[PATCH 10/16] branch: add --column

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 Documentation/git-branch.txt |    6 ++++++
 Makefile                     |    2 +-
 builtin/branch.c             |   23 +++++++++++++++++++----
 3 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt
index 9106d38..8a05784 100644
--- a/Documentation/git-branch.txt
+++ b/Documentation/git-branch.txt
@@ -9,6 +9,7 @@ SYNOPSIS
 --------
 [verse]
 'git branch' [--color[=<when>] | --no-color] [-r | -a]
+	[--column[=<options>] | --no-column]
 	[-v [--abbrev=<length> | --no-abbrev]]
 	[(--merged | --no-merged | --contains) [<commit>]]
 'git branch' [--set-upstream | --track | --no-track] [-l] [-f] <branchname> [<start-point>]
@@ -99,6 +100,11 @@ OPTIONS
 	default to color output.
 	Same as `--color=never`.
 
+--column::
+--no-column::
+	Whether whow branches in columns. See core.column for options.
+	This option is ignored in verbose mode.
+
 -r::
 	List or delete (if used with -d) the remote-tracking branches.
 
diff --git a/Makefile b/Makefile
index c9fd9aa..0e459e4 100644
--- a/Makefile
+++ b/Makefile
@@ -1958,7 +1958,7 @@ 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 http-backend.o: url.h
-column.o pager.o help.o tag.o: column.h
+branch.o column.o pager.o help.o tag.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/branch.c b/builtin/branch.c
index 9e546e4..d3eaa00 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -15,6 +15,8 @@
 #include "branch.h"
 #include "diff.h"
 #include "revision.h"
+#include "string-list.h"
+#include "column.h"
 
 static const char * const builtin_branch_usage[] = {
 	"git branch [options] [-r | -a] [--merged | --no-merged]",
@@ -53,6 +55,8 @@ static enum merge_filter {
 } merge_filter;
 static unsigned char merge_filter_ref[20];
 
+static struct string_list output;
+
 static int parse_branch_color_slot(const char *var, int ofs)
 {
 	if (!strcasecmp(var+ofs, "plain"))
@@ -451,7 +455,7 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
 		strbuf_release(&stat);
 		strbuf_release(&subject);
 	}
-	printf("%s\n", out.buf);
+	string_list_append(&output, out.buf);
 	strbuf_release(&name);
 	strbuf_release(&out);
 }
@@ -609,7 +613,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
 {
 	int delete = 0, rename = 0, force_create = 0;
 	int verbose = 0, abbrev = DEFAULT_ABBREV, detached = 0;
-	int reflog = 0;
+	int reflog = 0, column_mode;
 	enum branch_track track;
 	int kinds = REF_LOCAL_BRANCH;
 	struct commit_list *with_commit = NULL;
@@ -660,6 +664,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
 			PARSE_OPT_LASTARG_DEFAULT | PARSE_OPT_NONEG,
 			opt_parse_merge_filter, (intptr_t) "HEAD",
 		},
+		OPT_COLUMN(0, "column", &column_mode, "list branches in columns" ),
 		OPT_END(),
 	};
 
@@ -686,6 +691,9 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
 	}
 	hashcpy(merge_filter_ref, head_sha1);
 
+	column_mode = core_column | COL_ANSI;
+	output.strdup_strings = 1;
+
 	argc = parse_options(argc, argv, prefix, options, builtin_branch_usage,
 			     0);
 	if (!!delete + !!rename + !!force_create > 1)
@@ -693,8 +701,15 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
 
 	if (delete)
 		return delete_branches(argc, argv, delete > 1, kinds);
-	else if (argc == 0)
-		return print_ref_list(kinds, detached, verbose, abbrev, with_commit);
+	else if (argc == 0) {
+		int ret;
+		if (verbose)
+			column_mode = COL_MODE_PLAIN;
+
+		ret = print_ref_list(kinds, detached, verbose, abbrev, with_commit);
+		display_columns(&output, column_mode, term_columns(), 1, "");
+		return ret;
+	}
 	else if (rename && (argc == 1))
 		rename_branch(head, argv[0], rename > 1);
 	else if (rename && (argc == 2))
-- 
1.7.2.2