Subject: [PATCH v9 9/9] tag: add --column

From: Nguyễn Thái Ngọc Duy <[email-masked]>
Date: Fri, 13 Apr 2012 17:54:41 +0700

Signed-off-by: Nguyễn Thái Ngọc Duy <[email-masked]>
Signed-off-by: Junio C Hamano <[email-masked]>
---
 Documentation/config.txt  |    4 ++++
 Documentation/git-tag.txt |    9 +++++++++
 Makefile                  |    2 +-
 builtin/tag.c             |   27 ++++++++++++++++++++++++---
 t/t7004-tag.sh            |   44 ++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 82 insertions(+), 4 deletions(-)

diff --git a/Documentation/config.txt b/Documentation/config.txt
index 2158f0c..75ecf36 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -870,6 +870,10 @@ column.status::
 	Specify whether to output untracked files in `git status` in columns.
 	See `column.ui` for details.
 
+column.tag::
+	Specify whether to output tag listing in `git tag` in columns.
+	See `column.ui` for details.
+
 commit.status::
 	A boolean to enable/disable inclusion of status information in the
 	commit message template when using an editor to prepare the commit
diff --git a/Documentation/git-tag.txt b/Documentation/git-tag.txt
index 8d32b9a..e36a7c3 100644
--- a/Documentation/git-tag.txt
+++ b/Documentation/git-tag.txt
@@ -13,6 +13,7 @@ SYNOPSIS
 	<tagname> [<commit> | <object>]
 'git tag' -d <tagname>...
 'git tag' [-n[<num>]] -l [--contains <commit>] [--points-at <object>]
+	[--column[=<options>] | --no-column] [<pattern>...]
 	[<pattern>...]
 'git tag' -v <tagname>...
 
@@ -84,6 +85,14 @@ OPTIONS
 	using fnmatch(3)).  Multiple patterns may be given; if any of
 	them matches, the tag is shown.
 
+--column[=<options>]::
+--no-column::
+	Display tag listing in columns. See configuration variable
+	column.tag for option syntax.`--column` and `--no-column`
+	without options are equivalent to 'always' and 'never' respectively.
++
+This option is only applicable when listing tags without annotation lines.
+
 --contains <commit>::
 	Only list tags which contain the specified commit.
 
diff --git a/Makefile b/Makefile
index 297e830..53e27cc 100644
--- a/Makefile
+++ b/Makefile
@@ -2168,7 +2168,7 @@ builtin/prune.o builtin/reflog.o reachable.o: reachable.h
 builtin/commit.o builtin/revert.o wt-status.o: wt-status.h
 builtin/tar-tree.o archive-tar.o: tar.h
 connect.o transport.o url.o http-backend.o: url.h
-builtin/branch.o builtin/commit.o column.o help.o pager.o: column.h
+builtin/branch.o builtin/commit.o builtin/tag.o column.o help.o pager.o: column.h
 http-fetch.o http-walker.o remote-curl.o transport.o walker.o: walker.h
 http.o http-walker.o http-push.o http-fetch.o remote-curl.o: http.h url.h
 
diff --git a/builtin/tag.c b/builtin/tag.c
index fe7e5e5..4fb6bd7 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -16,6 +16,7 @@
 #include "revision.h"
 #include "gpg-interface.h"
 #include "sha1-array.h"
+#include "column.h"
 
 static const char * const git_tag_usage[] = {
 	"git tag [-a|-s|-u <key-id>] [-f] [-m <msg>|-F <file>] <tagname> [<head>]",
@@ -33,6 +34,7 @@ struct tag_filter {
 };
 
 static struct sha1_array points_at;
+static unsigned int colopts;
 
 static int match_pattern(const char **patterns, const char *ref)
 {
@@ -263,6 +265,8 @@ static int git_tag_config(const char *var, const char *value, void *cb)
 	int status = git_gpg_config(var, value, cb);
 	if (status)
 		return status;
+	if (!prefixcmp(var, "column."))
+		return git_column_config(var, value, "tag", &colopts);
 	return git_default_config(var, value, cb);
 }
 
@@ -459,6 +463,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 		OPT_STRING('u', "local-user", &keyid, "key-id",
 					"use another key to sign the tag"),
 		OPT__FORCE(&force, "replace the tag if exists"),
+		OPT_COLUMN(0, "column", &colopts, "show tag list in columns"),
 
 		OPT_GROUP("Tag listing options"),
 		{
@@ -495,9 +500,25 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 
 	if (list + delete + verify > 1)
 		usage_with_options(git_tag_usage, options);
-	if (list)
-		return list_tags(argv, lines == -1 ? 0 : lines,
-				 with_commit);
+	finalize_colopts(&colopts, -1);
+	if (list && lines != -1) {
+		if (explicitly_enable_column(colopts))
+			die(_("--column and -n are incompatible"));
+		colopts = 0;
+	}
+	if (list) {
+		int ret;
+		if (column_active(colopts)) {
+			struct column_options copts;
+			memset(&copts, 0, sizeof(copts));
+			copts.padding = 2;
+			run_column_filter(colopts, &copts);
+		}
+		ret = list_tags(argv, lines == -1 ? 0 : lines, with_commit);
+		if (column_active(colopts))
+			stop_column_filter();
+		return ret;
+	}
 	if (lines != -1)
 		die(_("-n option is only allowed with -l."));
 	if (with_commit)
diff --git a/t/t7004-tag.sh b/t/t7004-tag.sh
index f8c247a..5189446 100755
--- a/t/t7004-tag.sh
+++ b/t/t7004-tag.sh
@@ -263,6 +263,50 @@ test_expect_success 'tag -l can accept multiple patterns' '
 	test_cmp expect actual
 '
 
+test_expect_success 'listing tags in column' '
+	COLUMNS=40 git tag -l --column=row >actual &&
+	cat >expected <<\EOF &&
+a1      aa1     cba     t210    t211
+v0.2.1  v1.0    v1.0.1  v1.1.3
+EOF
+	test_cmp expected actual
+'
+
+test_expect_success 'listing tags in column with column.*' '
+	git config column.tag row &&
+	git config column.ui dense &&
+	COLUMNS=40 git tag -l >actual &&
+	git config --unset column.ui &&
+	git config --unset column.tag &&
+	cat >expected <<\EOF &&
+a1      aa1   cba     t210    t211
+v0.2.1  v1.0  v1.0.1  v1.1.3
+EOF
+	test_cmp expected actual
+'
+
+test_expect_success 'listing tag with -n --column should fail' '
+	test_must_fail git tag --column -n
+'
+
+test_expect_success 'listing tags -n in column with column.ui ignored' '
+	git config column.ui "row dense" &&
+	COLUMNS=40 git tag -l -n >actual &&
+	git config --unset column.ui &&
+	cat >expected <<\EOF &&
+a1              Foo
+aa1             Foo
+cba             Foo
+t210            Foo
+t211            Foo
+v0.2.1          Foo
+v1.0            Foo
+v1.0.1          Foo
+v1.1.3          Foo
+EOF
+	test_cmp expected actual
+'
+
 # creating and verifying lightweight tags:
 
 test_expect_success \
-- 
1.7.3.1.256.g2539c.dirty