builtin-help: make some internal functions available to other builtins

diff --git a/config.c b/config.c
index 58749bf41627e3a18b4808f92f5317528e85599f..53f04a076a7275965090edd4ca2a34652c4f5679 100644 (file)
--- a/config.c
+++ b/config.c
@@ -16,6 +16,8 @@ static int config_linenr;
 static int config_file_eof;
 static int zlib_compression_seen;
 
+const char *config_exclusive_filename = NULL;
+
 static int get_next_char(void)
 {
        int c;
@@ -339,6 +341,10 @@ static int git_default_core_config(const char *var, const char *value)
                trust_executable_bit = git_config_bool(var, value);
                return 0;
        }
+       if (!strcmp(var, "core.trustctime")) {
+               trust_ctime = git_config_bool(var, value);
+               return 0;
+       }
 
        if (!strcmp(var, "core.quotepath")) {
                quote_path_fully = git_config_bool(var, value);
@@ -579,15 +585,8 @@ int git_config_from_file(config_fn_t fn, const char *filename, void *data)
 const char *git_etc_gitconfig(void)
 {
        static const char *system_wide;
-       if (!system_wide) {
-               system_wide = ETC_GITCONFIG;
-               if (!is_absolute_path(system_wide)) {
-                       /* interpret path relative to exec-dir */
-                       struct strbuf d = STRBUF_INIT;
-                       strbuf_addf(&d, "%s/%s", git_exec_path(), system_wide);
-                       system_wide = strbuf_detach(&d, NULL);
-               }
-       }
+       if (!system_wide)
+               system_wide = system_path(ETC_GITCONFIG);
        return system_wide;
 }
 
@@ -611,31 +610,28 @@ int git_config(config_fn_t fn, void *data)
 {
        int ret = 0;
        char *repo_config = NULL;
-       const char *home = NULL, *filename;
+       const char *home = NULL;
 
        /* $GIT_CONFIG makes git read _only_ the given config file,
         * $GIT_CONFIG_LOCAL will make it process it in addition to the
         * global config file, the same way it would the per-repository
         * config file otherwise. */
-       filename = getenv(CONFIG_ENVIRONMENT);
-       if (!filename) {
-               if (git_config_system() && !access(git_etc_gitconfig(), R_OK))
-                       ret += git_config_from_file(fn, git_etc_gitconfig(),
-                               data);
-               home = getenv("HOME");
-               filename = getenv(CONFIG_LOCAL_ENVIRONMENT);
-               if (!filename)
-                       filename = repo_config = xstrdup(git_path("config"));
-       }
+       if (config_exclusive_filename)
+               return git_config_from_file(fn, config_exclusive_filename, data);
+       if (git_config_system() && !access(git_etc_gitconfig(), R_OK))
+               ret += git_config_from_file(fn, git_etc_gitconfig(),
+                                           data);
 
+       home = getenv("HOME");
        if (git_config_global() && home) {
                char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
                if (!access(user_config, R_OK))
-                       ret = git_config_from_file(fn, user_config, data);
+                       ret += git_config_from_file(fn, user_config, data);
                free(user_config);
        }
 
-       ret += git_config_from_file(fn, filename, data);
+       repo_config = xstrdup(git_path("config"));
+       ret += git_config_from_file(fn, repo_config, data);
        free(repo_config);
        return ret;
 }
@@ -873,13 +869,10 @@ int git_config_set_multivar(const char* key, const char* value,
        struct lock_file *lock = NULL;
        const char* last_dot = strrchr(key, '.');
 
-       config_filename = getenv(CONFIG_ENVIRONMENT);
-       if (!config_filename) {
-               config_filename = getenv(CONFIG_LOCAL_ENVIRONMENT);
-               if (!config_filename)
-                       config_filename  = git_path("config");
-       }
-       config_filename = xstrdup(config_filename);
+       if (config_exclusive_filename)
+               config_filename = xstrdup(config_exclusive_filename);
+       else
+               config_filename = xstrdup(git_path("config"));
 
        /*
         * Since "key" actually contains the section name and the real
@@ -1136,13 +1129,10 @@ int git_config_rename_section(const char *old_name, const char *new_name)
        int out_fd;
        char buf[1024];
 
-       config_filename = getenv(CONFIG_ENVIRONMENT);
-       if (!config_filename) {
-               config_filename = getenv(CONFIG_LOCAL_ENVIRONMENT);
-               if (!config_filename)
-                       config_filename  = git_path("config");
-       }
-       config_filename = xstrdup(config_filename);
+       if (config_exclusive_filename)
+               config_filename = xstrdup(config_exclusive_filename);
+       else
+               config_filename = xstrdup(git_path("config"));
        out_fd = hold_lock_file_for_update(lock, config_filename, 0);
        if (out_fd < 0) {
                ret = error("could not lock config file %s", config_filename);