setup: split off code to handle stumbling upon a repository

If a repository is found as an ancestor of the original
working directory, it is assumed by default to be bare.
Handle this case with its own function.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/setup.c b/setup.c
index 3d25d0f205ba7ad555a7f26e40be7590ac16d926..ec11c462669053b9841166da310457ca8c53ae48 100644 (file)
--- a/setup.c
+++ b/setup.c
@@ -360,6 +360,24 @@ static int cwd_contains_git_dir(const char **gitfile_dirp)
        return is_git_directory(DEFAULT_GIT_DIR_ENVIRONMENT);
 }
 
+static const char *setup_bare_git_dir(const char *work_tree_env,
+               int offset, int len, char *cwd, int *nongit_ok)
+{
+       int root_len;
+
+       inside_git_dir = 1;
+       if (!work_tree_env)
+               inside_work_tree = 0;
+       if (offset != len) {
+               root_len = offset_1st_component(cwd);
+               cwd[offset > root_len ? offset : root_len] = '\0';
+               set_git_dir(cwd);
+       } else
+               set_git_dir(".");
+       check_repository_format_gently(nongit_ok);
+       return NULL;
+}
+
 /*
  * We cannot decide in this function whether we are in the work tree or
  * not, since the config can only be read _after_ this function was called.
@@ -421,19 +439,9 @@ const char *setup_git_directory_gently(int *nongit_ok)
        for (;;) {
                if (cwd_contains_git_dir(&gitfile_dir))
                        break;
-               if (is_git_directory(".")) {
-                       inside_git_dir = 1;
-                       if (!work_tree_env)
-                               inside_work_tree = 0;
-                       if (offset != len) {
-                               root_len = offset_1st_component(cwd);
-                               cwd[offset > root_len ? offset : root_len] = '\0';
-                               set_git_dir(cwd);
-                       } else
-                               set_git_dir(".");
-                       check_repository_format_gently(nongit_ok);
-                       return NULL;
-               }
+               if (is_git_directory("."))
+                       return setup_bare_git_dir(work_tree_env, offset,
+                                                       len, cwd, nongit_ok);
                while (--offset > ceil_offset && cwd[offset] != '/');
                if (offset <= ceil_offset) {
                        if (nongit_ok) {