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diff options: Introduce --ignore-submodules

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The new option --ignore-submodules can now be used to ignore changes in
submodules.

Why?  Sometimes it is not interesting when a submodule changed.

For example, when reordering some commits in the superproject, a dirty
submodule is usually totally uninteresting.  So we will use this option
in git-rebase to test for a dirty working tree.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2008-05-14 18:03:31 +01:00 committed by Junio C Hamano
parent 4b172de81b
commit 50fd9bd843
3 changed files with 13 additions and 0 deletions
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3
Documentation/diff-options.txt
View File

@ -228,6 +228,9 @@ endif::git-format-patch[]
--no-ext-diff::
Disallow external diff drivers.
--ignore-submodules::
Ignore changes to submodules in the diff generation.
--src-prefix=<prefix>::
Show the given source prefix instead of "a/".

9
diff.c
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@ -2496,6 +2496,8 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
DIFF_OPT_SET(options, ALLOW_EXTERNAL);
else if (!strcmp(arg, "--no-ext-diff"))
DIFF_OPT_CLR(options, ALLOW_EXTERNAL);
else if (!strcmp(arg, "--ignore-submodules"))
DIFF_OPT_SET(options, IGNORE_SUBMODULES);
/* misc options */
else if (!strcmp(arg, "-z"))
@ -3355,6 +3357,9 @@ void diff_addremove(struct diff_options *options,
char concatpath[PATH_MAX];
struct diff_filespec *one, *two;
if (DIFF_OPT_TST(options, IGNORE_SUBMODULES) && S_ISGITLINK(mode))
return;
/* This may look odd, but it is a preparation for
* feeding "there are unchanged files which should
* not produce diffs, but when you are doing copy
@ -3399,6 +3404,10 @@ void diff_change(struct diff_options *options,
char concatpath[PATH_MAX];
struct diff_filespec *one, *two;
if (DIFF_OPT_TST(options, IGNORE_SUBMODULES) && S_ISGITLINK(old_mode)
&& S_ISGITLINK(new_mode))
return;
if (DIFF_OPT_TST(options, REVERSE_DIFF)) {
unsigned tmp;
const unsigned char *tmp_c;

1
diff.h
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@ -63,6 +63,7 @@ typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
#define DIFF_OPT_REVERSE_DIFF (1 << 15)
#define DIFF_OPT_CHECK_FAILED (1 << 16)
#define DIFF_OPT_RELATIVE_NAME (1 << 17)
#define DIFF_OPT_IGNORE_SUBMODULES (1 << 18)
#define DIFF_OPT_TST(opts, flag) ((opts)->flags & DIFF_OPT_##flag)
#define DIFF_OPT_SET(opts, flag) ((opts)->flags |= DIFF_OPT_##flag)
#define DIFF_OPT_CLR(opts, flag) ((opts)->flags &= ~DIFF_OPT_##flag)