config: Introduce functions to write non-standard file

Introduce two new functions corresponding to "git_config_set" and
"git_config_set_multivar" to write a non-standard configuration file.
Expose these new functions in cache.h for other git programs to use.

Helped-by: Jeff King <peff@peff.net>
Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/cache.h b/cache.h
index e11cf6ab1c73ac97c94e76e8c8699d55af95b978..58a277d7a58af93b0d17c57721fbfc058e287279 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -1051,9 +1051,11 @@ extern int git_config_bool(const char *, const char *);
 extern int git_config_maybe_bool(const char *, const char *);
 extern int git_config_string(const char **, const char *, const char *);
 extern int git_config_pathname(const char **, const char *, const char *);
+extern int git_config_set_in_file(const char *, const char *, const char *);
 extern int git_config_set(const char *, const char *);
 extern int git_config_parse_key(const char *, char **, int *);
 extern int git_config_set_multivar(const char *, const char *, const char *, int);
+extern int git_config_set_multivar_in_file(const char *, const char *, const char *, const char *, int);
 extern int git_config_rename_section(const char *, const char *);
 extern const char *git_etc_gitconfig(void);
 extern int check_repository_format_version(const char *var, const char *value, void *cb);

diff --git a/config.c b/config.c
index e0b3b80d92ece9f37e0e76292bd61ce97271fcce..275427b53aaa87a5e06ed070b1634ce50a2040d6 100644 (file)
--- a/config.c
+++ b/config.c
@@ -1073,6 +1073,12 @@ static ssize_t find_beginning_of_line(const char *contents, size_t size,
        return offset;
 }
 
+int git_config_set_in_file(const char *config_filename,
+                       const char *key, const char *value)
+{
+       return git_config_set_multivar_in_file(config_filename, key, value, NULL, 0);
+}
+
 int git_config_set(const char *key, const char *value)
 {
        return git_config_set_multivar(key, value, NULL, 0);
@@ -1170,19 +1176,14 @@ int git_config_parse_key(const char *key, char **store_key, int *baselen_)
  * - the config file is removed and the lock file rename()d to it.
  *
  */
-int git_config_set_multivar(const char *key, const char *value,
-       const char *value_regex, int multi_replace)
+int git_config_set_multivar_in_file(const char *config_filename,
+                               const char *key, const char *value,
+                               const char *value_regex, int multi_replace)
 {
        int fd = -1, in_fd;
        int ret;
-       char *config_filename;
        struct lock_file *lock = NULL;
 
-       if (config_exclusive_filename)
-               config_filename = xstrdup(config_exclusive_filename);
-       else
-               config_filename = git_pathdup("config");
-
        /* parse-key returns negative; flip the sign to feed exit(3) */
        ret = 0 - git_config_parse_key(key, &store.key, &store.baselen);
        if (ret)
@@ -1359,7 +1360,6 @@ int git_config_set_multivar(const char *key, const char *value,
 out_free:
        if (lock)
                rollback_lock_file(lock);
-       free(config_filename);
        return ret;
 
 write_err_out:
@@ -1368,6 +1368,24 @@ int git_config_set_multivar(const char *key, const char *value,
 
 }
 
+int git_config_set_multivar(const char *key, const char *value,
+                       const char *value_regex, int multi_replace)
+{
+       const char *config_filename;
+       char *buf = NULL;
+       int ret;
+
+       if (config_exclusive_filename)
+               config_filename = config_exclusive_filename;
+       else
+               config_filename = buf = git_pathdup("config");
+
+       ret = git_config_set_multivar_in_file(config_filename, key, value,
+                                       value_regex, multi_replace);
+       free(buf);
+       return ret;
+}
+
 static int section_name_match (const char *buf, const char *name)
 {
        int i = 0, j = 0, dot = 0;