From 750e8a60d69274acd820f812704c75927d82728e Mon Sep 17 00:00:00 2001
From: =?utf8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?=
 <pclouds@gmail.com>
Date: Fri, 22 Apr 2016 20:01:28 +0700
Subject: [PATCH] worktree.c: mark current worktree
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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 worktree.c | 24 ++++++++++++++++++++++++
 worktree.h |  1 +
 2 files changed, 25 insertions(+)

diff --git a/worktree.c b/worktree.c
index 360ba417e8..dc092a7100 100644
--- a/worktree.c
+++ b/worktree.c
@@ -2,6 +2,7 @@
 #include "refs.h"
 #include "strbuf.h"
 #include "worktree.h"
+#include "dir.h"
 
 void free_worktrees(struct worktree **worktrees)
 {
@@ -94,6 +95,7 @@ static struct worktree *get_main_worktree(void)
 	worktree->is_bare = is_bare;
 	worktree->head_ref = NULL;
 	worktree->is_detached = is_detached;
+	worktree->is_current = 0;
 	add_head_info(&head_ref, worktree);
 
 done:
@@ -138,6 +140,7 @@ static struct worktree *get_linked_worktree(const char *id)
 	worktree->is_bare = 0;
 	worktree->head_ref = NULL;
 	worktree->is_detached = is_detached;
+	worktree->is_current = 0;
 	add_head_info(&head_ref, worktree);
 
 done:
@@ -147,6 +150,25 @@ done:
 	return worktree;
 }
 
+static void mark_current_worktree(struct worktree **worktrees)
+{
+	struct strbuf git_dir = STRBUF_INIT;
+	struct strbuf path = STRBUF_INIT;
+	int i;
+
+	strbuf_addstr(&git_dir, absolute_path(get_git_dir()));
+	for (i = 0; worktrees[i]; i++) {
+		struct worktree *wt = worktrees[i];
+		strbuf_addstr(&path, absolute_path(get_worktree_git_dir(wt)));
+		wt->is_current = !fspathcmp(git_dir.buf, path.buf);
+		strbuf_reset(&path);
+		if (wt->is_current)
+			break;
+	}
+	strbuf_release(&git_dir);
+	strbuf_release(&path);
+}
+
 struct worktree **get_worktrees(void)
 {
 	struct worktree **list = NULL;
@@ -178,6 +200,8 @@ struct worktree **get_worktrees(void)
 	}
 	ALLOC_GROW(list, counter + 1, alloc);
 	list[counter] = NULL;
+
+	mark_current_worktree(list);
 	return list;
 }
 
diff --git a/worktree.h b/worktree.h
index ca50e73b58..ccdf69a876 100644
--- a/worktree.h
+++ b/worktree.h
@@ -8,6 +8,7 @@ struct worktree {
 	unsigned char head_sha1[20];
 	int is_detached;
 	int is_bare;
+	int is_current;
 };
 
 /* Functions for acting on the information about worktrees. */
-- 
2.43.2