implement fetching of moved submodules

diff --git a/refs.h b/refs.h
index 4be14c4b3cc65de453c4eae438c245b0c91355e5..a02b628c8fe81b648f13c66b7e618d8660151e77 100644 (file)
--- a/refs.h
+++ b/refs.h
@@ -10,10 +10,11 @@ struct worktree;
 /*
  * Resolve a reference, recursively following symbolic refererences.
  *
- * Store the referred-to object's name in sha1 and return the name of
- * the non-symbolic reference that ultimately pointed at it.  The
- * return value, if not NULL, is a pointer into either a static buffer
- * or the input ref.
+ * Return the name of the non-symbolic reference that ultimately pointed
+ * at the resolved object name.  The return value, if not NULL, is a
+ * pointer into either a static buffer or the input ref.
+ *
+ * If sha1 is non-NULL, store the referred-to object's name in it.
  *
  * If the reference cannot be resolved to an object, the behavior
  * depends on the RESOLVE_REF_READING flag:
@@ -275,6 +276,8 @@ typedef int each_ref_fn(const char *refname,
  * modifies the reference also returns a nonzero value to immediately
  * stop the iteration. Returned references are sorted.
  */
+int refs_head_ref(struct ref_store *refs,
+                 each_ref_fn fn, void *cb_data);
 int refs_for_each_ref(struct ref_store *refs,
                      each_ref_fn fn, void *cb_data);
 int refs_for_each_ref_in(struct ref_store *refs, const char *prefix,
@@ -289,6 +292,9 @@ int refs_for_each_remote_ref(struct ref_store *refs,
 int head_ref(each_ref_fn fn, void *cb_data);
 int for_each_ref(each_ref_fn fn, void *cb_data);
 int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data);
+int refs_for_each_fullref_in(struct ref_store *refs, const char *prefix,
+                            each_ref_fn fn, void *cb_data,
+                            unsigned int broken);
 int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data,
                        unsigned int broken);
 int for_each_tag_ref(each_ref_fn fn, void *cb_data);
@@ -299,18 +305,6 @@ int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data);
 int for_each_glob_ref_in(each_ref_fn fn, const char *pattern,
                         const char *prefix, void *cb_data);
 
-int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data);
-int for_each_ref_submodule(const char *submodule,
-                          each_ref_fn fn, void *cb_data);
-int for_each_ref_in_submodule(const char *submodule, const char *prefix,
-               each_ref_fn fn, void *cb_data);
-int for_each_tag_ref_submodule(const char *submodule,
-                              each_ref_fn fn, void *cb_data);
-int for_each_branch_ref_submodule(const char *submodule,
-                                 each_ref_fn fn, void *cb_data);
-int for_each_remote_ref_submodule(const char *submodule,
-                                 each_ref_fn fn, void *cb_data);
-
 int head_ref_namespaced(each_ref_fn fn, void *cb_data);
 int for_each_namespaced_ref(each_ref_fn fn, void *cb_data);
 
@@ -351,6 +345,14 @@ int refs_pack_refs(struct ref_store *refs, unsigned int flags);
 #define REF_NODEREF    0x01
 #define REF_FORCE_CREATE_REFLOG 0x40
 
+/*
+ * Flags that can be passed in to ref_transaction_update
+ */
+#define REF_TRANSACTION_UPDATE_ALLOWED_FLAGS \
+       REF_ISPRUNING |                      \
+       REF_FORCE_CREATE_REFLOG |            \
+       REF_NODEREF
+
 /*
  * Setup reflog before using. Fill in err and return -1 on failure.
  */
@@ -440,7 +442,14 @@ char *shorten_unambiguous_ref(const char *refname, int strict);
 /** rename ref, return 0 on success **/
 int refs_rename_ref(struct ref_store *refs, const char *oldref,
                    const char *newref, const char *logmsg);
-int rename_ref(const char *oldref, const char *newref, const char *logmsg);
+int rename_ref(const char *oldref, const char *newref,
+                       const char *logmsg);
+
+/** copy ref, return 0 on success **/
+int refs_copy_existing_ref(struct ref_store *refs, const char *oldref,
+                   const char *newref, const char *logmsg);
+int copy_existing_ref(const char *oldref, const char *newref,
+                       const char *logmsg);
 
 int refs_create_symref(struct ref_store *refs, const char *refname,
                       const char *target, const char *logmsg);
@@ -571,7 +580,7 @@ int ref_transaction_verify(struct ref_transaction *transaction,
 #define TRANSACTION_GENERIC_ERROR -2
 
 /*
- * Perform the preparatory stages of commiting `transaction`. Acquire
+ * Perform the preparatory stages of committing `transaction`. Acquire
  * any needed locks, check preconditions, etc.; basically, do as much
  * as possible to ensure that the transaction will be able to go
  * through, stopping just short of making any irrevocable or
@@ -583,7 +592,7 @@ int ref_transaction_verify(struct ref_transaction *transaction,
  * On failure, abort the transaction, write an error message to `err`,
  * and return one of the `TRANSACTION_*` constants.
  *
- * Callers who don't need such fine-grained control over commiting
+ * Callers who don't need such fine-grained control over committing
  * reference transactions should just call `ref_transaction_commit()`.
  */
 int ref_transaction_prepare(struct ref_transaction *transaction,