[PATCH 02/10] config: add core.preferredPackVersion

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 Documentation/config.txt | 5 +++++
 cache.h                  | 1 +
 config.c                 | 5 +++++
 environment.c            | 1 +
 4 files changed, 12 insertions(+)

diff --git a/Documentation/config.txt b/Documentation/config.txt
index ec57a15..6e7037b 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -644,6 +644,11 @@ core.abbrev::
 	for abbreviated object names to stay unique for sufficiently long
 	time.
 
+core.preferredPackVersion::
+	This is the preferred pack format version for various operations
+	that may produce pack files such as clone, fetch, push or repack.
+	Valid values are 2 and 4. The default value is 2.
+
 add.ignore-errors::
 add.ignoreErrors::
 	Tells 'git add' to continue adding files when some files cannot be
diff --git a/cache.h b/cache.h
index b68ad5a..20c2d6d 100644
--- a/cache.h
+++ b/cache.h
@@ -597,6 +597,7 @@ extern int fsync_object_files;
 extern int core_preload_index;
 extern int core_apply_sparse_checkout;
 extern int precomposed_unicode;
+extern int core_default_pack_version;
 
 /*
  * The character that begins a commented line in user-editable file
diff --git a/config.c b/config.c
index e13a7b6..02af0d1 100644
--- a/config.c
+++ b/config.c
@@ -831,6 +831,11 @@ static int git_default_core_config(const char *var, const char *value)
 		return 0;
 	}
 
+	if (!strcmp(var, "core.preferredpackversion")) {
+		core_default_pack_version = git_config_int(var, value);
+		return 0;
+	}
+
 	/* Add other config variables here and to Documentation/config.txt. */
 	return 0;
 }
diff --git a/environment.c b/environment.c
index 5398c36..24c43ba 100644
--- a/environment.c
+++ b/environment.c
@@ -62,6 +62,7 @@ int merge_log_config = -1;
 int precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */
 struct startup_info *startup_info;
 unsigned long pack_size_limit_cfg;
+int core_default_pack_version = 2;
 
 /*
  * The character that begins a commented line in user-editable file
-- 
1.8.2.82.gc24b958