errwrap.Wrap(errors.New("could not create destination file"), err)
} else {
file.Close()
}
}
return nil
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] | // EnsureTargetExists will recursively create a given mountpoint. If directories
// are created, their permissions are initialized to common.SharedVolumePerm | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/common/mount.go#L274-L297 |
167,174 | rkt/rkt | rkt/image/httpops.go | DownloadSignature | func (o *httpOps) DownloadSignature(a *asc) (readSeekCloser, bool, error) {
ensureLogger(o.Debug)
diag.Printf("downloading signature from %v", a.Location)
ascFile, err := a.Get()
if err == nil {
return ascFile, false, nil
}
if _, ok := err.(*statusAcceptedError); ok {
log.Printf("server requested deferring the signature download")
return NopReadSeekCloser(nil), true, nil
}
return nil, false, errwrap.Wrap(errors.New("error downloading the signature file"), err)
} | go | func (o *httpOps) DownloadSignature(a *asc) (readSeekCloser, bool, error) {
ensureLogger(o.Debug)
diag.Printf("downloading signature from %v", a.Location)
ascFile, err := a.Get()
if err == nil {
return ascFile, false, nil
}
if _, ok := err.(*statusAcceptedError); ok {
log.Printf("server requested deferring the signature download")
return NopReadSeekCloser(nil), true, nil
}
return nil, false, errwrap.Wrap(errors.New("error downloading the signature file"), err)
} | [
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] | // DownloadSignature takes an asc instance and tries to get the
// signature. If the remote server asked to to defer the download,
// this function will return true and no error and no file. | [
"DownloadSignature",
"takes",
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/rkt/image/httpops.go#L43-L55 |
167,175 | rkt/rkt | rkt/image/httpops.go | DownloadSignatureAgain | func (o *httpOps) DownloadSignatureAgain(a *asc) (readSeekCloser, error) {
ensureLogger(o.Debug)
ascFile, retry, err := o.DownloadSignature(a)
if err != nil {
return nil, err
}
if retry {
return nil, fmt.Errorf("error downloading the signature file: server asked to defer the download again")
}
return ascFile, nil
} | go | func (o *httpOps) DownloadSignatureAgain(a *asc) (readSeekCloser, error) {
ensureLogger(o.Debug)
ascFile, retry, err := o.DownloadSignature(a)
if err != nil {
return nil, err
}
if retry {
return nil, fmt.Errorf("error downloading the signature file: server asked to defer the download again")
}
return ascFile, nil
} | [
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// but it expects the signature to be actually provided, that is - no
// deferring this time. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/rkt/image/httpops.go#L60-L70 |
167,176 | rkt/rkt | rkt/image/httpops.go | DownloadImage | func (o *httpOps) DownloadImage(u *url.URL) (readSeekCloser, *cacheData, error) {
ensureLogger(o.Debug)
image, cd, err := o.DownloadImageWithETag(u, "")
if err != nil {
return nil, nil, err
}
if cd.UseCached {
return nil, nil, fmt.Errorf("asked to use cached image even if not asked for that")
}
return image, cd, nil
} | go | func (o *httpOps) DownloadImage(u *url.URL) (readSeekCloser, *cacheData, error) {
ensureLogger(o.Debug)
image, cd, err := o.DownloadImageWithETag(u, "")
if err != nil {
return nil, nil, err
}
if cd.UseCached {
return nil, nil, fmt.Errorf("asked to use cached image even if not asked for that")
}
return image, cd, nil
} | [
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] | // DownloadImage download the image, duh. It expects to actually
// receive the file, instead of being asked to use the cached version. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/rkt/image/httpops.go#L74-L84 |
167,177 | rkt/rkt | rkt/image/httpops.go | DownloadImageWithETag | func (o *httpOps) DownloadImageWithETag(u *url.URL, etag string) (readSeekCloser, *cacheData, error) {
var aciFile *removeOnClose // closed on error
var errClose error // error signaling to close aciFile
ensureLogger(o.Debug)
aciFile, err := getTmpROC(o.S, u.String())
if err != nil {
return nil, nil, err
}
defer func() {
if errClose != nil {
aciFile.Close()
}
}()
session := o.getSession(u, aciFile.File, "ACI", etag)
dl := o.getDownloader(session)
errClose = dl.Download(u, aciFile.File)
if errClose != nil {
return nil, nil, errwrap.Wrap(errors.New("error downloading ACI"), errClose)
}
if session.Cd.UseCached {
aciFile.Close()
return NopReadSeekCloser(nil), session.Cd, nil
}
return aciFile, session.Cd, nil
} | go | func (o *httpOps) DownloadImageWithETag(u *url.URL, etag string) (readSeekCloser, *cacheData, error) {
var aciFile *removeOnClose // closed on error
var errClose error // error signaling to close aciFile
ensureLogger(o.Debug)
aciFile, err := getTmpROC(o.S, u.String())
if err != nil {
return nil, nil, err
}
defer func() {
if errClose != nil {
aciFile.Close()
}
}()
session := o.getSession(u, aciFile.File, "ACI", etag)
dl := o.getDownloader(session)
errClose = dl.Download(u, aciFile.File)
if errClose != nil {
return nil, nil, errwrap.Wrap(errors.New("error downloading ACI"), errClose)
}
if session.Cd.UseCached {
aciFile.Close()
return NopReadSeekCloser(nil), session.Cd, nil
}
return aciFile, session.Cd, nil
} | [
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] | // DownloadImageWithETag might download an image or tell you to use
// the cached image. In the latter case the returned file will be nil. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/rkt/image/httpops.go#L88-L117 |
167,178 | rkt/rkt | rkt/image/httpops.go | AscRemoteFetcher | func (o *httpOps) AscRemoteFetcher() *remoteAscFetcher {
ensureLogger(o.Debug)
f := func(u *url.URL, file *os.File) error {
switch u.Scheme {
case "http", "https":
default:
return fmt.Errorf("invalid signature location: expected %q scheme, got %q", "http(s)", u.Scheme)
}
session := o.getSession(u, file, "signature", "")
dl := o.getDownloader(session)
err := dl.Download(u, file)
if err != nil {
return err
}
if session.Cd.UseCached {
return fmt.Errorf("unexpected cache reuse request for signature %q", u.String())
}
return nil
}
return &remoteAscFetcher{
F: f,
S: o.S,
}
} | go | func (o *httpOps) AscRemoteFetcher() *remoteAscFetcher {
ensureLogger(o.Debug)
f := func(u *url.URL, file *os.File) error {
switch u.Scheme {
case "http", "https":
default:
return fmt.Errorf("invalid signature location: expected %q scheme, got %q", "http(s)", u.Scheme)
}
session := o.getSession(u, file, "signature", "")
dl := o.getDownloader(session)
err := dl.Download(u, file)
if err != nil {
return err
}
if session.Cd.UseCached {
return fmt.Errorf("unexpected cache reuse request for signature %q", u.String())
}
return nil
}
return &remoteAscFetcher{
F: f,
S: o.S,
}
} | [
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] | // AscRemoteFetcher provides a remoteAscFetcher for asc. | [
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"."
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/rkt/image/httpops.go#L120-L143 |
167,179 | rkt/rkt | stage1/iottymux/iottymux.go | actionAttach | func actionAttach(statusPath string, autoMode bool) error {
var endpoints Targets
dialTimeout := 15 * time.Second
// retrieve available endpoints
statusFile, err := os.OpenFile(statusPath, os.O_RDONLY, os.ModePerm)
if err != nil {
return err
}
err = json.NewDecoder(statusFile).Decode(&endpoints)
_ = statusFile.Close()
if err != nil {
return err
}
// retrieve custom attaching modes
customTargets := struct {
ttyIn bool
ttyOut bool
stdin bool
stdout bool
stderr bool
}{}
if !autoMode {
customTargets.ttyIn, _ = strconv.ParseBool(os.Getenv("STAGE2_ATTACH_TTYIN"))
customTargets.ttyOut, _ = strconv.ParseBool(os.Getenv("STAGE2_ATTACH_TTYOUT"))
customTargets.stdin, _ = strconv.ParseBool(os.Getenv("STAGE2_ATTACH_STDIN"))
customTargets.stdout, _ = strconv.ParseBool(os.Getenv("STAGE2_ATTACH_STDOUT"))
customTargets.stderr, _ = strconv.ParseBool(os.Getenv("STAGE2_ATTACH_STDERR"))
}
// Proxy I/O between this process and the iottymux service:
// - input (stdin, tty-in) copying routines can only be canceled by process killing (ie. user detaching)
// - output (stdout, stderr, tty-out) copying routines are canceled by errors when reading from remote service
c := make(chan error)
copyOut := func(w io.Writer, conn net.Conn) {
_, err := io.Copy(w, conn)
c <- err
}
for _, ep := range endpoints.Targets {
d := net.Dialer{Timeout: dialTimeout}
conn, err := d.Dial(ep.Domain, ep.Address)
if err != nil {
return err
}
defer conn.Close()
switch ep.Name {
case "stdin":
if autoMode || customTargets.stdin {
go io.Copy(conn, os.Stdin)
}
case "stdout":
if autoMode || customTargets.stdout {
go copyOut(os.Stdout, conn)
}
case "stderr":
if autoMode || customTargets.stderr {
go copyOut(os.Stderr, conn)
}
case "tty":
if autoMode || customTargets.ttyIn {
go io.Copy(conn, os.Stdin)
}
if autoMode || customTargets.ttyOut {
go copyOut(os.Stdout, conn)
} else {
go copyOut(ioutil.Discard, conn)
}
}
}
// as soon as one output copying routine fails, this unblocks and the whole process exits
return <-c
} | go | func actionAttach(statusPath string, autoMode bool) error {
var endpoints Targets
dialTimeout := 15 * time.Second
// retrieve available endpoints
statusFile, err := os.OpenFile(statusPath, os.O_RDONLY, os.ModePerm)
if err != nil {
return err
}
err = json.NewDecoder(statusFile).Decode(&endpoints)
_ = statusFile.Close()
if err != nil {
return err
}
// retrieve custom attaching modes
customTargets := struct {
ttyIn bool
ttyOut bool
stdin bool
stdout bool
stderr bool
}{}
if !autoMode {
customTargets.ttyIn, _ = strconv.ParseBool(os.Getenv("STAGE2_ATTACH_TTYIN"))
customTargets.ttyOut, _ = strconv.ParseBool(os.Getenv("STAGE2_ATTACH_TTYOUT"))
customTargets.stdin, _ = strconv.ParseBool(os.Getenv("STAGE2_ATTACH_STDIN"))
customTargets.stdout, _ = strconv.ParseBool(os.Getenv("STAGE2_ATTACH_STDOUT"))
customTargets.stderr, _ = strconv.ParseBool(os.Getenv("STAGE2_ATTACH_STDERR"))
}
// Proxy I/O between this process and the iottymux service:
// - input (stdin, tty-in) copying routines can only be canceled by process killing (ie. user detaching)
// - output (stdout, stderr, tty-out) copying routines are canceled by errors when reading from remote service
c := make(chan error)
copyOut := func(w io.Writer, conn net.Conn) {
_, err := io.Copy(w, conn)
c <- err
}
for _, ep := range endpoints.Targets {
d := net.Dialer{Timeout: dialTimeout}
conn, err := d.Dial(ep.Domain, ep.Address)
if err != nil {
return err
}
defer conn.Close()
switch ep.Name {
case "stdin":
if autoMode || customTargets.stdin {
go io.Copy(conn, os.Stdin)
}
case "stdout":
if autoMode || customTargets.stdout {
go copyOut(os.Stdout, conn)
}
case "stderr":
if autoMode || customTargets.stderr {
go copyOut(os.Stderr, conn)
}
case "tty":
if autoMode || customTargets.ttyIn {
go io.Copy(conn, os.Stdin)
}
if autoMode || customTargets.ttyOut {
go copyOut(os.Stdout, conn)
} else {
go copyOut(ioutil.Discard, conn)
}
}
}
// as soon as one output copying routine fails, this unblocks and the whole process exits
return <-c
} | [
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"}",
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"}",
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"}",
"\n",
"}",
"\n\n",
"// as soon as one output copying routine fails, this unblocks and the whole process exits",
"return",
"<-",
"c",
"\n",
"}"
] | // actionAttach handles the attach action, either in "automatic" or "custom endpoints" mode. | [
"actionAttach",
"handles",
"the",
"attach",
"action",
"either",
"in",
"automatic",
"or",
"custom",
"endpoints",
"mode",
"."
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/iottymux/iottymux.go#L137-L212 |
167,180 | rkt/rkt | stage1/iottymux/iottymux.go | dispatchSig | func dispatchSig(stop chan<- error) {
sigChan := make(chan os.Signal)
signal.Notify(
sigChan,
syscall.SIGTERM,
syscall.SIGHUP,
syscall.SIGINT,
)
go func() {
diag.Println("Waiting for signal")
sig := <-sigChan
diag.Printf("Received signal %v\n", sig)
close(stop)
}()
} | go | func dispatchSig(stop chan<- error) {
sigChan := make(chan os.Signal)
signal.Notify(
sigChan,
syscall.SIGTERM,
syscall.SIGHUP,
syscall.SIGINT,
)
go func() {
diag.Println("Waiting for signal")
sig := <-sigChan
diag.Printf("Received signal %v\n", sig)
close(stop)
}()
} | [
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"\n",
"}",
"(",
")",
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"}"
] | // dispatchSig launches a goroutine and closes the given stop channel
// when SIGTERM, SIGHUP, or SIGINT is received. | [
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"and",
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"."
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/iottymux/iottymux.go#L475-L490 |
167,181 | rkt/rkt | stage1/iottymux/iottymux.go | bufferLine | func bufferLine(src io.Reader, c chan<- []byte, ec chan<- error) {
rd := bufio.NewReader(src)
for {
lineOut, err := rd.ReadBytes('\n')
if len(lineOut) > 0 {
c <- lineOut
}
if err != nil {
ec <- err
}
}
} | go | func bufferLine(src io.Reader, c chan<- []byte, ec chan<- error) {
rd := bufio.NewReader(src)
for {
lineOut, err := rd.ReadBytes('\n')
if len(lineOut) > 0 {
c <- lineOut
}
if err != nil {
ec <- err
}
}
} | [
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"}",
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"}",
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"}"
] | // bufferLine buffers and queues a single line from a Reader to a multiplexer
// If reading from src fails, it hard-fails and propagates the error back. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/iottymux/iottymux.go#L494-L505 |
167,182 | rkt/rkt | stage1/iottymux/iottymux.go | acceptConn | func acceptConn(socket net.Listener, c chan<- net.Conn, stream string) {
for {
conn, err := socket.Accept()
if err == nil {
diag.Printf("Accepted new connection for %s\n", stream)
c <- conn
}
}
} | go | func acceptConn(socket net.Listener, c chan<- net.Conn, stream string) {
for {
conn, err := socket.Accept()
if err == nil {
diag.Printf("Accepted new connection for %s\n", stream)
c <- conn
}
}
} | [
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"}",
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] | // acceptConn accepts a single client and queues it for further proxying
// It is never canceled explicitly, as it is bound to the lifetime of the main process. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/iottymux/iottymux.go#L509-L517 |
167,183 | rkt/rkt | stage1/iottymux/iottymux.go | muxInput | func muxInput(clients <-chan net.Conn, stdin *os.File) {
for {
select {
case c := <-clients:
go bufferInput(c, stdin)
}
}
} | go | func muxInput(clients <-chan net.Conn, stdin *os.File) {
for {
select {
case c := <-clients:
go bufferInput(c, stdin)
}
}
} | [
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] | // muxInput accepts remote clients and multiplex input line from them | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/iottymux/iottymux.go#L558-L565 |
167,184 | rkt/rkt | stage1/iottymux/iottymux.go | bufferInput | func bufferInput(conn net.Conn, stdin *os.File) {
rd := bufio.NewReader(conn)
defer conn.Close()
for {
lineIn, err := rd.ReadBytes('\n')
if len(lineIn) == 0 && err != nil {
return
}
_, err = stdin.Write(lineIn)
if err != nil {
return
}
}
} | go | func bufferInput(conn net.Conn, stdin *os.File) {
rd := bufio.NewReader(conn)
defer conn.Close()
for {
lineIn, err := rd.ReadBytes('\n')
if len(lineIn) == 0 && err != nil {
return
}
_, err = stdin.Write(lineIn)
if err != nil {
return
}
}
} | [
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] | // bufferInput buffers and write a single line from a remote client to the local app | [
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"single",
"line",
"from",
"a",
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"client",
"to",
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/iottymux/iottymux.go#L568-L581 |
167,185 | rkt/rkt | stage1/iottymux/iottymux.go | muxOutput | func muxOutput(streamLabel string, lines chan []byte, clients <-chan net.Conn, targets <-chan io.WriteCloser) {
var logs []io.WriteCloser
var conns []io.WriteCloser
writeAndFilter := func(wc io.WriteCloser, line []byte) bool {
_, err := wc.Write(line)
if err != nil {
wc.Close()
}
return err != nil
}
logsWriteAndFilter := func(wc io.WriteCloser, line []byte) bool {
out := []byte(fmt.Sprintf("%s %s %s", time.Now().Format(time.RFC3339Nano), streamLabel, line))
return writeAndFilter(wc, out)
}
for {
select {
// an incoming output line to multiplex
// TODO(lucab): ordered non-blocking writes
case l := <-lines:
conns = filterTargets(conns, l, writeAndFilter)
logs = filterTargets(logs, l, logsWriteAndFilter)
// a new remote client
case c := <-clients:
conns = append(conns, c)
// a new local log target
case t := <-targets:
logs = append(logs, t)
}
}
} | go | func muxOutput(streamLabel string, lines chan []byte, clients <-chan net.Conn, targets <-chan io.WriteCloser) {
var logs []io.WriteCloser
var conns []io.WriteCloser
writeAndFilter := func(wc io.WriteCloser, line []byte) bool {
_, err := wc.Write(line)
if err != nil {
wc.Close()
}
return err != nil
}
logsWriteAndFilter := func(wc io.WriteCloser, line []byte) bool {
out := []byte(fmt.Sprintf("%s %s %s", time.Now().Format(time.RFC3339Nano), streamLabel, line))
return writeAndFilter(wc, out)
}
for {
select {
// an incoming output line to multiplex
// TODO(lucab): ordered non-blocking writes
case l := <-lines:
conns = filterTargets(conns, l, writeAndFilter)
logs = filterTargets(logs, l, logsWriteAndFilter)
// a new remote client
case c := <-clients:
conns = append(conns, c)
// a new local log target
case t := <-targets:
logs = append(logs, t)
}
}
} | [
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"}",
"\n\n",
"for",
"{",
"select",
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"// TODO(lucab): ordered non-blocking writes",
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"=",
"append",
"(",
"logs",
",",
"t",
")",
"\n",
"}",
"\n",
"}",
"\n",
"}"
] | // muxOutput receives remote clients and local log targets,
// multiplexing output lines to them | [
"muxOutput",
"receives",
"remote",
"clients",
"and",
"local",
"log",
"targets",
"multiplexing",
"output",
"lines",
"to",
"them"
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/iottymux/iottymux.go#L585-L619 |
167,186 | rkt/rkt | stage1/iottymux/iottymux.go | filterTargets | func filterTargets(
wcs []io.WriteCloser,
line []byte,
filter func(io.WriteCloser, []byte) bool,
) []io.WriteCloser {
var filteredTargets []io.WriteCloser
for _, c := range wcs {
if !filter(c, line) {
filteredTargets = append(filteredTargets, c)
}
}
return filteredTargets
} | go | func filterTargets(
wcs []io.WriteCloser,
line []byte,
filter func(io.WriteCloser, []byte) bool,
) []io.WriteCloser {
var filteredTargets []io.WriteCloser
for _, c := range wcs {
if !filter(c, line) {
filteredTargets = append(filteredTargets, c)
}
}
return filteredTargets
} | [
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"return",
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"\n",
"}"
] | // filterTargets passes line to each writer in wcs,
// filtering out single writers if filter returns true. | [
"filterTargets",
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/iottymux/iottymux.go#L623-L636 |
167,187 | rkt/rkt | pkg/keystore/keystore.go | New | func New(config *Config) *Keystore {
if config == nil {
config = defaultConfig
}
return &Keystore{config}
} | go | func New(config *Config) *Keystore {
if config == nil {
config = defaultConfig
}
return &Keystore{config}
} | [
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"New",
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"config",
"*",
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"\n",
"}",
"\n",
"return",
"&",
"Keystore",
"{",
"config",
"}",
"\n",
"}"
] | // New returns a new Keystore based on config. | [
"New",
"returns",
"a",
"new",
"Keystore",
"based",
"on",
"config",
"."
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/keystore/keystore.go#L50-L55 |
167,188 | rkt/rkt | pkg/keystore/keystore.go | CheckSignature | func CheckSignature(prefix string, signed, signature io.ReadSeeker) (*openpgp.Entity, error) {
ks := New(defaultConfig)
return checkSignature(ks, prefix, signed, signature)
} | go | func CheckSignature(prefix string, signed, signature io.ReadSeeker) (*openpgp.Entity, error) {
ks := New(defaultConfig)
return checkSignature(ks, prefix, signed, signature)
} | [
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"prefix",
",",
"signed",
",",
"signature",
")",
"\n",
"}"
] | // CheckSignature is a convenience method for creating a Keystore with a default
// configuration and invoking CheckSignature. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/keystore/keystore.go#L70-L73 |
167,189 | rkt/rkt | pkg/keystore/keystore.go | DeleteTrustedKeyPrefix | func (ks *Keystore) DeleteTrustedKeyPrefix(prefix, fingerprint string) error {
acidentifier, err := types.NewACIdentifier(prefix)
if err != nil {
return err
}
return os.Remove(path.Join(ks.LocalPrefixPath, acidentifier.String(), fingerprint))
} | go | func (ks *Keystore) DeleteTrustedKeyPrefix(prefix, fingerprint string) error {
acidentifier, err := types.NewACIdentifier(prefix)
if err != nil {
return err
}
return os.Remove(path.Join(ks.LocalPrefixPath, acidentifier.String(), fingerprint))
} | [
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] | // DeleteTrustedKeyPrefix deletes the prefix trusted key identified by fingerprint. | [
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"deletes",
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"identified",
"by",
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/keystore/keystore.go#L111-L117 |
167,190 | rkt/rkt | pkg/keystore/keystore.go | MaskTrustedKeySystemPrefix | func (ks *Keystore) MaskTrustedKeySystemPrefix(prefix, fingerprint string) (string, error) {
acidentifier, err := types.NewACIdentifier(prefix)
if err != nil {
return "", err
}
dst := path.Join(ks.LocalPrefixPath, acidentifier.String(), fingerprint)
if err := ioutil.WriteFile(dst, []byte(""), 0644); err != nil {
return "", err
}
if err := os.Chmod(dst, 0644); err != nil {
return "", err
}
return dst, nil
} | go | func (ks *Keystore) MaskTrustedKeySystemPrefix(prefix, fingerprint string) (string, error) {
acidentifier, err := types.NewACIdentifier(prefix)
if err != nil {
return "", err
}
dst := path.Join(ks.LocalPrefixPath, acidentifier.String(), fingerprint)
if err := ioutil.WriteFile(dst, []byte(""), 0644); err != nil {
return "", err
}
if err := os.Chmod(dst, 0644); err != nil {
return "", err
}
return dst, nil
} | [
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] | // MaskTrustedKeySystemPrefix masks the system prefix trusted key identified by fingerprint. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/keystore/keystore.go#L120-L133 |
167,191 | rkt/rkt | pkg/keystore/keystore.go | DeleteTrustedKeyRoot | func (ks *Keystore) DeleteTrustedKeyRoot(fingerprint string) error {
return os.Remove(path.Join(ks.LocalRootPath, fingerprint))
} | go | func (ks *Keystore) DeleteTrustedKeyRoot(fingerprint string) error {
return os.Remove(path.Join(ks.LocalRootPath, fingerprint))
} | [
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"fingerprint",
")",
")",
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"}"
] | // DeleteTrustedKeyRoot deletes the root trusted key identified by fingerprint. | [
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"deletes",
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"root",
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"key",
"identified",
"by",
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"."
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/keystore/keystore.go#L136-L138 |
167,192 | rkt/rkt | pkg/keystore/keystore.go | MaskTrustedKeySystemRoot | func (ks *Keystore) MaskTrustedKeySystemRoot(fingerprint string) (string, error) {
dst := path.Join(ks.LocalRootPath, fingerprint)
if err := ioutil.WriteFile(dst, []byte(""), 0644); err != nil {
return "", err
}
if err := os.Chmod(dst, 0644); err != nil {
return "", err
}
return dst, nil
} | go | func (ks *Keystore) MaskTrustedKeySystemRoot(fingerprint string) (string, error) {
dst := path.Join(ks.LocalRootPath, fingerprint)
if err := ioutil.WriteFile(dst, []byte(""), 0644); err != nil {
return "", err
}
if err := os.Chmod(dst, 0644); err != nil {
return "", err
}
return dst, nil
} | [
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] | // MaskTrustedKeySystemRoot masks the system root trusted key identified by fingerprint. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/keystore/keystore.go#L141-L150 |
167,193 | rkt/rkt | pkg/keystore/keystore.go | TrustedKeyPrefixExists | func (ks *Keystore) TrustedKeyPrefixExists(prefix string) (bool, error) {
acidentifier, err := types.NewACIdentifier(prefix)
if err != nil {
return false, err
}
pathNamesPrefix := []string{
// example: /etc/rkt/trustedkeys/prefix.d/coreos.com/etcd
path.Join(ks.LocalPrefixPath, acidentifier.String()),
// example: /usr/lib/rkt/trustedkeys/prefix.d/coreos.com/etcd
path.Join(ks.SystemPrefixPath, acidentifier.String()),
}
for _, p := range pathNamesPrefix {
_, err := os.Stat(p)
if os.IsNotExist(err) {
continue
}
if err != nil {
return false, errwrap.Wrap(fmt.Errorf("cannot check dir %q", p), err)
}
files, err := ioutil.ReadDir(p)
if err != nil {
return false, errwrap.Wrap(fmt.Errorf("cannot list files in dir %q", p), err)
}
for _, f := range files {
if !f.IsDir() && f.Size() > 0 {
return true, nil
}
}
}
parentPrefix, _ := path.Split(prefix)
parentPrefix = strings.Trim(parentPrefix, "/")
if parentPrefix != "" {
return ks.TrustedKeyPrefixExists(parentPrefix)
}
return false, nil
} | go | func (ks *Keystore) TrustedKeyPrefixExists(prefix string) (bool, error) {
acidentifier, err := types.NewACIdentifier(prefix)
if err != nil {
return false, err
}
pathNamesPrefix := []string{
// example: /etc/rkt/trustedkeys/prefix.d/coreos.com/etcd
path.Join(ks.LocalPrefixPath, acidentifier.String()),
// example: /usr/lib/rkt/trustedkeys/prefix.d/coreos.com/etcd
path.Join(ks.SystemPrefixPath, acidentifier.String()),
}
for _, p := range pathNamesPrefix {
_, err := os.Stat(p)
if os.IsNotExist(err) {
continue
}
if err != nil {
return false, errwrap.Wrap(fmt.Errorf("cannot check dir %q", p), err)
}
files, err := ioutil.ReadDir(p)
if err != nil {
return false, errwrap.Wrap(fmt.Errorf("cannot list files in dir %q", p), err)
}
for _, f := range files {
if !f.IsDir() && f.Size() > 0 {
return true, nil
}
}
}
parentPrefix, _ := path.Split(prefix)
parentPrefix = strings.Trim(parentPrefix, "/")
if parentPrefix != "" {
return ks.TrustedKeyPrefixExists(parentPrefix)
}
return false, nil
} | [
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")",
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"}",
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"return",
"false",
",",
"nil",
"\n",
"}"
] | // TrustKeyPrefixExists returns whether or not there exists 1 or more trusted
// keys for a given prefix, or for any parent prefix. | [
"TrustKeyPrefixExists",
"returns",
"whether",
"or",
"not",
"there",
"exists",
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"trusted",
"keys",
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"or",
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"parent",
"prefix",
"."
] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/keystore/keystore.go#L154-L194 |
167,194 | rkt/rkt | pkg/keystore/keystore.go | TrustedKeyPrefixWithFingerprintExists | func (ks *Keystore) TrustedKeyPrefixWithFingerprintExists(prefix string, r io.ReadSeeker) (bool, error) {
defer r.Seek(0, os.SEEK_SET)
entityList, err := openpgp.ReadArmoredKeyRing(r)
if err != nil {
return false, err
}
if len(entityList) < 1 {
return false, errors.New("missing opengpg entity")
}
pubKey := entityList[0].PrimaryKey
fileName := fingerprintToFilename(pubKey.Fingerprint)
pathNamesRoot := []string{
// example: /etc/rkt/trustedkeys/root.d/8b86de38890ddb7291867b025210bd8888182190
path.Join(ks.LocalRootPath, fileName),
// example: /usr/lib/rkt/trustedkeys/root.d/8b86de38890ddb7291867b025210bd8888182190
path.Join(ks.SystemRootPath, fileName),
}
var pathNamesPrefix []string
if prefix != "" {
acidentifier, err := types.NewACIdentifier(prefix)
if err != nil {
return false, err
}
pathNamesPrefix = []string{
// example: /etc/rkt/trustedkeys/prefix.d/coreos.com/etcd/8b86de38890ddb7291867b025210bd8888182190
path.Join(ks.LocalPrefixPath, acidentifier.String(), fileName),
// example: /usr/lib/rkt/trustedkeys/prefix.d/coreos.com/etcd/8b86de38890ddb7291867b025210bd8888182190
path.Join(ks.SystemPrefixPath, acidentifier.String(), fileName),
}
}
pathNames := append(pathNamesRoot, pathNamesPrefix...)
for _, p := range pathNames {
_, err := os.Stat(p)
if err == nil {
return true, nil
} else if !os.IsNotExist(err) {
return false, errwrap.Wrap(fmt.Errorf("cannot check file %q", p), err)
}
}
return false, nil
} | go | func (ks *Keystore) TrustedKeyPrefixWithFingerprintExists(prefix string, r io.ReadSeeker) (bool, error) {
defer r.Seek(0, os.SEEK_SET)
entityList, err := openpgp.ReadArmoredKeyRing(r)
if err != nil {
return false, err
}
if len(entityList) < 1 {
return false, errors.New("missing opengpg entity")
}
pubKey := entityList[0].PrimaryKey
fileName := fingerprintToFilename(pubKey.Fingerprint)
pathNamesRoot := []string{
// example: /etc/rkt/trustedkeys/root.d/8b86de38890ddb7291867b025210bd8888182190
path.Join(ks.LocalRootPath, fileName),
// example: /usr/lib/rkt/trustedkeys/root.d/8b86de38890ddb7291867b025210bd8888182190
path.Join(ks.SystemRootPath, fileName),
}
var pathNamesPrefix []string
if prefix != "" {
acidentifier, err := types.NewACIdentifier(prefix)
if err != nil {
return false, err
}
pathNamesPrefix = []string{
// example: /etc/rkt/trustedkeys/prefix.d/coreos.com/etcd/8b86de38890ddb7291867b025210bd8888182190
path.Join(ks.LocalPrefixPath, acidentifier.String(), fileName),
// example: /usr/lib/rkt/trustedkeys/prefix.d/coreos.com/etcd/8b86de38890ddb7291867b025210bd8888182190
path.Join(ks.SystemPrefixPath, acidentifier.String(), fileName),
}
}
pathNames := append(pathNamesRoot, pathNamesPrefix...)
for _, p := range pathNames {
_, err := os.Stat(p)
if err == nil {
return true, nil
} else if !os.IsNotExist(err) {
return false, errwrap.Wrap(fmt.Errorf("cannot check file %q", p), err)
}
}
return false, nil
} | [
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] | // TrustedKeyPrefixWithFingerprintExists returns whether or not a trusted key with the fingerprint of the key accessible through r exists for the given prefix. | [
"TrustedKeyPrefixWithFingerprintExists",
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/keystore/keystore.go#L197-L242 |
167,195 | rkt/rkt | pkg/keystore/keystore.go | StoreTrustedKeyPrefix | func (ks *Keystore) StoreTrustedKeyPrefix(prefix string, r io.Reader) (string, error) {
acidentifier, err := types.NewACIdentifier(prefix)
if err != nil {
return "", err
}
return storeTrustedKey(path.Join(ks.LocalPrefixPath, acidentifier.String()), r)
} | go | func (ks *Keystore) StoreTrustedKeyPrefix(prefix string, r io.Reader) (string, error) {
acidentifier, err := types.NewACIdentifier(prefix)
if err != nil {
return "", err
}
return storeTrustedKey(path.Join(ks.LocalPrefixPath, acidentifier.String()), r)
} | [
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] | // StoreTrustedKeyPrefix stores the contents of public key r as a prefix trusted key. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/keystore/keystore.go#L245-L251 |
167,196 | rkt/rkt | pkg/keystore/keystore.go | StoreTrustedKeyRoot | func (ks *Keystore) StoreTrustedKeyRoot(r io.Reader) (string, error) {
return storeTrustedKey(ks.LocalRootPath, r)
} | go | func (ks *Keystore) StoreTrustedKeyRoot(r io.Reader) (string, error) {
return storeTrustedKey(ks.LocalRootPath, r)
} | [
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] | // StoreTrustedKeyRoot stores the contents of public key r as a root trusted key. | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/keystore/keystore.go#L254-L256 |
167,197 | rkt/rkt | pkg/set/string.go | ConditionalHas | func (s String) ConditionalHas(conditionFunc func(source, item string) bool, item string) bool {
for source := range s {
if conditionFunc(source, item) {
return true
}
}
return false
} | go | func (s String) ConditionalHas(conditionFunc func(source, item string) bool, item string) bool {
for source := range s {
if conditionFunc(source, item) {
return true
}
}
return false
} | [
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] | // ConditionalHas returns true if and only if there is any item 'source'
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/pkg/set/string.go#L60-L67 |
167,198 | rkt/rkt | stage1/init/common/path.go | RelEnvFilePath | func RelEnvFilePath(appName types.ACName) string {
return filepath.Join(envDir, appName.String())
} | go | func RelEnvFilePath(appName types.ACName) string {
return filepath.Join(envDir, appName.String())
} | [
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] | // RelEnvFilePath returns the path to the environment file for the given
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/common/path.go#L56-L58 |
167,199 | rkt/rkt | stage1/init/common/path.go | EnvFilePath | func EnvFilePath(root string, appName types.ACName) string {
return filepath.Join(common.Stage1RootfsPath(root), RelEnvFilePath(appName))
} | go | func EnvFilePath(root string, appName types.ACName) string {
return filepath.Join(common.Stage1RootfsPath(root), RelEnvFilePath(appName))
} | [
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] | 0c8765619cae3391a9ffa12c8dbd12ba7a475eb8 | https://github.com/rkt/rkt/blob/0c8765619cae3391a9ffa12c8dbd12ba7a475eb8/stage1/init/common/path.go#L61-L63 |