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pretty: add %C(auto) for auto-coloring

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This is not simply convenient over %C(auto,xxx). Some placeholders
(actually only one, %d) do multi coloring and we can't emit a multiple
colors with %C(auto,xxx).

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2013-04-19 09:08:49 +10:00 committed by Junio C Hamano
parent fcabc2d91c
commit a95f067e3f
2 changed files with 25 additions and 4 deletions
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3
Documentation/pretty-formats.txt
View File

@ -156,7 +156,8 @@ The placeholders are:
adding `auto,` at the beginning will emit color only when colors are
enabled for log output (by `color.diff`, `color.ui`, or `--color`, and
respecting the `auto` settings of the former if we are going to a
terminal)
terminal). `auto` alone (i.e. `%C(auto)`) will turn on auto coloring
on the next placeholders until the color is switched again.
- '%m': left, right or boundary mark
- '%n': newline
- '%%': a raw '%'

26
pretty.c
View File

@ -778,6 +778,7 @@ struct format_commit_context {
char *message;
char *commit_encoding;
size_t width, indent1, indent2;
int auto_color;
/* These offsets are relative to the start of the commit message. */
struct chunk author;
@ -1005,7 +1006,20 @@ static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */
/* these are independent of the commit */
switch (placeholder[0]) {
case 'C':
return parse_color(sb, placeholder, c);
if (!prefixcmp(placeholder + 1, "(auto)")) {
c->auto_color = 1;
return 7; /* consumed 7 bytes, "C(auto)" */
} else {
int ret = parse_color(sb, placeholder, c);
if (ret)
c->auto_color = 0;
/*
* Otherwise, we decided to treat %C<unknown>
* as a literal string, and the previous
* %C(auto) is still valid.
*/
return ret;
}
case 'n': /* newline */
strbuf_addch(sb, '\n');
return 1;
@ -1051,13 +1065,19 @@ static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */
switch (placeholder[0]) {
case 'H': /* commit hash */
strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_COMMIT));
strbuf_addstr(sb, sha1_to_hex(commit->object.sha1));
strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_RESET));
return 1;
case 'h': /* abbreviated commit hash */
if (add_again(sb, &c->abbrev_commit_hash))
strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_COMMIT));
if (add_again(sb, &c->abbrev_commit_hash)) {
strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_RESET));
return 1;
}
strbuf_addstr(sb, find_unique_abbrev(commit->object.sha1,
c->pretty_ctx->abbrev));
strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_RESET));
c->abbrev_commit_hash.len = sb->len - c->abbrev_commit_hash.off;
return 1;
case 'T': /* tree hash */
@ -1095,7 +1115,7 @@ static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */
return 1;
case 'd':
load_ref_decorations(DECORATE_SHORT_REFS);
format_decorations(sb, commit, 0);
format_decorations(sb, commit, c->auto_color);
return 1;
case 'g': /* reflog info */
switch(placeholder[1]) {