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Jeff King c5e358d073 sequencer: don't say BUG on bogus input
When cherry-picking a single commit, we go through a special
code path that avoids creating a sequencer todo list at all.
This path expects our revision parsing to turn up exactly
one commit, and dies with a BUG if it doesn't.

But it's actually quite easy to fool. For example:

  $ git cherry-pick --author=no.such.person HEAD
  error: BUG: expected exactly one commit from walk
  fatal: cherry-pick failed

This isn't a bug; it's just bogus input.

The condition to trigger this message actually has two
parts:

  1. We saw no commits. That's the case in the example
     above. Let's drop the "BUG" here to make it clear that
     the input is the problem. And let's also use the phrase
     "empty commit set passed", which matches what we say
     when we do a real revision walk and it turns up empty.

  2. We saw more than one commit. That one _should_ be
     impossible to trigger, since we fed at most one tip and
     provided the no_walk option (and we'll have already
     expanded options like "--branches" that can turn into
     multiple tips). If this ever triggers, it's an
     indication that the conditional added by 7acaaac275
     (revert: allow single-pick in the middle of cherry-pick
     sequence, 2011-12-10) needs to more carefully define
     the single-pick case.

     So this can remain a bug, but we'll upgrade it to use
     the BUG() macro, which would make it easier to detect
     and analyze if it does trigger.

Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11 08:37:59 -07:00
.github
Documentation Git 2.16.4 2018-05-22 14:18:51 +09:00
block-sha1
builtin Sync with Git 2.15.2 2018-05-22 14:18:06 +09:00
ci Merge branch 'tg/split-index-fixes' into maint 2018-03-22 14:24:10 -07:00
compat Merge branch 'bp/fsmonitor' 2017-11-21 14:07:50 +09:00
contrib Merge branch 'rd/typofix' into maint 2018-03-22 14:24:22 -07:00
ewah Replace Free Software Foundation address in license notices 2017-11-09 13:21:21 +09:00
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gitk-git
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ppc
refs Merge branch 'mr/packed-ref-store-fix' into maint 2018-03-22 14:24:10 -07:00
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templates fsmonitor: simplify determining the git worktree under Windows 2017-11-13 10:02:20 +09:00
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.tsan-suppressions
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INSTALL
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alias.c
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apply.h
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blame.c Merge branch 'bw/diff-opt-impl-to-bitfields' 2017-11-09 14:31:27 +09:00
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cache-tree.c Merge branch 'tg/split-index-fixes' into maint 2018-03-22 14:24:10 -07:00
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checkout.h checkout: factor out functions to new lib file 2017-11-27 09:48:06 +09:00
color.c refactor "dumb" terminal determination 2017-12-04 09:38:30 -08:00
color.h
column.c column: do not include pager.c 2017-10-24 10:19:06 +09:00
column.h
combine-diff.c Merge branch 'bw/diff-opt-impl-to-bitfields' 2017-11-09 14:31:27 +09:00
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commit.h Merge branch 'rs/lose-leak-pending' into maint 2018-02-15 15:18:11 -08:00
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configure.ac Makefile: NO_OPENSSL=1 should no longer imply BLK_SHA1=1 2017-12-28 11:55:56 -08:00
connect.c connect: correct style of C-style comment 2017-11-21 14:01:03 +09:00
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convert.c Merge branch 'tb/check-crlf-for-safe-crlf' 2017-12-27 11:16:21 -08:00
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csum-file.c
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daemon.c daemon: fix length computation in newline stripping 2018-01-25 13:50:17 -08:00
date.c
decorate.c decorate: clean up and document API 2017-12-08 09:16:27 -08:00
decorate.h decorate: clean up and document API 2017-12-08 09:16:27 -08:00
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diff-lib.c Merge branch 'bc/hash-algo' 2017-12-13 13:28:54 -08:00
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diff.c Merge branch 'nd/diff-flush-before-warning' into maint 2018-03-22 14:24:09 -07:00
diff.h diff: support anchoring line(s) 2017-11-28 10:40:04 +09:00
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diffcore-rename.c diffcore-rename: make diff-tree -l0 mean -l<large> 2017-12-02 22:16:57 -08:00
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dir.c Merge branch 'jh/object-filtering' 2017-12-27 11:16:21 -08:00
dir.h Merge branch 'jh/object-filtering' 2017-12-27 11:16:21 -08:00
editor.c launch_editor(): indicate that Git waits for user input 2017-12-07 10:10:19 -08:00
entry.c Merge branch 'bp/fsmonitor' 2017-11-21 14:07:50 +09:00
environment.c Merge branch 'ar/unconfuse-three-dots' 2017-12-19 11:33:58 -08:00
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fetch-pack.c Merge branch 'jk/fewer-pack-rescan' 2017-12-06 09:23:42 -08:00
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fmt-merge-msg.h
fsck.c
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fsmonitor.c fsmonitor: store fsmonitor bitmap before splitting index 2017-11-10 14:05:01 +09:00
fsmonitor.h fsmonitor: store fsmonitor bitmap before splitting index 2017-11-10 14:05:01 +09:00
generate-cmdlist.sh generate-cmdlist: avoid non-deterministic output 2017-11-22 14:56:30 +09:00
gettext.c
gettext.h
git-add--interactive.perl add--interactive: ignore submodule changes except HEAD 2018-01-16 12:32:45 -08:00
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git-bisect.sh Merge branch 'sb/bisect-run-empty' 2017-11-15 12:14:36 +09:00
git-compat-util.h Sync with Git 2.15.2 2018-05-22 14:18:06 +09:00
git-cvsexportcommit.perl
git-cvsimport.perl cvsimport: apply shell-quoting regex globally 2017-12-08 09:02:54 -08:00
git-cvsserver.perl
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git-filter-branch.sh
git-instaweb.sh
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh
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git-send-email.perl git-send-email: honor $PATH for sendmail binary 2017-11-28 10:14:30 +09:00
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git-submodule.sh Sync with Git 2.15.2 2018-05-22 14:18:06 +09:00
git-svn.perl Merge branch 'ew/svn-branch-segfault-fix' into maint 2018-03-22 14:24:11 -07:00
git-web--browse.sh
git.c Merge branch 'ma/branch-list-paginate' 2017-11-28 13:41:50 +09:00
git.rc mingw: include the full version information in the resources 2017-11-01 13:43:52 +09:00
gpg-interface.c
gpg-interface.h
graph.c
graph.h
grep.c Merge branch 'ab/pcre2-grep' 2017-12-13 13:28:54 -08:00
grep.h Merge branch 'ab/pcre-v2' into maint 2017-11-21 14:05:30 +09:00
hash.h Add structure representing hash algorithm 2017-11-13 13:20:44 +09:00
hashmap.c
hashmap.h Merge branch 'rb/hashmap-h-compilation-fix' into maint 2018-03-22 14:24:15 -07:00
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http-backend.c
http-fetch.c
http-push.c http-push: use hex_to_bytes() 2017-11-01 10:35:39 +09:00
http-walker.c
http.c http: support omitting data from traces 2018-01-19 13:06:57 -08:00
http.h
ident.c
imap-send.c imap-send: URI encode server folder 2017-12-18 13:57:06 -08:00
iterator.h
khash.h
kwset.c Replace Free Software Foundation address in license notices 2017-11-09 13:21:21 +09:00
kwset.h Replace Free Software Foundation address in license notices 2017-11-09 13:21:21 +09:00
levenshtein.c
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list-objects-filter-options.h list-objects-filter-options: support --no-filter 2017-12-05 09:44:36 -08:00
list-objects-filter.c list-objects: filter objects in traverse_commit_list 2017-11-22 14:11:57 +09:00
list-objects-filter.h list-objects: filter objects in traverse_commit_list 2017-11-22 14:11:57 +09:00
list-objects.c Merge branch 'sb/describe-blob' 2017-12-28 14:08:50 -08:00
list-objects.h list-objects: filter objects in traverse_commit_list 2017-11-22 14:11:57 +09:00
list.h
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ll-merge.h
lockfile.c
lockfile.h
log-tree.c commit: drop uses of get_cached_commit_buffer() 2018-02-22 12:12:16 -08:00
log-tree.h log: add option to choose which refs to decorate 2017-11-22 13:18:59 +09:00
mailinfo.c Merge branch 'jc/mailinfo-cleanup-fix' into maint 2018-03-22 14:24:16 -07:00
mailinfo.h
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merge-recursive.c Merge branch 'jc/merge-symlink-ours-theirs' into maint 2018-02-15 15:18:12 -08:00
merge-recursive.h
merge.c Merge branch 'ew/empty-merge-with-dirty-index-maint' into ew/empty-merge-with-dirty-index 2017-12-22 12:48:38 -08:00
mergesort.c
mergesort.h
mru.c
mru.h
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c Switch empty tree and blob lookups to use hash abstraction 2017-11-13 13:20:44 +09:00
notes-merge.h
notes-utils.c
notes-utils.h
notes.c Merge branch 'rs/hex-to-bytes-cleanup' 2017-11-09 14:31:27 +09:00
notes.h
object.c object: add clear_commit_marks_all() 2017-12-28 13:50:05 -08:00
object.h Merge branch 'rs/lose-leak-pending' into maint 2018-02-15 15:18:11 -08:00
oidmap.c oidmap: ensure map is initialized 2017-12-27 12:28:06 -08:00
oidmap.h oidmap: add oidmap iterator methods 2017-11-22 14:11:56 +09:00
oidset.c oidset: add iterator methods to oidset 2017-11-22 14:11:56 +09:00
oidset.h oidset: don't return value from oidset_init 2018-01-08 15:24:35 -08:00
pack-bitmap-write.c
pack-bitmap.c
pack-bitmap.h
pack-check.c
pack-objects.c
pack-objects.h
pack-revindex.c
pack-revindex.h
pack-write.c
pack.h
packfile.c
packfile.h
pager.c
parse-options-cb.c
parse-options.c
parse-options.h
patch-delta.c
patch-ids.c diff: make struct diff_flags members lowercase 2017-11-01 11:51:40 +09:00
patch-ids.h
path.c Sync with Git 2.14.4 2018-05-22 14:15:14 +09:00
path.h path: document path functions 2017-12-13 11:14:25 -08:00
pathspec.c Merge branch 'ex/deprecate-empty-pathspec-as-match-all' 2017-11-06 13:11:29 +09:00
pathspec.h Merge branch 'bw/pathspec-match-submodule-boundary' 2017-12-19 11:33:56 -08:00
pkt-line.c Merge branch 'bw/protocol-v1' 2017-12-06 09:23:44 -08:00
pkt-line.h
preload-index.c
pretty.c log: add option to choose which refs to decorate 2017-11-22 13:18:59 +09:00
pretty.h format: create docs for pretty.h 2017-12-12 10:41:15 -08:00
prio-queue.c
prio-queue.h
progress.c Merge branch 'en/rename-progress' 2017-12-19 11:33:55 -08:00
progress.h progress: fix progress meters when dealing with lots of work 2017-11-15 13:11:25 +09:00
prompt.c
prompt.h
protocol.c
protocol.h
quote.c
quote.h
reachable.c
reachable.h
read-cache.c Sync with Git 2.15.2 2018-05-22 14:18:06 +09:00
ref-filter.c Merge branch 'rs/lose-leak-pending' into maint 2018-02-15 15:18:11 -08:00
ref-filter.h
reflog-walk.c
reflog-walk.h
refs.c log: add option to choose which refs to decorate 2017-11-22 13:18:59 +09:00
refs.h log: add option to choose which refs to decorate 2017-11-22 13:18:59 +09:00
remote-curl.c
remote-testsvn.c
remote.c Merge branch 'js/for-each-ref-remote-name-and-ref' 2017-11-15 12:14:32 +09:00
remote.h for-each-ref: let upstream/push report the remote ref name 2017-11-08 10:18:23 +09:00
replace_object.c
repository.c Merge branch 'tg/split-index-fixes' into maint 2018-03-22 14:24:10 -07:00
repository.h Integrate hash algorithm support with repo setup 2017-11-13 13:20:44 +09:00
rerere.c
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resolve-undo.c
resolve-undo.h
revision.c Merge branch 'jk/cached-commit-buffer' into maint 2018-03-22 14:24:25 -07:00
revision.h revision: drop --show-all option 2018-02-22 12:15:25 -08:00
run-command.c
run-command.h
send-pack.c send-pack: use internal argv_array of struct child_process 2017-12-22 13:33:53 -08:00
send-pack.h
sequencer.c sequencer: don't say BUG on bogus input 2018-07-11 08:37:59 -07:00
sequencer.h rebase -i: learn to abbreviate command names 2017-12-05 10:20:51 -08:00
server-info.c
setup.c Merge branch 'sg/setup-doc-update' 2017-12-19 11:33:58 -08:00
sh-i18n--envsubst.c Replace Free Software Foundation address in license notices 2017-11-09 13:21:21 +09:00
sha1-array.c
sha1-array.h
sha1-lookup.c
sha1-lookup.h
sha1_file.c Merge branch 'ds/for-each-file-in-obj-micro-optim' 2017-12-13 13:28:57 -08:00
sha1_name.c Merge branch 'jc/branch-name-sanity' 2017-11-28 13:41:49 +09:00
sha1dc_git.c
sha1dc_git.h
shallow.c
shell.c
shortlog.h
show-index.c
sideband.c refactor "dumb" terminal determination 2017-12-04 09:38:30 -08:00
sideband.h
sigchain.c
sigchain.h
split-index.c split-index: don't write cache tree with null oid entries 2018-01-19 10:36:39 -08:00
split-index.h
strbuf.c Merge branch 'jd/fix-strbuf-add-urlencode-bytes' 2018-01-05 13:28:10 -08:00
strbuf.h strbuf: remove unused stripspace function alias 2017-12-05 08:50:15 -08:00
streaming.c
streaming.h
string-list.c
string-list.h
sub-process.c
sub-process.h
submodule-config.c Sync with Git 2.15.2 2018-05-22 14:18:06 +09:00
submodule-config.h Sync with Git 2.15.2 2018-05-22 14:18:06 +09:00
submodule.c submodule: submodule_move_head omits old argument in forced case 2018-01-05 12:35:35 -08:00
submodule.h submodule: convert get_next_submodule to not rely on the_index 2017-12-12 12:35:22 -08:00
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: improve performance while category is disabled 2017-12-06 09:43:02 -08:00
trace.h trace: improve performance while category is disabled 2017-12-06 09:43:02 -08:00
trailer.c
trailer.h
transport-helper.c Merge branch 'jt/transport-hide-vtable' 2017-12-28 14:08:47 -08:00
transport-internal.h transport: make transport vtable more private 2017-12-14 14:28:04 -08:00
transport.c Merge branch 'jt/transport-hide-vtable' 2017-12-28 14:08:47 -08:00
transport.h transport: make transport vtable more private 2017-12-14 14:28:04 -08:00
tree-diff.c diff: make struct diff_flags members lowercase 2017-11-01 11:51:40 +09:00
tree-walk.c Merge branch 'bw/pathspec-match-submodule-boundary' 2017-12-19 11:33:56 -08:00
tree-walk.h
tree.c
tree.h
unicode_width.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c unpack-trees: oneway_merge to update submodules 2018-01-05 12:35:35 -08:00
unpack-trees.h
upload-pack.c Merge branch 'bw/protocol-v1' 2017-12-06 09:23:44 -08:00
url.c
url.h
urlmatch.c
urlmatch.h
usage.c
userdiff.c
userdiff.h
utf8.c Sync with Git 2.14.4 2018-05-22 14:15:14 +09:00
utf8.h is_hfs_dotgit: match other .git files 2018-05-21 23:50:11 -04:00
varint.c
varint.h
version.c version --build-options: report commit, too, if possible 2017-12-14 22:53:04 -08:00
version.h version --build-options: report commit, too, if possible 2017-12-14 22:53:04 -08:00
versioncmp.c
walker.c
walker.h
wildmatch.c
wildmatch.h
worktree.c Merge branch 'bc/object-id' 2017-11-06 14:24:27 +09:00
worktree.h
wrap-for-bin.sh
wrapper.c wrapper.c: consistently quote filenames in error messages 2017-11-06 11:53:14 +09:00
write_or_die.c
ws.c
wt-status.c Merge branch 'nd/ita-wt-renames-in-status' into maint 2018-02-27 10:39:35 -08:00
wt-status.h Merge branch 'nd/ita-wt-renames-in-status' into maint 2018-02-27 10:39:35 -08:00
xdiff-interface.c xdiff-interface: export comparing and hashing strings 2017-10-26 11:23:22 +09:00
xdiff-interface.h xdiff-interface: export comparing and hashing strings 2017-10-26 11:23:22 +09:00
zlib.c

README.md

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-.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://public-inbox.org/git/, http://marc.info/?l=git and other archival sites.

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