tag, branch, for-each-ref: add --ignore-case for sorting and filtering

This options makes sorting ignore case, which is great when you have
branches named bug-12-do-something, Bug-12-do-some-more and
BUG-12-do-what and want to group them together. Sorting externally may
not be an option because we lose coloring and column layout from
git-branch and git-tag.

The same could be said for filtering, but it's probably less important
because you can always go with the ugly pattern [bB][uU][gG]-* if you're
desperate.

You can't have case-sensitive filtering and case-insensitive sorting (or
the other way around) with this though. For branch and tag, that should
be no problem. for-each-ref, as a plumbing, might want finer control.
But we can always add --{filter,sort}-ignore-case when there is a need
for it.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt
index 1fe7344..5516a47 100644 (file)
--- a/Documentation/git-branch.txt
+++ b/Documentation/git-branch.txt
@@ -118,6 +118,10 @@ OPTIONS
        default to color output.
        Same as `--color=never`.
 
+-i::
+--ignore-case::
+       Sorting and filtering branches are case insensitive.
+
 --column[=<options>]::
 --no-column::
        Display branch listing in columns. See configuration variable

diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt
index f57e69b..6d22974 100644 (file)
--- a/Documentation/git-for-each-ref.txt
+++ b/Documentation/git-for-each-ref.txt
@@ -79,6 +79,9 @@ OPTIONS
        Only list refs which contain the specified commit (HEAD if not
        specified).
 
+--ignore-case::
+       Sorting and filtering refs are case insensitive.
+
 FIELD NAMES
 -----------
 

diff --git a/Documentation/git-tag.txt b/Documentation/git-tag.txt
index 80019c5..76cfe40 100644 (file)
--- a/Documentation/git-tag.txt
+++ b/Documentation/git-tag.txt
@@ -108,6 +108,10 @@ OPTIONS
        variable if it exists, or lexicographic order otherwise. See
        linkgit:git-config[1].
 
+-i::
+--ignore-case::
+       Sorting and filtering tags are case insensitive.
+
 --column[=<options>]::
 --no-column::
        Display tag listing in columns. See configuration variable

diff --git a/builtin/branch.c b/builtin/branch.c
index 60cc5c8..36e0a21 100644 (file)
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -512,15 +512,6 @@ static void print_ref_list(struct ref_filter *filter, struct ref_sorting *sortin
        if (filter->verbose)
                maxwidth = calc_maxwidth(&array, strlen(remote_prefix));
 
-       /*
-        * If no sorting parameter is given then we default to sorting
-        * by 'refname'. This would give us an alphabetically sorted
-        * array with the 'HEAD' ref at the beginning followed by
-        * local branches 'refs/heads/...' and finally remote-tacking
-        * branches 'refs/remotes/...'.
-        */
-       if (!sorting)
-               sorting = ref_default_sorting();
        ref_array_sort(sorting, &array);
 
        for (i = 0; i < array.nr; i++)
@@ -645,6 +636,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
        const char *new_upstream = NULL;
        enum branch_track track;
        struct ref_filter filter;
+       int icase = 0;
        static struct ref_sorting *sorting = NULL, **sorting_tail = &sorting;
 
        struct option options[] = {
@@ -686,6 +678,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
                        OPTION_CALLBACK, 0, "points-at", &filter.points_at, N_("object"),
                        N_("print only branches of the object"), 0, parse_opt_object_name
                },
+               OPT_BOOL('i', "ignore-case", &icase, N_("sorting and filtering are case insensitive")),
                OPT_END(),
        };
 
@@ -723,6 +716,8 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
 
        if (filter.abbrev == -1)
                filter.abbrev = DEFAULT_ABBREV;
+       filter.ignore_case = icase;
+
        finalize_colopts(&colopts, -1);
        if (filter.verbose) {
                if (explicitly_enable_column(colopts))
@@ -744,6 +739,16 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
                if ((filter.kind & FILTER_REFS_BRANCHES) && filter.detached)
                        filter.kind |= FILTER_REFS_DETACHED_HEAD;
                filter.name_patterns = argv;
+               /*
+                * If no sorting parameter is given then we default to sorting
+                * by 'refname'. This would give us an alphabetically sorted
+                * array with the 'HEAD' ref at the beginning followed by
+                * local branches 'refs/heads/...' and finally remote-tacking
+                * branches 'refs/remotes/...'.
+                */
+               if (!sorting)
+                       sorting = ref_default_sorting();
+               sorting->ignore_case = icase;
                print_ref_list(&filter, sorting);
                print_columns(&output, colopts, NULL);
                string_list_clear(&output, 0);

diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
index 4e9f6c2..df41fa0 100644 (file)
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -18,7 +18,7 @@ int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
        int i;
        const char *format = "%(objectname) %(objecttype)\t%(refname)";
        struct ref_sorting *sorting = NULL, **sorting_tail = &sorting;
-       int maxcount = 0, quote_style = 0;
+       int maxcount = 0, quote_style = 0, icase = 0;
        struct ref_array array;
        struct ref_filter filter;
 
@@ -43,6 +43,7 @@ int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
                OPT_MERGED(&filter, N_("print only refs that are merged")),
                OPT_NO_MERGED(&filter, N_("print only refs that are not merged")),
                OPT_CONTAINS(&filter.with_commit, N_("print only refs which contain the commit")),
+               OPT_BOOL(0, "ignore-case", &icase, N_("sorting and filtering are case insensitive")),
                OPT_END(),
        };
 
@@ -63,6 +64,8 @@ int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
 
        if (!sorting)
                sorting = ref_default_sorting();
+       sorting->ignore_case = icase;
+       filter.ignore_case = icase;
 
        /* for warn_ambiguous_refs */
        git_config(git_default_config, NULL);

diff --git a/builtin/tag.c b/builtin/tag.c
index 50e4ae5..73df728 100644 (file)
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -335,6 +335,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
        struct ref_filter filter;
        static struct ref_sorting *sorting = NULL, **sorting_tail = &sorting;
        const char *format = NULL;
+       int icase = 0;
        struct option options[] = {
                OPT_CMDMODE('l', "list", &cmdmode, N_("list tag names"), 'l'),
                { OPTION_INTEGER, 'n', NULL, &filter.lines, N_("n"),
@@ -370,6 +371,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
                        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_BOOL('i', "ignore-case", &icase, N_("sorting and filtering are case insensitive")),
                OPT_END()
        };
 
@@ -401,6 +403,8 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
        }
        if (!sorting)
                sorting = ref_default_sorting();
+       sorting->ignore_case = icase;
+       filter.ignore_case = icase;
        if (cmdmode == 'l') {
                int ret;
                if (column_active(colopts)) {

diff --git a/ref-filter.c b/ref-filter.c
index f5f7a70..bd98010 100644 (file)
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -1231,8 +1231,14 @@ static int commit_contains(struct ref_filter *filter, struct commit *commit)
  * matches a pattern "refs/heads/mas") or a wildcard (e.g. the same ref
  * matches "refs/heads/mas*", too).
  */
-static int match_pattern(const char **patterns, const char *refname)
+static int match_pattern(const struct ref_filter *filter, const char *refname)
 {
+       const char **patterns = filter->name_patterns;
+       unsigned flags = 0;
+
+       if (filter->ignore_case)
+               flags |= WM_CASEFOLD;
+
        /*
         * When no '--format' option is given we need to skip the prefix
         * for matching refs of tags and branches.
@@ -1243,7 +1249,7 @@ static int match_pattern(const char **patterns, const char *refname)
               skip_prefix(refname, "refs/", &refname));
 
        for (; *patterns; patterns++) {
-               if (!wildmatch(*patterns, refname, 0, NULL))
+               if (!wildmatch(*patterns, refname, flags, NULL))
                        return 1;
        }
        return 0;
@@ -1255,9 +1261,15 @@ static int match_pattern(const char **patterns, const char *refname)
  * matches a pattern "refs/heads/" but not "refs/heads/m") or a
  * wildcard (e.g. the same ref matches "refs/heads/m*", too).
  */
-static int match_name_as_path(const char **pattern, const char *refname)
+static int match_name_as_path(const struct ref_filter *filter, const char *refname)
 {
+       const char **pattern = filter->name_patterns;
        int namelen = strlen(refname);
+       unsigned flags = WM_PATHNAME;
+
+       if (filter->ignore_case)
+               flags |= WM_CASEFOLD;
+
        for (; *pattern; pattern++) {
                const char *p = *pattern;
                int plen = strlen(p);
@@ -1280,8 +1292,8 @@ static int filter_pattern_match(struct ref_filter *filter, const char *refname)
        if (!*filter->name_patterns)
                return 1; /* No pattern always matches */
        if (filter->match_as_path)
-               return match_name_as_path(filter->name_patterns, refname);
-       return match_pattern(filter->name_patterns, refname);
+               return match_name_as_path(filter, refname);
+       return match_pattern(filter, refname);
 }
 
 /*
@@ -1536,18 +1548,20 @@ static int cmp_ref_sorting(struct ref_sorting *s, struct ref_array_item *a, stru
        struct atom_value *va, *vb;
        int cmp;
        cmp_type cmp_type = used_atom[s->atom].type;
+       int (*cmp_fn)(const char *, const char *);
 
        get_ref_atom_value(a, s->atom, &va);
        get_ref_atom_value(b, s->atom, &vb);
+       cmp_fn = s->ignore_case ? strcasecmp : strcmp;
        if (s->version)
                cmp = versioncmp(va->s, vb->s);
        else if (cmp_type == FIELD_STR)
-               cmp = strcmp(va->s, vb->s);
+               cmp = cmp_fn(va->s, vb->s);
        else {
                if (va->ul < vb->ul)
                        cmp = -1;
                else if (va->ul == vb->ul)
-                       cmp = strcmp(a->refname, b->refname);
+                       cmp = cmp_fn(a->refname, b->refname);
                else
                        cmp = 1;
        }

diff --git a/ref-filter.h b/ref-filter.h
index 14d435e..fc55fa3 100644 (file)
--- a/ref-filter.h
+++ b/ref-filter.h
@@ -29,6 +29,7 @@ struct ref_sorting {
        struct ref_sorting *next;
        int atom; /* index into used_atom array (internal) */
        unsigned reverse : 1,
+               ignore_case : 1,
                version : 1;
 };
 
@@ -62,6 +63,7 @@ struct ref_filter {
 
        unsigned int with_commit_tag_algo : 1,
                match_as_path : 1,
+               ignore_case : 1,
                detached : 1;
        unsigned int kind,
                lines;

diff --git a/t/t3203-branch-output.sh b/t/t3203-branch-output.sh
index c6a3ccb..52283df 100755 (executable)
--- a/t/t3203-branch-output.sh
+++ b/t/t3203-branch-output.sh
@@ -89,6 +89,11 @@ test_expect_success 'git branch --list -v pattern shows branch summaries' '
        awk "{print \$NF}" <tmp >actual &&
        test_cmp expect actual
 '
+test_expect_success 'git branch --ignore-case --list -v pattern shows branch summaries' '
+       git branch --list --ignore-case -v BRANCH* >tmp &&
+       awk "{print \$NF}" <tmp >actual &&
+       test_cmp expect actual
+'
 
 test_expect_success 'git branch -v pattern does not show branch summaries' '
        test_must_fail git branch -v branch*
@@ -196,4 +201,28 @@ test_expect_success 'local-branch symrefs shortened properly' '
        test_cmp expect actual
 '
 
+test_expect_success 'sort branches, ignore case' '
+       (
+               git init sort-icase &&
+               cd sort-icase &&
+               test_commit initial &&
+               git branch branch-one &&
+               git branch BRANCH-two &&
+               git branch --list | awk "{print \$NF}" >actual &&
+               cat >expected <<-\EOF &&
+               BRANCH-two
+               branch-one
+               master
+               EOF
+               test_cmp expected actual &&
+               git branch --list -i | awk "{print \$NF}" >actual &&
+               cat >expected <<-\EOF &&
+               branch-one
+               BRANCH-two
+               master
+               EOF
+               test_cmp expected actual
+       )
+'
+
 test_done

diff --git a/t/t7004-tag.sh b/t/t7004-tag.sh
index 8b0f71a..07869b0 100755 (executable)
--- a/t/t7004-tag.sh
+++ b/t/t7004-tag.sh
@@ -27,6 +27,30 @@ test_expect_success 'listing all tags in an empty tree should output nothing' '
        test $(git tag | wc -l) -eq 0
 '
 
+test_expect_success 'sort tags, ignore case' '
+       (
+               git init sort &&
+               cd sort &&
+               test_commit initial &&
+               git tag tag-one &&
+               git tag TAG-two &&
+               git tag -l >actual &&
+               cat >expected <<-\EOF &&
+               TAG-two
+               initial
+               tag-one
+               EOF
+               test_cmp expected actual &&
+               git tag -l -i >actual &&
+               cat >expected <<-\EOF &&
+               initial
+               tag-one
+               TAG-two
+               EOF
+               test_cmp expected actual
+       )
+'
+
 test_expect_success 'looking for a tag in an empty tree should fail' \
        '! (tag_exists mytag)'
 
@@ -81,6 +105,9 @@ test_expect_success 'listing all tags if one exists should output that tag' '
 test_expect_success 'listing a tag using a matching pattern should succeed' \
        'git tag -l mytag'
 
+test_expect_success 'listing a tag with --ignore-case' \
+       'test $(git tag -l --ignore-case MYTAG) = mytag'
+
 test_expect_success \
        'listing a tag using a matching pattern should output that tag' \
        'test $(git tag -l mytag) = mytag'