[PATCH v4 13/13] tag: add --column

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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
 Documentation/config.txt  |    4 ++++
 Documentation/git-tag.txt |   11 ++++++++++-
 Makefile                  |    2 +-
 builtin/tag.c             |   25 ++++++++++++++++++++++---
 4 files changed, 37 insertions(+), 5 deletions(-)

diff --git a/Documentation/config.txt b/Documentation/config.txt
index ebb210c..145336a 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -855,6 +855,10 @@ 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 53ff5f6..5ead91e 100644
--- a/Documentation/git-tag.txt
+++ b/Documentation/git-tag.txt
@@ -12,7 +12,8 @@ SYNOPSIS
 'git tag' [-a | -s | -u <key-id>] [-f] [-m <msg> | -F <file>]
 	<tagname> [<commit> | <object>]
 'git tag' -d <tagname>...
-'git tag' [-n[<num>]] -l [--contains <commit>] [<pattern>...]
+'git tag' [-n[<num>]] -l [--contains <commit>]
+	[--column[=<options>] | --no-column] [<pattern>...]
 'git tag' -v <tagname>...
 
 DESCRIPTION
@@ -83,6 +84,14 @@ 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 b2644bc..eb7b6fc 100644
--- a/Makefile
+++ b/Makefile
@@ -2116,7 +2116,7 @@ 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 31f02e8..cecbe5c 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -15,6 +15,7 @@
 #include "diff.h"
 #include "revision.h"
 #include "gpg-interface.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>]",
@@ -30,6 +31,8 @@ struct tag_filter {
 	struct commit_list *with_commit;
 };
 
+static int colopts;
+
 static int match_pattern(const char **patterns, const char *ref)
 {
 	/* no pattern means match everything */
@@ -230,6 +233,9 @@ 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;
+	status = git_column_config(var, value, "tag", &colopts);
+	if (status <= 0)
+		return status;
 	return git_default_config(var, value, cb);
 }
 
@@ -409,6 +415,7 @@ 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"),
 		{
@@ -421,6 +428,8 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 	};
 
 	git_config(git_tag_config, NULL);
+	if (!colopts)
+		colopts = git_colopts;
 
 	memset(&opt, 0, sizeof(opt));
 
@@ -441,9 +450,19 @@ 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);
+	if (list) {
+		int ret;
+		if (lines == -1) {
+			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 (lines == -1)
+			stop_column_filter();
+		return ret;
+	}
 	if (lines != -1)
 		die(_("-n option is only allowed with -l."));
 	if (with_commit)
-- 
1.7.8.36.g69ee2

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