[PATCH 36/42] Add git_config_early()

[Nguyán ThÃi Ngác Duy <pclouds@xxxxxxxxx>]

This version of git_config() will be used during repository setup.
As a repository is being set up, $GIT_DIR is not nailed down yet,
git_pathdup() should not be used to get $GIT_DIR/config.

Signed-off-by: Nguyán ThÃi Ngác Duy <pclouds@xxxxxxxxx>
Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
 cache.h  |    1 +
 config.c |   19 ++++++++++++++-----
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/cache.h b/cache.h
index d1bee5d..123dd4b 100644
--- a/cache.h
+++ b/cache.h
@@ -986,6 +986,7 @@ extern int git_config_parse_parameter(const char *text);
 extern int git_config_parse_environment(void);
 extern int git_config_from_parameters(config_fn_t fn, void *data);
 extern int git_config(config_fn_t fn, void *);
+extern int git_config_early(config_fn_t fn, void *, const char *repo_config);
 extern int git_parse_ulong(const char *, unsigned long *);
 extern int git_config_int(const char *, const char *);
 extern unsigned long git_config_ulong(const char *, const char *);
diff --git a/config.c b/config.c
index 4b0a820..c431f41 100644
--- a/config.c
+++ b/config.c
@@ -835,10 +835,9 @@ int git_config_from_parameters(config_fn_t fn, void *data)
 	return 0;
 }
 
-int git_config(config_fn_t fn, void *data)
+int git_config_early(config_fn_t fn, void *data, const char *repo_config)
 {
 	int ret = 0, found = 0;
-	char *repo_config = NULL;
 	const char *home = NULL;
 
 	/* Setting $GIT_CONFIG makes git read _only_ the given config file. */
@@ -860,12 +859,10 @@ int git_config(config_fn_t fn, void *data)
 		free(user_config);
 	}
 
-	repo_config = git_pathdup("config");
-	if (!access(repo_config, R_OK)) {
+	if (repo_config && !access(repo_config, R_OK)) {
 		ret += git_config_from_file(fn, repo_config, data);
 		found += 1;
 	}
-	free(repo_config);
 
 	ret += git_config_from_parameters(fn, data);
 	if (config_parameters)
@@ -876,6 +873,18 @@ int git_config(config_fn_t fn, void *data)
 	return ret;
 }
 
+int git_config(config_fn_t fn, void *data)
+{
+	char *repo_config = NULL;
+	int ret;
+
+	repo_config = git_pathdup("config");
+	ret = git_config_early(fn, data, repo_config);
+	if (repo_config)
+		free(repo_config);
+	return ret;
+}
+
 /*
  * Find all the stuff for git_config_set() below.
  */
-- 
1.7.0.2.445.gcbdb3

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