Merge branch 'jc/maint-mergetool-style-fix'

diff --git a/builtin/config.c b/builtin/config.c
index 33c8820af6fc73453b749ec6026077f76180e26c..ada6e1211462558f307dce6142b7b65d641c8e02 100644 (file)
--- a/builtin/config.c
+++ b/builtin/config.c
@@ -160,8 +160,8 @@ static int show_config(const char *key_, const char *value_, void *cb)
 
 static int get_value(const char *key_, const char *regex_)
 {
-       int ret = -1;
-       char *global = NULL, *repo_config = NULL;
+       int ret = CONFIG_GENERIC_ERROR;
+       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) {
@@ -198,11 +196,14 @@ static int get_value(const char *key_, const char *regex_)
                if (regcomp(key_regexp, key, REG_EXTENDED)) {
                        fprintf(stderr, "Invalid key pattern: %s\n", key_);
                        free(key);
+                       ret = CONFIG_INVALID_PATTERN;
                        goto free_strings;
                }
        } else {
-               if (git_config_parse_key(key_, &key, NULL))
+               if (git_config_parse_key(key_, &key, NULL)) {
+                       ret = CONFIG_INVALID_KEY;
                        goto free_strings;
+               }
        }
 
        if (regex_) {
@@ -214,6 +215,7 @@ static int get_value(const char *key_, const char *regex_)
                regexp = (regex_t*)xmalloc(sizeof(regex_t));
                if (regcomp(regexp, regex_, REG_EXTENDED)) {
                        fprintf(stderr, "Invalid pattern: %s\n", regex_);
+                       ret = CONFIG_INVALID_PATTERN;
                        goto free_strings;
                }
        }
@@ -229,6 +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)
@@ -238,6 +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);
 
@@ -255,6 +261,7 @@ static int get_value(const char *key_, const char *regex_)
 free_strings:
        free(repo_config);
        free(global);
+       free(xdg);
        return ret;
 }
 
@@ -379,13 +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(user_config, R_OK) &&
+                   xdg_config && !access(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();