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authorJohannes Schindelin <Johannes.Schindelin@gmx.de>2008-05-14 18:03:31 +0100
committerJunio C Hamano <gitster@pobox.com>2008-05-15 16:12:40 -0700
commit50fd9bd8430a957ea6c6674ce6112f375985abbc (patch)
tree1e7243c03179dfef1d7ef7c81cdc1d86159ab53d
parent4b172de81b878cdc8b10803fd0cd79b3ca66a621 (diff)
downloadgit-50fd9bd8430a957ea6c6674ce6112f375985abbc.tar.gz
git-50fd9bd8430a957ea6c6674ce6112f375985abbc.tar.xz
diff options: Introduce --ignore-submodules
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>
-rw-r--r--Documentation/diff-options.txt3
-rw-r--r--diff.c9
-rw-r--r--diff.h1
3 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 13234fa28..859d67990 100644
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -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/".
diff --git a/diff.c b/diff.c
index 439d4746c..d57bc299e 100644
--- a/diff.c
+++ b/diff.c
@@ -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;
diff --git a/diff.h b/diff.h
index 3a02d38d1..1dfe1f98b 100644
--- a/diff.h
+++ b/diff.h
@@ -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)