bisect: error out when passing bad path parameters
As reported by Mark Lodato, "git bisect", when it was started with
path parameters that match no commit was kind of working without
taking account of path parameters and was reporting something like:
Bisecting: -1 revisions left to test after this (roughly 0 steps)
It is more correct and safer to just error out in this case, before
displaying the revisions left, so this patch does just that.
Note that this bug is very old, it exists at least since v1.5.5.
And it is possible to detect that case earlier in the bisect
algorithm, but it is not clear that it would be an improvement to
error out earlier, on the contrary it may change the behavior of
"git rev-list --bisect-all" for example, which is currently correct.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
If we encounter a symref that is dangling, in most cases we will warn
about it. The one exception is a dangling HEAD, as that indicates a
branch yet to be born.
However, the check in dwim_ref was not quite right. If we were fed
something like "HEAD^0" we would try to resolve "HEAD", see that it is
dangling, and then check whether the _original_ string we got was
"HEAD" (which it wasn't in this case). And that makes no sense; the
dangling thing we found was not "HEAD^0" but rather "HEAD".
Fixing this squelches a scary warning from "submodule summary HEAD" (and
consequently "git status" with status.submodulesummary set) in an empty
repo, as the submodule script calls "git rev-parse -q --verify HEAD^0".
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
stash pop: remove 'apply' options during 'drop' invocation
The 'git stash pop' option parsing used to remove the first argument
in --index mode. At the time this was implemented, this first
argument was always --index. However, since the invention of the -q
option in fcdd0e9 (stash: teach quiet option, 2009-06-17) you can
cause an internal invocation of
git stash drop --index
by running
git stash pop -q --index
which then of course fails because drop doesn't know --index.
To handle this, instead let 'git stash apply' decide what the future
argument to 'drop' should be.
Warning: this means that 'git stash apply' must parse all options that
'drop' can take, and deal with them in the same way. This is
currently true for its only option -q.
Signed-off-by: Thomas Rast <trast@student.ethz.ch> Acked-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t8003: check exit code of command and error message separately
Shell reports exit status only from the most downstream command
in a pipeline. In these tests, we want to make sure that the
command fails in a controlled way, and produces a correct error
message.
This issue was known by Jay who submitted the patch, and also was
pointed out by Hannes during the review process, but I forgot to
fix it up before applying. Sorry about that.
blame would segv if given -L <lineno> with <lineno> past the end of the file.
While we're fixing the bug, add test cases for an invalid <start> when called
as -L <start>,<end> or -L<start>.
Signed-off-by: Jay Soffian <jaysoffian@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'bg/maint-add-all-doc' into maint-1.6.5
* bg/maint-add-all-doc:
git-rm doc: Describe how to sync index & work tree
git-add/rm doc: Consistently back-quote
Documentation: 'git add -A' can remove files
Caught by valgrind in t5500, but it is pretty obvious from
reading the code that this is shifting elements of an array
to the left, which needs memmove.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint-1.6.4:
Fix mis-backport of t7002
base85: Make the code more obvious instead of explaining the non-obvious
base85: encode_85() does not use the decode table
base85 debug code: Fix length byte calculation
checkout -m: do not try to fall back to --merge from an unborn branch
branch: die explicitly why when calling "git branch [-a|-r] branchname".
textconv: stop leaking file descriptors
commit: --cleanup is a message option
git count-objects: handle packs bigger than 4G
t7102: make the test fail if one of its check fails
* maint-1.6.3:
base85: Make the code more obvious instead of explaining the non-obvious
base85: encode_85() does not use the decode table
base85 debug code: Fix length byte calculation
checkout -m: do not try to fall back to --merge from an unborn branch
branch: die explicitly why when calling "git branch [-a|-r] branchname".
textconv: stop leaking file descriptors
commit: --cleanup is a message option
git count-objects: handle packs bigger than 4G
t7102: make the test fail if one of its check fails
* maint-1.6.2:
base85: Make the code more obvious instead of explaining the non-obvious
base85: encode_85() does not use the decode table
base85 debug code: Fix length byte calculation
checkout -m: do not try to fall back to --merge from an unborn branch
branch: die explicitly why when calling "git branch [-a|-r] branchname".
textconv: stop leaking file descriptors
commit: --cleanup is a message option
git count-objects: handle packs bigger than 4G
t7102: make the test fail if one of its check fails
The original patch that became cfe370c (grep: do not segfault when -f is
used, 2009-10-16), was made against "maint" or newer branch back then, but
the fix addressed the issue that was present as far as in 1.6.4 series.
The maintainer backported the patch to the 1.6.4 maintenance branch, but
failed to notice that the new tests assumed the setup done by the script
in "maint", which did quite a lot more than the same test script in 1.6.4
series, and the output didn't match the expected result.
Internally "git grep" runs regexec(3) that expects its input string
to be NUL terminated. When searching inside blob data, read_sha1_file()
automatically gives such a buffer, but builtin-grep.c forgot to put
the NUL at the end, even though it allocated enough space for it.
Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
If you tried to export the official git repository, and then to import it
back then git-fast-import would die complaining that "Mark :1 not a commit".
Accordingly to a generated crash file, Mark 1 is not a commit but a blob,
which is pointed by junio-gpg-pub tag. Because git-tag allows to create such
tags, git-fast-import should import them.
Signed-off-by: Dmitry Potapov <dpotapov@gmail.com> Acked-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint-1.6.1:
base85: Make the code more obvious instead of explaining the non-obvious
base85: encode_85() does not use the decode table
base85 debug code: Fix length byte calculation
checkout -m: do not try to fall back to --merge from an unborn branch
branch: die explicitly why when calling "git branch [-a|-r] branchname".
textconv: stop leaking file descriptors
commit: --cleanup is a message option
git count-objects: handle packs bigger than 4G
t7102: make the test fail if one of its check fails
* maint-1.6.0:
base85: Make the code more obvious instead of explaining the non-obvious
base85: encode_85() does not use the decode table
base85 debug code: Fix length byte calculation
checkout -m: do not try to fall back to --merge from an unborn branch
branch: die explicitly why when calling "git branch [-a|-r] branchname".
git-rm doc: Describe how to sync index & work tree
Newcomers to git that want to remove from the index only the
files that have disappeared from the working tree will probably
look for a way to do that in the documentation for 'git rm'.
Therefore, describe how that can be done (even though it involves
other commands than 'git rm'). Based on a suggestion by Junio,
but re-arranged and rewritten to better fit into the style of
command reference.
While at it, change a single occurrence of "work tree" to "working
tree" for consistency.
Signed-off-by: Björn Gustavsson <bgustavsson@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
bash completion: factor submodules into dirty state
In the implementation of GIT_PS1_SHOWDIRTYSTATE in 738a94a (bash:
offer to show (un)staged changes, 2009-02-03), I cut&pasted the
git-diff invocations from dirty-worktree checks elsewhere, carrying
along the --ignore-submodules option.
As pointed out by Kevin Ballard, this doesn't really make sense: to
the _user_, a changed submodule counts towards uncommitted changes.
Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit 952dfc6 tried to tighten the safety valves for doing
a "reset --hard" in a bare repository or outside the work
tree, but accidentally broke the case for GIT_WORK_TREE.
This patch unbreaks it.
Most git commands which need a work tree simply use
NEED_WORK_TREE in git.c to die before they get to their
cmd_* function. Reset, however, only needs a work tree in
some cases, and so must handle the work tree itself. The
error that 952dfc6 made was to simply forbid certain
operations if the work tree was not set up; instead, we need
to do the same thing that NEED_WORK_TREE does, which is to
call setup_work_tree(). We no longer have to worry about dying
in the non-worktree case, as setup_work_tree handles that
for us.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
In the usage message for "git commit", the --cleanup option appeared
at the end, as one of the "contents options":
usage: git commit [options] [--] <filepattern>...
...
Commit message options
...
Commit contents options
...
--allow-empty ok to record an empty change
--cleanup <default> how to strip spaces and #comments from message
This is confusing, in part because it makes it ambiguous whether
--allow-empty, just above, refers to an empty diff or an empty message.
Move --cleanup into the 'message options' group. Also add a pair of
comments to prevent similar oversights in the future.
Signed-off-by: Greg Price <price@ksplice.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Prevent git blame from segfaulting on a missing author name
The human-readable author and committer name can be missing from
commits imported from foreign SCM interfaces. Make sure we parse
the "author" and "committer" line a bit more leniently and avoid
segfaulting by assuming the name always exists.
Signed-off-by: David Reiss <dreiss@facebook.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
rebase -i: abort cleanly if the editor fails to launch
If the user's configured editor is emacsclient, the editor
will fail to launch if emacs is not running and the git
command that tried to lanuch the editor will abort. For most
commands, all you have to do is to start emacs and repeat
the command.
The "git rebase -i" command, however, aborts without cleaning
the "$GIT_DIR/rebase-merge" directory if it fails to launch the
editor, so you'll need to do "git rebase --abort" before
repeating the rebase command.
Change "git rebase -i" to terminate using "die_abort" (instead of
with "die") if the initial launch of the editor fails.
Signed-off-by: Björn Gustavsson <bgustavsson@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
worktree: don't segfault with an absolute pathspec without a work tree
If a command is run with an absolute path as a pathspec inside a bare
repository, e.g. "rev-list HEAD -- /home", the code tried to run strlen()
on NULL, which is the result of get_git_work_tree(), and segfaulted. It
should just fail instead.
Currently the function returns NULL even inside .git/ in a repository
with a work tree, but that is a separate issue.
When parsing the config file, if there is a value that is
syntactically correct but unused, we generally ignore it.
This lets non-core porcelains store arbitrary information in
the config file, and it means that configuration files can
be shared between new and old versions of git (the old
versions might simply ignore certain configuration).
The one exception to this is color configuration; if we
encounter a color.{diff,branch,status}.$slot variable, we
die if it is not one of the recognized slots (presumably as
a safety valve for user misconfiguration). This behavior
has existed since 801235c (diff --color: use
$GIT_DIR/config, 2006-06-24), but hasn't yet caused a
problem. No porcelain has wanted to store extra colors, and
we once a color area (like color.diff) has been introduced,
we've never changed the set of color slots.
However, that changed recently with the addition of
color.diff.func. Now a user with color.diff.func in their
config can no longer freely switch between v1.6.6 and older
versions; the old versions will complain about the existence
of the variable.
This patch loosens the check to match the rest of
git-config; unknown color slots are simply ignored. This
doesn't fix this particular problem, as the older version
(without this patch) is the problem, but it at least
prevents it from happening again in the future.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
help.autocorrect: do not run a command if the command given is junk
If a given command is not found, then help.c tries to guess which one the
user could have meant. If help.autocorrect is 0 or unset, then a list of
suggestions is given as long as the dissimilarity between the given command
and the candidates is not excessively high. But if help.autocorrect was
non-zero (i.e., a delay after which the command is run automatically), the
latter restriction on dissimilarity was not obeyed.
In my case, this happened:
$ git ..daab02
WARNING: You called a Git command named '..daab02', which does not exist.
Continuing under the assumption that you meant 'read-tree'
in 4.0 seconds automatically...
The patch reuses the similarity limit that is also applied when the list of
suggested commands is printed.
Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The fast-forward logic is never being triggered because $common and
$MRC are never equivalent. $common is initialized to a commit id by
merge-base and MRC is initialized to HEAD. Fix this by initializing
$MRC to the commit id for HEAD so that its possible for $MRC and
$common to be equal.
Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Its not very easy to understand what heads are being merged given
the current output of an octopus merge. Fix this by replacing the
sha1 with the (usually) better description in GITHEAD_<SHA1>.
Suggested-by: Jari Aalto <jari.aalto@cante.net> Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Giving --format from the command line, or using output file extention to
DWIM the output format, with a pathspec that is disambiguated with an
explicit double-dash on the command line, e.g.
git archive -o file --format=zip HEAD -- path
git archive -o file.zip HEAD -- path
didn't work correctly.
This was because the code reordered (when one was given) or added (when
the format was inferred) a --format argument at the end, effectively
making it to "archive HEAD -- path --format=zip", i.e. an extra pathspec
that is unlikely to match anything.
The command line argument list should always be "options, revs and then
paths", and we should set a good example by inserting the --format at the
beginning instead.
Reported-by: Ilari Liusvaara <ilari.liusvaara@elisanet.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'mm/maint-merge-ff-error-message-fix' into maint
* mm/maint-merge-ff-error-message-fix:
builtin-merge: show user-friendly error messages for fast-forward too.
merge-recursive: make the error-message generation an extern function
Commit 24ab81a fixed the deletion of empty files, but broke
deletion of non-empty files. The approach it took was to
factor out the "deleted" line from the patch header into its
own hunk, the same way we do for mode changes. However,
unlike mode changes, we only showed the special "delete this
file" hunk if there were no other hunks. Otherwise, the user
would annoyingly be presented with _two_ hunks: one for
deleting the file and one for deleting the content.
This meant that in the non-empty case, we forgot about the
deleted line entirely, and we submitted a bogus patch to
git-apply (with "/dev/null" as the destination file, but not
marked as a deletion).
Instead, this patch combines the file deletion hunk and the
content deletion hunk (if there is one) into a single
deletion hunk which is either staged or not.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The current documentation fails to mention that 'git add -A/--all' can
remove files as well as add them, and it also does not say anything about
filepatterns (whether they are allowed, mandatory, or optional). It is
also not clear what the similarities and differences to the -u option are.
Update the intro paragraph (as suggested by Junio, with some minor edits)
to make it clear that 'git add' is able to delete and to also cover the -p
option.
Reword the description of -u to make it clearer (based on Björn
Steinbrink's suggestion).
Simplify the description of -A by saying "Like -u" and then describe the
differences (based on the suggestions by Björn Steinbrink and Junio).
Signed-off-by: Björn Gustavsson <bgustavsson@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix diff -B/--dirstat miscounting of newly added contents
What used to happen is that diffcore_count_changes() simply ignored any
hashes in the destination that didn't match hashes in the source. EXCEPT
if the source hash didn't exist at all, in which case it would count _one_
destination hash that happened to have the "next" hash value. As a
consequence, newly added material was often undercounted, making output
from --dirstat and "complete rewrite" detection used by -B unrelialble.
This changes it so that:
- whenever it bypasses a destination hash (because it doesn't match a
source), it counts the bytes associated with that as "literal added"
- at the end (once we have used up all the source hashes), we do the same
thing with the remaining destination hashes.
- when hashes do match, and we use the difference in counts as a value,
we also use up that destination hash entry (the 'd++').
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The existing code checked to make sure we were not in a bare
repository when doing a hard reset. However, we should take
this one step further, and make sure we are in a worktree.
Otherwise, we can end up munging files inside of '.git'.
Furthermore, we should do the same check for --merge resets,
which have the same properties. Actually, a merge reset of
HEAD^ would already complain, since further down in the code
we want a worktree. However, it is nicer to check up-front;
then we are sure we cover all cases ("git reset --merge"
would run, even though it wasn't doing anything) and we can
give a more specific message.
Add tests to t7103 to cover these cases and some missing ones.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The --stringparam option is not available on older xmlto versions.
Instead, set man.base.url.for.relative.links via a .xsl file. Older
docbook versions will ignore this without causing grief to users of
older xmlto versions.
Signed-off-by: Todd Zullinger <tmz@pobox.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
rerere: don't segfault on failure to open rr-cache
The rr-cache directory should always exist if we are doing
garbage collection (earlier code paths check this
explicitly), but we may not necessarily succeed in opening
it (for example, due to permissions problems). In that case,
we should print an error message rather than simply
segfaulting.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'mm/maint-hint-failed-merge' into maint
* mm/maint-hint-failed-merge:
user-manual: Document that "git merge" doesn't like uncommited changes.
merge-recursive: point the user to commit when file would be overwritten.
Merge branch 'mm/config-pathname-tilde-expand' into maint
* mm/config-pathname-tilde-expand:
Documentation: avoid xmlto input error
expand_user_path: expand ~ to $HOME, not to the actual homedir.
Expand ~ and ~user in core.excludesfile, commit.template
Merge branch 'jk/maint-break-rename-reduce-memory' into maint
* jk/maint-break-rename-reduce-memory:
diffcore-rename: reduce memory footprint by freeing blob data early
diffcore-break: save cnt_data for other phases
diffcore-break: free filespec data as we go
Documentation: xmlto 0.0.18 does not know --stringparam
Newer DocBook stylesheets want man.base.url.for.relative.links
parameter set when formatting manpages with external references
to turn them into full URLs, and leave a helpful "you should
set this parameter" message in the output. Earlier we added
the MAN_BASE_URL make variable to specify the value for it.
When MAN_BASE_URL is not given, it ought to be safe to set the
parameter to empty; it would result in an empty leading path for
older stylesheets that ignore the parameter, and newer ones
would produce the same "relative URL" without the message.
Unfortunately, older xmlto (at least version 0.0.18 released in
early 2004 that comes with RHEL/CentOS 5) does not understand
the --stringparam command line option, so we cannot add the
parameter definition unconditionally to the command line. Work
it around by passing the parameter only when set.
If you do not have a suitable URL prefix, you can pass a quoted empty
string to it, like so:
Some ancient platforms do not have an extensive list of alternate names for
character encodings. For example, Solaris 7 and IRIX 6.5 do not know that
ISO-8859-1 is the same as ISO8859-1. Modern platforms do know this, so use
the older name.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
pull: clarify advice for the unconfigured error case
When pull --rebase fails because it cannot find what branch to
merge against, the error message implies we are trying to merge.
Say "rebase against" instead of "merge with" to avoid confusion.
The configuration suggested to remedy the situation uses a
confusing syntax, with variables specified in the dotted form
accepted by 'git config' but separated from their values by the
'=' delimiter used by config files. Since the user will have to
edit this output anyway, it is more helpful to provide a config
file snippet to paste into an editor and modify.
Signed-off-by: Jan Krüger <jk@jk.gs> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
merge: do not add standard message when message is given with -m option
Even if the user explicitly gave her own message to "git merge", the
command still added its standard merge message. It resulted in a
useless repetition like this:
% git merge -m "Merge early part of side branch" `git rev-parse side~2`
% git show -s
commit 37217141e7519629353738d5e4e677a15096206f
Merge: e68e646a1d2374
Author: しらいし ななこ <nanako3@lavabit.com>
Date: Wed Dec 2 14:33:20 2009 +0900
The gave her own message because she didn't want git to add the
standard message (if she wanted to, she wouldn't have given one,
or she would have prepared it using git-fmt-merge-msg command).
Do not misidentify "git merge foo HEAD" as an old-style invocation
This was misinterpreted as an ancient style "git merge <message> HEAD
<commit> <commit>..." that merges one (or more) <commit> into the current
branch and record the resulting commit with the given message. Then a
later sanity check found that there is no <commit> specified and gave
a usage message.
Tested-by: Nanako Shiraishi <nanako3@lavabit.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Although 'git help' actually doesn't need to be run inside a git
repository and uses no repository-specific information, it looks for a git
directory. Searching for a git directory can be annoying in auto-mount
environments. With this commit, 'git help' no longer searches for a
repository when run without any options.
7c3baa9 originally modified 'git help -a' to not require a repository.
This applies the same fix for 'git help'.
Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin-merge: show user-friendly error messages for fast-forward too.
fadd069d03 (merge-recursive: give less scary messages when merge did not
start, Sep 7 2009) introduced some friendlier error message for merge
failure, but the messages were shown only for non-fast forward merges.
This patch uses the same for fast-forward.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
merge-recursive: make the error-message generation an extern function
The construction of the struct unpack_trees_error_msgs was done within
git_merge_trees(), which prevented using the same messages easily from
another function.
[jc: backported for 1.6.5 maint before advice_commit_before_merge]
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
We need to call exclude_cmds() after the loop, not during the loop, because
excluding a command from the array can change the indexes of objects in the
array. The result is that, depending on file ordering, some commands
weren't excluded as they should have been.
Signed-off-by: Avery Pennarun <apenwarr@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Ever since the initial implementation, "git am" had kept a dead code that
never triggered due to a typo in the variable name. Worse yet, the code,
if it weren't for the typo, would have attempted to add "[PATCH] " at the
beginning of the Subject: header when "git am" is run with its "-k"
option. However, because "git am -k" tells mailinfo to keep such prefix
when parsing the input, the "[PATCH] " added by this dead code would have
really been unnecessary duplicate.
Embarrassing is that we kept _maintaining_ the codepath without anybody
noticing for four years.