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Author SHA1 Message Date
Junio C Hamano
c5e2df04ac Merge branch 'jk/add-i-diff-filter'
The "interactive.diffFilter" used by "git add -i" must retain
one-to-one correspondence between its input and output, but it was
not enforced and caused end-user confusion.  We now at least make
sure the filtered result has the same number of lines as its input
to detect a broken filter.

* jk/add-i-diff-filter:
  add--interactive: detect bogus diffFilter output
  t3701: add a test for interactive.diffFilter
2018-03-14 12:01:05 -07:00
Junio C Hamano
436d18f2d0 Merge branch 'pw/add-p-recount'
"git add -p" has been lazy in coalescing split patches before
passing the result to underlying "git apply", leading to corner
case bugs; the logic to prepare the patch to be applied after hunk
selections has been tightened.

* pw/add-p-recount:
  add -p: don't rely on apply's '--recount' option
  add -p: fix counting when splitting and coalescing
  add -p: calculate offset delta for edited patches
  add -p: adjust offsets of subsequent hunks when one is skipped
  t3701: add failing test for pathological context lines
  t3701: don't hard code sha1 hash values
  t3701: use test_write_lines and write_script
  t3701: indent here documents
  add -i: add function to format hunk header
2018-03-14 12:01:04 -07:00
Jeff King
42f7d45428 add--interactive: detect bogus diffFilter output
It's important that the diff-filter only filter the
individual lines, and that there remain a one-to-one mapping
between the input and output lines. Otherwise, things like
hunk-splitting will behave quite unexpectedly (e.g., you
think you are splitting at one point, but it has a different
effect in the text patch we apply).

We can't detect all problematic cases, but we can at least
catch the obvious case where we don't even have the correct
number of lines.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-05 12:49:45 -08:00
Jeff King
af3570ed6c t3701: add a test for interactive.diffFilter
This feature was added in 01143847db (add--interactive:
allow custom diff highlighting programs, 2016-02-27) but
never tested. Let's add a basic test.

Note that we only apply the filter when color is enabled,
so we have to use test_terminal. This is an open limitation
explicitly mentioned in the original commit. So take this
commit as testing the status quo, and not making a statement
on whether we'd want to enhance that in the future.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-05 12:49:43 -08:00
Phillip Wood
b3e0fcfe42 add -p: fix counting when splitting and coalescing
When a file has no trailing new line at the end diff records this by
appending "\ No newline at end of file" below the last line of the
file. This line should not be counted in the hunk header. Fix the
splitting and coalescing code to count files without a trailing new line
properly and change one of the tests to test splitting without a
trailing new line.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-05 10:45:41 -08:00
Phillip Wood
2b8ea7f3c7 add -p: calculate offset delta for edited patches
Recount the number of preimage and postimage lines in a hunk after it
has been edited so any change in the number of insertions or deletions
can be used to adjust the offsets of subsequent hunks. If an edited
hunk is subsequently split then the offset correction will be lost. It
would be possible to fix this if it is a problem, however the code
here is still an improvement on the status quo for the common case
where an edited hunk is applied without being split.

This is also a necessary step to removing '--recount' and
'--allow-overlap' from the invocation of 'git apply'. Before
'--recount' can be removed the splitting and coalescing counting needs
to be fixed to handle a missing newline at the end of a file. In order
to remove '--allow-overlap' there needs to be i) some way of verifying
the offset data in the edited hunk (probably by correlating the
preimage (or postimage if the patch is going to be applied in reverse)
lines of the edited and unedited versions to see if they are offset or
if any leading/trailing context lines have been removed) and ii) a way of
dealing with edited hunks that change context lines that are shared
with neighbouring hunks.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-05 10:45:41 -08:00
Phillip Wood
fecc6f3a68 add -p: adjust offsets of subsequent hunks when one is skipped
Since commit 8cbd431082 ("git-add--interactive: replace hunk
recounting with apply --recount", 2008-7-2) if a hunk is skipped then
we rely on the context lines to apply subsequent hunks in the right
place. While this works most of the time it is possible for hunks to
end up being applied in the wrong place. To fix this adjust the offset
of subsequent hunks to correct for any change in the number of
insertions or deletions due to the skipped hunk. The change in offset
due to edited hunks that have the number of insertions or deletions
changed is ignored here, it will be fixed in the next commit.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-01 11:39:15 -08:00
Phillip Wood
23fea4c240 t3701: add failing test for pathological context lines
When a hunk is skipped by add -i the offsets of subsequent hunks are
not adjusted to account for any missing insertions due to the skipped
hunk. Most of the time this does not matter as apply uses the context
lines to apply the subsequent hunks in the correct place, however in
pathological cases the context lines will match at the now incorrect
offset and the hunk will be applied in the wrong place. The offsets of
hunks following an edited hunk that has had the number of insertions
or deletions changed also need to be updated in the same way. Add
failing tests to demonstrate this.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-01 11:39:15 -08:00
Phillip Wood
902f414a72 t3701: don't hard code sha1 hash values
Use a filter when comparing diffs to fix the value of non-zero hashes
in diff index lines so we're not hard coding sha1 hash values in the
expected output. This makes it easier to change the expected output if
a test is edited as we don't need to worry about the exact hash value
and means the tests will work when the hash algorithm is transitioned
away from sha1.

Thanks-to: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-01 11:39:15 -08:00
Phillip Wood
11489a6539 t3701: use test_write_lines and write_script
Simplify things slightly by using the above helpers.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-20 09:25:48 -08:00
Phillip Wood
e4d671c6a6 t3701: indent here documents
Indent here documents in line with the current style for tests.
While at it, quote the end marker of here-docs that do not use
variable interpolation.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-20 08:55:15 -08:00
Nguyễn Thái Ngọc Duy
12434efc1d add--interactive: ignore submodule changes except HEAD
For 'add -i' and 'add -p', the only action we can take on a dirty
submodule entry is update the index with a new value from its HEAD. The
content changes inside (from its own index, untracked files...) do not
matter, at least until 'git add -i' learns about launching a new
interactive add session inside a submodule.

Ignore all other submodules changes except HEAD. This reduces the number
of entries the user has to check through in 'git add -i', and the number
of 'no' they have to answer to 'git add -p' when dirty submodules are
present.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-16 12:32:45 -08:00
Jeff King
6be4595edb color: make "always" the same as "auto" in config
It can be handy to use `--color=always` (or it's synonym
`--color`) on the command-line to convince a command to
produce color even if it's stdout isn't going to the
terminal or a pager.

What's less clear is whether it makes sense to set config
variables like color.ui to `always`. For a one-shot like:

  git -c color.ui=always ...

it's potentially useful (especially if the command doesn't
directly support the `--color` option). But setting `always`
in your on-disk config is much muddier, as you may be
surprised when piped commands generate colors (and send them
to whatever is consuming the pipe downstream).

Some people have done this anyway, because:

  1. The documentation for color.ui makes it sound like
     using `always` is a good idea, when you almost
     certainly want `auto`.

  2. Traditionally not every command (and especially not
     plumbing) respected color.ui in the first place. So
     the confusion came up less frequently than it might
     have.

The situation changed in 136c8c8b8f (color: check color.ui
in git_default_config(), 2017-07-13), which negated point
(2): now scripts using only plumbing commands (like
add-interactive) are broken by this setting.

That commit was fixing real issues (e.g., by making
`color.ui=never` work, since `auto` is the default), so we
don't want to just revert it.  We could turn `always` into a
noop in plumbing commands, but that creates a hard-to-explain
inconsistency between the plumbing and other commands.

Instead, let's just turn `always` into `auto` for all config.
This does break the "one-shot" config shown above, but again,
we're probably better to have simple and consistent rules than
to try to special-case command-line config.

There is one place where `always` should retain its meaning:
on the command line, `--color=always` should continue to be
the same as `--color`, overriding any isatty checks. Since the
command-line parser also depends on git_config_colorbool(), we
can use the existence of the "var" string to deterine whether
we are serving the command-line or the config.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-04 11:35:30 +09:00
Jeff King
8552972b13 t3701: use test-terminal to collect color output
When testing whether "add -p" can generate colors, we set
color.ui to "always". This isn't a very good test, as in the
real-world a user typically has "auto" coupled with stdout
going to a terminal (and it's plausible that this could mask
a real bug in add--interactive if we depend on plumbing's
isatty check).

Let's switch to test_terminal, which gives us a more
realistic environment. This also prepare us for future
changes to the "always" color option.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-04 11:32:56 +09:00
Junio C Hamano
54e6ce5960 Merge branch 'jk/add-p-commentchar-fix'
"git add -p" were updated in 2.12 timeframe to cope with custom
core.commentchar but the implementation was buggy and a
metacharacter like $ and * did not work.

* jk/add-p-commentchar-fix:
  add--interactive: quote commentChar regex
  add--interactive: handle EOF in prompt_yesno
2017-06-26 14:09:31 -07:00
Jeff King
d85d7ecb80 add--interactive: quote commentChar regex
Since c9d961647 (i18n: add--interactive: mark
edit_hunk_manually message for translation, 2016-12-14),
when the user asks to edit a hunk manually, we respect
core.commentChar in generating the edit instructions.
However, when we then strip out comment lines, we use a
simple regex like:

  /^$commentChar/

If your chosen comment character is a regex metacharacter,
then that will behave in a confusing manner ("$", for
instance, would only eliminate blank lines, not actual
comment lines).

We can fix that by telling perl not to respect
metacharacters.

Reported-by: Christian Rösch <christian@croesch.de>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-21 14:06:20 -07:00
Patrick Steinhardt
be4dbbbed9 pathspec: honor PATHSPEC_PREFIX_ORIGIN with empty prefix
Previous to commit 5d8f084a5 (pathspec: simpler logic to prefix original
pathspec elements, 2017-01-04), we were always using the computed
`match` variable to perform pathspec matching whenever
`PATHSPEC_PREFIX_ORIGIN` is set. This is for example useful when passing
the parsed pathspecs to other commands, as the computed `match` may
contain a pathspec relative to the repository root. The commit changed
this logic to only do so when we do have an actual prefix and when
literal pathspecs are deactivated.

But this change may actually break some commands which expect passed
pathspecs to be relative to the repository root. One such case is `git
add --patch`, which now fails when using relative paths from a
subdirectory. For example if executing "git add -p ../foo.c" in a
subdirectory, the `git-add--interactive` command will directly pass
"../foo.c" to `git-ls-files`. As ls-files is executed at the
repository's root, the command will notice that "../foo.c" is outside
the repository and fail.

Fix the issue by again using the computed `match` variable when
`PATHSPEC_PREFIX_ORIGIN` is set and global literal pathspecs are
deactivated. Note that in contrast to previous behavior, we will now
always call `prefix_magic` regardless of whether a prefix is actually
set. But this is the right thing to do: when the `match` variable has
been resolved to the repository's root, it will be set to an empty
string. When passing the empty string directly to other commands, it
will result in a warning regarding deprecated empty pathspecs. By always
adding the prefix magic, we will end up with at least the string
":(prefix:0)" and thus avoid the warning.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Acked-by: Brandon Williams <bmwill@google.com>
Reviewed-by: Duy Nguyen <pclouds@gmail.com>
2017-04-14 23:55:24 -07:00
Junio C Hamano
153e0d762c Merge branch 'jk/add-i-use-pathspecs'
"git add -p <pathspec>" unnecessarily expanded the pathspec to a
list of individual files that matches the pathspec by running "git
ls-files <pathspec>", before feeding it to "git diff-index" to see
which paths have changes, because historically the pathspec
language supported by "diff-index" was weaker.  These days they are
equivalent and there is no reason to internally expand it.  This
helps both performance and avoids command line argument limit on
some platforms.

* jk/add-i-use-pathspecs:
  add--interactive: do not expand pathspecs with ls-files
2017-03-17 13:50:26 -07:00
Jeff King
7288e12cce add--interactive: do not expand pathspecs with ls-files
When we want to get the list of modified files, we first
expand any user-provided pathspecs with "ls-files", and then
feed the resulting list of paths as arguments to
"diff-index" and "diff-files". If your pathspec expands into
a large number of paths, you may run into one of two
problems:

  1. The OS may complain about the size of the argument
     list, and refuse to run. For example:

       $ (ulimit -s 128 && git add -p drivers)
       Can't exec "git": Argument list too long at .../git-add--interactive line 177.
       Died at .../git-add--interactive line 177.

     That's on the linux.git repository, which has about 20K
     files in the "drivers" directory (none of them modified
     in this case). The "ulimit -s" trick is necessary to
     show the problem on Linux even for such a gigantic set
     of paths. Other operating systems have much smaller
     limits (e.g., a real-world case was seen with only 5K
     files on OS X).

  2. Even when it does work, it's really slow. The pathspec
     code is not optimized for huge numbers of paths. Here's
     the same case without the ulimit:

       $ time git add -p drivers
       No changes.

       real	0m16.559s
       user	0m53.140s
       sys	0m0.220s

We can improve this by skipping "ls-files" completely, and
just feeding the original pathspecs to the diff commands.
This solution was discussed in 2010:

  http://public-inbox.org/git/20100105041438.GB12574@coredump.intra.peff.net/

but at the time the diff code's pathspecs were more
primitive than those used by ls-files (e.g., they did not
support globs). Making the change would have caused a
user-visible regression, so we didn't.

Since then, the pathspec code has been unified, and the diff
commands natively understand pathspecs like '*.c'.

This patch implements that solution. That skips the
argument-list limits, and the result runs much faster:

  $ time git add -p drivers
  No changes.

  real	0m0.149s
  user	0m0.116s
  sys	0m0.080s

There are two new tests. The first just exercises the
globbing behavior to confirm that we are not causing a
regression there. The second checks the actual argument
behavior using GIT_TRACE. We _could_ do it with the "ulimit
-s" trick, as above. But that would mean the test could only
run where "ulimit -s" works. And tests of that sort are
expensive, because we have to come up with enough files to
actually bust the limit (we can't just shrink the "128" down
infinitely, since it is also the in-program stack size).

Finally, two caveats and possibilities for future work:

  a. This fixes one argument-list expansion, but there may
     be others. In fact, it's very likely that if you run
     "git add -i" and select a large number of modified
     files that the script would try to feed them all to a
     single git command.

     In practice this is probably fine. The real issue here
     is that the argument list was growing with the _total_
     number of files, not the number of modified or selected
     files.

  b. If the repository contains filenames with literal wildcard
     characters (e.g., "foo*"), the original code expanded
     them via "ls-files" and then fed those wildcard names
     to "diff-index", which would have treated them as
     wildcards. This was a bug, which is now fixed (though
     unless you really go through some contortions with
     ":(literal)", it's likely that your original pathspec
     would match whatever the accidentally-expanded wildcard
     would anyway).

     So this takes us one step closer to working correctly
     with files whose names contain wildcard characters, but
     it's likely that others remain (e.g., if "git add -i"
     feeds the selected paths to "git add").

Reported-by: Wincent Colaiuta <win@wincent.com>
Reported-by: Mislav Marohnić <mislav.marohnic@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-14 13:27:23 -07:00
Jeff King
c852bd54bd add--interactive: fix missing file prompt for patch mode with "-i"
When invoked as "git add -i", each menu interactive menu
option prompts the user to select a list of files. This
includes the "patch" option, which gets the list before
starting the hunk-selection loop.

As "git add -p", it behaves differently, and jumps straight
to the hunk selection loop.

Since 0539d5e6d (i18n: add--interactive: mark patch prompt
for translation, 2016-12-14), the "add -i" case mistakenly
jumps to straight to the hunk-selection loop. Prior to that
commit the distinction between the two cases was managed by
the $patch_mode variable. That commit used $patch_mode for
something else, and moved the old meaning to the "$cmd"
variable.  But it forgot to update the $patch_mode check
inside patch_update_cmd() which controls the file-list
behavior.

The simplest fix would be to change that line to check $cmd.
But while we're here, let's use a less obscure name for this
flag: $patch_mode_only, a boolean which tells whether we are
in full-interactive mode or only in patch-mode.

Reported-by: Henrik Grubbström <grubba@grubba.org>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-02 10:10:38 -08:00
Jeff King
55cccf4bb3 color_parse_mem: allow empty color spec
Prior to c2f41bf52 (color.c: fix color_parse_mem() with
value_len == 0, 2017-01-19), the empty string was
interpreted as a color "reset". This was an accidental
outcome, and that commit turned it into an error.

However, scripts may pass the empty string as a default
value to "git config --get-color" to disable color when the
value is not defined. The git-add--interactive script does
this. As a result, the script is unusable since c2f41bf52
unless you have color.diff.plain defined (if it is defined,
then we don't parse the empty default at all).

Our test scripts didn't notice the recent breakage because
they run without a terminal, and thus without color. They
never hit this code path at all. And nobody noticed the
original buggy "reset" behavior, because it was effectively
a noop.

Let's fix the code to have an empty color name produce an
empty sequence of color codes. The tests need a few fixups:

  - we'll add a new test in t4026 to cover this case. But
    note that we need to tweak the color() helper. While
    we're there, let's factor out the literal ANSI ESC
    character. Otherwise it makes the diff quite hard to
    read.

  - we'll add a basic sanity-check in t4026 that "git add
    -p" works at all when color is enabled. That would have
    caught this bug, as well as any others that are specific
    to the color code paths.

  - 73c727d69 (log --graph: customize the graph lines with
    config log.graphColors, 2017-01-19) added a test to
    t4202 that checks some "invalid" graph color config.
    Since ",, blue" before yielded only "blue" as valid, and
    now yields "empty, empty, blue", we don't match the
    expected output.

    One way to fix this would be to change the expectation
    to the empty color strings. But that makes the test much
    less interesting, since we show only two graph lines,
    both of which would be colorless.

    Since the empty-string case is now covered by t4026,
    let's remove them entirely here. They're just in the way
    of the primary thing the test is supposed to be
    checking.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-31 21:02:04 -08:00
Matthieu Moy
1bf01040f0 add -p: demonstrate failure when running 'edit' after a split
The test passes if one replaces the 'e' command with a 'y' command in
the 'add -p' session.

Reported-by: Tanky Woo <wtq1990@gmail.com>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-16 14:14:10 -07:00
Matthieu Moy
416145f07a t3701-add-interactive: simplify code
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-16 14:14:09 -07:00
Jonathan Nieder
b018c73526 test: make FILEMODE a lazy prereq
This way, test authors don't need to remember to source
lib-prereq-FILEMODE.sh before using the FILEMODE prereq to guard tests
that rely on the executable bit being honored when checking out files.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-26 14:21:26 -08:00
Jonathan Nieder
a070221eed add -i test: use skip_all instead of repeated PERL prerequisite
It is too easy to forget to add the PERL prerequisite for new
"add -i" tests, especially given that many people do not test with
NO_PERL so the missing prereq is not always noticed quickly.

The test had used the skip_all mechanism since 1b19ccd2 (2009-04-03)
but switched to explicit PERL prereqs in f0459319 (2010-10-13) in hope
of helping people see how many tests were skipped, perhaps to motivate
them to tweak their platform or tests to improve test coverage.  That
didn't pan out much in practice, so let's move back to the simpler
skip_all method.

Reported-by: Kacper Kornet <draenog@pld-linux.org>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-24 23:58:43 -07:00
Stefano Lattarini
41ccfdd9c9 Correct common spelling mistakes in comments and tests
Most of these were found using Lucas De Marchi's codespell tool.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-12 13:38:40 -07:00
Jeff King
4066bd6797 add--interactive: ignore unmerged entries in patch mode
When "add -p" sees an unmerged entry, it shows the combined
diff and then immediately skips the hunk. This can be
confusing in a variety of ways, depending on whether there
are other changes to stage (in which case you get the
superfluous combined diff output in between other hunks) or
not (in which case you get the combined diff and the program
exits immediately, rather than seeing "No changes").

The current behavior was not planned, and is just what the
implementation happens to do. Instead, let's explicitly
remove unmerged entries from our list of modified files, and
print a warning that we are ignoring them.

We can cheaply find which entries are unmerged by adding
"--raw" output to the "diff-files --numstat" we already run.
There is one non-obvious thing we must change when parsing
this combined output. Before this patch, when we saw a
numstat line for a file that did not have index changes, we
would create a new record with 'unchanged' in the 'INDEX'
field.  Because "--raw" comes before "--numstat", we must
move this special-case down to the raw-line case (and it is
sufficient to move it rather than handle it in both places,
since any file which has a --numstat will also have a --raw
entry).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-05 09:01:03 -07:00
Junio C Hamano
f3b173daf4 Merge branch 'jc/maint-add-p-overlapping-hunks'
* jc/maint-add-p-overlapping-hunks:
  t3701: add-p-fix makes the last test to pass
  "add -p": work-around an old laziness that does not coalesce hunks
  add--interactive.perl: factor out repeated --recount option
  t3701: Editing a split hunk in an "add -p" session
  add -p: 'q' should really quit
2011-05-11 11:37:46 -07:00
Junio C Hamano
0bf9fc0cd2 t3701: add-p-fix makes the last test to pass
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-08 13:43:04 -07:00
Junio C Hamano
8fe6177ac6 t3701: fix here document
A broken here-document was not caught because end of file is taken by
an implicit end of the here document (POSIX does not seem to say it is
an error to lack the delimiter), and everything in the test just turned
into a single "cat into a file".

Noticed-by: Kacper Kornet <draenog@pld-linux.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-05 11:28:52 -07:00
Junio C Hamano
f3217e2b17 t3701: Editing a split hunk in an "add -p" session
Arnaud Lacombe reported that with the recent change to reject overlapping
hunks fed to "git apply", the edit mode of an "add -p" session that lazily
feeds overlapping hunks without coalescing adjacent ones claim that the
patch does not apply.  Expose the problem to be fixed.

Cf. http://thread.gmane.org/gmane.comp.version-control.git/170685/focus=171000

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-29 15:26:41 -07:00
Ævar Arnfjörð Bjarmason
f04593199b t/t3701-add-interactive.sh: change from skip_all=* to prereq skip
Change this test to skip test with test prerequisites, and to do setup
work in tests. This improves the skipped statistics on platforms where
the test isn't run.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-18 12:43:23 -07:00
Ævar Arnfjörð Bjarmason
535d974285 tests: Move FILEMODE prerequisite to lib-prereq-FILEMODE.sh
Change the five tests that were all checking "git config --bool
core.filemode" to use a new FILEMODE prerequisite in
lib-prereq-FILEMODE.sh.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-18 12:43:23 -07:00
Ævar Arnfjörð Bjarmason
fadb5156e4 tests: Skip tests in a way that makes sense under TAP
SKIP messages are now part of the TAP plan. A TAP harness now knows
why a particular test was skipped and can report that information. The
non-TAP harness built into Git's test-lib did nothing special with
these messages, and is unaffected by these changes.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-25 10:08:20 -07:00
Junio C Hamano
a876433c5f Merge branch 'jk/maint-add-p-delete-fix' into maint
* jk/maint-add-p-delete-fix:
  add-interactive: fix deletion of non-empty files
2009-12-08 22:37:50 -08:00
Jeff King
8947fdd598 add-interactive: fix deletion of non-empty files
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>
2009-12-07 23:52:46 -08:00
Junio C Hamano
5e9cb8666b Merge branch 'jk/maint-add-p-empty' into maint
* jk/maint-add-p-empty:
  add-interactive: handle deletion of empty files
2009-11-16 00:02:44 -08:00
Jeff King
24ab81ae4d add-interactive: handle deletion of empty files
Usually we show deletion as a big hunk deleting all of the
file's text. However, for files with no content, the diff
shows just the 'deleted file mode ...' line. This patch
cause "add -p" (and related commands) to recognize that line
and explicitly ask about deleting the file.

We only add the "stage this deletion" hunk for empty files,
since other files will already ask about the big content
deletion hunk. We could also change those files to simply
display "stage this deletion", but showing the actual
deleted content is probably what an interactive user wants.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-27 23:19:04 -07:00
Pauli Virtanen
b145b211ba git-add--interactive: never skip files included in index
Make "git add -p" to not skip files that are in index even if they are
excluded (by .gitignore etc.). This fixes the contradictory behavior
that "git status" and "git commit -a" listed such files as modified, but
"git add -p FILENAME" ignored them.

Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-10 14:56:13 -07:00
Junio C Hamano
9e4a90ba19 Merge branch 'tr/maint-1.6.3-add-p-modeonly-fix' into maint-1.6.3
* tr/maint-1.6.3-add-p-modeonly-fix:
  add -p: do not attempt to coalesce mode changes
  git add -p: demonstrate failure when staging both mode and hunk
2009-08-26 11:22:00 -07:00
Junio C Hamano
09ba7b2d9f Merge branch 'tr/maint-1.6.3-add-p-modeonly-fix'
* tr/maint-1.6.3-add-p-modeonly-fix:
  add -p: do not attempt to coalesce mode changes
  git add -p: demonstrate failure when staging both mode and hunk
2009-08-18 23:32:58 -07:00
Thomas Rast
3d792161b1 add -p: do not attempt to coalesce mode changes
In 0392513 (add-interactive: refactor mode hunk handling, 2009-04-16),
we merged the interaction loops for mode changes and hunk staging.
This was fine at the time, because 0beee4c (git-add--interactive:
remove hunk coalescing, 2008-07-02) removed hunk coalescing.

However, in 7a26e65 (Revert "git-add--interactive: remove hunk
coalescing", 2009-05-16), we resurrected it.  Since then, the code
would attempt in vain to merge mode changes with diff hunks,
corrupting both in the process.

We add a check to the coalescing loop to ensure it only looks at diff
hunks, thus skipping mode changes.

Noticed-by: Kirill Smelkov <kirr@mns.spb.ru>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-15 10:36:59 -07:00
Kirill Smelkov
87ca2eaade git add -p: demonstrate failure when staging both mode and hunk
When trying to stage changes to file which has also pending `chmod +x`,
`git add -p` produces lots of 'Use of uninitialized value ...' warnings
and fails to do the job:

    $ echo content >> file
    $ chmod +x file
    $ git add -p
    diff --git a/file b/file
    index e69de29..d95f3ad
    --- a/file
    +++ b/file
    old mode 100644
    new mode 100755
    Stage mode change [y,n,q,a,d,/,j,J,g,?]? y
    @@ -0,0 +1 @@
    +content
    Stage this hunk [y,n,q,a,d,/,K,g,e,?]? y
    Use of uninitialized value $o_ofs in addition (+) at .../git-add--interactive line 776.
    Use of uninitialized value $ofs in numeric le (<=) at .../git-add--interactive line 806.
    Use of uninitialized value $o0_ofs in concatenation (.) or string at .../git-add--interactive line 830.
    Use of uninitialized value $n0_ofs in concatenation (.) or string at .../git-add--interactive line 830.
    Use of uninitialized value $o_ofs in addition (+) at .../git-add--interactive line 776.
    fatal: corrupt patch at line 5
    diff --git a/file b/file
    index e69de29..d95f3ad
    --- a/file
    +++ b/file
    @@ -,0 + @@
    +content

Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-15 10:36:29 -07:00
Johannes Sixt
32a90233d1 t3701: ensure correctly set up repository after skipped tests
There are two tests that are skipped if file modes are not obeyed by the
file system. In this case, the subsequent test failed because the
repository was in an unexpected state. This corrects it.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-25 11:23:30 -07:00
Junio C Hamano
7a26e65392 Revert "git-add--interactive: remove hunk coalescing"
This reverts commit 0beee4c6de but with a
bit of twist, as we have added "edit hunk manually" hack and we cannot
rely on the original line numbers of the hunks that were manually edited.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-16 18:52:12 -07:00
Matt Graham
f67182bf65 Splitting a hunk that adds a line at the top fails in "add -p"
Splitting a hunk into two in add -p doesn't work for a diff that adds a
new line at the top of the file with other add in the same hunk.

Signed-off-by: Matthew Graham <mdg149@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-16 18:52:03 -07:00
Jeff King
1b19ccd236 tests: skip perl tests if NO_PERL is defined
These scripts all test git programs that are written in
perl, and thus obviously won't work if NO_PERL is defined.
We pass NO_PERL to the scripts from the building Makefile
via the GIT-BUILD-OPTIONS file.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-08 22:42:16 -07:00
Johannes Sixt
872f349e7b Skip tests that fail if the executable bit is not handled by the filesystem
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
2009-03-22 17:26:44 +01:00
Thomas Rast
ac083c47ea git-add--interactive: manual hunk editing mode
Adds a new option 'e' to the 'add -p' command loop that lets you edit
the current hunk in your favourite editor.

If the resulting patch applies cleanly, the edited hunk will
immediately be marked for staging. If it does not apply cleanly, you
will be given an opportunity to edit again. If all lines of the hunk
are removed, then the edit is aborted and the hunk is left unchanged.

Applying the changed hunk(s) relies on Johannes Schindelin's new
--recount option for git-apply.

Note that the "real patch" test intentionally uses
  (echo e; echo n; echo d) | git add -p
even though the 'n' and 'd' are superfluous at first sight.  They
serve to get out of the interaction loop if git add -p wrongly
concludes the patch does not apply.

Many thanks to Jeff King <peff@peff.net> for lots of help and
suggestions.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-02 15:31:49 -07:00
Alex Riesen
26ec126a91 Fix t3701 if core.filemode disabled
[jc: squashed in suggestions from Jeff King]

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-21 11:20:34 -07:00