Documentation: fix remote.<name>.skipDefaultUpdate description
[gitweb.git] / setup.c
diff --git a/setup.c b/setup.c
index 06004f15874fbcbab50eafd272c5898a34fcdcfe..067f1be3f92c9f3a334c4b427f32b4f4fdb8225b 100644 (file)
--- a/setup.c
+++ b/setup.c
@@ -206,6 +206,22 @@ static const char *set_work_tree(const char *dir)
        return NULL;
 }
 
+static int check_repository_format_gently(int *nongit_ok)
+{
+       git_config(check_repository_format_version);
+       if (GIT_REPO_VERSION < repository_format_version) {
+               if (!nongit_ok)
+                       die ("Expected git repo version <= %d, found %d",
+                            GIT_REPO_VERSION, repository_format_version);
+               warning("Expected git repo version <= %d, found %d",
+                       GIT_REPO_VERSION, repository_format_version);
+               warning("Please upgrade Git");
+               *nongit_ok = -1;
+               return -1;
+       }
+       return 0;
+}
+
 /*
  * 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.
@@ -227,9 +243,27 @@ const char *setup_git_directory_gently(int *nongit_ok)
                if (PATH_MAX - 40 < strlen(gitdirenv))
                        die("'$%s' too big", GIT_DIR_ENVIRONMENT);
                if (is_git_directory(gitdirenv)) {
-                       if (!work_tree_env)
-                               return set_work_tree(gitdirenv);
-                       return NULL;
+                       static char buffer[1024 + 1];
+                       const char *retval;
+
+                       if (!work_tree_env) {
+                               retval = set_work_tree(gitdirenv);
+                               /* config may override worktree */
+                               if (check_repository_format_gently(nongit_ok))
+                                       return NULL;
+                               return retval;
+                       }
+                       if (check_repository_format_gently(nongit_ok))
+                               return NULL;
+                       retval = get_relative_cwd(buffer, sizeof(buffer) - 1,
+                                       get_git_work_tree());
+                       if (!retval || !*retval)
+                               return NULL;
+                       set_git_dir(make_absolute_path(gitdirenv));
+                       if (chdir(work_tree_env) < 0)
+                               die ("Could not chdir to %s", work_tree_env);
+                       strcat(buffer, "/");
+                       return retval;
                }
                if (nongit_ok) {
                        *nongit_ok = 1;
@@ -259,6 +293,7 @@ const char *setup_git_directory_gently(int *nongit_ok)
                        if (!work_tree_env)
                                inside_work_tree = 0;
                        setenv(GIT_DIR_ENVIRONMENT, ".", 1);
+                       check_repository_format_gently(nongit_ok);
                        return NULL;
                }
                chdir("..");
@@ -279,6 +314,8 @@ const char *setup_git_directory_gently(int *nongit_ok)
        if (!work_tree_env)
                inside_work_tree = 1;
        git_work_tree_cfg = xstrndup(cwd, offset);
+       if (check_repository_format_gently(nongit_ok))
+               return NULL;
        if (offset == len)
                return NULL;
 
@@ -329,11 +366,7 @@ int check_repository_format_version(const char *var, const char *value)
 
 int check_repository_format(void)
 {
-       git_config(check_repository_format_version);
-       if (GIT_REPO_VERSION < repository_format_version)
-               die ("Expected git repo version <= %d, found %d",
-                    GIT_REPO_VERSION, repository_format_version);
-       return 0;
+       return check_repository_format_gently(NULL);
 }
 
 const char *setup_git_directory(void)