Commit Graph

156 Commits

Author SHA1 Message Date
Vasco Almeida
c9d9616471 i18n: add--interactive: mark edit_hunk_manually message for translation
Mark message of edit_hunk_manually displayed in the editing file when
user chooses 'e' option.  The message had to be unfolded to allow
translation of the $participle verb.

Some messages end up being exactly the same for some use cases, but
left it for easier change in the future, e.g., wanting to change wording
of one particular use case.

The comment character is now used according to the git configuration
core.commentchar.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14 11:00:05 -08:00
Vasco Almeida
186b52c52a i18n: add--interactive: i18n of help_patch_cmd
Mark help message of help_patch_cmd for translation.  The message must
be unfolded to be free of variables so we can have high quality
translations.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14 11:00:05 -08:00
Vasco Almeida
0539d5e6d5 i18n: add--interactive: mark patch prompt for translation
Mark prompt message assembled in place for translation, unfolding each
use case for each entry in the %patch_modes hash table.

Previously, this script relied on whether $patch_mode was set to run the
command patch_update_cmd() or show status and loop the main loop. Now,
it uses $cmd to indicate we must run patch_update_cmd() and $patch_mode
is used to tell which flavor of the %patch_modes are we on.  This is
introduced in order to be able to mark and unfold the message prompt
knowing in which context we are.

The tracking of context was done previously by point %patch_mode_flavour
hash table to the correct entry of %patch_modes, focusing only on value
of %patch_modes. Now, we are also interested in the key ('staged',
'stash', 'checkout_head', ...).

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14 11:00:05 -08:00
Vasco Almeida
c4a85c3b8e i18n: add--interactive: mark plural strings
Mark plural strings for translation.  Unfold each action case in one
entire sentence.

Pass new keyword for xgettext to extract.

Update test to include new subroutine __n() for plural strings handling.

Update documentation to include a description of the new __n()
subroutine.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14 11:00:05 -08:00
Vasco Almeida
13c58c1754 i18n: add--interactive: mark strings with interpolation for translation
Since at this point Git::I18N.perl lacks support for Perl i18n
placeholder substitution, use of sprintf following die or error_msg is
necessary for placeholder substitution take place.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14 11:00:04 -08:00
Vasco Almeida
5fa832640a i18n: add--interactive: mark simple here-documents for translation
Mark messages in here-documents without interpolation for translation.

The here-document delimiter \EOF, which is the same as 'EOF', indicates
that the text is to be treated literally without interpolation of its
content.  Unfortunately xgettext is not able to extract here-documents
delimited with \EOF but it is with delimiter enclosed in single quotes.
So change \EOF to 'EOF', although in this case does not make
difference what variation of here-document to use since there is nothing
to interpolate.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14 11:00:04 -08:00
Vasco Almeida
258e7790b3 i18n: add--interactive: mark strings for translation
Mark simple strings (without interpolation) for translation.

Brackets around first parameter of ternary operator is necessary because
otherwise xgettext fails to extract strings marked for translation from
the rest of the file.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14 11:00:04 -08:00
Michael Haggerty
433860f3d0 diff: improve positioning of add/delete blocks in diffs
Some groups of added/deleted lines in diffs can be slid up or down,
because lines at the edges of the group are not unique. Picking good
shifts for such groups is not a matter of correctness but definitely has
a big effect on aesthetics. For example, consider the following two
diffs. The first is what standard Git emits:

    --- a/9c572b21dd090a1e5c5bb397053bf8043ffe7fb4:git-send-email.perl
    +++ b/6dcfa306f2b67b733a7eb2d7ded1bc9987809edb:git-send-email.perl
    @@ -231,6 +231,9 @@ if (!defined $initial_reply_to && $prompting) {
     }

     if (!$smtp_server) {
    +       $smtp_server = $repo->config('sendemail.smtpserver');
    +}
    +if (!$smtp_server) {
            foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
                    if (-x $_) {
                            $smtp_server = $_;

The following diff is equivalent, but is obviously preferable from an
aesthetic point of view:

    --- a/9c572b21dd090a1e5c5bb397053bf8043ffe7fb4:git-send-email.perl
    +++ b/6dcfa306f2b67b733a7eb2d7ded1bc9987809edb:git-send-email.perl
    @@ -230,6 +230,9 @@ if (!defined $initial_reply_to && $prompting) {
            $initial_reply_to =~ s/(^\s+|\s+$)//g;
     }

    +if (!$smtp_server) {
    +       $smtp_server = $repo->config('sendemail.smtpserver');
    +}
     if (!$smtp_server) {
            foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
                    if (-x $_) {

This patch teaches Git to pick better positions for such "diff sliders"
using heuristics that take the positions of nearby blank lines and the
indentation of nearby lines into account.

The existing Git code basically always shifts such "sliders" as far down
in the file as possible. The only exception is when the slider can be
aligned with a group of changed lines in the other file, in which case
Git favors depicting the change as one add+delete block rather than one
add and a slightly offset delete block. This naive algorithm often
yields ugly diffs.

Commit d634d61ed6 improved the situation somewhat by preferring to
position add/delete groups to make their last line a blank line, when
that is possible. This heuristic does more good than harm, but (1) it
can only help if there are blank lines in the right places, and (2)
always picks the last blank line, even if there are others that might be
better. The end result is that it makes perhaps 1/3 as many errors as
the default Git algorithm, but that still leaves a lot of ugly diffs.

This commit implements a new and much better heuristic for picking
optimal "slider" positions using the following approach: First observe
that each hypothetical positioning of a diff slider introduces two
splits: one between the context lines preceding the group and the first
added/deleted line, and the other between the last added/deleted line
and the first line of context following it. It tries to find the
positioning that creates the least bad splits.

Splits are evaluated based only on the presence and locations of nearby
blank lines, and the indentation of lines near the split. Basically, it
prefers to introduce splits adjacent to blank lines, between lines that
are indented less, and between lines with the same level of indentation.
In more detail:

1. It measures the following characteristics of a proposed splitting
   position in a `struct split_measurement`:

   * the number of blank lines above the proposed split
   * whether the line directly after the split is blank
   * the number of blank lines following that line
   * the indentation of the nearest non-blank line above the split
   * the indentation of the line directly below the split
   * the indentation of the nearest non-blank line after that line

2. It combines the measured attributes using a bunch of
   empirically-optimized weighting factors to derive a `struct
   split_score` that measures the "badness" of splitting the text at
   that position.

3. It combines the `split_score` for the top and the bottom of the
   slider at each of its possible positions, and selects the position
   that has the best `split_score`.

I determined the initial set of weighting factors by collecting a corpus
of Git histories from 29 open-source software projects in various
programming languages. I generated many diffs from this corpus, and
determined the best positioning "by eye" for about 6600 diff sliders. I
used about half of the repositories in the corpus (corresponding to
about 2/3 of the sliders) as a training set, and optimized the weights
against this corpus using a crude automated search of the parameter
space to get the best agreement with the manually-determined values.
Then I tested the resulting heuristic against the full corpus. The
results are summarized in the following table, in column `indent-1`:

| repository            | count |      Git 2.9.0 |     compaction | compaction-fixed |       indent-1 |       indent-2 |
| --------------------- | ----- | -------------- | -------------- | ---------------- | -------------- | -------------- |
| afnetworking          |   109 |    89  (81.7%) |    37  (33.9%) |      37  (33.9%) |     2   (1.8%) |     2   (1.8%) |
| alamofire             |    30 |    18  (60.0%) |    14  (46.7%) |      15  (50.0%) |     0   (0.0%) |     0   (0.0%) |
| angular               |   184 |   127  (69.0%) |    39  (21.2%) |      23  (12.5%) |     5   (2.7%) |     5   (2.7%) |
| animate               |   313 |     2   (0.6%) |     2   (0.6%) |       2   (0.6%) |     2   (0.6%) |     2   (0.6%) |
| ant                   |   380 |   356  (93.7%) |   152  (40.0%) |     148  (38.9%) |    15   (3.9%) |    15   (3.9%) | *
| bugzilla              |   306 |   263  (85.9%) |   109  (35.6%) |      99  (32.4%) |    14   (4.6%) |    15   (4.9%) | *
| corefx                |   126 |    91  (72.2%) |    22  (17.5%) |      21  (16.7%) |     6   (4.8%) |     6   (4.8%) |
| couchdb               |    78 |    44  (56.4%) |    26  (33.3%) |      28  (35.9%) |     6   (7.7%) |     6   (7.7%) | *
| cpython               |   937 |   158  (16.9%) |    50   (5.3%) |      49   (5.2%) |     5   (0.5%) |     5   (0.5%) | *
| discourse             |   160 |    95  (59.4%) |    42  (26.2%) |      36  (22.5%) |    18  (11.2%) |    13   (8.1%) |
| docker                |   307 |   194  (63.2%) |   198  (64.5%) |     253  (82.4%) |     8   (2.6%) |     8   (2.6%) | *
| electron              |   163 |   132  (81.0%) |    38  (23.3%) |      39  (23.9%) |     6   (3.7%) |     6   (3.7%) |
| git                   |   536 |   470  (87.7%) |    73  (13.6%) |      78  (14.6%) |    16   (3.0%) |    16   (3.0%) | *
| gitflow               |   127 |     0   (0.0%) |     0   (0.0%) |       0   (0.0%) |     0   (0.0%) |     0   (0.0%) |
| ionic                 |   133 |    89  (66.9%) |    29  (21.8%) |      38  (28.6%) |     1   (0.8%) |     1   (0.8%) |
| ipython               |   482 |   362  (75.1%) |   167  (34.6%) |     169  (35.1%) |    11   (2.3%) |    11   (2.3%) | *
| junit                 |   161 |   147  (91.3%) |    67  (41.6%) |      66  (41.0%) |     1   (0.6%) |     1   (0.6%) | *
| lighttable            |    15 |     5  (33.3%) |     0   (0.0%) |       2  (13.3%) |     0   (0.0%) |     0   (0.0%) |
| magit                 |    88 |    75  (85.2%) |    11  (12.5%) |       9  (10.2%) |     1   (1.1%) |     0   (0.0%) |
| neural-style          |    28 |     0   (0.0%) |     0   (0.0%) |       0   (0.0%) |     0   (0.0%) |     0   (0.0%) |
| nodejs                |   781 |   649  (83.1%) |   118  (15.1%) |     111  (14.2%) |     4   (0.5%) |     5   (0.6%) | *
| phpmyadmin            |   491 |   481  (98.0%) |    75  (15.3%) |      48   (9.8%) |     2   (0.4%) |     2   (0.4%) | *
| react-native          |   168 |   130  (77.4%) |    79  (47.0%) |      81  (48.2%) |     0   (0.0%) |     0   (0.0%) |
| rust                  |   171 |   128  (74.9%) |    30  (17.5%) |      27  (15.8%) |    16   (9.4%) |    14   (8.2%) |
| spark                 |   186 |   149  (80.1%) |    52  (28.0%) |      52  (28.0%) |     2   (1.1%) |     2   (1.1%) |
| tensorflow            |   115 |    66  (57.4%) |    48  (41.7%) |      48  (41.7%) |     5   (4.3%) |     5   (4.3%) |
| test-more             |    19 |    15  (78.9%) |     2  (10.5%) |       2  (10.5%) |     1   (5.3%) |     1   (5.3%) | *
| test-unit             |    51 |    34  (66.7%) |    14  (27.5%) |       8  (15.7%) |     2   (3.9%) |     2   (3.9%) | *
| xmonad                |    23 |    22  (95.7%) |     2   (8.7%) |       2   (8.7%) |     1   (4.3%) |     1   (4.3%) | *
| --------------------- | ----- | -------------- | -------------- | ---------------- | -------------- | -------------- |
| totals                |  6668 |  4391  (65.9%) |  1496  (22.4%) |    1491  (22.4%) |   150   (2.2%) |   144   (2.2%) |
| totals (training set) |  4552 |  3195  (70.2%) |  1053  (23.1%) |    1061  (23.3%) |    86   (1.9%) |    88   (1.9%) |
| totals (test set)     |  2116 |  1196  (56.5%) |   443  (20.9%) |     430  (20.3%) |    64   (3.0%) |    56   (2.6%) |

In this table, the numbers are the count and percentage of human-rated
sliders that the corresponding algorithm got *wrong*. The columns are

* "repository" - the name of the repository used. I used the diffs
  between successive non-merge commits on the HEAD branch of the
  corresponding repository.

* "count" - the number of sliders that were human-rated. I chose most,
  but not all, sliders to rate from those among which the various
  algorithms gave different answers.

* "Git 2.9.0" - the default algorithm used by `git diff` in Git 2.9.0.

* "compaction" - the heuristic used by `git diff --compaction-heuristic`
  in Git 2.9.0.

* "compaction-fixed" - the heuristic used by `git diff
  --compaction-heuristic` after the fixes from earlier in this patch
  series. Note that the results are not dramatically different than
  those for "compaction". Both produce non-ideal diffs only about 1/3 as
  often as the default `git diff`.

* "indent-1" - the new `--indent-heuristic` algorithm, using the first
  set of weighting factors, determined as described above.

* "indent-2" - the new `--indent-heuristic` algorithm, using the final
  set of weighting factors, determined as described below.

* `*` - indicates that repo was part of training set used to determine
  the first set of weighting factors.

The fact that the heuristic performed nearly as well on the test set as
on the training set in column "indent-1" is a good indication that the
heuristic was not over-trained. Given that fact, I ran a second round of
optimization, using the entire corpus as the training set. The resulting
set of weights gave the results in column "indent-2". These are the
weights included in this patch.

The final result gives consistently and significantly better results
across the whole corpus than either `git diff` or `git diff
--compaction-heuristic`. It makes only about 1/30 as many errors as the
former and about 1/10 as many errors as the latter. (And a good fraction
of the remaining errors are for diffs that involve weirdly-formatted
code, sometimes apparently machine-generated.)

The tools that were used to do this optimization and analysis, along
with the human-generated data values, are recorded in a separate project
[1].

This patch adds a new command-line option `--indent-heuristic`, and a
new configuration setting `diff.indentHeuristic`, that activate this
heuristic. This interface is only meant for testing purposes, and should
be finalized before including this change in any release.

[1] https://github.com/mhagger/diff-slider-tools

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-19 10:25:11 -07:00
Jeff King
46e3d17f57 add--interactive: respect diff.compactionHeuristic
We use plumbing to generate the diff, so it doesn't
automatically pick up UI config like compactionHeuristic.
Let's forward it on, since interactive adding is porcelain.

Note that we only need to handle the "true" case. There's no
point in passing --no-compaction-heuristic when the variable
is false, since nothing else could have turned it on.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-16 11:38:58 -07:00
Jeff King
01143847db add--interactive: allow custom diff highlighting programs
The patch hunk selector of add--interactive knows how ask
git for colorized diffs, and correlate them with the
uncolored diffs we apply. But there's not any way for
somebody who uses a diff-filter tool like contrib's
diff-highlight to see their normal highlighting.

This patch lets users define an arbitrary shell command to
pipe the colorized diff through. The exact output shouldn't
matter (since we just show the result to humans) as long as
it is line-compatible with the original diff (so that
hunk-splitting can split the colorized version, too).

I left two minor issues with the new system that I don't
think are worth fixing right now, but could be done later:

  1. We only filter colorized diffs. Theoretically a user
     could want to filter a non-colorized diff, but I find
     it unlikely in practice. Users who are doing things
     like diff-highlighting are likely to want color, too.

  2. add--interactive will re-colorize a diff which has been
     hand-edited, but it won't have run through the filter.
     Fixing this is conceptually easy (just pipe the diff
     through the filter), but practically hard to do without
     using tempfiles (it would need to feed data to and read
     the result from the filter without deadlocking; this
     raises portability questions with respect to Windows).

I've punted on both issues for now, and if somebody really
cares later, they can do a patch on top.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-28 10:53:54 -08:00
Junio C Hamano
c1fa3e21bc Merge branch 'ak/add-i-empty-candidates'
The interactive "show a list and let the user choose from it"
interface "add -i" used showed and prompted to the user even when
the candidate list was empty, against which the only "choice" the
user could have made was to choose nothing.

* ak/add-i-empty-candidates:
  add -i: return from list_and_choose if there is no candidate
2015-02-17 10:15:20 -08:00
Alexander Kuleshov
a9c4641df7 add -i: return from list_and_choose if there is no candidate
The list_and_choose() helper is given a prompt and a list, asks the
user to make selection from the list, and then returns a list of
items chosen.  Even when it is given an empty list as the original
candidate set to choose from, it gave a prompt to the user, who can
only say "I am done choosing".

Return an empty result when the input is an empty list without
bothering the user.  The existing caller must already have a logic
to say "Nothing to do" or an equivalent when the returned list is
empty (i.e. the user chose to select nothing) if it is necessary, so
no change to the callers is necessary.

This fixes the case where "add untracked" is asked in "git add -i"
and there is no untracked files in the working tree.  We used to give
an empty list of files to choose from with a prompt, but with this
change, we no longer do.

Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-22 14:44:36 -08:00
Jeff King
a8bec7abcc add--interactive: leave main loop on read error
The main hunk loop for add--interactive will loop if it does
not get a known input. This is a good thing if the user
typed some invalid input. However, if we have an
uncorrectable read error, we'll end up looping infinitely.
We can fix this by noticing read errors (i.e., <STDIN>
returns undef) and breaking out of the loop.

One easy way to trigger this is if you have an editor that
does not take over the terminal (e.g., one that spawns a
window in an existing process and waits), start the editor
with the hunk-edit command, and hit ^C to send SIGINT. The
editor process dies due to SIGINT, but the perl
add--interactive process does not (perl suspends SIGINT for
the duration of our system() call).

We return to the main loop, but further reads from stdin
don't work. The SIGINT _also_ killed our parent git process,
which orphans our process group, meaning that further reads
from the terminal will always fail. We loop infinitely,
getting EIO on each read.

Note that there are several other spots where we read from
stdin, too. However, in each of those cases, we do something
sane when the read returns undef (breaking out of the loop,
taking the input as "no", etc). They don't need similar
treatment.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-15 10:12:20 -08:00
Junio C Hamano
d59c12d7ad Merge branch 'jl/nor-or-nand-and'
Eradicate mistaken use of "nor" (that is, essentially "nor" used
not in "neither A nor B" ;-)) from in-code comments, command output
strings, and documentations.

* jl/nor-or-nand-and:
  code and test: fix misuses of "nor"
  comments: fix misuses of "nor"
  contrib: fix misuses of "nor"
  Documentation: fix misuses of "nor"
2014-04-08 12:00:28 -07:00
Justin Lebar
235e8d5914 code and test: fix misuses of "nor"
Signed-off-by: Justin Lebar <jlebar@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-31 15:29:33 -07:00
Simon Ruderich
b294097bc6 git-add--interactive: warn if module for interactive.singlekey is missing
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Simon Ruderich <simon@ruderich.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-03 14:11:18 -08:00
Jeff King
954312a3ff add-interactive: handle unborn branch in patch mode
The list_modified function already knows how to handle an
unborn branch by diffing against the empty tree. However,
the diff we perform to get the actual hunks does not. Let's
use the same logic for both diffs.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-25 14:54:17 -07:00
Johannes Sixt
df17e77c0a add--interactive: fix external command invocation on Windows
Back in 21e9757e (Hack git-add--interactive to make it work with
ActiveState Perl, 2007-08-01), the invocation of external commands was
changed to use qx{} on Windows. The rationale was that the command
interpreter on Windows is not a POSIX shell, but rather Windows's CMD.
That patch was wrong to include 'msys' in the check whether to use qx{}
or not: 'msys' identifies MSYS perl as shipped with Git for Windows,
which does not need the special treatment; qx{} should be used only with
ActiveState perl, which is identified by 'MSWin32'.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-04 10:35:25 -07:00
Junio C Hamano
e5c2909782 add -i: add extra options at the right place in "diff" command line
Appending "--diff-algorithm=histogram" at the end of canned command
line for various modes of "diff" is correct for most of them but not
for "stash" that has a non-option already wired in, like so:

	'stash' => {
		DIFF => 'diff-index -p HEAD',

Appending an extra option after non-option may happen to work due to
overly lax command line parser, but that is not something we should
rely on.  Instead, splice in the extra argument immediately after the
command name (i.e. 'diff-index', 'diff-files', etc.).

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-23 13:39:39 -07:00
John Keeping
2cc0f53b53 add--interactive: respect diff.algorithm
When staging hunks interactively it is sometimes useful to use an
alternative diff algorithm which splits the changes into hunks in a more
logical manner.  This is not possible because the plumbing commands
called by add--interactive ignore the "diff.algorithm" configuration
option (as they should).

Since add--interactive is a porcelain command it should respect this
configuration variable.  To do this, make it read diff.algorithm and
pass its value to the underlying diff-index and diff-files invocations.

At this point, do not add options to "git add", "git reset" or "git
checkout" (all of which can call git-add--interactive).  If a user
wants to override the value on the command line they can use:

	git -c diff.algorithm=$ALGO ...

Signed-off-by: John Keeping <john@keeping.me.uk>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-12 13:41:19 -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
Thomas Badie
70969f775d git-add--interactive.perl: Remove two unused variables
The patch 8f0bef6 refactored this script and made the variable $fh
unneeded in subs diff_applies and patch_update_file, but forgot to
remove them.

Signed-off-by: Thomas Badie <badie@lrde.epita.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-25 10:06:09 -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
Thomas Rast
b5cc003253 add -i: ignore terminal escape sequences
On the author's terminal, the up-arrow input sequence is ^[[A, and
thus fat-fingering an up-arrow into 'git checkout -p' is quite
dangerous: git-add--interactive.perl will ignore the ^[ and [
characters and happily treat A as "discard everything".

As a band-aid fix, use Term::Cap to get all terminal capabilities.
Then use the heuristic that any capability value that starts with ^[
(i.e., \e in perl) must be a key input sequence.  Finally, given an
input that starts with ^[, read more characters until we have read a
full escape sequence, then return that to the caller.  We use a
timeout of 0.5 seconds on the subsequent reads to avoid getting stuck
if the user actually input a lone ^[.

Since none of the currently recognized keys start with ^[, the net
result is that the sequence as a whole will be ignored and the help
displayed.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-17 20:44:17 -07:00
Junio C Hamano
933e44d3a0 "add -p": work-around an old laziness that does not coalesce hunks
Since 0beee4c (git-add--interactive: remove hunk coalescing, 2008-07-02),
"git add--interactive" behaves lazily and passes overlapping hunks to the
underlying "git apply" without coalescing.  This was partially corrected
by 7a26e65 (its partial revert, 2009-05-16), but overlapping hunks are
still passed when the patch is edited.

Teach "git apply" the --allow-overlap option that disables a safety
feature that avoids misapplication of patches by not applying patches
to overlapping hunks, and pass this option form "add -p" codepath.

Do not even advertise the option, as this is merely a workaround, and the
correct fix is to make "add -p" correctly coalesce adjacent patch hunks.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-29 15:27:59 -07:00
Junio C Hamano
9dce832354 add--interactive.perl: factor out repeated --recount option
Depending on the direction and the target of patch application, we would
need to pass --cached and --reverse to underlying "git apply".  Also we
only pass --check when we are not applying but just checking.

But we always pass --recount since 8cbd431 (git-add--interactive: replace
hunk recounting with apply --recount, 2008-07-02).  Instead of repeating
the same --recount over and over again, move it to a single place that
actually runs the command, namely, "run_git_apply" subroutine.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-29 15:27:59 -07:00
Junio C Hamano
f5ea3f2bb3 add -p: 'q' should really quit
The "quit" command was added in 9a7a1e0 (git add -p: new "quit" command at
the prompt, 2009-04-10) to allow the user to say that hunks other than
what have already been chosen are undesirable, and exit the interactive
loop immediately.  It forgot that there may be an undecided hunk before
the current one.  In such a case, the interactive loop still goes back to
the beginning.

Clear all the USE bit for undecided hunks and exit the loop.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-29 15:25:03 -07:00
Junio C Hamano
1aa6583cc2 Merge branch 'jl/add-p-reverse-message'
* jl/add-p-reverse-message:
  Correct help blurb in checkout -p and friends
2010-11-29 17:52:34 -08:00
Jonathan "Duke" Leto
7b8c705188 Correct help blurb in checkout -p and friends
When git checkout -p from the index or HEAD is run in edit mode, the
help message about removing '-' and '+' lines was backwards. Because it
is reverse applying the patch, the meanings of '-' and '+' are reversed.

Signed-off-by: Jonathan "Duke" Leto <jonathan@leto.net>
Acked-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-28 15:28:39 -07:00
Ævar Arnfjörð Bjarmason
3328acedc6 perl: use "use warnings" instead of -w
Change the Perl scripts to turn on lexical warnings instead of setting
the global $^W variable via the -w switch.

The -w sets warnings for all code that interpreter runs, while "use
warnings" is lexically scoped. The former is probably not what the
authors wanted.

As an auxiliary benefit it's now possible to build Git with:

    PERL_PATH='/usr/bin/env perl'

Which would previously result in failures, since "#!/usr/bin/env perl -w"
doesn't work as a shebang.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-27 12:37:56 -07:00
Ævar Arnfjörð Bjarmason
d48b284183 perl: bump the required Perl version to 5.8 from 5.6.[21]
Formalize our dependency on perl 5.8, bumped from 5.6.[12]. We already
used the three-arg form of open() which was introduced in 5.6.1, but
t/t9700/test.pl explicitly depended on 5.6.2.

However git-add--interactive.pl has been failing on the 5.6 line since
it was introduced in v1.5.0-rc0~12^2~2 back in 2006 due to this open
syntax:

    sub run_cmd_pipe {
           my $fh = undef;
           open($fh, '-|', @_) or die;
           return <$fh>;
    }

Which when executed dies on "Can't use an undefined value as
filehandle reference". Several of our tests also fail on 5.6 (even
more when compiled with NO_PERL_MAKEMAKER=1):

    t2016-checkout-patch.sh
    t3904-stash-patch.sh
    t3701-add-interactive.sh
    t7105-reset-patch.sh
    t7501-commit.sh
    t9700-perl-git.sh

Our code is bitrotting on 5.6 with no-one interested in fixing it, and
pinning us to such an ancient release of Perl is keeping us from using
useful features introduced in the 5.8 release.

The 5.6 series is now over 10 years old, and the 5.6.2 maintenance
release almost 7. 5.8 on the other hand is more than 8 years old.

All the modern Unix-like operating systems have now upgraded to it or
a later version, and 5.8 packages are available for old IRIX, AIX
Solaris and Tru64 systems.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Tor Arntsen <tor@spacetec.no>
Acked-by: Randal L. Schwartz <merlyn@stonehenge.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-27 12:37:41 -07:00
Jonathan Nieder
74e42ce122 add-interactive: Clarify “remaining hunks in the file”
The "a" and "d" commands to ‘add --patch’ (accept/reject rest of file)
interact with "j", "g", and "/" (skip some hunks) in a perhaps
confusing way: after accepting or rejecting all _later_ hunks in the
file, they return to the earlier, skipped hunks and prompt the user
about them again.

This behavior can be very useful in practice.  One can still accept or
reject _all_ undecided hunks in a file by using the "g" command to
move to hunk #1 first.

Reported-by: Frédéric Brière <fbriere@fbriere.net>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-13 10:05:02 -07:00
Junio C Hamano
9382587467 Merge branch 'jk/maint-add--interactive-delete'
* jk/maint-add--interactive-delete:
  add-interactive: fix bogus diff header line ordering
2010-03-07 12:47:14 -08:00
Jeff King
e1327ed5fb add-interactive: fix bogus diff header line ordering
When we look at a patch for adding hunks interactively, we
first split it into a header and a list of hunks. Some of
the header lines, such as mode changes and deletion, however,
become their own selectable hunks. Later when we reassemble
the patch, we simply concatenate the header and the selected
hunks. This leads to patches like this:

  diff --git a/file b/file
  index d95f3ad..0000000
  --- a/file
  +++ /dev/null
  deleted file mode 100644
  @@ -1 +0,0 @@
  -content

Notice how the deletion comes _after_ the ---/+++ lines,
when it should come before.

In many cases, we can get away with this as git-apply
accepts the slightly bogus input. However, in the specific
case of a deletion line that is being applied via "apply
-R", this malformed patch triggers an assert in git-apply.
This comes up when discarding a deletion via "git checkout
-p".

Rather than try to make git-apply accept our odd input,
let's just reassemble the patch in the correct order.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-22 19:23:49 -08:00
Junio C Hamano
ff86bdd5ca Merge branch 'maint'
* maint:
  add-interactive: fix deletion of non-empty files
  pull: clarify advice for the unconfigured error case
2009-12-08 22:47:09 -08:00
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
376f39fbea Merge branch 'jn/editor-pager'
* jn/editor-pager:
  Provide a build time default-pager setting
  Provide a build time default-editor setting
  am -i, git-svn: use "git var GIT_PAGER"
  add -i, send-email, svn, p4, etc: use "git var GIT_EDITOR"
  Teach git var about GIT_PAGER
  Teach git var about GIT_EDITOR
  Suppress warnings from "git var -l"
  Do not use VISUAL editor on dumb terminals
  Handle more shell metacharacters in editor names
2009-11-20 23:48:52 -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
Junio C Hamano
3176bd0b0d Merge branch 'jk/maint-add-p-empty'
* jk/maint-add-p-empty:
  add-interactive: handle deletion of empty files
2009-11-15 16:40:46 -08:00
Jonathan Nieder
b4479f0747 add -i, send-email, svn, p4, etc: use "git var GIT_EDITOR"
Use the new "git var GIT_EDITOR" feature to decide what editor to
use, instead of duplicating its logic elsewhere.  This should make
the behavior of commands in edge cases (e.g., editor names with
spaces) a little more consistent.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-13 12:20:50 -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
Junio C Hamano
70ed433c2b Merge branch 'pv/maint-add-p-no-exclude' into maint
* pv/maint-add-p-no-exclude:
  git-add--interactive: never skip files included in index
2009-10-23 22:29:19 -07:00
Junio C Hamano
c274db7057 Merge branch 'pv/maint-add-p-no-exclude'
* pv/maint-add-p-no-exclude:
  git-add--interactive: never skip files included in index
2009-10-14 16:13:20 -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
54f0bdc811 Merge branch 'tr/reset-checkout-patch'
* tr/reset-checkout-patch:
  stash: simplify defaulting to "save" and reject unknown options
  Make test case number unique
  tests: disable interactive hunk selection tests if perl is not available
  DWIM 'git stash save -p' for 'git stash -p'
  Implement 'git stash save --patch'
  Implement 'git checkout --patch'
  Implement 'git reset --patch'
  builtin-add: refactor the meat of interactive_add()
  Add a small patch-mode testing library
  git-apply--interactive: Refactor patch mode code
  Make 'git stash -k' a short form for 'git stash save --keep-index'
2009-09-07 15:24:38 -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
dda1f2a5c3 Implement 'git stash save --patch'
This adds a hunk-based mode to git-stash.  You can select hunks from
the difference between HEAD and worktree, and git-stash will build a
stash that reflects these changes.  The index state of the stash is
the same as your current index, and we also let --patch imply
--keep-index.

Note that because the selected hunks are rolled back from the worktree
but not the index, the resulting state may appear somewhat confusing
if you had also staged these changes.  This is not entirely
satisfactory, but due to the way stashes are applied, other solutions
would require a change to the stash format.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-15 15:19:31 -07:00
Thomas Rast
4f353658b9 Implement 'git checkout --patch'
This introduces a --patch mode for git-checkout.  In the index usage

  git checkout --patch -- [files...]

it lets the user discard edits from the <files> at the granularity of
hunks (by selecting hunks from 'git diff' and then reverse applying
them to the worktree).

We also accept a revision argument.  In the case

  git checkout --patch HEAD -- [files...]

we offer hunks from the difference between HEAD and the worktree, and
reverse applies them to both index and worktree, allowing you to
discard staged changes completely.  In the non-HEAD usage

  git checkout --patch <revision> -- [files...]

it offers hunks from the difference between the worktree and
<revision>.  The chosen hunks are then applied to both index and
worktree.

The application to worktree and index is done "atomically" in the
sense that we first check if the patch applies to the index (it should
always apply to the worktree).  If it does not, we give the user a
choice to either abort or apply to the worktree anyway.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-15 15:18:05 -07:00
Thomas Rast
d002ef4d94 Implement 'git reset --patch'
This introduces a --patch mode for git-reset.  The basic case is

  git reset --patch -- [files...]

which acts as the opposite of 'git add --patch -- [files...]': it
offers hunks for *un*staging.  Advanced usage is

  git reset --patch <revision> -- [files...]

which offers hunks from the diff between the index and <revision> for
forward application to the index.  (That is, the basic case is just
<revision> = HEAD.)

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-15 15:17:47 -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
Thomas Rast
8f0bef6df9 git-apply--interactive: Refactor patch mode code
This makes some aspects of the 'git add -p' loop configurable (within
the code), so that we can later reuse git-add--interactive for other
similar tools.

Most fields are fairly straightforward, but APPLY gets a subroutine
(instead of just a string a la 'apply --cached') so that we can handle
'checkout -p', which will need to atomically apply the patch twice
(index and worktree).

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-14 12:40:09 -07:00
Thomas Rast
8dc3a47c3e add -i: do not dump patch during application
Remove a debugging print that snuck in at 7a26e65 (Revert
"git-add--interactive: remove hunk coalescing", 2009-05-16).

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-03 00:11:15 -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
Junio C Hamano
21590d5262 Merge branch 'mm/maint-add-p-quit'
* mm/maint-add-p-quit:
  git add -p: add missing "q" to patch prompt
2009-04-20 03:39:38 -07:00
Wincent Colaiuta
a2fc8d6536 git add -p: add missing "q" to patch prompt
Commit cbd3a01 added a new "q" subcommand to the "git add -p"
command loop, but forgot to add it to the prompt.

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-20 03:38:44 -07:00
Jeff King
7535e5a16a add-interactive: refactor mode hunk handling
The original implementation considered the mode separately
from the rest of the hunks, asking about it outside the main
hunk-selection loop. This patch instead places a mode change
as the first hunk in the loop. This has two advantages:

  1. less duplicated code (since we use the main selection
     loop). This also cleans up an inconsistency, which is
     that the main selection loop separates options with a
     comma, whereas the mode prompt used slashes.

  2. users can now skip the mode change and come back to it,
     search for it (via "/mode"), etc, as they can with other
     hunks.

To facilitate this, each hunk is now marked with a "type".
Mode hunks are not considered for splitting (which would
make no sense, and also confuses the split_hunk function),
nor are they editable. In theory, one could edit the mode
lines and change to a new mode. In practice, there are only
two modes that git cares about (0644 and 0755), so either
you want to move from one to the other or not (and you can
do that by staging or not staging).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-19 12:35:38 -07:00
Matthieu Moy
cbd3a01ed8 git add -p: new "quit" command at the prompt.
There's already 'd' to stop staging hunks in a file, but no explicit
command to stop the interactive staging (for the current files and the
remaining ones).  Of course you can do 'd' and then ^C, but it would be
more intuitive to allow 'quit' action.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-19 12:35:37 -07:00
Jeff King
0392513fdc add-interactive: refactor mode hunk handling
The original implementation considered the mode separately
from the rest of the hunks, asking about it outside the main
hunk-selection loop. This patch instead places a mode change
as the first hunk in the loop. This has two advantages:

  1. less duplicated code (since we use the main selection
     loop). This also cleans up an inconsistency, which is
     that the main selection loop separates options with a
     comma, whereas the mode prompt used slashes.

  2. users can now skip the mode change and come back to it,
     search for it (via "/mode"), etc, as they can with other
     hunks.

To facilitate this, each hunk is now marked with a "type".
Mode hunks are not considered for splitting (which would
make no sense, and also confuses the split_hunk function),
nor are they editable. In theory, one could edit the mode
lines and change to a new mode. In practice, there are only
two modes that git cares about (0644 and 0755), so either
you want to move from one to the other or not (and you can
do that by staging or not staging).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-16 01:06:52 -07:00
Matthieu Moy
9a7a1e03d5 git add -p: new "quit" command at the prompt.
There's already 'd' to stop staging hunks in a file, but no explicit
command to stop the interactive staging (for the current files and the
remaining ones).  Of course you can do 'd' and then ^C, but it would be
more intuitive to allow 'quit' action.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-15 19:41:35 -07:00
Junio C Hamano
db2255725d Merge branch 'jc/add-p-unquote'
* jc/add-p-unquote:
  git-add -i/-p: learn to unwrap C-quoted paths
2009-03-05 15:41:41 -08:00
Junio C Hamano
8851f4800c git-add -i/-p: learn to unwrap C-quoted paths
The underlying plumbing commands are not run with -z option, so the paths
returned from them need to be unquoted as needed.

Remove the now stale BUGS section from git-add documentaiton as suggested
by Teemu Likonen.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-18 10:53:49 -08:00
Deskin Miller
1d398a0390 add -i: revisit hunk on editor failure
Similar to the behaviour for editing a commit message, let terminating
the editor with a failure abort the current hunk edit and revisit the
option selection for the hunk.

Signed-off-by: Deskin Miller <deskinm@umich.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-11 23:51:15 -08:00
Stephan Beyer
9aad6cbaef add -p: get rid of Git.pm warnings about unitialized values
After invoking git add -p I always got the warnings:

 Use of uninitialized value $_[3] in exec at Git.pm line 1282.
 Use of uninitialized value $args[2] in join or string at Git.pm line 1264.

A bisect showed that these warnings occur in a301973 "add -p: print errors
in separate color" the first time.

They can be reproduced by setting color.ui (or color.interactive) to "auto"
and unsetting color.interactive.help and color.interactive.error.
I am using Perl 5.10.0.

The reason of the warning is that color.interactive.error defaults to
color.interactive.help which defaults to nothing in the specific codepath.
It defaults to 'red bold' some lines above which could lead to the wrong
assumption that it always defaults to 'red bold' now.

This patch lets it default to 'red bold', blowing the warnings away.

Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Acked-By: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-08 13:06:33 -08:00
Thomas Rast
748aa689ba add -p: import Term::ReadKey with 'require'
eval{use...} is no good because the 'use' is evaluated at compile
time, so manually 'require' it.  We need to forward declare the
functions we use, otherwise Perl raises a compilation error.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-07 00:37:36 -08:00
Thomas Rast
a301973641 add -p: print errors in separate color
Print interaction error messages in color.interactive.error, which
defaults to the value of color.interactive.help.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-05 17:44:39 -08:00
Thomas Rast
ca6ac7f135 add -p: prompt for single characters
Use Term::ReadKey, if available and enabled with interactive.singlekey,
to let the user answer add -p's prompts by pressing a single key.  We're
not doing the same in the main 'add -i' interface because file selection
etc. may expect several characters.

Two commands take an argument: 'g' can easily cope since it'll just
offer a choice of chunks.  '/' now (unconditionally, even without
readkey) offers a chance to enter a regex if none was given.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-05 17:44:10 -08:00
Thomas Rast
68c02d7c46 add -p: trap Ctrl-D in 'goto' mode
If the user hit Ctrl-D (EOF) while the script was in 'go to hunk?'
mode, it threw an undefined variable error.  Explicitly test for EOF
and have it re-enter the goto prompt loop.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-04 00:52:52 -08:00
Thomas Rast
4404b2e392 add -p: change prompt separator for 'g'
57886bc (git-add -i/-p: Change prompt separater from slash to comma,
2008-11-27) changed the prompt separator to ',', but forgot to adapt
the 'g' (goto) command.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-04 00:52:27 -08:00
William Pursell
ace30ba813 In add --patch, Handle K,k,J,j slightly more gracefully.
Instead of printing the help menu, this will print "No next hunk" and then
process the given hunk again.

Signed-off-by: William Pursell <bill.pursell@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-01 19:43:38 -08:00
William Pursell
dd971cc9d6 Add / command in add --patch
This command allows the user to skip hunks that don't match the specified
regex.

Signed-off-by: William Pursell <bill.pursell@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-01 19:43:38 -08:00
William Pursell
57886bc7fb git-add -i/-p: Change prompt separater from slash to comma
Otherwise the find command '/' soon to be introduced will be hard to see.

Signed-off-by: William Pursell <bill.pursell@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-01 19:43:37 -08:00
William Pursell
070434d02b Add 'g' command to go to a hunk
When a minor change is made while the working directory is in a bit of a
mess, it is somewhat difficult to wade through all of the hunks using git
add --patch.  This allows one to jump to the hunk that needs to be staged
without having to respond 'n' to each preceding hunk.

Signed-off-by: William Pursell <bill.pursell@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-04 17:59:45 -08:00
William Pursell
3f6aff6889 Add subroutine to display one-line summary of hunks
This commit implements a rather simple-minded mechanism to display a
one-line summary of the hunks in an array ref.  The display consists of
the line numbers and the first changed line, truncated to 80 characters.
20 lines are displayed at a time, and the index of the first undisplayed
line is returned, allowing the caller to display more if desired.  (The 20
and 80 should be made configurable.)

Signed-off-by: William Pursell <bill.pursell@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-04 17:59:41 -08:00
Thomas Rast
9fe7a643fc add -p: warn if only binary changes present
Current 'git add -p' will say "No changes." if there are no changes to
text files, which can be confusing if there _are_ changes to binary
files.  Add some code to distinguish the two cases, and give a
different message in the latter one.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-26 16:20:24 -07:00
Junio C Hamano
223bb84572 Merge branch 'sp/win'
* sp/win:
  We need to check for msys as well as Windows in add--interactive.
  Convert CR/LF to LF in tag signatures
  Fixed text file auto-detection: treat EOF character 032 at the end of file as printable
2008-07-15 18:59:45 -07:00
Ciaran McCreesh
1e5aaa6db3 Make git-add -i accept ranges like 7-
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>
2008-07-15 07:37:00 -07:00
Mike Pape
fdfd200802 We need to check for msys as well as Windows in add--interactive.
Signed-off-by: Mike Pape <dotzenlabs@gmail.com>
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-11 21:14:44 -07:00
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
Thomas Rast
0beee4c6de git-add--interactive: remove hunk coalescing
Current git-apply has no trouble at all applying chunks that have
overlapping context, as produced by the splitting feature. So we can
drop the manual coalescing.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-02 15:31:29 -07:00
Thomas Rast
8cbd431082 git-add--interactive: replace hunk recounting with apply --recount
We recounted the postimage offsets to compensate for hunks that were
not selected.  Now apply --recount can do the job for us.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-02 15:31:12 -07:00
Jeff King
ca7246864b add--interactive: allow user to choose mode update
When using the 'p'atch command, instead of just throwing out any mode
change, present it to the user in the same way that we show hunks.

This way, the mode change can be staged independently from the changes
to the contents.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-27 13:54:57 -07:00
Jeff King
b717a62762 add--interactive: ignore mode change in 'p'atch command
When a path is examined in the patch subcommand, any mode changes in
the file are given to use in the diff header by git-diff. If no hunks
are staged, then we throw out that header and do not touch the
path.  But if _any_ hunks are staged, we use the header, and the mode
is changed together with the contents.

Since the 'p'atch command should just be dealing with hunks that are
shown to the user, it makes sense to just ignore mode changes
entirely. We do squirrel away the mode, though, since the next patch
will allow users to select the mode update separately.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-27 13:54:56 -07:00
Jeff King
18bc76164d add--interactive: handle initial commit better
There were several points where we looked at the HEAD
commit; for initial commits, this is meaningless. So instead
we:

  - show staged status data as a diff against the empty tree
    instead of HEAD
  - show file diffs as creation events
  - use "git rm --cached" to revert instead of going back to
    the HEAD commit

We magically reference the empty tree to implement this.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-16 01:02:44 -08:00
Jeff King
f87e310d2c add--interactive: allow diff colors without interactive colors
Users with color.diff set to true/auto will not see color in
"git add -i" unless they also set color.interactive.

This changes the semantics of color.interactive to control only the
coloring of the interaction aspect of the command and let color.diff
to control the color of hunk picker, which would arguably be more
convenient.

Old $use_color variable is now renamed to $menu_use_color to make it
clear that it is about coloring the interaction.

The "colored" subroutine now checks if the passed color is defined,
instead of checking $use_color variable, to decide if the lines should
be colored.  The various variables that define colors for different
parts of the output are set or unset depending on the setting of
color.interactive and color.diff configuration variables.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-06 18:41:44 -08:00
Jeff King
50e3d1eeff add--interactive: remove unused diff colors
When color support was added, we colored the diffs ourselves.
However, 4af756f3 changed this to simply run "git diff-files"
twice, keeping the colored output separately.

This makes the internal diff color variables obsolete with
one exception: when splitting hunks, we have to manually
recreate the fragment for each part of the split. Thus we
keep $fraginfo_color around to do that correctly.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-06 18:41:44 -08:00
Wincent Colaiuta
4af756f31b Teach "git add -i" to colorize whitespace errors
Rather than replicating the colorization logic of "git diff-files" we
rely on "git diff-files" itself. This guarantees consistent colorization
in and outside "git add -i".

Seeing as speed is not a concern here (the bottleneck is how fast the
user can read, not how fast "git diff-files" runs) we do this by
actually running it twice, once without color and once with.

In this way as the whitespace colorization provided by "git diff-files"
evolves (per-path attributes, new classes of whitespace error), "git
add -i" will automatically benefit from it and stay in synch.

Also, by working with two sets of diff output (an uncolorized one for
internal processing and a colorized one for display only) we minimize
the risk of regressions because the changes required to implement this
are minimally invasive.

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-08 02:53:19 -08:00
Junio C Hamano
b4c61ed6d3 Color support for "git-add -i"
This is mostly lifted from earlier series by Dan Zwell, but updated to
use "git config --get-color" and "git config --get-colorbool" to make it
simpler and more consistent with commands written in C.

A new configuration color.interactive variable is like color.diff and
color.status, and controls if "git-add -i" uses color.

A set of configuration variables, color.interactive.<slot>, are used to
define what color is used for the prompt, header, and help text.

For perl scripts, Git.pm provides $repo->get_color() method, which takes
the slot name and the default color, and returns the terminal escape
sequence to color the output text.  $repo->get_colorbool() method can be
used to check if color is set to be used for a given operation.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-05 17:57:11 -08:00
Wincent Colaiuta
7e018be2ad git-add -i: add help text for list-and-choose UI
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-03 01:04:28 -08:00
Wincent Colaiuta
633209898b add -i: allow prefix highlighting for "Add untracked" as well.
These changes make the automatic prefix highlighting work with the "Add
untracked" subcommand in git-add--interactive by explicitly handling
arrays, hashes and strings internally (previously only arrays and hashes
were handled).

In addition, prefixes which have special meaning for list_and_choose
(things like "*" for "all" and "-" for "deselect) are explicitly
excluded (highlighting these prefixes would be misleading).

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-02 11:09:22 -08:00
Wincent Colaiuta
14cb50382c Highlight keyboard shortcuts in git-add--interactive
The user interface provided by the command loop in git-add--interactive
gives the impression that subcommands can only be launched by entering
an integer identifier from 1 through 8.

A "hidden" feature is that any string can be entered, and a regex search
anchored at the beginning of the string is used to find the uniquely
matching option.

This patch makes this feature a little more obvious by highlighting the
first character of each subcommand (for example "patch" is displayed as
"[p]atch").

A new function is added to detect the shortest unique prefix and this
is used to decide what to highlight. Highlighting is also applied when
choosing files.

In the case where the common prefix may be unreasonably large
highlighting is omitted; in this patch the soft limit (above which the
highlighting will be omitted for a particular item) is 0 (in other words,
there is no soft limit) and the hard limit (above which highlighting will
be omitted for all items) is 3, but this can be tweaked.

The actual highlighting is done by the highlight_prefix function, which
will enable us to implement ANSI color code-based highlighting (most
likely using underline or boldface) in the future.

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-30 12:37:40 -08:00
Ralf Wildenhues
280e50c7e5 Document all help keys in "git add -i" patch mode.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-28 15:46:46 -08:00
Wincent Colaiuta
b63e995001 Add "--patch" option to git-add--interactive
When the "--patch" option is supplied, the patch_update_cmd() function is
called bypassing the main_loop() and exits.

Seeing as builtin-add is the only caller of git-add--interactive we can
impose a strict requirement on the format of the arguments to avoid
possible ambiguity: an "--" argument must be used whenever any pathspecs
are passed, both with the "--patch" option and without it.

Signed-off-by: Wincent Colaiuta <win@wincent.com>
2007-11-25 11:37:55 -08:00
Junio C Hamano
12db334e75 git-add -i: allow multiple selection in patch subcommand
This allows more than one files from the list to be chosen from
the patch subcommand instead of going through the file one by
one.

This also updates the "list-and-choose" UI for usability.  When
the prompt ends with ">>", if you type '*' to choose all
choices, the prompt immediately returns the choice without
requiring an extra empty line to confirm the selection.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-22 18:23:55 -08:00
Wincent Colaiuta
4c8416847a Add path-limiting to git-add--interactive
Implement Junio's suggestion that git-add--interactive should reproduce the
path-limiting semantics of non-interactive git-add.

In otherwords, if "git add -i" (unrestricted) shows paths from a set A,
"git add -i paths..." should show paths from a subset of the set A and that
subset should be defined with the existing ls-files pathspec semantics.

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-22 02:53:40 -08:00
Wincent Colaiuta
a7d9da6c97 Refactor patch_update_cmd
Split patch_update_cmd into two functions, one to prompt the user for
a path to patch and another to do the actual work given that file path.
This lays the groundwork for a future commit which will teach
git-add--interactive to accept a path parameter and jump directly to
the patch subcommand for that path, bypassing the interactive prompt.

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-22 00:51:56 -08:00
Jeff King
8e7b07c8a7 git-ls-files: add --exclude-standard
This provides a way for scripts to get at the new standard exclude
function.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-15 22:24:10 -08:00
Jean-Luc Herren
7b40a4552a git add -i: Remove unused variables
Signed-off-by: Jean-Luc Herren <jlh@gmx.ch>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-10-15 21:00:40 -04:00
Jean-Luc Herren
7288ed8ebd git add -i: Fix parsing of abbreviated hunk headers
The unified diff format allows one-line ranges to be abbreviated
by omiting the size.  The hunk header "@@ -10,1 +10,1 @@" can be
expressed as "@@ -10 +10 @@", but this wasn't properly parsed in
all cases.

Such abbreviated hunk headers are generated when a one-line change
(add, remove or modify) appears without context; for example
because the file is a one-liner itself or because GIT_DIFF_OPTS
was set to '-u0'.  If the user then runs 'git add -i' and enters
the 'patch' command for that file, perl complains about undefined
variables.

Signed-off-by: Jean-Luc Herren <jlh@gmx.ch>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-10-15 21:00:40 -04:00