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-rw-r--r--diff.c61
1 files changed, 35 insertions, 26 deletions
diff --git a/diff.c b/diff.c
index 50cf8fb556..230c310952 100644
--- a/diff.c
+++ b/diff.c
@@ -1649,21 +1649,21 @@ static void builtin_diff(const char *name_a,
if (lbl[0][0] == '/') {
/* /dev/null */
strbuf_addf(&header, "%snew file mode %06o%s\n", set, two->mode, reset);
- if (xfrm_msg && xfrm_msg[0])
- strbuf_addf(&header, "%s%s%s\n", set, xfrm_msg, reset);
+ if (xfrm_msg)
+ strbuf_addstr(&header, xfrm_msg);
}
else if (lbl[1][0] == '/') {
strbuf_addf(&header, "%sdeleted file mode %06o%s\n", set, one->mode, reset);
- if (xfrm_msg && xfrm_msg[0])
- strbuf_addf(&header, "%s%s%s\n", set, xfrm_msg, reset);
+ if (xfrm_msg)
+ strbuf_addstr(&header, xfrm_msg);
}
else {
if (one->mode != two->mode) {
strbuf_addf(&header, "%sold mode %06o%s\n", set, one->mode, reset);
strbuf_addf(&header, "%snew mode %06o%s\n", set, two->mode, reset);
}
- if (xfrm_msg && xfrm_msg[0])
- strbuf_addf(&header, "%s%s%s\n", set, xfrm_msg, reset);
+ if (xfrm_msg)
+ strbuf_addstr(&header, xfrm_msg);
/*
* we do not run diff between different kind
@@ -2319,30 +2319,36 @@ static void fill_metainfo(struct strbuf *msg,
struct diff_filespec *one,
struct diff_filespec *two,
struct diff_options *o,
- struct diff_filepair *p)
+ struct diff_filepair *p,
+ int use_color)
{
+ const char *set = diff_get_color(use_color, DIFF_METAINFO);
+ const char *reset = diff_get_color(use_color, DIFF_RESET);
+
strbuf_init(msg, PATH_MAX * 2 + 300);
switch (p->status) {
case DIFF_STATUS_COPIED:
- strbuf_addf(msg, "similarity index %d%%", similarity_index(p));
- strbuf_addstr(msg, "\ncopy from ");
+ strbuf_addf(msg, "%ssimilarity index %d%%",
+ set, similarity_index(p));
+ strbuf_addf(msg, "%s\n%scopy from ", reset, set);
quote_c_style(name, msg, NULL, 0);
- strbuf_addstr(msg, "\ncopy to ");
+ strbuf_addf(msg, "%s\n%scopy to ", reset, set);
quote_c_style(other, msg, NULL, 0);
- strbuf_addch(msg, '\n');
+ strbuf_addf(msg, "%s\n", reset);
break;
case DIFF_STATUS_RENAMED:
- strbuf_addf(msg, "similarity index %d%%", similarity_index(p));
- strbuf_addstr(msg, "\nrename from ");
+ strbuf_addf(msg, "%ssimilarity index %d%%",
+ set, similarity_index(p));
+ strbuf_addf(msg, "%s\n%srename from ", reset, set);
quote_c_style(name, msg, NULL, 0);
- strbuf_addstr(msg, "\nrename to ");
+ strbuf_addf(msg, "%s\n%srename to ", reset, set);
quote_c_style(other, msg, NULL, 0);
- strbuf_addch(msg, '\n');
+ strbuf_addf(msg, "%s\n", reset);
break;
case DIFF_STATUS_MODIFIED:
if (p->score) {
- strbuf_addf(msg, "dissimilarity index %d%%\n",
- similarity_index(p));
+ strbuf_addf(msg, "%sdissimilarity index %d%%%s\n",
+ set, similarity_index(p), reset);
break;
}
/* fallthru */
@@ -2359,15 +2365,13 @@ static void fill_metainfo(struct strbuf *msg,
(!fill_mmfile(&mf, two) && diff_filespec_is_binary(two)))
abbrev = 40;
}
- strbuf_addf(msg, "index %.*s..%.*s",
+ strbuf_addf(msg, "%sindex %.*s..%.*s", set,
abbrev, sha1_to_hex(one->sha1),
abbrev, sha1_to_hex(two->sha1));
if (one->mode == two->mode)
strbuf_addf(msg, " %06o", one->mode);
- strbuf_addch(msg, '\n');
+ strbuf_addf(msg, "%s\n", reset);
}
- if (msg->len)
- strbuf_setlen(msg, msg->len - 1);
}
static void run_diff_cmd(const char *pgm,
@@ -2383,11 +2387,6 @@ static void run_diff_cmd(const char *pgm,
const char *xfrm_msg = NULL;
int complete_rewrite = (p->status == DIFF_STATUS_MODIFIED) && p->score;
- if (msg) {
- fill_metainfo(msg, name, other, one, two, o, p);
- xfrm_msg = msg->len ? msg->buf : NULL;
- }
-
if (!DIFF_OPT_TST(o, ALLOW_EXTERNAL))
pgm = NULL;
else {
@@ -2396,6 +2395,16 @@ static void run_diff_cmd(const char *pgm,
pgm = drv->external;
}
+ if (msg) {
+ /*
+ * don't use colors when the header is intended for an
+ * external diff driver
+ */
+ fill_metainfo(msg, name, other, one, two, o, p,
+ DIFF_OPT_TST(o, COLOR_DIFF) && !pgm);
+ xfrm_msg = msg->len ? msg->buf : NULL;
+ }
+
if (pgm) {
run_external_diff(pgm, name, other, one, two, xfrm_msg,
complete_rewrite);