[PATCH v4 14/27] setup.c: convert is_git_directory() to use strbuf

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
 setup.c | 37 +++++++++++++++++++++----------------
 1 file changed, 21 insertions(+), 16 deletions(-)

diff --git a/setup.c b/setup.c
index 6c3f85f..4994437 100644
--- a/setup.c
+++ b/setup.c
@@ -184,31 +184,36 @@ void verify_non_filename(const char *prefix, const char 
*arg)
  */
 int is_git_directory(const char *suspect)
 {
-       char path[PATH_MAX];
-       size_t len = strlen(suspect);
+       struct strbuf path = STRBUF_INIT;
+       int ret = 0;
+       size_t len;
 
-       if (PATH_MAX <= len + strlen("/objects"))
-               die("Too long path: %.*s", 60, suspect);
-       strcpy(path, suspect);
+       strbuf_addstr(&path, suspect);
+       len = path.len;
        if (getenv(DB_ENVIRONMENT)) {
                if (access(getenv(DB_ENVIRONMENT), X_OK))
-                       return 0;
+                       goto done;
        }
        else {
-               strcpy(path + len, "/objects");
-               if (access(path, X_OK))
-                       return 0;
+               strbuf_addstr(&path, "/objects");
+               if (access(path.buf, X_OK))
+                       goto done;
        }
 
-       strcpy(path + len, "/refs");
-       if (access(path, X_OK))
-               return 0;
+       strbuf_setlen(&path, len);
+       strbuf_addstr(&path, "/refs");
+       if (access(path.buf, X_OK))
+               goto done;
 
-       strcpy(path + len, "/HEAD");
-       if (validate_headref(path))
-               return 0;
+       strbuf_setlen(&path, len);
+       strbuf_addstr(&path, "/HEAD");
+       if (validate_headref(path.buf))
+               goto done;
 
-       return 1;
+       ret = 1;
+done:
+       strbuf_release(&path);
+       return ret;
 }
 
 int is_inside_git_dir(void)
-- 
1.9.0.40.gaa8c3ea

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