read-cache.c: refactor --ignore-missing implementation

diff --git a/commit.h b/commit.h
index 790e31bec85d9e2e8bdd8533b7d69af4c0f18ca4..c308674120112f09ff8a9625e357c62e2029bbba 100644 (file)
--- a/commit.h
+++ b/commit.h
@@ -62,6 +62,9 @@ struct commit_list *commit_list_insert_by_date(struct commit *item,
                                    struct commit_list **list);
 void commit_list_sort_by_date(struct commit_list **list);
 
+/* Shallow copy of the input list */
+struct commit_list *copy_commit_list(struct commit_list *list);
+
 void free_commit_list(struct commit_list *list);
 
 /* Commit formats */
@@ -201,6 +204,7 @@ extern void set_alternate_shallow_file(const char *path);
 extern int write_shallow_commits(struct strbuf *out, int use_pack_protocol);
 extern void setup_alternate_shallow(struct lock_file *shallow_lock,
                                    const char **alternate_shallow_file);
+extern char *setup_temporary_shallow(void);
 
 int is_descendant_of(struct commit *, struct commit_list *);
 int in_merge_bases(struct commit *, struct commit *);