This patch enhances the tex funcname by adding support for
chapter and part sectioning commands. It also matches
the starred version of the sectioning commands.
Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Finds classes, records, functions, procedures, and sections. Most lines
need to start at the first column, or else there's no way to differentiate
a procedure's definition from its declaration.
Signed-off-by: Avery Pennarun <apenwarr@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin-name-rev.c: split deeply nested part from the main function
The main function of this command implementation tries to do too many
things. Split out a handling of single input line into a separate
function to reduce nesting level and clutter.
git-add -i ranges expect number-number. But for the supremely lazy, typing in
that second number when selecting "from patch 7 to the end" is wasted effort.
So treat an empty second number in a range as "until the last item".
Signed-off-by: Ciaran McCreesh <ciaran.mccreesh@googlemail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
When running git submodule update -i, the "-i" is shifted before recursing
into cmd_init and then again outside of the loop. This causes some /bin/sh
to complain about shifting when there are no arguments left (and would
discard anything written after -i too).
Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
sort_in_topological_order(): avoid setting a commit flag
We used to set the TOPOSORT flag of commits during the topological
sorting, but we can just as well use the member "indegree" for it:
indegree is now incremented by 1 in the cases where the commit used
to have the TOPOSORT flag.
This is the same behavior as before, since indegree could not be
non-zero when TOPOSORT was unset.
Incidentally, this fixes the bug in show-branch where the 8th column
was not shown: show-branch sorts the commits in topological order,
assuming that all the commit flags are available for show-branch's
private matters.
But this was not true: TOPOSORT was identical to the flag corresponding
to the 8th ref. So the flags for the 8th column were unset by the
topological sorting.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Propagate -u/--upload-pack option of "git clone" to transport.
The -u option to override the remote system's path to git-upload-pack was
being ignored by "git clone"; caused by a missing call to
transport_set_option to set TRANS_OPT_UPLOADPACK. Presumably this crept in
when git-clone was converted from shell to C.
Signed-off-by: Steve Haslam <shaslam@lastminute.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
A wildcard refspec is internally parsed into a refspec structure with src
and dst strings. Many parts of the code assumed that these do not include
the trailing "/*" when matching the wildcard pattern with an actual ref we
see at the remote. What this meant was that we needed to make sure not
just that the prefix matched, and also that a slash followed the part that
matched.
But a codepath that scans the result from ls-remote and finds matching
refs forgot to check the "matching part must be followed by a slash" rule.
This resulted in "refs/heads/b1" from the remote side to mistakenly match
the source side of "refs/heads/b/*:refs/remotes/b/*" refspec.
Worse, the refspec crafted internally by "git-clone", and a hardcoded
preparsed refspec that is used to implement "git-fetch --tags", violated
this "parsed widcard refspec does not end with slash" rule; simply adding
the "matching part must be followed by a slash" rule then would have
broken codepaths that use these refspecs.
This commit changes the rule to require a trailing slash to parsed
wildcard refspecs. IOW, "refs/heads/b/*:refs/remotes/b/*" is parsed as
src = "refs/heads/b/" and dst = "refs/remotes/b/". This allows us to
simplify the matching logic because we only need to do a prefixcmp() to
notice "refs/heads/b/one" matches and "refs/heads/b1" does not.
Acked-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
If a user passes "--template=", then our template parameter
is blank. Unfortunately, copy_templates() assumes it has at
least one character, and does all sorts of bad things like
reading from template[-1] and then proceeding to link all of
'/' into the .git directory.
This patch just checks for that condition in copy_templates
and aborts. As a side effect, this means that --template=
now has the meaning "don't copy any templates."
Allow "non-option" revision options in parse_option-enabled commands
Commands which use parse_options() but also call setup_revisions()
must do their parsing in a two step process:
1. first, they parse all options. Anything unknown goes to
parse_revision_opt() (which calls handle_revision_opt), which
may claim the option or say "I don't recognize this"
2. the non-option remainder goes to setup_revisions() to
actually get turned into revisions
Some revision options are "non-options" in that they must be
parsed in order with their revision counterparts in
setup_revisions(). For example, "--all" functions as a
pseudo-option expanding to all refs, and "--no-walk" affects refs
after it on the command line, but not before. The revision option
parser in step 1 recognizes such options and sets them aside for
later parsing by setup_revisions().
However, the return value used from handle_revision_opt indicated
"I didn't recognize this", which was wrong. It did, and it took
appropriate action (even though that action was just deferring it
for later parsing). Thus it should return "yes, I recognized
this."
Previously, these pseudo-options generated an error when used with
parse_options parsers (currently just blame and shortlog). With
this patch, they should work fine, enabling things like "git
shortlog --all".
Signed-off-by: Jeff King <peff@peff.net> Acked-By: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
We recently let the user know explicitly that an empty
commit message will abort the commit. However, this adds yet
another line to the template; let's rephrase and re-wrap so
that this fits back on two lines.
This patch also makes the "fatal: empty commit message?"
warning a bit less scary, since this is now a "feature"
instead of an error. However, we retain the non-zero exit
status to indicate to callers that nothing was committed.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
- Switching views now actually preserves the selected commit.
- Reloading (also Edit View) preserves the currently selected commit.
- Initial selection does not produce weird scrolling.
Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Arrange to kill diff-files & diff-index on quit
Local change analysis can take a noticeable amount of time on large
file sets, and produce no output if there are no changes. Register
the back-ends in commfd, so that they get properly killed on window
close.
Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
When collecting commits for a rarely changed, or recently
created file or directory, rev-list may work for a noticeable
period of time without producing any output. Such processes
don't receive SIGPIPE for a while after gitk is closed, thus
becoming runaway CPU hogs.
Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Make the DESCRIPTION match <x>... items in the SYNOPSIS
When the SYNOPSIS says e.g. "<path>...", it is nice if the DESCRIPTION
also mentions "<path>..." and says the specified "paths" (note plural)
are used for $whatever. This fixes the obvious mismatches.
Signed-off-by: Abhijit Menon-Sen <ams@toroid.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since version 1.5.6 "git bisect" doesn't use a "bisect" branch any
more, but the user manual had not been updated to reflect this.
So this patch does that and while at it also adds a few words about
"git bisect skip" and points user to the "git bisect" man page for
more information.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
OPT_INTEGER() works on an integer, not on an unsigned long. On a big
endian architecture with long larger than int, integer test gives bogus
results because of this bug.
Reported by H.Merijn Brand in HP-UX 64-bit environment.
When merging an early part of a branch, e.g. "git merge xyzzy~20", we were
supposed to say "branch 'xyzzy' (early part)", but it incorrectly said
"branch 'refs/heads/xy' (early part)" instead.
The logic was supposed to first strip away "~20" part to make sure that
what follows "~" is a non-zero posint, prefix it with "refs/heads/" and
ask resolve_ref() if it is a ref. If it is, then we know xyzzy was a
branch, and we can give the correct message.
However, there were a few bugs. First of all, the logic to build this
"true branch refname" did not count the characters correctly. At this
point of the code, "len" is the number of trailing, non-name part of the
given extended SHA-1 expression given by the user, i.e. number of bytes in
"~20" in the above example.
In addition, the message forgot to skip "refs/heads/" it prefixed from the
output.
git-merge-octopus: use (merge-base A (merge B C D E...)) for stepwise merge
Suppose you have this topology, and you are trying to make an octopus
across A, B and C (you are at C and merging A and B into your branch).
The protoccol between "git merge" and merge strategies is for the former
to pass common ancestor(s), '--' and then commits being merged.
git-merge-octopus does not produce the final merge in one-go. It
iteratively produces pairwise merges. So the first step might be to come
up with a merge between B and C:
and for that, "1" is used as the merge base, not because it is the base
across A, B and C but because it is the base between B and C. For this
merge, A does not matter.
I drew M in parentheses and lines between B and C to it in dotted line
because we actually do _not_ create a real commit --- the only thing we
need is a tree object, in order to proceed to the next step.
Then the final merge result is obtained by merging tree of (M) and A using
their common ancestor. For that, we _could_ still use "1" as the merge
base.
But if you imagine a case where you started from A and M, you would _not_
pick "1" as the merge base; you would rather use "2" which is a better
base for this merge.
That is why git-merge-octopus ignores the merge base given by "merge" but
computes its own.
The comment at the end of git-merge-octopus talks about "merge reference
commit", that we used to update it to common found in this round, and that
that updating was pointless. After the first round of merge to produce
the tree for M (but without actually creating the commit object M itself),
in order to figure out the merge base used to merge that with A in the
second round, we used to use A and "1" (which was merge base between B and
C). That was pointless --- "merge-base A 1" is guaranteed to give a base
that is no better than either "merge-base A B" or "merge-base A C". So
the current code keeps using the original head (iow, MRC=C, because in
this case we are starting from C and merging B and then A into it).
This trickerly was necessary only because we avoided creating the extra
merge commit object M.
Side note. An alternative implementation could have been to
actually record it as a real merge commit M, and then let the
two-commit merge-base compute the base between A and M when
merging A to the result of the previous round, but we avoided
creating M, at the expense of potentially using suboptimal base in
the later rounds.
But we do not have to be that pessimistic. We can instead accumulate the
commits we have merged so far in MRC, and have merge_bases_many() compute
the merge base for the new head being merged and the heads we have
processed so far, which can give a better base than what we currently do.
* git://repo.or.cz/git-gui:
git-gui (Windows): Change wrapper to execdir 'libexec/git-core'
git-gui (Windows): Switch to relative discovery of oguilib
git-gui: Correct installation of library to be $prefix/share
git-gui: Fix gitk search in $PATH to work on Windows
git-gui: Preserve scroll position on reshow_diff.
git-gui: Fix the Remote menu separator.
archive: allow --exec and --remote without equal sign
Convert git archive to parse_options(). The parameters --remote and --exec
are still handled by their special parser. Define them anyway in order for
them to show up in the usage notice.
Note: in a command like "git archive --prefix --remote=a/ HEAD", the string
"--remote=a/" will be interpreted as a remote option, not a prefix, because
that special parser sees it first. If one needs such a strange prefix, it
needs to be specified like this: "git archive --prefix=--remote=a/ HEAD"
(with an equal sign).
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Teach gitlinks to ie_modified() and ce_modified_check_fs()
The ie_modified() function is the workhorse for refresh_cache_entry(),
i.e. checking if an index entry that is stat-dirty actually has changes.
After running quicker check to compare cached stat information with
results from the latest lstat(2) to answer "has modification" early, the
code goes on to check if there really is a change by comparing the staged
data with what is on the filesystem by asking ce_modified_check_fs().
However, this function always said "no change" for any gitlinks that has a
directory at the corresponding path. This made ie_modified() to miss
actual changes in the subproject.
The patch fixes this first by modifying an existing short-circuit logic
before calling the ce_modified_check_fs() function. It knows that for any
filesystem entity to which ie_match_stat() says its data has changed, if
its cached size is nonzero then the contents cannot match, which is a
correct optimization only for blob objects. We teach gitlink objects to
this special case, as we already know that any gitlink that
ie_match_stat() says is modified is indeed modified at this point in the
codepath.
With the above change, we could leave ce_modified_check_fs() broken, but
it also futureproofs the code by teaching it to use ce_compare_gitlink(),
instead of assuming (incorrectly) that any directory is unchanged.
format-patch: Produce better output with --inline or --attach
This patch makes two small changes to improve the output of --inline
and --attach.
The first is to write a newline preceding the boundary. This is needed because
MIME defines the encapsulation boundary as including the preceding CRLF (or in
this case, just LF), so we should be writing one. Without this, the last
newline in the pre-diff content is consumed instead.
The second change is to always write the line termination character
(default: newline) even when using --inline or --attach. This is simply to
improve the aesthetics of the resulting message. When using --inline an email
client should render the resulting message identically to the non-inline
version. And when using --attach this adds a blank line preceding the
attachment in the email, which is visually attractive.
Signed-off-by: Kevin Ballard <kevin@sb.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-svnimport is no longer supported, so don't mention it in the
documentation. This also updates the description, removing the
historical discussion, since it mostly dealt with how it differed from
svnimport. The new description gives some starting points into the
rest of the documentation.
Noticed by Jurko Gospodnetić <jurko.gospodnetic@docte.hr>
Signed-off-by: Brian Gernhardt <benji@silverinsanity.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
merge-base: teach "git merge-base" to drive underlying merge_bases_many()
Even though the underlying function for get_merge_bases() can compute
a merge base between one existing commit and another (possibly
nonexistent) commit that would be created by merging many commits,
the facility was not available to git-merge-base.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-gui (Windows): Change wrapper to execdir 'libexec/git-core'
git-gui needs bindir in PATH to be able to run 'git'. bindir
however is not necessarily in PATH if started directly through a
Windows shortcut. Therefore, we used to add the directory
git-gui is located in. But with the new 'libexec/git-core'
layout this directory is no longer identical to bindir.
This commit modifies the wrapper script to discover the bindir
and add it to PATH.
Signed-off-by: Steffen Prohaska <prohaska@zib.de> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
git-gui (Windows): Switch to relative discovery of oguilib
Instead of using an absolute path, git-gui can discover its
gui library using a relative path from execdir. We want to
use the relative path discovery on MinGW to avoid issues
with translation of absolute paths.
Signed-off-by: Steffen Prohaska <prohaska@zib.de> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
git-gui: Correct installation of library to be $prefix/share
We always wanted the library for git-gui to install into the
$prefix/share directory, not $prefix/libexec/share. All of
the files in our library are platform independent and may
be reused across systems, like any other content stored in
the share directory.
Our computation of where our library should install to was broken
when git itself started installing to $prefix/libexec/git-core,
which was one level down from where we expected it to be.
Signed-off-by: Steffen Prohaska <prohaska@zib.de> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
git-gui: Fix gitk search in $PATH to work on Windows
Back in 15430be5a1 ("Look for gitk in $PATH, not $LIBEXEC/git-core")
git-gui learned to use [_which gitk] to locate where gitk's script
is as Git 1.6 will install gitk to $prefix/bin (in $PATH) and all
of the other tools are in $gitexecdir.
This failed on Windows because _which adds the ".exe" suffix as it
searches for the program on $PATH, under the assumption that we can
only execute something from Tcl if it is a proper Windows executable.
When scanning for gitk on Windows we need to omit the ".exe" suffix.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
A new configuration variable 'core.trustctime' is introduced to
allow ignoring st_ctime information when checking if paths
in the working tree has changed, because there are situations where
it produces too much false positives. Like when file system crawlers
keep changing it when scanning and using the ctime for marking scanned
files.
The default is to notice ctime changes.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
merge-base: die with an error message if not passed a commit ref
Before this patch "git merge-base" just exited with error code 1
and without an error message in case it was passed a ref to an
object that is not a commit (for example a tree).
This patch makes it "die" in this case with an error message.
While at it, this patch also refactors the code to get the
commit reference from an argument into a new
"get_commit_reference" function.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The test assumed that we can keep the cached stat information fresh across
rename(2); many filesystems however update st_ctime (and POSIX allows them
to do so), and that assumption does not hold.
We can explicitly refresh the index for the purpose of these tests. The
only thing we are interested in is the staged contents and the mode bits
are preserved across "git mv".
prepare_git_cmd(const char **argv) adds a first entry "git" to
the array argv. The new array is allocated on the heap. It's
the caller's responsibility to release it with free(). The code
was already present in execv_git_cmd() but could not be used from
outside. Now it can also be called for preparing the command list
in the MinGW codepath in run-command.c.
Signed-off-by: Steffen Prohaska <prohaska@zib.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
ls-tree documentation: enhance notes on subdirectory and pathspec behaviour
When run in a working copy subdirectory, git-ls-tree will automagically
add the prefix to the pathspec, which can result in an unexpected behavior
when the tree object accessed is not the root tree object.
In an earlier commit c70a8d9 (Makefile: Do not install a copy of 'git' in
$(gitexecdir), 2008-07-21), we tried to avoid installing two git, one in
/usr/bin/git and the other in /usr/libexec/git-core/git. It mistakenly
removed the only copy of git when gitexecdir and bindir are set to the
same directory, i.e. the traditional layout.
This is a follow-up patch to 49fa65a (Allow the built-in exec path to be
relative to the command invocation path, 2008-07-23). Without specific
gitexecdir passed from the command line, git-gui's build procedure would
try to figure out the value for it by running an installed git.
If a user passes "--template=", then our template parameter
is blank. Unfortunately, copy_templates() assumes it has at
least one character, and does all sorts of bad things like
reading from template[-1] and then proceeding to link all of
'/' into the .git directory.
This patch just checks for that condition in copy_templates
and aborts. As a side effect, this means that --template=
now has the meaning "don't copy any templates."
The rewrite of git-mv from a shell script to a builtin was perhaps
a little too straightforward: the git add and git rm queues were
emulated directly, which resulted in a rather complicated code and
caused an inconsistent behaviour when moving dirty index entries;
git mv would update the entry based on working tree state,
except in case of overwrites, where the new entry would still have
sha1 of the old file.
This patch introduces rename_index_entry_at() into the index toolkit,
which will rename an entry while removing any entries the new entry
might render duplicate. This is then used in git mv instead
of all the file queues, resulting in a major simplification
of the code and an inevitable change in git mv -n output format.
Also the code used to refuse renaming overwriting symlink with a regular
file and vice versa; there is no need for that.
A few new tests have been added to the testsuite to reflect this change.
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The path list builder had a branch for the case the source is not in index, but
this can happen only if the source was a directory. However, in that case we
have already expanded the list to the directory contents and set mode
to WORKING_DIRECTORY, which is tested earlier.
The patch removes the superfluous branch and adds an assert() instead. git-mv
testsuite still passes.
Signed-off-by: Petr Baudis <pasky@suse.cz> Signed-off-by: Junio C Hamano <gitster@pobox.com>
fsck: Don't require tmp_obj_ file names are 14 bytes in length
Not all temporary file creation routines will ensure 14 bytes are
used to generate the temporary file name. In C Git this may be
true, but alternate implementations such as jgit are not always
able to generate a temporary file name with a specific prefix and
also ensure the file name length is 14 bytes long.
Since temporary files in a directory we are fsck'ing should be
uncommon (as they are short lived only long enough for an active
writer to finish writing the file and rename it) we shouldn't see
these show up very often. Always using a prefixcmp() call and
ignoring the length opens up room for other implementations to use
different name generation schemes.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The function list_commands_in_dir() tried to be lazy and just chdir()
to the directory which entries it listed, so that the check if the
file is executable could be done on dir->d_name.
However, there is no good reason to jump around wildly just to find
all Git commands.
Instead, have a strbuf and construct the full path dynamically.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
After the optimization to --[no-]merged logic, the calculation of the
width of the longest refname to be shown might become inaccurate (since
the matching against merge_filter is performed after adding refs to
ref_list). This patch forces a recalculation of maxwidth when it might
be needed.
Signed-off-by: Lars Hjemli <hjemli@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
A wildcard refspec is internally parsed into a refspec structure with src
and dst strings. Many parts of the code assumed that these do not include
the trailing "/*" when matching the wildcard pattern with an actual ref we
see at the remote. What this meant was that we needed to make sure not
just that the prefix matched, and also that a slash followed the part that
matched.
But a codepath that scans the result from ls-remote and finds matching
refs forgot to check the "matching part must be followed by a slash" rule.
This resulted in "refs/heads/b1" from the remote side to mistakenly match
the source side of "refs/heads/b/*:refs/remotes/b/*" refspec.
Worse, the refspec crafted internally by "git-clone", and a hardcoded
preparsed refspec that is used to implement "git-fetch --tags", violated
this "parsed widcard refspec does not end with slash" rule; simply adding
the "matching part must be followed by a slash" rule then would have
broken codepaths that use these refspecs.
This commit changes the rule to require a trailing slash to parsed
wildcard refspecs. IOW, "refs/heads/b/*:refs/remotes/b/*" is parsed as
src = "refs/heads/b/" and dst = "refs/remotes/b/". This allows us to
simplify the matching logic because we only need to do a prefixcmp() to
notice "refs/heads/b/one" matches and "refs/heads/b1" does not.
Acked-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t6030-bisect-porcelain.sh relies on "ls" exiting with nonzero
status when asked to list nonexistent files. Unfortunately,
/bin/ls on Mac OS X 10.3 exits with exit code 0. So look at
its output instead.
Signed-off-by: Jonathan Nieder <jrnieder@uchicago.edu> Acked-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* git://repo.or.cz/git-gui:
git-gui: "Stage Line": Treat independent changes in adjacent lines better
git-gui: Fix "Stage/Unstage Line" with one line of context.
git-gui: Correct 'Visualize Branches' on Mac OS X to start gitk
git-gui: Look for gitk in $PATH, not $LIBEXEC/git-core
Add a menu item to invoke full copy detection in blame.
Kill the blame back-end on window close.
Add options to control the search for copies in blame.
Fix pre-commit hooks under MinGW/MSYS
It is especially useful for Stage/Unstage Line, because
they invoke full state scan and diff reload, which originally
would reset the scroll position to the top of the file.
Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
git-gui: "Stage Line": Treat independent changes in adjacent lines better
Assume that we want to commit these states:
Old state == HEAD Intermediate state New state
--------------------------------------------------------
context before context before context before
old 1 new 1 new 1
old 2 old 2 new 2
context after context after context after
that is, want to commit two changes in this order:
1. transform "old 1" into "new 1"
2. transform "old 2" into "new 2"
[This discussion and this patch is about this very case and one other case
as outlined below; any other intermediate states that one could imagine are
not affected by this patch.]
Now assume further, that we have not staged and commited anything, but we
have already changed the working file to the new state. Then we will see
this hunk in the "Unstaged Changes":
@@ -1,4 +1,4 @@
context before
-old 1
-old 2
+new 1
+new 2
context after
The obvious way to stage the intermediate state is to apply "Stage This
Line" to "-old 1" and "+new 1". Unfortunately, this resulted in this
intermediate state:
context before
old 2
new 1
context after
which is not what we wanted. In fact, it was impossible to stage the
intermediate state using "Stage Line". The crux was that if a "+" line was
staged, then the "-" lines were converted to context lines and arranged
*before* the "+" line in the forged hunk that we fed to 'git apply'.
With this patch we now treat "+" lines that are staged differently. In
particular, the "-" lines before the "+" block are moved *after* the
staged "+" line. Now it is possible to get the correct intermediate state
by staging "-old 1" and "+new 1". Problem solved.
But there is a catch.
Noticing that we didn't get the right intermediate state by staging
"-old 1" and "+new 1", we could have had the idea to stage the complete
hunk and to *unstage* "-old 2" and "+new 2". But... the result is the same.
The reason is that there is the exact symmetric problem with unstaging the
last "-" and "+" line that are in adjacent blocks of "-" and "+" lines.
This patch does *not* change the way in which "-" lines are *unstaged*.
Why? Because if we did (i.e. move "+" lines before the "-" line after
converting them to context lines), then it would be impossible to stage
this intermediate state:
context before
old 1
new 2
context after
that is, it would be impossible to stage the two independet changes in the
opposite order.
Let's look at this case a bit further: The obvious way to get this
intermediate state would be to apply "Stage This Line" to "-old 2" and
"+new 2". Before this patch, this worked as expected. With this patch, it
does not work as expected, but it can still be achieved by first staging
the entire hunk, then *unstaging* "-old 1" and "+new 1".
In summary, this patch makes a common case possible, at the expense that
a less common case is made more complicated for the user.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
git-gui: Fix "Stage/Unstage Line" with one line of context.
To "Stage/Unstage Line" we construct a patch that contains exactly one
change (either addition or removal); the hunk header was forged by counting
the old side and adjusting the count by +/-1 for the new side. But when we
counted the context we never counted the changed line itself. If the hunk
had only one removal line and one line of context, like this:
@@ -1,3 +1,2 @@
context 1
-removal
context 2
We had constructed this patch:
@@ -1,2 +1,1 @@
context 1
-removal
context 2
which does not apply because git apply deduces that it must apply at the
end of the file. ("context 2" is considered garbage and ignored.) The fix
is that removal lines must be counted towards the context of the old side.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Documentation: Improve documentation for git-imap-send(1)
Change the description to be similar to that used for git-send-email(1) to
give a better description of what the tool can be used for and sound more
user-friendly.
Document the configuration variables used by git-imap-send, split the
example into tunnel and direct examples. Rephrase other parts of the
git-imap-send documentation to use better grammar and to be clearer.
Signed-off-by: Robert Shearman <robertshearman@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The previous one sqeezed unnecessary whitespaces and joined function type
and name in the definition split across lines. This patch further fixes
many remaining style issues:
- We are not particularly fond of typedef to hide the underlying struct
definitions.
- Asterisk comes next variable, i.e. "type *var", not "type * var" nor
"type* var".
- Casting to pointer to a type is "(type *)", not "(type*)".
- An open brace comes on the same line as closing parenthesis of "if (...)"
condition; "else" comes on the same line as closing brace of its
corresponding "if (...) {".
- Avoid single liner "if (...) <stmt>;"; they should be on two separate
lines.
1. The pager is now the _child_ process, instead of the
parent. This means that whatever spawned git (e.g., the
shell) will see the exit code of the git process, and
not the pager.
2. The mingw and regular code are now unified, which makes
the setup_pager function much simpler.
There are two caveats:
1. We used to call execlp directly on the pager, followed
by trying to exec it via the shall. We now just use the
shell (which is what mingw has always done). This may
have different results for pager names which contain
shell metacharacters.
It is also slightly less efficient because we
unnecessarily run the shell; however, pager spawning is
by definition an interactive task, so it shouldn't be
a huge problem.
2. The git process will remain in memory while the user
looks through the pager. This is potentially wasteful.
We could get around this by turning the parent into a
meta-process which spawns _both_ git and the pager,
collects the exit status from git, waits for both to
end, and then exits with git's exit code.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is a function provided by the caller which is called
_after_ the process is forked, but before the spawned
program is executed. On platforms (like mingw) where
subprocesses are forked and executed in a single call, the
preexec callback is simply ignored.
This will be used in the following patch to do some setup
for 'less' that must happen in the forked child.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>