t3600: Avoid "cp -a" which is a GNUism

With d4a7ffa (tests: "cp -a" is a GNUism, 2012-10-08), we got rid of
most of them, but a topic that was still in flight was missed.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
t4014: fix arguments to grep

These "expect-failure" tests were not looking for the right string
in the patch file.  For example:

	grep "^ *"S. E. Cipient" <scipient@example.com>\$" patch5

was looking for "^ *S." in three files:

    "E."
    "Cipient <scipient@example.com>$"
    patch5

With some implementations of grep, the lack of file "E." was
reported as an error, leading to the expected failure of the test.
With other implementations of grep, the pattern "^ *S." matched what
was in patch5, without missing files diagnosed as an error, which
lead to these tests to unexpectedly pass.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
t9020: use configured Python to run test helper

The test helper svnrdump_sim.py is used as "svnrdump" during the
execution of this test, but the arrangement had a few undesirable
things:

 - it relied on symbolic links;
 - unportable "export VAR=VAL" was used;
 - GIT_BUILD_DIR variable was not quoted correctly;
 - it assumed that the Python interpreter is in /usr/bin/ and
   called "python" (i.e. not "python2.7" etc.)

Rework this by writing a small shell script that spawns the right
Python interpreter, using the right quoting.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
t9502: do not assume GNU tar

The check_snapshot function inspects and makes sure that not cruft
outside the repository hierarchy is added to the tar archive, by
insisting that the output from "tar tf" on the resulting archive
does not contain anything that does not begin with "$prefix/".
There are two issues with this implementation:

 - Traditional tar implemenations that do not understand
   pax_global_header will write it out as if it is a plain file at
   the top-level;

 - Some implementations of tar does not add trailing slash when
   showing a directory entry (i.e. the output line for the entire
   archive will show "$prefix", not "$prefix/").

Fix them so that what we want to validate can be tested with
traditional tar implementations.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
tests: optionally fail passed todo immediately

Add "--fail-passed-todo" option to stop the test immediately when a
test that is expected to fail succeeds.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'jc/test-portability' into pu

* jc/test-portability:
  tests: optionally fail passed todo immediately
  t9502: do not assume GNU tar
  t9020: use configured Python to run test helper
  t4014: fix arguments to grep
  t3600: Avoid "cp -a" which is a GNUism
Merge branch 'jc/mkstemp-more-careful-error-reporting' into pu

* jc/mkstemp-more-careful-error-reporting:
  xmkstemp(): avoid showing truncated template more carefully
Merge branch 'bc/append-signed-off-by' into pu

Expecting a re-roll after a review.

* bc/append-signed-off-by:
  Unify appending signoff in format-patch, commit and sequencer
  format-patch: update append_signoff prototype
  format-patch: stricter S-o-b detection
  t4014: more tests about appending s-o-b lines
  sequencer.c: teach append_signoff to avoid adding a duplicate newline
  sequencer.c: teach append_signoff how to detect duplicate s-o-b
  sequencer.c: always separate "(cherry picked from" from commit body
  sequencer.c: recognize "(cherry picked from ..." as part of s-o-b footer
  t/t3511: add some tests of 'cherry-pick -s' functionality
  t/test-lib-functions.sh: allow to specify the tag name to test_commit
  sequencer.c: remove broken support for rfc2822 continuation in footer
Merge branch 'wk/submodule-update-remote' into pu

Expecting a re-roll.

* wk/submodule-update-remote:
  submodule add: If --branch is given, record it in .gitmodules
  submodule update: add --remote for submodule's upstream changes
  submodule: add get_submodule_config helper funtion

Conflicts:
	Documentation/git-submodule.txt
	git-submodule.sh
Merge branch 'jc/add-delete-default' into pu

"git add dir/" updated modified files and added new files, but does
not notice removed files, which may be "Huh?" to some users.  They
can of course use "git add -A dir/", but why should they?

Resurrected from graveyard, as I thought it was a worthwhile thing
to do in the longer term.

Waiting for comments.

* jc/add-delete-default:
  git add: notice removal of tracked paths by default
Merge branch 'jc/maint-name-rev' into pu

"git name-rev" names the given revision based on a ref that can be
reached in the smallest number of steps from the rev, but that is
not useful when the caller wants to know which tag is the oldest one
that contains the rev.  This teaches a new mode to the command that
uses the oldest ref among those which contain the rev.

I am not sure if this is worth it; for one thing, even with the help
from notes-cache, it seems to make the "describe --contains" even
slower. Also the command will be unusably slow for a user who does
not have a write access (hence unable to create or update the
notes-cache).

Stalled mostly due to lack of responses.

* jc/maint-name-rev:
  describe --contains: use "name-rev --algorithm=weight"
  name-rev --algorithm=weight: tests and documentation
  name-rev --algorithm=weight: cache the computed weight in notes
  name-rev --algorithm=weight: trivial optimization
  name-rev: --algorithm option
  name_rev: clarify the logic to assign a new tip-name to a commit
  name-rev: lose unnecessary typedef

Conflicts:
	builtin/name-rev.c
Merge branch 'fc/remote-bzr' into pu

New remote helper for bzr (v3).  With minor fixes, this may be ready
for 'next'.

* fc/remote-bzr:
  (fixup) test-bzr.sh: fix multi-line string assignment
  remote-bzr: detect local repositories
  remote-bzr: add support for older versions of bzr
  remote-bzr: add support to push special modes
  remote-bzr: add support for fecthing special modes
  remote-bzr: add simple tests
  remote-bzr: update working tree upon pushing
  remote-bzr: add support for remote repositories
  remote-bzr: add support for pushing
  Add new remote-bzr transport helper
Merge branch 'fc/remote-testgit-feature-done' into pu

Needs review and Ack (or Nack) from people involved in the remote
helper interface for this to move forward.

* fc/remote-testgit-feature-done:
  remote-testgit: properly check for errors
Merge branch 'mo/cvs-server-updates' into pu

Needs review by folks interested in cvsserver.

* mo/cvs-server-updates:
  t9402: Use TABs for indentation
  t9402: Rename check.cvsCount and check.list
  t9402: Simplify git ls-tree
  t9402: Add missing &&; Code style
  t9402: No space after IO-redirection
  t9402: Dont use test_must_fail cvs
  t9402: improve check_end_tree() and check_end_full_tree()
  t9402: sed -i is not portable
  cvsserver Documentation: new cvs ... -r support
  cvsserver: add t9402 to test branch and tag refs
  cvsserver: support -r and sticky tags for most operations
  cvsserver: Add version awareness to argsfromdir
  cvsserver: generalize getmeta() to recognize commit refs
  cvsserver: implement req_Sticky and related utilities
  cvsserver: add misc commit lookup, file meta data, and file listing functions
  cvsserver: define a tag name character escape mechanism
  cvsserver: cleanup extra slashes in filename arguments
  cvsserver: factor out git-log parsing logic
Merge branch 'mb/remote-default-nn-origin' into pu

When the user does not specify what remote to interact with, we
often attempt to use 'origin'.  This can now be customized via a
configuration variable.

Expecting a re-roll.

"The first remote becomes the default" bit is better done as a
separate step.

* mb/remote-default-nn-origin:
  Teach get_default_remote to respect remote.default.
  Test that plain "git fetch" uses remote.default when on a detached HEAD.
  Teach clone to set remote.default.
  Teach "git remote" about remote.default.
  Teach remote.c about the remote.default configuration setting.
  Rename remote.c's default_remote_name static variables.

Conflicts:
	builtin/remote.c
	t/t5505-remote.sh
Merge branch 'jc/xprm-generation' into pu

A toy to analyze how bad the clock skews are in histories of real
world projects.

Stalled mostly due to lack of responses.

* jc/xprm-generation:
  test-generation: compute generation numbers and clock skews
Merge branch 'jk/lua-hackery' into pu

Interesting exercise. When we do this for real, we probably would want
to wrap a commit to make it more like an "object" with methods like
"parents", etc.

* jk/lua-hackery:
  pretty: fix up one-off format_commit_message calls
  Minimum compilation fixup
  Makefile: make "lua" a bit more configurable
  add a "lua" pretty format
  add basic lua infrastructure
  pretty: make some commit-parsing helpers more public
Merge branch 'jc/doc-default-format' into pu

Need to address the installation half if this is to be any useful.

* jc/doc-default-format:
  [SQAUSH] allow "cd Doc* && make DEFAULT_DOC_TARGET=..."
  Allow generating a non-default set of documentation
Merge branch 'as/check-ignore' into pu

Duy helped to reroll this.

Expecting a re-roll.

* as/check-ignore:
  t0007: fix tests on Windows
  Documentation/check-ignore: we show the deciding match, not the first
  Add git-check-ignore sub-command
  dir.c: provide free_directory() for reclaiming dir_struct memory
  pathspec.c: move reusable code from builtin/add.c
  dir.c: refactor treat_gitlinks()
  dir.c: keep track of where patterns came from
  dir.c: refactor is_path_excluded()
  dir.c: refactor is_excluded()
  dir.c: refactor is_excluded_from_list()
  dir.c: rename excluded() to is_excluded()
  dir.c: rename excluded_from_list() to is_excluded_from_list()
  dir.c: rename path_excluded() to is_path_excluded()
  dir.c: rename cryptic 'which' variable to more consistent name
Merge branch 'jc/doc-maintainer' into pu

An early draft that is still incomplete.

* jc/doc-maintainer:
  update "howto maintain git"