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Jeff King 9dad073d4b sequencer: handle ignore_footer when parsing trailers
The append_signoff() function takes an "ignore_footer"
argument, which specifies a number of bytes at the end of
the message buffer which should not be considered (they
cannot contain trailers, and the trailer is spliced in
before them).

But to find the existing trailers, it calls into
has_conforming_trailer(). That function takes an
ignore_footer parameter, but since 967dfd4d56 (sequencer:
use trailer's trailer layout, 2016-11-02) the parameter is
completely ignored.

The trailer interface we're using takes a single string,
with no option to tell it to use part of the string.
However, since we have a mutable strbuf, we can work around
this by simply overwriting (and later restoring) the
boundary with a NUL.

I'm not sure if this can actually trigger a bug in practice.
It's easy to get a non-zero ignore_footer by doing something
like this:

  git commit -F - --cleanup=verbatim <<-EOF
  subject

  body

  Signed-off-by: me

  # this looks like a comment, but is actually in the
  # message! That makes the earlier s-o-b fake.
  EOF

  git commit --amend -s

There git-commit calls ignore_non_trailer() to count up the
"#" cruft, which becomes the ignore_footer header. But it
works even without this patch! That's because the trailer
code _also_ calls ignore_non_trailer() and skips the cruft,
too. So it happens to work because the only callers with a
non-zero ignore_footer are using the exact same function
that the trailer parser uses internally.

And that seems true for all of the current callers, but
there's nothing guaranteeing it. We're better off only
feeding the correct buffer to the trailer code in the first
place.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-30 12:53:48 -07:00
.github ci: avoid ugly "failure" in the `ci-config` job 2020-09-02 12:21:45 -07:00
Documentation Eighteenth batch 2020-09-29 14:01:22 -07:00
block-sha1
builtin sparse-checkout: fill in some options boilerplate 2020-09-30 12:53:48 -07:00
ci
compat vcbuild: fix batch file name in README 2020-09-03 10:19:48 -07:00
contrib Merge branch 'jk/diff-highlight-blank-match-fix' 2020-09-25 15:25:42 -07:00
ewah
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mergetools Merge branch 'ls/mergetool-meld-auto-merge' 2020-09-22 12:36:29 -07:00
negotiator
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po po: add missing letter for French message 2020-08-28 14:02:07 -07:00
ppc
refs Merge branch 'hn/refs-trace-backend' 2020-09-22 12:36:28 -07:00
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templates hooks--update.sample: use hash-agnostic zero OID 2020-09-23 09:31:45 -07:00
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COPYING
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LGPL-2.1
Makefile Merge branch 'jx/proc-receive-hook' 2020-09-25 15:25:39 -07:00
README.md
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add-interactive.c
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add-patch.c Merge branch 'pw/add-p-edit-ita-path' 2020-09-22 12:36:28 -07:00
advice.c
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apply.c Merge branch 'jk/leakfix' 2020-08-27 14:04:49 -07:00
apply.h
archive-tar.c
archive-zip.c
archive.c wt-status: tolerate dangling marks 2020-09-02 14:39:25 -07:00
archive.h
attr.c
attr.h
banned.h
base85.c
bisect.c
bisect.h
blame.c Merge branch 'tb/bloom-improvements' 2020-09-29 14:01:20 -07:00
blame.h
blob.c
blob.h
bloom.c builtin/commit-graph.c: introduce '--max-new-filters=<n>' 2020-09-18 10:35:39 -07:00
bloom.h bloom: encode out-of-bounds filters as non-empty 2020-09-17 21:55:50 -07:00
branch.c wt-status: tolerate dangling marks 2020-09-02 14:39:25 -07:00
branch.h
builtin.h Merge branch 'ds/maintenance-part-1' 2020-09-25 15:25:38 -07:00
bulk-checkin.c
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bundle.c Merge branch 'jt/interpret-branch-name-fallback' 2020-09-09 13:53:09 -07:00
bundle.h
cache-tree.c
cache-tree.h
cache.h builtin/clone: avoid failure with GIT_DEFAULT_HASH 2020-09-22 09:22:32 -07:00
chdir-notify.c
chdir-notify.h
check-builtins.sh
check_bindir
checkout.c
checkout.h
color.c
color.h
column.c
column.h
combine-diff.c
command-list.txt maintenance: create basic maintenance runner 2020-09-17 11:30:04 -07:00
commit-graph.c Merge branch 'tb/bloom-improvements' 2020-09-29 14:01:20 -07:00
commit-graph.h Merge branch 'tb/bloom-improvements' 2020-09-29 14:01:20 -07:00
commit-reach.c
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commit-slab-impl.h
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commit.c Merge branch 'jt/interpret-branch-name-fallback' 2020-09-09 13:53:09 -07:00
commit.h drop unused argc parameters 2020-09-30 12:53:47 -07:00
common-main.c
config.c Merge branch 'jk/leakfix' 2020-08-27 14:04:49 -07:00
config.h
config.mak.dev
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configure.ac
connect.c Merge branch 'jk/leakfix' 2020-08-27 14:04:49 -07:00
connect.h
connected.c Merge branch 'rs/more-buffered-io' 2020-08-24 14:54:31 -07:00
connected.h
convert.c convert: drop unused crlf_action from check_global_conv_flags_eol() 2020-09-30 12:53:47 -07:00
convert.h
copy.c
credential.c run_command: teach API users to use embedded 'args' more 2020-08-26 15:32:37 -07:00
credential.h
csum-file.c
csum-file.h
ctype.c
daemon.c
date.c
decorate.c
decorate.h
delta-islands.c
delta-islands.h
delta.h
detect-compiler
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diff-lib.c Merge branch 'es/format-patch-interdiff-cleanup' 2020-09-22 12:36:28 -07:00
diff-no-index.c
diff.c diff: fix modified lines stats with --stat and --numstat 2020-09-24 12:31:45 -07:00
diff.h Merge branch 'tb/bloom-improvements' 2020-09-29 14:01:20 -07:00
diffcore-break.c
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diffcore.h
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dir.c Merge branch 'jk/leakfix' 2020-08-27 14:04:49 -07:00
dir.h
editor.c
entry.c
environment.c Merge branch 'jk/leakfix' 2020-08-27 14:04:49 -07:00
exec-cmd.c
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fetch-pack.h Merge branch 'jt/lazy-fetch' 2020-09-03 12:37:04 -07:00
fmt-merge-msg.c
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fsck.c
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fsmonitor.c
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fuzz-commit-graph.c commit-graph: pass a 'struct repository *' in more places 2020-09-09 12:51:48 -07:00
fuzz-pack-headers.c
fuzz-pack-idx.c
generate-cmdlist.sh Fit to Plan 9's ANSI/POSIX compatibility layer 2020-09-09 22:31:31 -07:00
generate-configlist.sh
gettext.c
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git-add--interactive.perl Merge branch 'pw/add-p-edit-ita-path' 2020-09-22 12:36:28 -07:00
git-archimport.perl
git-bisect.sh Merge branch 'hl/bisect-doc-clarify-bad-good-ordering' 2020-09-03 12:37:06 -07:00
git-compat-util.h
git-cvsexportcommit.perl cvsexportcommit: do not run git programs in dashed form 2020-08-26 14:49:52 -07:00
git-cvsimport.perl
git-cvsserver.perl
git-difftool--helper.sh
git-filter-branch.sh
git-instaweb.sh
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh
git-mergetool.sh
git-p4.py git-p4: use HEAD~$n to find parent commit for unshelve 2020-09-19 13:44:55 -07:00
git-parse-remote.sh
git-quiltimport.sh
git-rebase--preserve-merges.sh
git-request-pull.sh
git-send-email.perl
git-sh-i18n.sh
git-sh-setup.sh
git-submodule.sh
git-svn.perl
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git.c Merge branch 'ds/maintenance-part-1' 2020-09-25 15:25:38 -07:00
git.rc
gpg-interface.c
gpg-interface.h
graph.c
graph.h
grep.c
grep.h
hash.h
hashmap.c
hashmap.h
help.c Merge branch 'jk/leakfix' 2020-08-27 14:04:49 -07:00
help.h
hex.c
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http-fetch.c
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ident.c Merge branch 'pw/rebase-i-more-options' 2020-09-03 12:37:01 -07:00
imap-send.c
iterator.h
json-writer.c
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khash.h
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levenshtein.c
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line-log.c Merge branch 'tb/bloom-improvements' 2020-09-29 14:01:20 -07:00
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linear-assignment.c
linear-assignment.h
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list-objects-filter-options.h
list-objects-filter.c
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list.h
ll-merge.c
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lockfile.c
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log-tree.c Merge branch 'es/format-patch-interdiff-cleanup' 2020-09-22 12:36:28 -07:00
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mailinfo.c
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mailmap.h
match-trees.c
mem-pool.c
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merge-recursive.c
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merge.c
mergesort.c
mergesort.h
midx.c Merge branch 'rs/misc-cleanups' 2020-09-18 17:58:00 -07:00
midx.h
name-hash.c
notes-cache.c
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notes-merge.c
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notes-utils.c
notes-utils.h
notes.c
notes.h
object-store.h
object.c
object.h maintenance: add auto condition for commit-graph task 2020-09-17 11:30:05 -07:00
oid-array.c
oid-array.h
oidmap.c
oidmap.h
oidset.c
oidset.h
pack-bitmap-write.c pack-bitmap-write: use hashwrite_be32() in write_hash_cache() 2020-09-06 13:40:41 -07:00
pack-bitmap.c
pack-bitmap.h
pack-check.c
pack-objects.c
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pack-revindex.c
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pack-write.c pack-write: use hashwrite_be32() in write_idx_file() 2020-09-19 12:15:36 -07:00
pack.h
packfile.c Merge branch 'jk/dont-count-existing-objects-twice' 2020-09-22 12:36:32 -07:00
packfile.h midx: traverse the local MIDX first 2020-08-28 14:07:09 -07:00
pager.c
parse-options-cb.c assert PARSE_OPT_NONEG in parse-options callbacks 2020-09-30 12:53:47 -07:00
parse-options.c
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c
path.h
pathspec.c
pathspec.h
pkt-line.c
pkt-line.h
preload-index.c
pretty.c pretty: refactor `format_sanitized_subject()` 2020-08-28 13:52:51 -07:00
pretty.h pretty: refactor `format_sanitized_subject()` 2020-08-28 13:52:51 -07:00
prio-queue.c
prio-queue.h
progress.c
progress.h
promisor-remote.c
promisor-remote.h
prompt.c
prompt.h
protocol.c protocol: re-enable v2 protocol by default 2020-09-25 11:40:42 -07:00
protocol.h
prune-packed.c
prune-packed.h
quote.c quote: turn 'nodq' parameter into a set of flags 2020-09-10 13:08:07 -07:00
quote.h quote: turn 'nodq' parameter into a set of flags 2020-09-10 13:08:07 -07:00
range-diff.c
range-diff.h
reachable.c
reachable.h
read-cache.c read-cache: fix mem-pool allocation for multi-threaded index loading 2020-09-06 12:34:12 -07:00
rebase-interactive.c
rebase-interactive.h
rebase.c
rebase.h
ref-filter.c ref-filter: make internal reachable-filter API more precise 2020-09-18 15:41:55 -07:00
ref-filter.h ref-filter: make internal reachable-filter API more precise 2020-09-18 15:41:55 -07:00
reflog-walk.c
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refs.c Merge branch 'hn/refs-trace-backend' 2020-09-22 12:36:28 -07:00
refs.h Merge branch 'jt/interpret-branch-name-fallback' 2020-09-09 13:53:09 -07:00
refspec.c refspec: add and use refspec_appendf() 2020-09-06 13:15:46 -07:00
refspec.h refspec: add and use refspec_appendf() 2020-09-06 13:15:46 -07:00
remote-curl.c Merge branch 'jt/lazy-fetch' 2020-09-03 12:37:04 -07:00
remote.c Merge branch 'rs/refspec-leakfix' 2020-09-18 17:58:00 -07:00
remote.h Merge branch 'jx/proc-receive-hook' 2020-09-25 15:25:39 -07:00
replace-object.c
replace-object.h
repo-settings.c Merge branch 'tb/bloom-improvements' 2020-09-29 14:01:20 -07:00
repository.c
repository.h Merge branch 'tb/bloom-improvements' 2020-09-29 14:01:20 -07:00
rerere.c
rerere.h
reset.c
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resolve-undo.c
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revision.c drop unused argc parameters 2020-09-30 12:53:47 -07:00
revision.h revision: add separate field for "-m" of "diff-index -m" 2020-08-31 13:42:58 -07:00
run-command.c maintenance: replace run_auto_gc() 2020-09-17 11:30:05 -07:00
run-command.h maintenance: replace run_auto_gc() 2020-09-17 11:30:05 -07:00
send-pack.c Merge branch 'hx/push-atomic-with-cert' 2020-09-25 15:25:41 -07:00
send-pack.h
sequencer.c sequencer: handle ignore_footer when parsing trailers 2020-09-30 12:53:48 -07:00
sequencer.h Merge branch 'pw/rebase-i-more-options' 2020-09-03 12:37:01 -07:00
serve.c
serve.h
server-info.c
setup.c
sh-i18n--envsubst.c
sha1-file.c
sha1-lookup.c
sha1-lookup.h
sha1-name.c wt-status: tolerate dangling marks 2020-09-02 14:39:25 -07:00
sha1dc_git.c
sha1dc_git.h
shallow.c
shallow.h
shell.c
shortlog.h
sideband.c
sideband.h
sigchain.c
sigchain.h
split-index.c
split-index.h
stable-qsort.c
strbuf.c
strbuf.h
streaming.c
streaming.h
string-list.c
string-list.h
strvec.c
strvec.h
sub-process.c
sub-process.h
submodule-config.c
submodule-config.h
submodule.c Merge branch 'mf/submodule-summary-with-correct-repository' 2020-09-18 17:58:05 -07:00
submodule.h
symlinks.c
tag.c
tag.h
tar.h
tempfile.c
tempfile.h
thread-utils.c
thread-utils.h
tmp-objdir.c
tmp-objdir.h
trace.c
trace.h
trace2.c
trace2.h
trailer.c run_command: teach API users to use embedded 'args' more 2020-08-26 15:32:37 -07:00
trailer.h
transport-helper.c Merge branch 'jx/proc-receive-hook' 2020-09-25 15:25:39 -07:00
transport-internal.h
transport.c Merge branch 'jx/proc-receive-hook' 2020-09-25 15:25:39 -07:00
transport.h Merge branch 'jt/lazy-fetch' 2020-09-03 12:37:04 -07:00
tree-diff.c bloom/diff: properly short-circuit on max_changes 2020-09-17 09:31:25 -07:00
tree-walk.c
tree-walk.h
tree.c
tree.h
unicode-width.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c
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upload-pack.c Merge branch 'rs/more-buffered-io' 2020-08-24 14:54:31 -07:00
upload-pack.h
url.c
url.h
urlmatch.c
urlmatch.h
usage.c
userdiff.c
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c
walker.c
walker.h
wildmatch.c
wildmatch.h
worktree.c worktree: teach "repair" to fix outgoing links to worktrees 2020-08-31 11:47:45 -07:00
worktree.h worktree: teach "repair" to fix outgoing links to worktrees 2020-08-31 11:47:45 -07:00
wrap-for-bin.sh
wrapper.c xrealloc: do not reuse pointer freed by zero-length realloc() 2020-09-02 12:18:14 -07:00
write-or-die.c
ws.c
wt-status.c Merge branch 'jc/quote-path-cleanup' 2020-09-18 17:58:04 -07:00
wt-status.h
xdiff-interface.c
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zlib.c

README.md

Build status

Git - fast, scalable, distributed revision control system

Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.

Git is an Open Source project covered by the GNU General Public License version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.

Please read the file INSTALL for installation instructions.

Many Git online resources are accessible from https://git-scm.com/ including full documentation and Git related tools.

See Documentation/gittutorial.txt to get started, then see Documentation/giteveryday.txt for a useful minimum set of commands, and Documentation/git-<commandname>.txt for documentation of each command. If git has been correctly installed, then the tutorial can also be read with man gittutorial or git help tutorial, and the documentation of each command with man git-<commandname> or git help <commandname>.

CVS users may also want to read Documentation/gitcvs-migration.txt (man gitcvs-migration or git help cvs-migration if git is installed).

The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission). To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org. The mailing list archives are available at https://lore.kernel.org/git/, http://marc.info/?l=git and other archival sites.

Issues which are security relevant should be disclosed privately to the Git Security mailing list git-security@googlegroups.com.

The maintainer frequently sends the "What's cooking" reports that list the current status of various development topics to the mailing list. The discussion following them give a good reference for project status, development direction and remaining tasks.

The name "git" was given by Linus Torvalds when he wrote the very first version. He described the tool as "the stupid content tracker" and the name as (depending on your mood):

  • random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of "get" may or may not be relevant.
  • stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang.
  • "global information tracker": you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room.
  • "goddamn idiotic truckload of sh*t": when it breaks