1 files changed, 71 insertions, 0 deletions
diff --git a/third_party/git/refspec.h b/third_party/git/refspec.h
new file mode 100644
index 000000000000..3f2bd4aaa5e0
--- /dev/null
+++ b/third_party/git/refspec.h
@@ -0,0 +1,71 @@
+#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 }
+
+/**
+ * A struct refspec holds the parsed interpretation of a refspec.  If it will
+ * force updates (starts with a '+'), force is true.  If it is a pattern
+ * (sides end with '*') pattern is true.  src and dest are the two sides
+ * (including '*' characters if present); if there is only one side, it is src,
+ * and dst is NULL; if sides exist but are empty (i.e., the refspec either
+ * starts or ends with ':'), the corresponding side is "".
+ *
+ * An array of strings can be parsed into an array of struct refspecs using
+ * parse_fetch_refspec() or parse_push_refspec().
+ *
+ * remote_find_tracking(), given a remote and a struct refspec with either src
+ * or dst filled out, will fill out the other such that the result is in the
+ * "fetch" specification for the remote (note that this evaluates patterns and
+ * returns a single result).
+ */
+struct refspec {
+	struct refspec_item *items;
+	int alloc;
+	int nr;
+
+	const char **raw;
+	int raw_alloc;
+	int raw_nr;
+
+	int fetch;
+};
+
+int refspec_item_init(struct refspec_item *item, const char *refspec,
+		      int fetch);
+void refspec_item_init_or_die(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;
+/*
+ * Determine what <prefix> values to pass to the peer in ref-prefix lines
+ * (see Documentation/technical/protocol-v2.txt).
+ */
+void refspec_ref_prefixes(const struct refspec *rs,
+			  struct argv_array *ref_prefixes);
+
+#endif /* REFSPEC_H */