format_sanitized_subject: Don't trim past initial length of strbuf

diff --git a/config.c b/config.c
index 790405a213b12a4d1c62d9354e1292e0dc6af057..50efd639c4d68af1428a8a45606ae4897a8d2dd9 100644 (file)
--- a/config.c
+++ b/config.c
@@ -565,6 +565,15 @@ static int git_default_branch_config(const char *var, const char *value)
        return 0;
 }
 
+static int git_default_mailmap_config(const char *var, const char *value)
+{
+       if (!strcmp(var, "mailmap.file"))
+               return git_config_string(&git_mailmap_file, var, value);
+
+       /* Add other config variables here and to Documentation/config.txt. */
+       return 0;
+}
+
 int git_default_config(const char *var, const char *value, void *dummy)
 {
        if (!prefixcmp(var, "core."))
@@ -579,6 +588,9 @@ int git_default_config(const char *var, const char *value, void *dummy)
        if (!prefixcmp(var, "branch."))
                return git_default_branch_config(var, value);
 
+       if (!prefixcmp(var, "mailmap."))
+               return git_default_mailmap_config(var, value);
+
        if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) {
                pager_use_color = git_config_bool(var,value);
                return 0;
@@ -632,28 +644,37 @@ int git_config_global(void)
 
 int git_config(config_fn_t fn, void *data)
 {
-       int ret = 0;
+       int ret = 0, found = 0;
        char *repo_config = NULL;
        const char *home = NULL;
 
        /* Setting $GIT_CONFIG makes git read _only_ the given config file. */
        if (config_exclusive_filename)
                return git_config_from_file(fn, config_exclusive_filename, data);
-       if (git_config_system() && !access(git_etc_gitconfig(), R_OK))
+       if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) {
                ret += git_config_from_file(fn, git_etc_gitconfig(),
                                            data);
+               found += 1;
+       }
 
        home = getenv("HOME");
        if (git_config_global() && home) {
                char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
-               if (!access(user_config, R_OK))
+               if (!access(user_config, R_OK)) {
                        ret += git_config_from_file(fn, user_config, data);
+                       found += 1;
+               }
                free(user_config);
        }
 
        repo_config = git_pathdup("config");
-       ret += git_config_from_file(fn, repo_config, data);
+       if (!access(repo_config, R_OK)) {
+               ret += git_config_from_file(fn, repo_config, data);
+               found += 1;
+       }
        free(repo_config);
+       if (found == 0)
+               return -1;
        return ret;
 }