_GIT_INDEX_OUTPUT: allow plumbing to output to an alternative index file.

diff --git a/cache.h b/cache.h
index 384b260227dfb2fa30ecc175681b9b8d73a3577a..59a05c1a459fcbb014b3d93ac434608a09fa8d30 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -147,6 +147,7 @@ enum object_type {
 #define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
 #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
 #define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
+#define INDEX_OUTPUT_ENVIRONMENT "_GIT_INDEX_OUTPUT"
 #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE"
 #define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR"
 #define CONFIG_ENVIRONMENT "GIT_CONFIG"
@@ -212,6 +213,10 @@ struct lock_file {
 };
 extern int hold_lock_file_for_update(struct lock_file *, const char *path, int);
 extern int commit_lock_file(struct lock_file *);
+
+extern int hold_locked_index(struct lock_file *, int);
+extern int commit_locked_index(struct lock_file *);
+
 extern void rollback_lock_file(struct lock_file *);
 extern int delete_ref(const char *, unsigned char *sha1);