built-in add -p: show different prompts for mode changes and deletions
Just like the Perl version, we now helpfully ask the user whether they
want to stage a mode change, or a deletion.
Note that we define the prompts in an array, in preparation for a later
patch that changes those prompts to yet different versions for `git
reset -p`, `git stash -p` and `git checkout -p` (which all call the `git
add -p` machinery to do the actual work).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
built-in app -p: allow selecting a mode change as a "hunk"
This imitates the way the Perl version treats mode changes: it offers
the mode change up for the user to decide, as if it was a diff hunk.
In contrast to the Perl version, we make use of the fact that the mode
line is the first hunk, and explicitly strip out that line from the diff
header if that "hunk" was not selected to be applied, and skipping that
hunk while coalescing the diff. The Perl version plays some kind of diff
line lego instead.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This addresses the same problem as 24ab81ae4d (add-interactive: handle
deletion of empty files, 2009-10-27), although in a different way: we
not only stick the "deleted file" line into its own pseudo hunk, but
also the entire remainder (if any) of the same diff.
That way, we do not have to play any funny games with regards to
coalescing the diff after the user selected what (possibly pseudo-)hunks
to stage.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
When skipping a hunk that adds a different number of lines than it
removes, we need to adjust the subsequent hunk headers of non-skipped
hunks: in pathological cases, the context is not enough to determine
precisely where the patch should be applied.
This problem was identified in 23fea4c240 (t3701: add failing test for
pathological context lines, 2018-03-01) and fixed in the Perl version in fecc6f3a68 (add -p: adjust offsets of subsequent hunks when one is
skipped, 2018-03-01).
And this patch fixes it in the C version of `git add -p`.
In contrast to the Perl version, we try to keep the extra text on the
hunk header (which typically contains the signature of the function
whose code is changed in the hunk) intact.
Note: while the C version does not support staging mode changes at this
stage, we already prepare for this by simply skipping the hunk header if
both old and new offset is 0 (this cannot happen for regular hunks, and
we will use this as an indicator that we are looking at a special hunk).
Likewise, we already prepare for hunk splitting by handling the absence
of extra text in the hunk header gracefully: only the first split hunk
will have that text, the others will not (indicated by an empty extra
text start/end range). Preparing for hunk splitting already at this
stage avoids an indentation change of the entire hunk header-printing
block later, and is almost as easy to review as without that handling.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Just like the Perl version, we now generate two diffs if `color.diff` is
set: one with and one without color. Then we parse them in parallel and
record which hunks start at which offsets in both.
Note that this is a (slight) deviation from the way the Perl version did
it: we are no longer reading the output of `diff-files` line by line
(which is more natural for Perl than for C), but in one go, and parse
everything later, so we might just as well do it in synchrony.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
built-in add -i: wire up the new C code for the `patch` command
The code in `git-add--interactive.perl` that takes care of the `patch`
command can look quite intimidating. There are so many modes in which it
can be called, for example.
But for the `patch` command in `git add -i`, only one mode is relevant:
the `stage` mode. And we just implemented the beginnings of that mode in
C so far. So let's use it when `add.interactive.useBuiltin=true`.
Now, while the code in `add-patch.c` is far from reaching feature parity
with the code in `git-add--interactive.perl` (color is not implemented,
the diff algorithm cannot be configured, the colored diff cannot be
post-processed via `interactive.diffFilter`, many commands are
unimplemented yet, etc), hooking it all up with the part of `git add -i`
that is already converted to C makes it easier to test and develop it.
Note: at this stage, both the `add.interactive.useBuiltin` config
setting is still safely opt-in, and will probably be fore quite some
time, to allow for thorough testing "in the wild" without adversely
affecting existing users.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
built-in add -i: start implementing the `patch` functionality in C
In the previous steps, we re-implemented the main loop of `git add -i`
in C, and most of the commands.
Notably, we left out the actual functionality of `patch`, as the
relevant code makes up more than half of `git-add--interactive.perl`,
and is actually pretty independent of the rest of the commands.
With this commit, we start to tackle that `patch` part. For better
separation of concerns, we keep the code in a separate file,
`add-patch.c`. The new code is still guarded behind the
`add.interactive.useBuiltin` config setting, and for the moment,
it can only be called via `git add -p`.
The actual functionality follows the original implementation of 5cde71d64aff (git-add --interactive, 2006-12-10), but not too closely
(for example, we use string offsets rather than copying strings around,
and after seeing whether the `k` and `j` commands are applicable, in the
C version we remember which previous/next hunk was undecided, and use it
rather than looking again when the user asked to jump).
As a further deviation from that commit, We also use a comma instead of
a slash to separate the available commands in the prompt, as the current
version of the Perl script does this, and we also add a line about the
question mark ("print help") to the help text.
While it is tempting to use this conversion of `git add -p` as an excuse
to work on `apply_all_patches()` so that it does _not_ want to read a
file from `stdin` or from a file, but accepts, say, an `strbuf` instead,
we will refrain from this particular rabbit hole at this stage.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Ed Maste [Fri, 13 Dec 2019 17:55:35 +0000 (17:55 +0000)]
userdiff: remove empty subexpression from elixir regex
The regex failed to compile on FreeBSD.
Also add /* -- */ mark to separate the two regex entries given to
the PATTERNS() macro, to make it consistent with patterns for other
content types.
Signed-off-by: Ed Maste <emaste@FreeBSD.org> Reviewed-by: Jeff King <peff@peff.net> Helped-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jean-Noël Avila [Thu, 12 Dec 2019 20:46:54 +0000 (21:46 +0100)]
doc: remove non pure ASCII characters
Non ASCII characters may be handled by publishing chains, but right
now, nothing indicates the encoding of files. Moreover, non ASCII
source strings upset the localization toolchain.
Signed-off-by: Jean-Noël Avila <jn.avila@free.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Derrick Stolee [Fri, 13 Dec 2019 18:09:53 +0000 (18:09 +0000)]
sparse-checkout: respect core.ignoreCase in cone mode
When a user uses the sparse-checkout feature in cone mode, they
add patterns using "git sparse-checkout set <dir1> <dir2> ..."
or by using "--stdin" to provide the directories line-by-line over
stdin. This behaviour naturally looks a lot like the way a user
would type "git add <dir1> <dir2> ..."
If core.ignoreCase is enabled, then "git add" will match the input
using a case-insensitive match. Do the same for the sparse-checkout
feature.
Perform case-insensitive checks while updating the skip-worktree
bits during unpack_trees(). This is done by changing the hash
algorithm and hashmap comparison methods to optionally use case-
insensitive methods.
When this is enabled, there is a small performance cost in the
hashing algorithm. To tease out the worst possible case, the
following was run on a repo with a deep directory structure:
git ls-tree -d -r --name-only HEAD |
git sparse-checkout set --stdin
The 'set' command was timed with core.ignoreCase disabled or
enabled. For the repo with a deep history, the numbers were
Now, this is not an entirely fair comparison, as most users
will define their sparse cone using more shallow directories,
and the performance improvement from eb42feca97 ("unpack-trees:
hash less in cone mode" 2019-11-21) can remove most of the
hash cost. For a more realistic test, drop the "-r" from the
ls-tree command to store only the first-level directories.
In that case, the Linux kernel repository takes 0.2-0.25s in
each case, and the deep repository takes one second, plus or
minus 0.05s, in each case.
Thus, we _can_ demonstrate a cost to this change, but it is
unlikely to matter to any reasonable sparse-checkout cone.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Denton Liu [Thu, 12 Dec 2019 00:49:50 +0000 (16:49 -0800)]
notes: break set_display_notes() into smaller functions
In 8164c961e1 (format-patch: use --notes behavior for format.notes,
2019-12-09), we introduced set_display_notes() which was a monolithic
function with three mutually exclusive branches. Break the function up
into three small and simple functions that each are only responsible for
one task.
This family of functions accepts an `int *show_notes` instead of
returning a value suitable for assignment to `show_notes`. This is for
two reasons. First of all, this guarantees that the external
`show_notes` variable changes in lockstep with the
`struct display_notes_opt`. Second, this prompts future developers to be
careful about doing something meaningful with this value. In fact, a
NULL check is intentionally omitted because causing a segfault here
would tell the future developer that they are meant to use the value for
something meaningful.
One alternative was making the family of functions accept a
`struct rev_info *` instead of the `struct display_notes_opt *`, since
the former contains the `show_notes` field as well. This does not work
because we have to call git_config() before repo_init_revisions().
However, if we had a `struct rev_info`, we'd need to initialize it before
it gets assigned values from git_config(). As a result, we break the
circular dependency by having standalone `int show_notes` and
`struct display_notes_opt notes_opt` variables which temporarily hold
values from git_config() until the values are copied over to `rev`.
To implement this change, we need to get a pointer to
`rev_info::show_notes`. Unfortunately, this is not possible with
bitfields and only direct-assignment is possible. Change
`rev_info::show_notes` to a non-bitfield int so that we can get its
address.
Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Denton Liu [Thu, 12 Dec 2019 00:49:47 +0000 (16:49 -0800)]
config/format.txt: clarify behavior of multiple format.notes
In 8164c961e1 (format-patch: use --notes behavior for format.notes,
2019-12-09), we slightly tweaked the behavior of having multiple
`format.notes` configuration variables. We did not update the
documentation to reflect this, however.
Explictly state the behavior of having multiple `format.notes`
configuration variables so users are clear on what to expect.
Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Philippe Blain [Wed, 11 Dec 2019 04:15:56 +0000 (04:15 +0000)]
gitmodules: link to gitsubmodules guide
Presently in the manpages git-submodule[1] links to gitsubmodules[7]
and gitmodules[5], gitsubmodules[7] links to git-submodule[1] and gitmodules[5],
but gitmodules[5] only link to git-submodule[1] (and git-config[1]).
Add a link to gitsubmodules[7] in gitmodules[5], so that a person
stumbling upon gitmodules[5] can quickly access gitsubmodules[7],
which has a more high-level overview of submodule usage.
Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Wed, 11 Dec 2019 18:46:37 +0000 (19:46 +0100)]
remote: pass NULL to read_ref_full() because object ID is not needed
read_ref_full() wraps refs_read_ref_full(), which in turn wraps
refs_resolve_ref_unsafe(), which handles a NULL oid pointer of callers
not interested in the resolved object ID. Make use of that feature to
document that mv() is such a caller.
Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Wed, 11 Dec 2019 18:46:19 +0000 (19:46 +0100)]
refs: pass NULL to refs_read_ref_full() because object ID is not needed
refs_read_ref_full() wraps refs_resolve_ref_unsafe(), which handles a
NULL oid pointer of callers not interested in the resolved object ID.
Pass NULL from files_copy_or_rename_ref() to clarify that it is one
such caller.
Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Wed, 11 Dec 2019 17:50:02 +0000 (18:50 +0100)]
t4256: don't create unused file
The file "stdout" has been created by the test script since its initial
(and so far only) version added by 3aa4d81f88 (mailinfo: support
format=flowed, 2018-08-25), but has never been used. Get rid of it.
Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Elijah Newren [Tue, 10 Dec 2019 20:00:23 +0000 (20:00 +0000)]
dir: exit before wildcard fall-through if there is no wildcard
The DO_MATCH_LEADING_PATHSPEC had a fall-through case for if there was a
wildcard, noting that we don't yet have enough information to determine
if a further paths under the current directory might match due to the
presence of wildcards. But if we have no wildcards in our pathspec,
then we shouldn't get to that fall-through case.
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Elijah Newren [Tue, 10 Dec 2019 20:00:21 +0000 (20:00 +0000)]
Revert "dir.c: make 'git-status --ignored' work within leading directories"
Commit be8a84c52669 ("dir.c: make 'git-status --ignored' work within
leading directories", 2013-04-15) noted that
git status --ignored <SOMEPATH>
would not list ignored files and directories within <SOMEPATH> if
<SOMEPATH> was untracked, and modified the behavior to make it show
them. However, it did so via a hack that broke consistency; it would
show paths under <SOMEPATH> differently than a simple
git status --ignored | grep <SOMEPATH>
would show them. A correct fix is slightly more involved, and
complicated slightly by this hack, so we revert this commit (but keep
corrected versions of the testcases) and will later fix the original
bug with a subsequent patch.
Some history may be helpful:
A very, very similar case to the commit we are reverting was raised in
commit 48ffef966c76 ("ls-files: fix overeager pathspec optimization",
2010-01-08); but it actually went in somewhat the opposite direction. In
that commit, it mentioned how
git ls-files -o --exclude-standard t/
used to show untracked files under t/ even when t/ was ignored, and then
changed the behavior to stop showing untracked files under an ignored
directory. More importantly, this commit considered keeping this
behavior but noted that it would be inconsistent with the behavior when
multiple pathspecs were specified and thus rejected it.
The reason for this whole inconsistency when one pathspec is specified
versus zero or two is because common prefixes of pathspecs are sent
through a different set of checks (in treat_leading_path()) than normal
file/directory traversal (those go through read_directory_recursive()
and treat_path()). As such, for consistency, one needs to check that
both codepaths produce the same result.
Revert commit be8a84c526691667fc04a8241d93a3de1de298ab, except instead
of removing the testcase it added, modify it to check for correct and
consistent behavior. A subsequent patch in this series will fix the
testcase.
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Elijah Newren [Tue, 10 Dec 2019 20:00:20 +0000 (20:00 +0000)]
t3011: demonstrate directory traversal failures
Add several tests demonstrating directory traversal failures of various
sorts in dir.c (and one similar looking test that turns out to be a
git_fnmatch bug). A lot of these tests look like near duplicates of
each other, but an optimization path in dir.c to pre-descend into a
common prefix and the specialized treatment of trailing slashes in dir.c
mean the tiny differences are sometimes important and potentially cause
different codepaths to be explored.
Of the 7 failing tests, 2 are new to git-2.24.0 (tweaked by side effects
of the en/clean-nested-with-ignored-topic); the other 5 also failed
under git-2.23.0 and earlier.
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
r.burenkov [Wed, 11 Dec 2019 17:47:23 +0000 (09:47 -0800)]
git-p4: honor lfs.storage configuration variable
"git lfs" allows users to specify the custom storage location with
the configuration variable `lfs.storage`, but when interacting with
GitLFS pointers, "git p4" always uses the hardcoded default that is
the `.git/lfs/` directory, without paying attention to the
configuration.
Use the value configured in `lfs.storage`, if exists, as all the
"git" operations do, for consistency.
Signed-off-by: r.burenkov <panzercheg@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
In 5e82c3dd22a (bisect--helper: `bisect_reset` shell function in C,
2019-01-02), the `git bisect reset` subcommand was ported to C. When the
call to `git checkout` failed, an error message was reported to the
user.
However, this error message used the `strbuf` that had just been
released already. Let's switch that around: first use it, then release
it.
Mentored-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Tue, 10 Dec 2019 21:11:45 +0000 (13:11 -0800)]
Merge branch 'hi/gpg-use-check-signature'
Hide lower-level verify_signed-buffer() API as a pure helper to
implement the public check_signature() function, in order to
encourage new callers to use the correct and more strict
validation.
* hi/gpg-use-check-signature:
gpg-interface: prefer check_signature() for GPG verification
Junio C Hamano [Tue, 10 Dec 2019 21:11:43 +0000 (13:11 -0800)]
Merge branch 'ds/commit-graph-delay-gen-progress'
One kind of progress messages were always given during commit-graph
generation, instead of following the "if it takes more than two
seconds, show progress" pattern, which has been corrected.
* ds/commit-graph-delay-gen-progress:
commit-graph: use start_delayed_progress()
progress: create GIT_PROGRESS_DELAY
Junio C Hamano [Tue, 10 Dec 2019 21:11:43 +0000 (13:11 -0800)]
Merge branch 'jt/clone-recursesub-ref-advise'
The interaction between "git clone --recurse-submodules" and
alternate object store was ill-designed. The documentation and
code have been taught to make more clear recommendations when the
users see failures.
Junio C Hamano [Tue, 10 Dec 2019 21:11:42 +0000 (13:11 -0800)]
Merge branch 'dl/pretty-reference'
"git log" family learned "--pretty=reference" that gives the name
of a commit in the format that is often used to refer to it in log
messages.
* dl/pretty-reference:
SubmittingPatches: use `--pretty=reference`
pretty: implement 'reference' format
pretty: add struct cmt_fmt_map::default_date_mode_type
pretty: provide short date format
t4205: cover `git log --reflog -z` blindspot
pretty.c: inline initalize format_context
revision: make get_revision_mark() return const pointer
completion: complete `tformat:` pretty format
SubmittingPatches: remove dq from commit reference
pretty-formats.txt: use generic terms for hash
SubmittingPatches: use generic terms for hash
Junio C Hamano [Tue, 10 Dec 2019 21:11:42 +0000 (13:11 -0800)]
Merge branch 'js/mingw-inherit-only-std-handles'
Work around a issue where a FD that is left open when spawning a
child process and is kept open in the child can interfere with the
operation in the parent process on Windows.
* js/mingw-inherit-only-std-handles:
mingw: forbid translating ERROR_SUCCESS to an errno value
mingw: do set `errno` correctly when trying to restrict handle inheritance
mingw: restrict file handle inheritance only on Windows 7 and later
mingw: spawned processes need to inherit only standard handles
mingw: work around incorrect standard handles
mingw: demonstrate that all file handles are inherited by child processes
Junio C Hamano [Tue, 10 Dec 2019 21:11:40 +0000 (13:11 -0800)]
Merge branch 'am/pathspec-from-file'
A few commands learned to take the pathspec from the
standard input or a named file, instead of taking it as the command
line arguments.
* am/pathspec-from-file:
commit: support the --pathspec-from-file option
doc: commit: synchronize <pathspec> description
reset: support the `--pathspec-from-file` option
doc: reset: synchronize <pathspec> description
pathspec: add new function to parse file
parse-options.h: add new options `--pathspec-from-file`, `--pathspec-file-nul`
Junio C Hamano [Tue, 10 Dec 2019 21:11:41 +0000 (13:11 -0800)]
Merge branch 'ra/rebase-i-more-options'
"git rebase -i" learned a few options that are known by "git
rebase" proper.
* ra/rebase-i-more-options:
rebase -i: finishing touches to --reset-author-date
rebase: add --reset-author-date
rebase -i: support --ignore-date
sequencer: rename amend_author to author_to_rename
rebase -i: support --committer-date-is-author-date
sequencer: allow callers of read_author_script() to ignore fields
rebase -i: add --ignore-whitespace flag
Denton Liu [Mon, 9 Dec 2019 13:10:48 +0000 (05:10 -0800)]
format-patch: move git_config() before repo_init_revisions()
In 13cdf78094 (format-patch: teach format.notes config option,
2019-05-16), the order in which git_config() and repo_init_revisions()
were swapped so that `rev.notes_opt` would be initialized before
git_config() was called. This is problematic, however, as git_config()
should generally be called before repo_init_revisions().
Break this circular dependency by creating `show_notes` and `notes_opt`
which git_config() reads into. Then, copy these values over to
`rev.show_notes` and `rev.notes_opt` after repo_init_revisions() is
called.
Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Denton Liu [Mon, 9 Dec 2019 13:10:46 +0000 (05:10 -0800)]
format-patch: use --notes behavior for format.notes
When we had multiple `format.notes` config values where we had `<ref1>`,
`false`, `<ref2>` (in that order), then we would print out the notes for
both `<ref1>` and `<ref2>`. This doesn't make sense, however, since we
parse the config in a top-down manner and a `false` should be able to
override previous configurations, just like how `--no-notes` will
override previous `--notes`.
Duplicate the logic that handles the `--[no-]notes[=]` option to
`format.notes` for consistency. As a result, when parsing the config
from top to bottom, `format.notes = true` will behave like `--notes`,
`format.notes = <ref>` will behave like `--notes=<ref>` and
`format.notes = false` will behave like `--no-notes`.
This change isn't strictly backwards compatible but since it is an edge
case where a sane user would not mix notes refs with `false` and this
feature is relatively new (released only in v2.23.0), this change should
be harmless.
Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Denton Liu [Mon, 9 Dec 2019 13:10:44 +0000 (05:10 -0800)]
notes: extract logic into set_display_notes()
Instead of open coding the logic that tweaks the variables in
`struct display_notes_opt` within handle_revision_opt(), abstract away the
logic into set_display_notes() so that it can be reused.
Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Denton Liu [Mon, 9 Dec 2019 13:10:41 +0000 (05:10 -0800)]
notes: create init_display_notes() helper
We currently open code the initialization for revs->notes_opt. Abstract
this away into a helper function so that the logic can be reused in a
future commit.
This is slightly wasteful as we memset the struct twice but this is only
run once so it shouldn't have any major effect.
Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Denton Liu [Mon, 9 Dec 2019 13:10:39 +0000 (05:10 -0800)]
notes: rename to load_display_notes()
According to the function comment, init_display_notes() was supposed to
"Load the notes machinery for displaying several notes trees." Rename
this function to load_display_notes() so that its use is more accurately
represented.
This is done because, in a future commit, we will reuse the name
init_display_notes().
Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
SZEDER Gábor [Mon, 9 Dec 2019 11:52:58 +0000 (12:52 +0100)]
name-rev: cleanup name_ref()
Earlier patches in this series moved a couple of conditions from the
recursive name_rev() function into its caller name_ref(), for no other
reason than to make eliminating the recursion a bit easier to follow.
Since the previous patch name_rev() is not recursive anymore, so let's
move all those conditions back into name_rev().
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
SZEDER Gábor [Mon, 9 Dec 2019 11:52:57 +0000 (12:52 +0100)]
name-rev: eliminate recursion in name_rev()
The name_rev() function calls itself recursively for each interesting
parent of the commit it got as parameter, and, consequently, it can
segfault when processing a deep history if it exhausts the available
stack space. E.g. running 'git name-rev --all' and 'git name-rev
HEAD~100000' in the gcc, gecko-dev, llvm, and WebKit repositories
results in segfaults on my machine ('ulimit -s' reports 8192kB of
stack size limit), and nowadays the former segfaults in the Linux repo
as well (it reached the necessasry depth sometime between v5.3-rc4 and
-rc5).
Eliminate the recursion by inserting the interesting parents into a
LIFO 'prio_queue' [1] and iterating until the queue becomes empty.
Note that the parent commits must be added in reverse order to the
LIFO 'prio_queue', so their relative order is preserved during
processing, i.e. the first parent should come out first from the
queue, because otherwise performance greatly suffers on mergy
histories [2].
The stacksize-limited test 'name-rev works in a deep repo' in
't6120-describe.sh' demonstrated this issue and expected failure. Now
the recursion is gone, so flip it to expect success. Also gone are
the dmesg entries logging the segfault of that segfaulting 'git
name-rev' process on every execution of the test suite.
Note that this slightly changes the order of lines in the output of
'git name-rev --all', usually swapping two lines every 35 lines in
git.git or every 150 lines in linux.git. This shouldn't matter in
practice, because the output has always been unordered anyway.
This patch is best viewed with '--ignore-all-space'.
[1] Early versions of this patch used a 'commit_list', resulting in
~15% performance penalty for 'git name-rev --all' in 'linux.git',
presumably because of the memory allocation and release for each
insertion and removal. Using a LIFO 'prio_queue' has basically no
effect on performance.
[2] We prefer shorter names, i.e. 'v0.1~234' is preferred over
'v0.1^2~5', meaning that usually following the first parent of a
merge results in the best name for its ancestors. So when later
we follow the remaining parent(s) of a merge, and reach an already
named commit, then we usually find that we can't give that commit
a better name, and thus we don't have to visit any of its
ancestors again.
OTOH, if we were to follow the Nth parent of the merge first, then
the name of all its ancestors would include a corresponding '^N'.
Those are not the best names for those commits, so when later we
reach an already named commit following the first parent of that
merge, then we would have to update the name of that commit and
the names of all of its ancestors as well. Consequently, we would
have to visit many commits several times, resulting in a
significant slowdown.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
SZEDER Gábor [Mon, 9 Dec 2019 11:52:56 +0000 (12:52 +0100)]
name-rev: use 'name->tip_name' instead of 'tip_name'
Following the previous patches in this series we can get the value of
'name_rev()'s 'tip_name' parameter from the 'struct rev_name'
associated with the commit as well.
So let's use 'name->tip_name' instead, which makes the patch
eliminating the recursion of name_rev() a bit easier to follow.
Note that at this point we could drop the 'tip_name' parameter as
well, but that parameter will be necessary later, after the recursion
is eliminated.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Kazuhiro Kato [Sat, 7 Dec 2019 00:29:09 +0000 (00:29 +0000)]
git gui: fix branch name encoding error
After "git checkout -b '漢字'" to create a branch with UTF-8 character
in it, "git gui" shows the branch name incorrectly, as it forgets to
turn the bytes read from the "git for-each-ref" and read from "HEAD"
file into Unicode characters.
This test case was added in 66ae9a57b88 (t3404: rebase -i: demonstrate
short SHA-1 collision, 2013-08-23), and it is not indented in the way we
usually indent sub-shell code in our test cases these days.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Sat, 7 Dec 2019 19:16:51 +0000 (20:16 +0100)]
patch-id: use oid_to_hex() to print multiple object IDs
flush_current_id() prints the hexadecimal representation of two object
IDs. When the code was added in f97672225b (Add "git-patch-id" program
to generate patch ID's., 2005-06-23), sha1_to_hex() had only a single
internal static buffer, so the result of one invocation had to be stored
in a local buffer.
Since dcb3450fd8 (sha1_to_hex() usage cleanup, 2006-05-03) it rotates
through four buffers, which allows to print up to four object IDs at the
same time. 1a876a69af6 (patch-id: convert to use struct object_id,
2015-03-13) replaced sha1_to_hex() with oid_to_hex(), which has the same
feature. Use it to simplify the code.
Signed-off-by: René Scharfe <l.s.r@web.de> Acked-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Fri, 6 Dec 2019 23:09:24 +0000 (15:09 -0800)]
Merge branch 'dl/lore-is-the-archive'
Publicize lore.kernel.org mailing list archive and use URLs
pointing into it to refer to notable messages in the documentation.
* dl/lore-is-the-archive:
doc: replace LKML link with lore.kernel.org
RelNotes: replace Gmane with real Message-IDs
doc: replace MARC links with lore.kernel.org
Junio C Hamano [Fri, 6 Dec 2019 23:09:22 +0000 (15:09 -0800)]
Merge branch 'rs/use-skip-prefix-more'
Code cleanup.
* rs/use-skip-prefix-more:
name-rev: use skip_prefix() instead of starts_with()
push: use skip_prefix() instead of starts_with()
shell: use skip_prefix() instead of starts_with()
fmt-merge-msg: use skip_prefix() instead of starts_with()
fetch: use skip_prefix() instead of starts_with()
Junio C Hamano [Fri, 6 Dec 2019 23:09:22 +0000 (15:09 -0800)]
Merge branch 'rs/test-cleanup'
Test cleanup.
* rs/test-cleanup:
t7811: don't create unused file
t9300: don't create unused file
test: use test_must_be_empty F instead of test_cmp empty F
test: use test_must_be_empty F instead of test -z $(cat F)
t1400: use test_must_be_empty
t1410: use test_line_count
t1512: use test_line_count
While running "revert" or "cherry-pick --edit" for multiple
commits, a recent regression incorrectly detected "nothing to
commit, working tree clean", instead of replaying the commits,
which has been corrected.
* sg/assume-no-todo-update-in-cherry-pick:
sequencer: don't re-read todo for revert and cherry-pick
SZEDER Gábor [Tue, 12 Nov 2019 10:38:19 +0000 (11:38 +0100)]
name-rev: drop name_rev()'s 'generation' and 'distance' parameters
Following the previous patches in this series we can get the values of
name_rev()'s 'generation' and 'distance' parameters from the 'stuct
rev_name' associated with the commit as well.
Let's simplify the function's signature and remove these two
unnecessary parameters.
Note that at this point we could do the same with the 'tip_name',
'taggerdate' and 'from_tag' parameters as well, but those parameters
will be necessary later, after the recursion is eliminated.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
At the beginning of the recursive name_rev() function it creates a new
'struct rev_name' instance for each previously unvisited commit or, if
this visit results in better name for an already visited commit, then
updates the 'struct rev_name' instance attached to the commit, or
returns early.
Restructure this so it's caller creates or updates the 'struct
rev_name' instance associated with the commit to be passed as
parameter, i.e. both name_ref() before calling name_rev() and
name_rev() itself as it iterates over the parent commits.
This makes eliminating the recursion a bit easier to follow, and the
condition moved to name_ref() will be moved back to name_rev() after
the recursion is eliminated.
This change also plugs the memory leak that was temporarily unplugged
in the earlier "name-rev: pull out deref handling from the recursion"
patch in this series.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
SZEDER Gábor [Tue, 12 Nov 2019 10:38:17 +0000 (11:38 +0100)]
name-rev: restructure parsing commits and applying date cutoff
At the beginning of the recursive name_rev() function it parses the
commit it got as parameter, and returns early if the commit is older
than a cutoff limit.
Restructure this so the caller parses the commit and checks its date,
and doesn't invoke name_rev() if the commit to be passed as parameter
is older than the cutoff, i.e. both name_ref() before calling
name_rev() and name_rev() itself as it iterates over the parent
commits.
This makes eliminating the recursion a bit easier to follow, and the
condition moved to name_ref() will be moved back to name_rev() after
the recursion is eliminated.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
SZEDER Gábor [Tue, 12 Nov 2019 10:38:16 +0000 (11:38 +0100)]
name-rev: pull out deref handling from the recursion
The 'if (deref) { ... }' condition near the beginning of the recursive
name_rev() function can only ever be true in the first invocation,
because the 'deref' parameter is always 0 in the subsequent recursive
invocations.
Extract this condition from the recursion into name_rev()'s caller and
drop the function's 'deref' parameter. This makes eliminating the
recursion a bit easier to follow, and it will be moved back into
name_rev() after the recursion is eliminated.
Furthermore, drop the condition that die()s when both 'deref' and
'generation' are non-null (which should have been a BUG() to begin
with).
Note that this change reintroduces the memory leak that was plugged in
in commit 5308224633 (name-rev: avoid leaking memory in the `deref`
case, 2017-05-04), but a later patch (name-rev: restructure
creating/updating 'struct rev_name' instances) in this series will
plug it in again.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
These conditions are not covered properly in the test suite. As far
as purely test coverage goes, they are all executed several times over
in 't6120-describe.sh'. However, they don't directly influence the
command's output, because the repository used in that test script
contains several branches and tags pointing somewhere into the middle
of the commit DAG, and thus result in a better name for the
to-be-named commit. This can hide bugs: e.g. by replacing the
'new_name' parameter of the first recursive name_rev() call with
'tip_name' (effectively making both branch #1 and #2 a noop) 'git
name-rev --all' shows thousands of bogus names in the Git repository,
but the whole test suite still passes successfully. In an early
version of a later patch in this series I managed to mess up all three
branches (at once!), but the test suite still passed.
So add a new test case that operates on the following history:
A--------------master
\ /
\----------M2
\ /
\---M1-C
\ /
B
and names the commit 'B' to make sure that all three branches are
crucial to determine 'B's name:
- There is only a single ref, so all names are based on 'master',
without any undesired interference from other refs.
- Each time name_rev() follows the second parent of a merge commit,
it appends "^2" to the name. Following 'master's second parent
right at the start ensures that all commits on the ancestry path
from 'master' to 'B' have a different base name from the original
'tip_name' of the very first name_rev() invocation. Currently,
while name_rev() is recursive, it doesn't matter, but it will be
necessary to properly cover all three branches after the recursion
is eliminated later in this series.
- Following 'M2's second parent makes sure that branch #2 (i.e. when
'generation = 0') affects 'B's name.
- Following the only parent of the non-merge commit 'C' ensures that
branch #3 affects 'B's name, and that it increments 'generation'.
- Coming from 'C' 'generation' is 1, thus following 'M1's second
parent makes sure that branch #1 affects 'B's name.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Tue, 12 Nov 2019 10:38:11 +0000 (11:38 +0100)]
name-rev: use strbuf_strip_suffix() in get_rev_name()
get_name_rev() basically open-codes strip_suffix() before adding a
string to a strbuf.
Let's use the strbuf right from the beginning, i.e. add the whole
string to the strbuf and then use strbuf_strip_suffix(), making the
code more idiomatic.
Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
SZEDER Gábor [Tue, 12 Nov 2019 10:38:10 +0000 (11:38 +0100)]
t6120-describe: modernize the 'check_describe' helper
The 'check_describe' helper function runs 'git describe' outside of
'test_expect_success' blocks, with extra hand-rolled code to record
and examine its exit code.
Update this helper and move the 'git describe' invocation inside the
'test_expect_success' block.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Denton Liu [Fri, 6 Dec 2019 20:16:31 +0000 (12:16 -0800)]
range-diff: clear `other_arg` at end of function
We were leaking memory by not clearing `other_arg` after we were done
using it. Clear it after we've finished using it.
Note that this isn't strictly necessary since the memory will be
reclaimed once the command exits. However, since we are releasing the
strbufs, we should also clear `other_arg` for consistency.
Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Denton Liu [Fri, 6 Dec 2019 20:16:22 +0000 (12:16 -0800)]
t3206: fix incorrect test name
The name of the test used to indicate that it was testing the `--notes`
option but it was really testing the `format.notes` configuration.
Correct the test name to reflect this.
Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
SZEDER Gábor [Fri, 6 Dec 2019 19:03:31 +0000 (20:03 +0100)]
t9300-fast-import: don't hang if background fast-import exits too early
The five tests checking 'git fast-import's checkpoint handling in
't9300-fast-import.sh', all with the prefix "V:" in their test
description, can hang indefinitely if 'git fast-import' unexpectedly
dies early in any of these tests.
These five tests run 'git fast-import' in the background, while
feeding instructions to its standard input through a fifo (fd 8) from
a background subshell, and reading and verifying its standard output
through another fifo (fd 9) in the test script's main shell process.
This "reading and verifying" is basically a 'while read ...' shell
loop iterating until 'git fast-import' outputs the expected line,
ignoring any other output. This doesn't work very well when 'git
fast-import' dies before printing that particular line, because the
'read' builtin doesn't get EOF after the death of 'git fast-import',
as their input and output are not connected directly but through a
fifo. Consequently, that 'read' hangs waiting for the next line from
the already dead 'git fast-import', leaving the test script and in
turn the whole test suite hanging.
Avoid this hang by checking whether the background 'git fast-import'
process exited unexpectedly early, and interrupt the 'while read' loop
if it did. We have to jump through some hoops to achive that, though:
- Start the background 'git fast-import' in another background
subshell, which then:
- prints the PID of that 'git fast-import' process to the fifo,
to be read by the main shell process, so it will know which
process to kill when the test is finished.
- waits until that 'git fast-import' process exits. If it does
exit, then report its exit code, and write a message to the
fifo used for 'git fast-import's standard output, thus
un-block the 'read' builtin in the main shell process.
- Modify that 'while read' loop to break the loop upon seeing that
message, and fail the test in the usual way.
- Once the test is finished kill that background subshell as well,
and do so before killing the background 'git fast-import'.
Otherwise the background 'git fast-import' and subshell processes
would die racily, and if 'git fast-import' were to die sooner,
then we might get some undesired and potentially confusing
messages in the test's output.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
SZEDER Gábor [Fri, 6 Dec 2019 19:03:30 +0000 (20:03 +0100)]
t9300-fast-import: store the PID in a variable instead of pidfile
The five tests running 'git fast-import' in the background in
't9300-fast-import.sh' store the PID of that background process in a
pidfile, to be used to check whether that background process survived
each test and then to kill it in test_when_finished commands. To
achieve this all these five tests run three $(cat <pidfile>) command
substitutions each.
Store the PID of the background 'git fast-import' in a variable to
avoid those extra processes.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Phillip Wood [Fri, 6 Dec 2019 16:06:12 +0000 (16:06 +0000)]
commit: give correct advice for empty commit during a rebase
In dcb500dc16c (cherry-pick/revert: advise using --skip, 2019-07-02),
`git commit` learned to suggest to run `git cherry-pick --skip` when
trying to cherry-pick an empty patch.
However, it was overlooked that there are more conditions than just a
`git cherry-pick` when this advice is printed (which originally
suggested the neutral `git reset`): the same can happen during a rebase.
Let's suggest the correct command, even during a rebase.
While at it, we adjust more places in `builtin/commit.c` that
incorrectly assumed that the presence of a `CHERRY_PICK_HEAD` meant that
surely this must be a `cherry-pick` in progress.
Note: we take pains to handle the situation when a user runs a `git
cherry-pick` _during_ a rebase. This is quite valid (e.g. in an `exec`
line in an interactive rebase). On the other hand, it is not possible to
run a rebase during a cherry-pick, meaning: if both `rebase-merge/` and
`sequencer/` exist or CHERRY_PICK_HEAD and REBASE_HEAD point to the same
commit , we still want to advise to use `git cherry-pick --skip`.
Original-patch-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Phillip Wood [Fri, 6 Dec 2019 16:06:11 +0000 (16:06 +0000)]
commit: encapsulate determine_whence() for sequencer
Working out which command wants to create a commit requires detailed
knowledge of the sequencer internals and that knowledge is going to
increase in subsequent commits. With that in mind lets encapsulate that
knowledge in sequencer.c rather than spreading it into builtin/commit.c.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Phillip Wood [Fri, 6 Dec 2019 16:06:09 +0000 (16:06 +0000)]
sequencer: write CHERRY_PICK_HEAD for reword and edit
`git commit` relies on the presence of CHERRY_PICK_HEAD to show the
correct error message in the case of an empty pick. This fixes a
regression introduced by the conversion from shell to C. In the shell
version everything was a cherry-pick as far as the sequencer code was
concerned so it always wrote CHERRY_PICK_HEAD. The conversion to C
forgot to update the code that creates CHERRY_PICK_HEAD. We do not want
to create CHERRY_PICK_HEAD for fixup and squash commands as that would
prevent `git commit --amend` from running.
Note that the error message shown by `git commit` for an empty pick
during a rebase is currently wrong as it talks about running `git
cherry-pick --skip` rather than `git rebase --skip`. This will be fixed
in a future commit which is why the tests are in t3403-rebase-skip.sh.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Phillip Wood [Fri, 6 Dec 2019 16:06:08 +0000 (16:06 +0000)]
cherry-pick: check commit error messages
We disallow partial commits and amending when CHERRY_PICK_HEAD
exists. Add a couple of tests to check the error message printed in each
case before we refactor the code responsible for this.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
cherry-pick: add test for `--skip` advice in `git commit`
In dcb500dc16c (cherry-pick/revert: advise using --skip, 2019-07-02),
`git commit` learned to suggest to run `git cherry-pick --skip` when
trying to cherry-pick an empty patch, but that was never tested for.
Here is a test that verifies that a message is given to the user that
contains the correct invocation.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Phillip Wood [Fri, 6 Dec 2019 16:06:06 +0000 (16:06 +0000)]
t3404: use test_cmp_rev
There are a number of places where we compare two revisions with
test $(git rev-parse rev1) = $(git rev-parse rev2)
when these fail there's no indication what has gone wrong and you need
to be running with `-x` to see where the test has failed. Lets use
test_cmp_rev instead.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Yes, yes, this is supposed to be only a band-aid option for `git add -p`
not Doing The Right Thing. But as long as we carry the `--allow-overlap`
option, we might just as well get it right.
This fixes the case where one hunk inserts a line before the first line,
and is followed by a hunk whose context overlaps with the first one's
and which appends a line at the end.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
git add -p: use non-zero exit code when the diff generation failed
The first thing `git add -p` does is to generate a diff. If this diff
cannot be generated, `git add -p` should not continue as if nothing
happened, but instead fail.
What we *actually* do here is much broader: we now verify for *every*
`run_cmd_pipe()` call that the spawned process actually succeeded.
Note that we have to change two callers in this patch, as we need to
store the spawned process' output in a local variable, which means that
the callers can no longer decide whether to interpret the `return <$fh>`
in array or in scalar context.
This bug was noticed while writing a test case for the diff.algorithm
feature, and we let that test case double as a regression test for this
fixed bug, too.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t3701: verify the shown messages when nothing can be added
In preparation for re-implementing `git add -p` in pure C (where we will
purposefully keep the implementation of `git add -p` separate from the
implementation of `git add -i`), let's verify that the user is told the
same things as in the Perl version when the diff file is either empty or
contains only entries about binary files.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t3701: add a test for the different `add -p` prompts
The `git add -p` command offers different prompts for regular diff hunks
vs mode change pseudo hunks vs diffs deleting files.
Let's cover this in the regresion test suite, in preparation for
re-implementing `git add -p` in C.
For the mode change prompt, we use a trick that lets this test case pass
even on systems without executable bit, i.e. where `core.filemode =
false` (such as Windows): we first add the file to the index with `git
add --chmod=+x`, and then call `git add -p` with `core.filemode` forced
to `true`. The file on disk has no executable bit set, therefore we will
see a mode change.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The TTY prerequisite is a rather heavy one: it not only requires Perl to
work, but also the IO/Pty.pm module (with native support, and it
requires pseudo terminals, too).
In particular, test cases marked with the TTY prerequisite would be
skipped in Git for Windows' SDK.
In the case of `git add -p`, we do not actually need that big a hammer,
as we do not want to test any functionality that requires a pseudo
terminal; all we want is for the interactive add command to use color,
even when being called from within the test suite.
And we found exactly such a trick earlier already: when we added a test
case to verify that the main loop of `git add -i` is colored
appropriately. Let's use that trick instead of the TTY prerequisite.
While at it, we avoid the pipes, as we do not want a SIGPIPE to break
the regression test cases (which will be much more likely when we do not
run everything through Perl because that is inherently slower).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
In this developer's workflows, it often happens that a hunk needs to be
edited in a way that adds lines, and sometimes even reduces the number
of context lines.
Let's add a regression test for this.
Note that just like the preceding test case, the new test case is *not*
handled gracefully by the current `git add -p`. It will be handled
correctly by the upcoming built-in `git add -p`, though.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>