silence git gc --auto --quiet output

When --quiet is requested, gc --auto should not display messages unless
there is an error.

Signed-off-by: Tobias Ulmer <tobiasu@tmux.org>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
grep: prepare for new header field filter

grep supports only author and committer headers, which have the same
special treatment that later headers may or may not have. Check for
field type and only strip_timestamp() when the field is either author
or committer.

GREP_HEADER_FIELD_MAX is put in the grep_header_field enum to be
calculated automatically, correctly, as long as it's at the end of the
enum.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
revision: add --grep-reflog to filter commits by reflog messages

Similar to --author/--committer which filters commits by author and
committer header fields. --grep-reflog adds a fake "reflog" header to
commit and a grep filter to search on that line.

All rules to --author/--committer apply except no timestamp stripping.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
log --grep-reflog: reject the option without -g

Signed-off-by: Junio C Hamano <gitster@pobox.com>
revision: make --grep search in notes too if shown

Notes are shown after commit body. From user perspective it looks
pretty much like commit body and they may assume --grep would search
in that part too.

Make it so.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
mailinfo: don't require "text" mime type for attachments

Currently "git am" does insane things if the mbox it is given contains
attachments with a MIME type that aren't "text/*".

In particular, it will still decode them, and pass them "one line at a
time" to the mail body filter, but because it has determined that they
aren't text (without actually looking at the contents, just at the mime
type) the "line" will be the encoding line (eg 'base64') rather than a
line of *content*.

Which then will cause the text filtering to fail, because we won't
correctly notice when the attachment text switches from the commit message
to the actual patch. Resulting in a patch failure, even if patch may be a
perfectly well-formed attachment, it's just that the message type may be
(for example) "application/octet-stream" instead of "text/plain".

Just remove all the bogus games with the message_type. The only difference
that code creates is how the data is passed to the filter function
(chunked per-pred-code line or per post-decode line), and that difference
is *wrong*, since chunking things per pre-decode line can never be a
sensible operation, and cannot possibly matter for binary data anyway.

This code goes all the way back to March of 2007, in commit 87ab79923463
("builtin-mailinfo.c infrastrcture changes"), and apparently Don used to
pass random mbox contents to git. However, the pre-decode vs post-decode
logic really shouldn't matter even for that case, and more importantly, "I
fed git am crap" is not a valid reason to break *real* patch attachments.

If somebody really cares, and determines that some attachment is binary
data (by looking at the data, not the MIME-type), the whole attachment
should be dismissed, rather than fed in random-sized chunks to
"handle_filter()".

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Don Zickus <dzickus@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'tu/gc-auto-quiet'

"gc --auto" notified the user that auto-packing has triggered even
under the "--quiet" option.

* tu/gc-auto-quiet:
  silence git gc --auto --quiet output
Merge branch 'lt/mailinfo-handle-attachment-more-sanely'

A patch attached as application/octet-stream (e.g. not text/*) were
mishandled, not correctly honoring Content-Transfer-Encoding
(e.g. base64).

* lt/mailinfo-handle-attachment-more-sanely:
  mailinfo: don't require "text" mime type for attachments
Merge branch 'nd/grep-reflog'

Teach the commands from the "log" family the "--grep-reflog" option
to limit output by string that appears in the reflog entry when the
"--walk-reflogs" option is in effect.

* nd/grep-reflog:
  revision: make --grep search in notes too if shown
  log --grep-reflog: reject the option without -g
  revision: add --grep-reflog to filter commits by reflog messages
  grep: prepare for new header field filter
Update draft release notes to 1.8.0

Signed-off-by: Junio C Hamano <gitster@pobox.com>