setup: clean up setup_discovered_git_dir()

[git.git] / setup.c

diff --git a/setup.c b/setup.c
index a6cc04473018bd2989ff8f02564e0920d6a1e954..3ee9c2eec842900dac6bf9717c1739b111f89893 100644 (file)
--- a/setup.c
+++ b/setup.c
@@ -362,39 +362,27 @@ static const char *setup_explicit_git_dir(const char *gitdirenv,
        return retval;
 }
 
-static int cwd_contains_git_dir(const char **gitfile_dirp)
+static const char *setup_discovered_git_dir(const char *gitdir,
+                                           char *cwd, int offset, int len,
+                                           int *nongit_ok)
 {
-       const char *gitfile_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
-       *gitfile_dirp = gitfile_dir;
-       if (gitfile_dir) {
-               if (set_git_dir(gitfile_dir))
-                       die("Repository setup failed");
-               return 1;
-       }
-       if (is_git_directory(DEFAULT_GIT_DIR_ENVIRONMENT)) {
-               *gitfile_dirp = DEFAULT_GIT_DIR_ENVIRONMENT;
-               return 1;
-       }
-       return 0;
-}
+       if (check_repository_format_gently(gitdir, nongit_ok))
+               return NULL;
 
-static const char *setup_discovered_git_dir(const char *work_tree_env,
-                                           const char *gitdir,
-                                           int offset, int len,
-                                           char *cwd, int *nongit_ok)
-{
-       int root_len;
-       char *work_tree;
+       /* #16.2, #17.2, #20.2, #21.2, #24, #25, #28, #29 (see t1510) */
+       if (is_bare_repository_cfg > 0) {
+               set_git_dir(offset == len ? gitdir : make_absolute_path(gitdir));
+               if (chdir(cwd))
+                       die_errno("Could not come back to cwd");
+               return NULL;
+       }
 
+       /* #0, #1, #5, #8, #9, #12, #13 */
+       set_git_work_tree(".");
+       if (strcmp(gitdir, DEFAULT_GIT_DIR_ENVIRONMENT))
+               set_git_dir(gitdir);
        inside_git_dir = 0;
-       if (!work_tree_env)
-               inside_work_tree = 1;
-       root_len = offset_1st_component(cwd);
-       work_tree = xstrndup(cwd, offset > root_len ? offset : root_len);
-       set_git_work_tree(work_tree);
-       free(work_tree);
-       if (check_repository_format_gently(gitdir, nongit_ok))
-               return NULL;
+       inside_work_tree = 1;
        if (offset == len)
                return NULL;
 
@@ -456,8 +444,8 @@ static const char *setup_git_directory_gently_1(int *nongit_ok)
        const char *work_tree_env = getenv(GIT_WORK_TREE_ENVIRONMENT);
        const char *env_ceiling_dirs = getenv(CEILING_DIRECTORIES_ENVIRONMENT);
        static char cwd[PATH_MAX+1];
-       const char *gitdirenv;
-       const char *gitfile_dir;
+       const char *gitdirenv, *ret;
+       char *gitfile;
        int len, offset, ceil_offset;
        dev_t current_device = 0;
        int one_filesystem = 1;
@@ -502,11 +490,23 @@ static const char *setup_git_directory_gently_1(int *nongit_ok)
        if (one_filesystem)
                current_device = get_device_or_die(".", NULL);
        for (;;) {
-               if (cwd_contains_git_dir(&gitfile_dir))
-                       return setup_discovered_git_dir(work_tree_env,
-                                                       gitfile_dir,
-                                                       offset, len,
-                                                       cwd, nongit_ok);
+               gitfile = (char*)read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
+               if (gitfile)
+                       gitdirenv = gitfile = xstrdup(gitfile);
+               else {
+                       if (is_git_directory(DEFAULT_GIT_DIR_ENVIRONMENT))
+                               gitdirenv = DEFAULT_GIT_DIR_ENVIRONMENT;
+               }
+
+               if (gitdirenv) {
+                       ret = setup_discovered_git_dir(gitdirenv,
+                                                      cwd, offset, len,
+                                                      nongit_ok);
+                       free(gitfile);
+                       return ret;
+               }
+               free(gitfile);
+
                if (is_git_directory("."))
                        return setup_bare_git_dir(cwd, offset, len, nongit_ok);