Merge branch 'bw/ref-prefix-for-configured-refspec'

"git fetch $there $refspec" that talks over protocol v2 can take
advantage of server-side ref filtering; the code has been extended
so that this mechanism triggers also when fetching with configured
refspec.

* bw/ref-prefix-for-configured-refspec: (38 commits)
  fetch: generate ref-prefixes when using a configured refspec
  refspec: consolidate ref-prefix generation logic
  submodule: convert push_unpushed_submodules to take a struct refspec
  remote: convert check_push_refs to take a struct refspec
  remote: convert match_push_refs to take a struct refspec
  http-push: store refspecs in a struct refspec
  transport: remove transport_verify_remote_names
  send-pack: store refspecs in a struct refspec
  transport: convert transport_push to take a struct refspec
  push: convert to use struct refspec
  push: check for errors earlier
  remote: convert match_explicit_refs to take a struct refspec
  remote: convert get_ref_match to take a struct refspec
  remote: convert query_refspecs to take a struct refspec
  remote: convert apply_refspecs to take a struct refspec
  remote: convert get_stale_heads to take a struct refspec
  fetch: convert prune_refs to take a struct refspec
  fetch: convert get_ref_map to take a struct refspec
  fetch: convert do_fetch to take a struct refspec
  refspec: remove the deprecated functions
  ...

1 files changed, 48 insertions, 0 deletions

diff --git a/refspec.h b/refspec.h
new file mode 100644
index 0000000000..01b700e094
--- /dev/null
+++ b/refspec.h
@@ -0,0 +1,48 @@
+#ifndef REFSPEC_H
+#define REFSPEC_H
+
+#define TAG_REFSPEC "refs/tags/*:refs/tags/*"
+extern const struct refspec_item *tag_refspec;
+
+struct refspec_item {
+	unsigned force : 1;
+	unsigned pattern : 1;
+	unsigned matching : 1;
+	unsigned exact_sha1 : 1;
+
+	char *src;
+	char *dst;
+};
+
+#define REFSPEC_FETCH 1
+#define REFSPEC_PUSH 0
+
+#define REFSPEC_INIT_FETCH { .fetch = REFSPEC_FETCH }
+#define REFSPEC_INIT_PUSH { .fetch = REFSPEC_PUSH }
+
+struct refspec {
+	struct refspec_item *items;
+	int alloc;
+	int nr;
+
+	const char **raw;
+	int raw_alloc;
+	int raw_nr;
+
+	int fetch;
+};
+
+void refspec_item_init(struct refspec_item *item, const char *refspec, int fetch);
+void refspec_item_clear(struct refspec_item *item);
+void refspec_init(struct refspec *rs, int fetch);
+void refspec_append(struct refspec *rs, const char *refspec);
+void refspec_appendn(struct refspec *rs, const char **refspecs, int nr);
+void refspec_clear(struct refspec *rs);
+
+int valid_fetch_refspec(const char *refspec);
+
+struct argv_array;
+void refspec_ref_prefixes(const struct refspec *rs,
+			  struct argv_array *ref_prefixes);
+
+#endif /* REFSPEC_H */