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-rw-r--r--diff.c38
1 files changed, 33 insertions, 5 deletions
diff --git a/diff.c b/diff.c
index 08bbd3e90..57aa72c6c 100644
--- a/diff.c
+++ b/diff.c
@@ -2551,6 +2551,20 @@ int diff_setup_done(struct diff_options *options)
if (count > 1)
die("--name-only, --name-status, --check and -s are mutually exclusive");
+ /*
+ * Most of the time we can say "there are changes"
+ * only by checking if there are changed paths, but
+ * --ignore-whitespace* options force us to look
+ * inside contents.
+ */
+
+ if (DIFF_XDL_TST(options, IGNORE_WHITESPACE) ||
+ DIFF_XDL_TST(options, IGNORE_WHITESPACE_CHANGE) ||
+ DIFF_XDL_TST(options, IGNORE_WHITESPACE_AT_EOL))
+ DIFF_OPT_SET(options, DIFF_FROM_CONTENTS);
+ else
+ DIFF_OPT_CLR(options, DIFF_FROM_CONTENTS);
+
if (DIFF_OPT_TST(options, FIND_COPIES_HARDER))
options->detect_rename = DIFF_DETECT_COPY;
@@ -2611,7 +2625,7 @@ int diff_setup_done(struct diff_options *options)
* to have found. It does not make sense not to return with
* exit code in such a case either.
*/
- if (DIFF_OPT_TST(options, QUIET)) {
+ if (DIFF_OPT_TST(options, QUICK)) {
options->output_format = DIFF_FORMAT_NO_OUTPUT;
DIFF_OPT_SET(options, EXIT_WITH_STATUS);
}
@@ -2802,7 +2816,7 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
else if (!strcmp(arg, "--exit-code"))
DIFF_OPT_SET(options, EXIT_WITH_STATUS);
else if (!strcmp(arg, "--quiet"))
- DIFF_OPT_SET(options, QUIET);
+ DIFF_OPT_SET(options, QUICK);
else if (!strcmp(arg, "--ext-diff"))
DIFF_OPT_SET(options, ALLOW_EXTERNAL);
else if (!strcmp(arg, "--no-ext-diff"))
@@ -3509,6 +3523,18 @@ free_queue:
q->nr = q->alloc = 0;
if (options->close_file)
fclose(options->file);
+
+ /*
+ * Report the content-level differences with HAS_CHANGES;
+ * diff_addremove/diff_change does not set the bit when
+ * DIFF_FROM_CONTENTS is in effect (e.g. with -w).
+ */
+ if (DIFF_OPT_TST(options, DIFF_FROM_CONTENTS)) {
+ if (options->found_changes)
+ DIFF_OPT_SET(options, HAS_CHANGES);
+ else
+ DIFF_OPT_CLR(options, HAS_CHANGES);
+ }
}
static void diffcore_apply_filter(const char *filter)
@@ -3645,7 +3671,7 @@ void diffcore_std(struct diff_options *options)
diff_resolve_rename_copy();
diffcore_apply_filter(options->filter);
- if (diff_queued_diff.nr)
+ if (diff_queued_diff.nr && !DIFF_OPT_TST(options, DIFF_FROM_CONTENTS))
DIFF_OPT_SET(options, HAS_CHANGES);
else
DIFF_OPT_CLR(options, HAS_CHANGES);
@@ -3705,7 +3731,8 @@ void diff_addremove(struct diff_options *options,
fill_filespec(two, sha1, mode);
diff_queue(&diff_queued_diff, one, two);
- DIFF_OPT_SET(options, HAS_CHANGES);
+ if (!DIFF_OPT_TST(options, DIFF_FROM_CONTENTS))
+ DIFF_OPT_SET(options, HAS_CHANGES);
}
void diff_change(struct diff_options *options,
@@ -3737,7 +3764,8 @@ void diff_change(struct diff_options *options,
fill_filespec(two, new_sha1, new_mode);
diff_queue(&diff_queued_diff, one, two);
- DIFF_OPT_SET(options, HAS_CHANGES);
+ if (!DIFF_OPT_TST(options, DIFF_FROM_CONTENTS))
+ DIFF_OPT_SET(options, HAS_CHANGES);
}
void diff_unmerge(struct diff_options *options,