add line number and file name info to `config_set`

Store file name and line number for each key-value pair in the cache
during parsing of the configuration files.

Signed-off-by: Tanay Abhra <tanayabh@gmail.com>
Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/cache.h b/cache.h
index 7292aefa2e3cc4649825364b1b61b38c89f1a4a7..0b1bdfd896dccddcc1cdc167f300f607767da77c 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -1383,6 +1383,11 @@ extern int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest);
 extern int git_config_get_maybe_bool(const char *key, int *dest);
 extern int git_config_get_pathname(const char *key, const char **dest);
 
+struct key_value_info {
+       const char *filename;
+       int linenr;
+};
+
 extern int committer_ident_sufficiently_given(void);
 extern int author_ident_sufficiently_given(void);
 

diff --git a/config.c b/config.c
index 22fef4050bb5d411ea991f5a84644b9308f2f836..1ac85edce4900d0ac3e5a93f56dfe0555bca22e4 100644 (file)
--- a/config.c
+++ b/config.c
@@ -1262,6 +1262,9 @@ static struct config_set_element *configset_find_element(struct config_set *cs,
 static int configset_add_value(struct config_set *cs, const char *key, const char *value)
 {
        struct config_set_element *e;
+       struct string_list_item *si;
+       struct key_value_info *kv_info = xmalloc(sizeof(*kv_info));
+
        e = configset_find_element(cs, key);
        /*
         * Since the keys are being fed by git_config*() callback mechanism, they
@@ -1274,7 +1277,16 @@ static int configset_add_value(struct config_set *cs, const char *key, const cha
                string_list_init(&e->value_list, 1);
                hashmap_add(&cs->config_hash, e);
        }
-       string_list_append_nodup(&e->value_list, value ? xstrdup(value) : NULL);
+       si = string_list_append_nodup(&e->value_list, value ? xstrdup(value) : NULL);
+       if (cf) {
+               kv_info->filename = strintern(cf->name);
+               kv_info->linenr = cf->linenr;
+       } else {
+               /* for values read from `git_config_from_parameters()` */
+               kv_info->filename = NULL;
+               kv_info->linenr = -1;
+       }
+       si->util = kv_info;
 
        return 0;
 }
@@ -1301,7 +1313,7 @@ void git_configset_clear(struct config_set *cs)
        hashmap_iter_init(&cs->config_hash, &iter);
        while ((entry = hashmap_iter_next(&iter))) {
                free(entry->key);
-               string_list_clear(&entry->value_list, 0);
+               string_list_clear(&entry->value_list, 1);
        }
        hashmap_free(&cs->config_hash, 1);
        cs->hash_initialized = 0;