[PATCH 2/4] config: make some helpers repo-aware

["Derrick Stolee via GitGitGadget" <gitgitgadget@gmail.com>]

From: Derrick Stolee <dstolee@microsoft.com>

As we prepare to add new config helpers to write into a config.worktree,
let's make some existing methods be available for writing to a config
file relative to a repository.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
---
 config.c | 29 ++++++++++++++++++++++++++---
 config.h |  7 +++++++
 2 files changed, 33 insertions(+), 3 deletions(-)

diff --git a/config.c b/config.c
index c5873f3a706..9c9eef16018 100644
--- a/config.c
+++ b/config.c
@@ -2882,7 +2882,12 @@ int git_config_set_gently(const char *key, const char *value)
 
 void git_config_set(const char *key, const char *value)
 {
-	git_config_set_multivar(key, value, NULL, 0);
+	repo_config_set(the_repository, key, value);
+}
+
+void repo_config_set(struct repository *r, const char *key, const char *value)
+{
+	repo_config_set_multivar(r, key, value, NULL, 0);
 
 	trace2_cmd_set_config(key, value);
 }
@@ -3177,14 +3182,32 @@ void git_config_set_multivar_in_file(const char *config_filename,
 int git_config_set_multivar_gently(const char *key, const char *value,
 				   const char *value_pattern, unsigned flags)
 {
-	return git_config_set_multivar_in_file_gently(NULL, key, value, value_pattern,
+	return repo_config_set_multivar_gently(the_repository, key, value,
+					       value_pattern, flags);
+}
+
+int repo_config_set_multivar_gently(struct repository *r, const char *key,
+				    const char *value,
+				    const char *value_pattern, unsigned flags)
+{
+	return git_config_set_multivar_in_file_gently(repo_git_path(r, "config"),
+						      key, value, value_pattern,
 						      flags);
 }
 
 void git_config_set_multivar(const char *key, const char *value,
 			     const char *value_pattern, unsigned flags)
 {
-	git_config_set_multivar_in_file(NULL, key, value, value_pattern,
+	repo_config_set_multivar(the_repository, key, value,
+				 value_pattern, flags);
+}
+
+void repo_config_set_multivar(struct repository *r, const char *key,
+			      const char *value, const char *value_pattern,
+			      unsigned flags)
+{
+	git_config_set_multivar_in_file(repo_git_path(r, "config"),
+					key, value, value_pattern,
 					flags);
 }
 
diff --git a/config.h b/config.h
index f119de01309..5531fc018e3 100644
--- a/config.h
+++ b/config.h
@@ -258,6 +258,11 @@ int git_config_set_gently(const char *, const char *);
  */
 void git_config_set(const char *, const char *);
 
+/**
+ * write config values to `.git/config`, takes a key/value pair as parameter.
+ */
+void repo_config_set(struct repository *, const char *, const char *);
+
 int git_config_parse_key(const char *, char **, size_t *);
 
 /*
@@ -281,6 +286,8 @@ int git_config_parse_key(const char *, char **, size_t *);
 
 int git_config_set_multivar_gently(const char *, const char *, const char *, unsigned);
 void git_config_set_multivar(const char *, const char *, const char *, unsigned);
+int repo_config_set_multivar_gently(struct repository *, const char *, const char *, const char *, unsigned);
+void repo_config_set_multivar(struct repository *, const char *, const char *, const char *, unsigned);
 int git_config_set_multivar_in_file_gently(const char *, const char *, const char *, const char *, unsigned);
 
 /**
-- 
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