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tag.c: implement '--format' option

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Implement the '--format' option provided by 'ref-filter'.
This lets the user list tags as per desired format similar
to the implementation in 'git for-each-ref'.

Add tests and documentation for the same.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr>
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Karthik Nayak
2015-09-11 20:36:46 +05:30
committed by Junio C Hamano
parent b7cc53e92c
commit df0947417a
3 changed files with 34 additions and 11 deletions
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25
builtin/tag.c
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@ -23,17 +23,17 @@ static const char * const git_tag_usage[] = {
N_("git tag [-a | -s | -u <key-id>] [-f] [-m <msg> | -F <file>] <tagname> [<head>]"),
N_("git tag -d <tagname>..."),
N_("git tag -l [-n[<num>]] [--contains <commit>] [--points-at <object>]"
"\n\t\t[<pattern>...]"),
"\n\t\t[--format=<format>] [<pattern>...]"),
N_("git tag -v <tagname>..."),
NULL
};
static unsigned int colopts;
static int list_tags(struct ref_filter *filter, struct ref_sorting *sorting)
static int list_tags(struct ref_filter *filter, struct ref_sorting *sorting, const char *format)
{
struct ref_array array;
char *format, *to_free = NULL;
char *to_free = NULL;
int i;
memset(&array, 0, sizeof(array));
@ -41,12 +41,15 @@ static int list_tags(struct ref_filter *filter, struct ref_sorting *sorting)
if (filter->lines == -1)
filter->lines = 0;
if (filter->lines) {
to_free = xstrfmt("%s %%(contents:lines=%d)",
"%(align:15)%(refname:short)%(end)", filter->lines);
format = to_free;
} else
format = "%(refname:short)";
if (!format) {
if (filter->lines) {
to_free = xstrfmt("%s %%(contents:lines=%d)",
"%(align:15)%(refname:short)%(end)",
filter->lines);
format = to_free;
} else
format = "%(refname:short)";
}
verify_ref_format(format);
filter_refs(&array, filter, FILTER_REFS_TAGS);
@ -330,6 +333,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
struct strbuf err = STRBUF_INIT;
struct ref_filter filter;
static struct ref_sorting *sorting = NULL, **sorting_tail = &sorting;
const char *format = NULL;
struct option options[] = {
OPT_CMDMODE('l', "list", &cmdmode, N_("list tag names"), 'l'),
{ OPTION_INTEGER, 'n', NULL, &filter.lines, N_("n"),
@ -362,6 +366,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
OPTION_CALLBACK, 0, "points-at", &filter.points_at, N_("object"),
N_("print only tags of the object"), 0, parse_opt_object_name
},
OPT_STRING( 0 , "format", &format, N_("format"), N_("format to use for the output")),
OPT_END()
};
@ -402,7 +407,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
run_column_filter(colopts, &copts);
}
filter.name_patterns = argv;
ret = list_tags(&filter, sorting);
ret = list_tags(&filter, sorting, format);
if (column_active(colopts))
stop_column_filter();
return ret;