fetch-pack: avoid repeatedly re-scanning pack directory

diff --git a/builtin/config.c b/builtin/config.c
index b44277c23e293f42186230cc7feb9099f2058b2b..442ccc2497c4e2e889d9de55359e36a1db07c1a4 100644 (file)
--- a/builtin/config.c
+++ b/builtin/config.c
@@ -161,7 +161,7 @@ static int show_config(const char *key_, const char *value_, void *cb)
 static int get_value(const char *key_, const char *regex_)
 {
        int ret = CONFIG_GENERIC_ERROR;
-       char *global = NULL, *repo_config = NULL;
+       char *global = NULL, *xdg = NULL, *repo_config = NULL;
        const char *system_wide = NULL, *local;
        struct config_include_data inc = CONFIG_INCLUDE_INIT;
        config_fn_t fn;
@@ -169,12 +169,10 @@ static int get_value(const char *key_, const char *regex_)
 
        local = given_config_file;
        if (!local) {
-               const char *home = getenv("HOME");
                local = repo_config = git_pathdup("config");
-               if (home)
-                       global = xstrdup(mkpath("%s/.gitconfig", home));
                if (git_config_system())
                        system_wide = git_etc_gitconfig();
+               home_config_paths(&global, &xdg, "config");
        }
 
        if (use_key_regexp) {
@@ -233,6 +231,8 @@ static int get_value(const char *key_, const char *regex_)
 
        if (do_all && system_wide)
                git_config_from_file(fn, system_wide, data);
+       if (do_all && xdg)
+               git_config_from_file(fn, xdg, data);
        if (do_all && global)
                git_config_from_file(fn, global, data);
        if (do_all)
@@ -242,6 +242,8 @@ static int get_value(const char *key_, const char *regex_)
                git_config_from_file(fn, local, data);
        if (!do_all && !seen && global)
                git_config_from_file(fn, global, data);
+       if (!do_all && !seen && xdg)
+               git_config_from_file(fn, xdg, data);
        if (!do_all && !seen && system_wide)
                git_config_from_file(fn, system_wide, data);
 
@@ -259,6 +261,7 @@ static int get_value(const char *key_, const char *regex_)
 free_strings:
        free(repo_config);
        free(global);
+       free(xdg);
        return ret;
 }
 
@@ -383,13 +386,25 @@ int cmd_config(int argc, const char **argv, const char *prefix)
        }
 
        if (use_global_config) {
-               char *home = getenv("HOME");
-               if (home) {
-                       char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
-                       given_config_file = user_config;
-               } else {
+               char *user_config = NULL;
+               char *xdg_config = NULL;
+
+               home_config_paths(&user_config, &xdg_config, "config");
+
+               if (!user_config)
+                       /*
+                        * It is unknown if HOME/.gitconfig exists, so
+                        * we do not know if we should write to XDG
+                        * location; error out even if XDG_CONFIG_HOME
+                        * is set and points at a sane location.
+                        */
                        die("$HOME not set");
-               }
+
+               if (access_or_warn(user_config, R_OK) &&
+                   xdg_config && !access_or_warn(xdg_config, R_OK))
+                       given_config_file = xdg_config;
+               else
+                       given_config_file = user_config;
        }
        else if (use_system_config)
                given_config_file = git_etc_gitconfig();