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authorJunio C Hamano <gitster@pobox.com>2010-06-18 18:16:57 (GMT)
committerJunio C Hamano <gitster@pobox.com>2010-06-18 18:16:57 (GMT)
commit5977744d045cacb809a3e3630dbbd28fe83976ae (patch)
tree276ab50231e80bf913148e421247a5a4ecf78653 /diff.c
parent98ad90fbab90a423ca835956d3121c60db2eb218 (diff)
parent296c6bb21a6980f6e5b42f0790d6365c1e3f696f (diff)
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Merge branch 'cc/maint-diff-CC-binary'
* cc/maint-diff-CC-binary: diff: fix "git show -C -C" output when renaming a binary file Conflicts: diff.c
Diffstat (limited to 'diff.c')
-rw-r--r--diff.c21
1 files changed, 16 insertions, 5 deletions
diff --git a/diff.c b/diff.c
index c6b5fb3..2327cea 100644
--- a/diff.c
+++ b/diff.c
@@ -1837,6 +1837,7 @@ static void builtin_diff(const char *name_a,
struct diff_filespec *one,
struct diff_filespec *two,
const char *xfrm_msg,
+ int must_show_header,
struct diff_options *o,
int complete_rewrite)
{
@@ -1896,16 +1897,19 @@ static void builtin_diff(const char *name_a,
strbuf_addf(&header, "%s%snew file mode %06o%s\n", line_prefix, set, two->mode, reset);
if (xfrm_msg)
strbuf_addstr(&header, xfrm_msg);
+ must_show_header = 1;
}
else if (lbl[1][0] == '/') {
strbuf_addf(&header, "%s%sdeleted file mode %06o%s\n", line_prefix, set, one->mode, reset);
if (xfrm_msg)
strbuf_addstr(&header, xfrm_msg);
+ must_show_header = 1;
}
else {
if (one->mode != two->mode) {
strbuf_addf(&header, "%s%sold mode %06o%s\n", line_prefix, set, one->mode, reset);
strbuf_addf(&header, "%s%snew mode %06o%s\n", line_prefix, set, two->mode, reset);
+ must_show_header = 1;
}
if (xfrm_msg)
strbuf_addstr(&header, xfrm_msg);
@@ -1935,8 +1939,11 @@ static void builtin_diff(const char *name_a,
die("unable to read files to diff");
/* Quite common confusing case */
if (mf1.size == mf2.size &&
- !memcmp(mf1.ptr, mf2.ptr, mf1.size))
+ !memcmp(mf1.ptr, mf2.ptr, mf1.size)) {
+ if (must_show_header)
+ fprintf(o->file, "%s", header.buf);
goto free_ab_and_return;
+ }
fprintf(o->file, "%s", header.buf);
strbuf_reset(&header);
if (DIFF_OPT_TST(o, BINARY))
@@ -1954,7 +1961,7 @@ static void builtin_diff(const char *name_a,
struct emit_callback ecbdata;
const struct userdiff_funcname *pe;
- if (!DIFF_XDL_TST(o, WHITESPACE_FLAGS)) {
+ if (!DIFF_XDL_TST(o, WHITESPACE_FLAGS) || must_show_header) {
fprintf(o->file, "%s", header.buf);
strbuf_reset(&header);
}
@@ -2568,6 +2575,7 @@ static void fill_metainfo(struct strbuf *msg,
struct diff_filespec *two,
struct diff_options *o,
struct diff_filepair *p,
+ int *must_show_header,
int use_color)
{
const char *set = diff_get_color(use_color, DIFF_METAINFO);
@@ -2575,11 +2583,11 @@ static void fill_metainfo(struct strbuf *msg,
struct strbuf *msgbuf;
char *line_prefix = "";
+ *must_show_header = 1;
if (o->output_prefix) {
msgbuf = o->output_prefix(o, o->output_prefix_data);
line_prefix = msgbuf->buf;
}
-
strbuf_init(msg, PATH_MAX * 2 + 300);
switch (p->status) {
case DIFF_STATUS_COPIED:
@@ -2613,7 +2621,7 @@ static void fill_metainfo(struct strbuf *msg,
/* fallthru */
default:
/* nothing */
- ;
+ *must_show_header = 0;
}
if (one && two && hashcmp(one->sha1, two->sha1)) {
int abbrev = DIFF_OPT_TST(o, FULL_INDEX) ? 40 : DEFAULT_ABBREV;
@@ -2646,6 +2654,7 @@ static void run_diff_cmd(const char *pgm,
{
const char *xfrm_msg = NULL;
int complete_rewrite = (p->status == DIFF_STATUS_MODIFIED) && p->score;
+ int must_show_header = 0;
if (!DIFF_OPT_TST(o, ALLOW_EXTERNAL))
pgm = NULL;
@@ -2661,6 +2670,7 @@ static void run_diff_cmd(const char *pgm,
* external diff driver
*/
fill_metainfo(msg, name, other, one, two, o, p,
+ &must_show_header,
DIFF_OPT_TST(o, COLOR_DIFF) && !pgm);
xfrm_msg = msg->len ? msg->buf : NULL;
}
@@ -2672,7 +2682,8 @@ static void run_diff_cmd(const char *pgm,
}
if (one && two)
builtin_diff(name, other ? other : name,
- one, two, xfrm_msg, o, complete_rewrite);
+ one, two, xfrm_msg, must_show_header,
+ o, complete_rewrite);
else
fprintf(o->file, "* Unmerged path %s\n", name);
}