From 9ef176b55c373ba087b2d84e77b5713578891927 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= Date: Thu, 27 Feb 2014 19:56:52 +0700 Subject: tag: support --sort= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --sort=version:refname (or --sort=v:refname for short) sorts tags as if they are versions. --sort=-refname reverses the order (with or without ":version"). versioncmp() is copied from string/strverscmp.c in glibc commit ee9247c38a8def24a59eb5cfb7196a98bef8cfdc, reformatted to Git coding style. The implementation is under LGPL-2.1 and according to [1] I can relicense it to GPLv2. [1] http://www.gnu.org/licenses/gpl-faq.html#AllCompatibility Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano 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=:: + 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[=]:: --no-column:: Display tag listing in columns. See configuration variable diff --git a/Makefile b/Makefile index dddaf4f..16b00a5 100644 --- a/Makefile +++ b/Makefile @@ -884,6 +884,7 @@ 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 74d3780..0439c48 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")), { @@ -509,7 +568,9 @@ 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 dc040fb..082a783 100644 --- a/cache.h +++ b/cache.h @@ -1367,4 +1367,6 @@ 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 <actual && + cat >expect <actual && + cat >expect <actual && + cat >expect <