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pretty: add tag option to %(describe)

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The %(describe) placeholder by default, like `git describe`, only
supports annotated tags. However, some people do use lightweight tags
for releases, and would like to describe those anyway. The command line
tool has an option to support this.

Teach the placeholder to support this as well.

Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Eli Schwartz 2021-10-31 13:15:09 -04:00 committed by Junio C Hamano
parent 3c6eb4ec50
commit 1d517ceab9
3 changed files with 27 additions and 5 deletions

12
Documentation/pretty-formats.txt
View File

@ -220,6 +220,8 @@ The placeholders are:
inconsistent when tags are added or removed at
the same time.
+
** 'tags[=<bool>]': Instead of only considering annotated tags,
consider lightweight tags as well.
** 'match=<pattern>': Only consider tags matching the given
`glob(7)` pattern, excluding the "refs/tags/" prefix.
** 'exclude=<pattern>': Do not consider tags matching the given
@ -273,11 +275,6 @@ endif::git-rev-list[]
If any option is provided multiple times the
last occurrence wins.
+
The boolean options accept an optional value `[=<BOOL>]`. The values
`true`, `false`, `on`, `off` etc. are all accepted. See the "boolean"
sub-section in "EXAMPLES" in linkgit:git-config[1]. If a boolean
option is given with no value, it's enabled.
+
** 'key=<K>': only show trailers with specified key. Matching is done
case-insensitively and trailing colon is optional. If option is
given multiple times trailer lines matching any of the keys are
@ -313,6 +310,11 @@ insert an empty string unless we are traversing reflog entries (e.g., by
decoration format if `--decorate` was not already provided on the command
line.
The boolean options accept an optional value `[=<bool>]`. The values
`true`, `false`, `on`, `off` etc. are all accepted. See the "boolean"
sub-section in "EXAMPLES" in linkgit:git-config[1]. If a boolean
option is given with no value, it's enabled.
If you add a `+` (plus sign) after '%' of a placeholder, a line-feed
is inserted immediately before the expansion if and only if the
placeholder expands to a non-empty string.

12
pretty.c
View File

@ -1219,9 +1219,11 @@ static size_t parse_describe_args(const char *start, struct strvec *args)
struct {
char *name;
enum {
DESCRIBE_ARG_BOOL,
DESCRIBE_ARG_STRING,
} type;
} option[] = {
{ "tags", DESCRIBE_ARG_BOOL},
{ "exclude", DESCRIBE_ARG_STRING },
{ "match", DESCRIBE_ARG_STRING },
};
@ -1231,10 +1233,20 @@ static size_t parse_describe_args(const char *start, struct strvec *args)
int found = 0;
const char *argval;
size_t arglen = 0;
int optval = 0;
int i;
for (i = 0; !found && i < ARRAY_SIZE(option); i++) {
switch (option[i].type) {
case DESCRIBE_ARG_BOOL:
if (match_placeholder_bool_arg(arg, option[i].name, &arg, &optval)) {
if (optval)
strvec_pushf(args, "--%s", option[i].name);
else
strvec_pushf(args, "--no-%s", option[i].name);
found = 1;
}
break;
case DESCRIBE_ARG_STRING:
if (match_placeholder_arg_value(arg, option[i].name, &arg,
&argval, &arglen)) {

8
t/t4205-log-pretty-formats.sh
View File

@ -1002,4 +1002,12 @@ test_expect_success '%(describe:exclude=...) vs git describe --exclude ...' '
test_cmp expect actual
'
test_expect_success '%(describe:tags) vs git describe --tags' '
test_when_finished "git tag -d tagname" &&
git tag tagname &&
git describe --tags >expect &&
git log -1 --format="%(describe:tags)" >actual &&
test_cmp expect actual
'
test_done