path.c: add git_common_path() and strbuf_git_common_path()

diff --git a/path.c b/path.c
index 969b494d72dff1439150e7bb945339be07c4d475..2ebb23dd10e70b6c2ffc13a53477e515f6b080ca 100644 (file)
--- a/path.c
+++ b/path.c
@@ -503,6 +503,35 @@ void strbuf_git_path_submodule(struct strbuf *buf, const char *path,
        va_end(args);
 }
 
+static void do_git_common_path(struct strbuf *buf,
+                              const char *fmt,
+                              va_list args)
+{
+       strbuf_addstr(buf, get_git_common_dir());
+       if (buf->len && !is_dir_sep(buf->buf[buf->len - 1]))
+               strbuf_addch(buf, '/');
+       strbuf_vaddf(buf, fmt, args);
+       strbuf_cleanup_path(buf);
+}
+
+const char *git_common_path(const char *fmt, ...)
+{
+       struct strbuf *pathname = get_pathname();
+       va_list args;
+       va_start(args, fmt);
+       do_git_common_path(pathname, fmt, args);
+       va_end(args);
+       return pathname->buf;
+}
+
+void strbuf_git_common_path(struct strbuf *sb, const char *fmt, ...)
+{
+       va_list args;
+       va_start(args, fmt);
+       do_git_common_path(sb, fmt, args);
+       va_end(args);
+}
+
 int validate_headref(const char *path)
 {
        struct stat st;
@@ -702,17 +731,17 @@ static int calc_shared_perm(int mode)
 {
        int tweak;
 
-       if (shared_repository < 0)
-               tweak = -shared_repository;
+       if (get_shared_repository() < 0)
+               tweak = -get_shared_repository();
        else
-               tweak = shared_repository;
+               tweak = get_shared_repository();
 
        if (!(mode & S_IWUSR))
                tweak &= ~0222;
        if (mode & S_IXUSR)
                /* Copy read bits to execute bits */
                tweak |= (tweak & 0444) >> 2;
-       if (shared_repository < 0)
+       if (get_shared_repository() < 0)
                mode = (mode & ~0777) | tweak;
        else
                mode |= tweak;
@@ -725,7 +754,7 @@ int adjust_shared_perm(const char *path)
 {
        int old_mode, new_mode;
 
-       if (!shared_repository)
+       if (!get_shared_repository())
                return 0;
        if (get_st_mode_bits(path, &old_mode) < 0)
                return -1;