[PATCH 13/25] worktree.c: add clear_worktree()

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
 worktree.c | 14 +++++++++++---
 worktree.h |  5 +++++
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/worktree.c b/worktree.c
index 4c38414..b4e4b57 100644
--- a/worktree.c
+++ b/worktree.c
@@ -4,14 +4,22 @@
 #include "worktree.h"
 #include "dir.h"
 
+void clear_worktree(struct worktree *wt)
+{
+       if (!wt)
+               return;
+       free(wt->path);
+       free(wt->id);
+       free(wt->head_ref);
+       memset(wt, 0, sizeof(*wt));
+}
+
 void free_worktrees(struct worktree **worktrees)
 {
        int i = 0;
 
        for (i = 0; worktrees[i]; i++) {
-               free(worktrees[i]->path);
-               free(worktrees[i]->id);
-               free(worktrees[i]->head_ref);
+               clear_worktree(worktrees[i]);
                free(worktrees[i]);
        }
        free (worktrees);
diff --git a/worktree.h b/worktree.h
index e89d423..0ba07ab 100644
--- a/worktree.h
+++ b/worktree.h
@@ -28,6 +28,11 @@ extern struct worktree **get_worktrees(void);
 extern const char *get_worktree_git_dir(const struct worktree *wt);
 
 /*
+ * Free up the memory for worktree
+ */
+extern void clear_worktree(struct worktree *);
+
+/*
  * Free up the memory for worktree(s)
  */
 extern void free_worktrees(struct worktree **);
-- 
2.8.0.rc0.210.gd302cd2

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