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-rw-r--r--Documentation/git-tag.txt6
-rw-r--r--Makefile1
-rw-r--r--builtin/tag.c71
-rw-r--r--cache.h2
-rwxr-xr-xt/t7004-tag.sh43
-rw-r--r--versioncmp.c93
6 files changed, 211 insertions, 5 deletions
diff --git a/Documentation/git-tag.txt b/Documentation/git-tag.txt
index 404257d..b424a1b 100644
--- a/Documentation/git-tag.txt
+++ b/Documentation/git-tag.txt
@@ -95,6 +95,12 @@ OPTIONS
using fnmatch(3)). Multiple patterns may be given; if any of
them matches, the tag is shown.
+--sort=<type>::
+ Sort in a specific order. Supported type is "refname"
+ (lexicographic order), "version:refname" or "v:refname" (tag
+ names are treated as versions). Prepend "-" to reverse sort
+ order.
+
--column[=<options>]::
--no-column::
Display tag listing in columns. See configuration variable
diff --git a/Makefile b/Makefile
index f818eec..3646391 100644
--- a/Makefile
+++ b/Makefile
@@ -892,6 +892,7 @@ LIB_OBJS += userdiff.o
LIB_OBJS += utf8.o
LIB_OBJS += varint.o
LIB_OBJS += version.o
+LIB_OBJS += versioncmp.o
LIB_OBJS += walker.o
LIB_OBJS += wildmatch.o
LIB_OBJS += wrapper.o
diff --git a/builtin/tag.c b/builtin/tag.c
index b7d9632..40356e3 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -27,9 +27,16 @@ static const char * const git_tag_usage[] = {
NULL
};
+#define STRCMP_SORT 0 /* must be zero */
+#define VERCMP_SORT 1
+#define SORT_MASK 0x7fff
+#define REVERSE_SORT 0x8000
+
struct tag_filter {
const char **patterns;
int lines;
+ int sort;
+ struct string_list tags;
struct commit_list *with_commit;
};
@@ -166,7 +173,10 @@ static int show_reference(const char *refname, const unsigned char *sha1,
return 0;
if (!filter->lines) {
- printf("%s\n", refname);
+ if (filter->sort)
+ string_list_append(&filter->tags, refname);
+ else
+ printf("%s\n", refname);
return 0;
}
printf("%-15s ", refname);
@@ -177,17 +187,39 @@ static int show_reference(const char *refname, const unsigned char *sha1,
return 0;
}
+static int sort_by_version(const void *a_, const void *b_)
+{
+ const struct string_list_item *a = a_;
+ const struct string_list_item *b = b_;
+ return versioncmp(a->string, b->string);
+}
+
static int list_tags(const char **patterns, int lines,
- struct commit_list *with_commit)
+ struct commit_list *with_commit, int sort)
{
struct tag_filter filter;
filter.patterns = patterns;
filter.lines = lines;
+ filter.sort = sort;
filter.with_commit = with_commit;
+ memset(&filter.tags, 0, sizeof(filter.tags));
+ filter.tags.strdup_strings = 1;
for_each_tag_ref(show_reference, (void *) &filter);
-
+ if (sort) {
+ int i;
+ if ((sort & SORT_MASK) == VERCMP_SORT)
+ qsort(filter.tags.items, filter.tags.nr,
+ sizeof(struct string_list_item), sort_by_version);
+ if (sort & REVERSE_SORT)
+ for (i = filter.tags.nr - 1; i >= 0; i--)
+ printf("%s\n", filter.tags.items[i].string);
+ else
+ for (i = 0; i < filter.tags.nr; i++)
+ printf("%s\n", filter.tags.items[i].string);
+ string_list_clear(&filter.tags, 0);
+ }
return 0;
}
@@ -427,6 +459,29 @@ static int parse_opt_points_at(const struct option *opt __attribute__((unused)),
return 0;
}
+static int parse_opt_sort(const struct option *opt, const char *arg, int unset)
+{
+ int *sort = opt->value;
+ int flags = 0;
+
+ if (*arg == '-') {
+ flags |= REVERSE_SORT;
+ arg++;
+ }
+ if (starts_with(arg, "version:")) {
+ *sort = VERCMP_SORT;
+ arg += 8;
+ } else if (starts_with(arg, "v:")) {
+ *sort = VERCMP_SORT;
+ arg += 2;
+ } else
+ *sort = STRCMP_SORT;
+ if (strcmp(arg, "refname"))
+ die(_("unsupported sort specification %s"), arg);
+ *sort |= flags;
+ return 0;
+}
+
int cmd_tag(int argc, const char **argv, const char *prefix)
{
struct strbuf buf = STRBUF_INIT;
@@ -437,7 +492,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
struct create_tag_options opt;
char *cleanup_arg = NULL;
int annotate = 0, force = 0, lines = -1;
- int cmdmode = 0;
+ int cmdmode = 0, sort = 0;
const char *msgfile = NULL, *keyid = NULL;
struct msg_arg msg = { 0, STRBUF_INIT };
struct commit_list *with_commit = NULL;
@@ -462,6 +517,10 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
N_("use another key to sign the tag")),
OPT__FORCE(&force, N_("replace the tag if exists")),
OPT_COLUMN(0, "column", &colopts, N_("show tag list in columns")),
+ {
+ OPTION_CALLBACK, 0, "sort", &sort, N_("type"), N_("sort tags"),
+ PARSE_OPT_NONEG, parse_opt_sort
+ },
OPT_GROUP(N_("Tag listing options")),
{
@@ -515,7 +574,9 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
copts.padding = 2;
run_column_filter(colopts, &copts);
}
- ret = list_tags(argv, lines == -1 ? 0 : lines, with_commit);
+ if (lines != -1 && sort)
+ die(_("--sort and -n are incompatible"));
+ ret = list_tags(argv, lines == -1 ? 0 : lines, with_commit, sort);
if (column_active(colopts))
stop_column_filter();
return ret;
diff --git a/cache.h b/cache.h
index b66cb49..107ac61 100644
--- a/cache.h
+++ b/cache.h
@@ -1458,4 +1458,6 @@ int stat_validity_check(struct stat_validity *sv, const char *path);
*/
void stat_validity_update(struct stat_validity *sv, int fd);
+int versioncmp(const char *s1, const char *s2);
+
#endif /* CACHE_H */
diff --git a/t/t7004-tag.sh b/t/t7004-tag.sh
index c8d6e9f..143a8ea 100755
--- a/t/t7004-tag.sh
+++ b/t/t7004-tag.sh
@@ -1380,4 +1380,47 @@ test_expect_success 'multiple --points-at are OR-ed together' '
test_cmp expect actual
'
+test_expect_success 'lexical sort' '
+ git tag foo1.3 &&
+ git tag foo1.6 &&
+ git tag foo1.10 &&
+ git tag -l --sort=refname "foo*" >actual &&
+ cat >expect <<EOF &&
+foo1.10
+foo1.3
+foo1.6
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'version sort' '
+ git tag -l --sort=version:refname "foo*" >actual &&
+ cat >expect <<EOF &&
+foo1.3
+foo1.6
+foo1.10
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'reverse version sort' '
+ git tag -l --sort=-version:refname "foo*" >actual &&
+ cat >expect <<EOF &&
+foo1.10
+foo1.6
+foo1.3
+EOF
+ test_cmp expect actual
+'
+
+test_expect_success 'reverse lexical sort' '
+ git tag -l --sort=-refname "foo*" >actual &&
+ cat >expect <<EOF &&
+foo1.6
+foo1.3
+foo1.10
+EOF
+ test_cmp expect actual
+'
+
test_done
diff --git a/versioncmp.c b/versioncmp.c
new file mode 100644
index 0000000..7511e08
--- /dev/null
+++ b/versioncmp.c
@@ -0,0 +1,93 @@
+#include "cache.h"
+
+/*
+ * versioncmp(): copied from string/strverscmp.c in glibc commit
+ * ee9247c38a8def24a59eb5cfb7196a98bef8cfdc, reformatted to Git coding
+ * style. The implementation is under LGPL-2.1 and Git relicenses it
+ * to GPLv2.
+ */
+
+/*
+ * states: S_N: normal, S_I: comparing integral part, S_F: comparing
+ * fractionnal parts, S_Z: idem but with leading Zeroes only
+ */
+#define S_N 0x0
+#define S_I 0x3
+#define S_F 0x6
+#define S_Z 0x9
+
+/* result_type: CMP: return diff; LEN: compare using len_diff/diff */
+#define CMP 2
+#define LEN 3
+
+
+/*
+ * Compare S1 and S2 as strings holding indices/version numbers,
+ * returning less than, equal to or greater than zero if S1 is less
+ * than, equal to or greater than S2 (for more info, see the texinfo
+ * doc).
+ */
+
+int versioncmp(const char *s1, const char *s2)
+{
+ const unsigned char *p1 = (const unsigned char *) s1;
+ const unsigned char *p2 = (const unsigned char *) s2;
+ unsigned char c1, c2;
+ int state, diff;
+
+ /*
+ * Symbol(s) 0 [1-9] others
+ * Transition (10) 0 (01) d (00) x
+ */
+ static const uint8_t next_state[] = {
+ /* state x d 0 */
+ /* S_N */ S_N, S_I, S_Z,
+ /* S_I */ S_N, S_I, S_I,
+ /* S_F */ S_N, S_F, S_F,
+ /* S_Z */ S_N, S_F, S_Z
+ };
+
+ static const int8_t result_type[] = {
+ /* state x/x x/d x/0 d/x d/d d/0 0/x 0/d 0/0 */
+
+ /* S_N */ CMP, CMP, CMP, CMP, LEN, CMP, CMP, CMP, CMP,
+ /* S_I */ CMP, -1, -1, +1, LEN, LEN, +1, LEN, LEN,
+ /* S_F */ CMP, CMP, CMP, CMP, CMP, CMP, CMP, CMP, CMP,
+ /* S_Z */ CMP, +1, +1, -1, CMP, CMP, -1, CMP, CMP
+ };
+
+ if (p1 == p2)
+ return 0;
+
+ c1 = *p1++;
+ c2 = *p2++;
+ /* Hint: '0' is a digit too. */
+ state = S_N + ((c1 == '0') + (isdigit (c1) != 0));
+
+ while ((diff = c1 - c2) == 0) {
+ if (c1 == '\0')
+ return diff;
+
+ state = next_state[state];
+ c1 = *p1++;
+ c2 = *p2++;
+ state += (c1 == '0') + (isdigit (c1) != 0);
+ }
+
+ state = result_type[state * 3 + (((c2 == '0') + (isdigit (c2) != 0)))];
+
+ switch (state) {
+ case CMP:
+ return diff;
+
+ case LEN:
+ while (isdigit (*p1++))
+ if (!isdigit (*p2++))
+ return 1;
+
+ return isdigit (*p2) ? -1 : diff;
+
+ default:
+ return state;
+ }
+}