match-trees.h: move declarations for match-trees.c functions from cache.h

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

cache.h

@@ -603,10 +603,6 @@ int add_files_to_cache(const char *prefix, const struct pathspec *pathspec, int
 /* diff.c */
 extern int diff_auto_refresh_index;
 
-/* match-trees.c */
-void shift_tree(struct repository *, const struct object_id *, const struct object_id *, struct object_id *, int);
-void shift_tree_by(struct repository *, const struct object_id *, const struct object_id *, struct object_id *, const char *);
-
 /*
  * whitespace rules.
  * used by both diff and apply

match-trees.c

@@ -1,5 +1,6 @@
 #include "cache.h"
 #include "hex.h"
+#include "match-trees.h"
 #include "tree.h"
 #include "tree-walk.h"
 #include "object-store.h"

match-trees.h

@@ -0,0 +1,10 @@
+#ifndef MATCH_TREES_H
+#define MATCH_TREES_H
+
+struct object_id;
+struct repository;
+
+void shift_tree(struct repository *, const struct object_id *, const struct object_id *, struct object_id *, int);
+void shift_tree_by(struct repository *, const struct object_id *, const struct object_id *, struct object_id *, const char *);
+
+#endif /* MATCH_TREES_H */

merge-ort.c

@@ -31,6 +31,7 @@
 #include "hex.h"
 #include "entry.h"
 #include "ll-merge.h"
+#include "match-trees.h"
 #include "mem-pool.h"
 #include "object-name.h"
 #include "object-store.h"

merge-recursive.c

@@ -22,6 +22,7 @@
 #include "hex.h"
 #include "ll-merge.h"
 #include "lockfile.h"
+#include "match-trees.h"
 #include "object-file.h"
 #include "object-name.h"
 #include "object-store.h"

t/helper/test-match-trees.c

@@ -1,6 +1,7 @@
 #include "test-tool.h"
 #include "cache.h"
 #include "hex.h"
+#include "match-trees.h"
 #include "object-name.h"
 #include "setup.h"
 #include "tree.h"