reftable: add blocksource, an abstraction for random access reads

[thirdparty/git.git] / commit.h

diff --git a/commit.h b/commit.h
index e65d9b3e7525ae1628c9ddda96874ca9b32e5d90..df42eb434f314bd9cf89e920efdb0fc29a86c4c5 100644 (file)
--- a/commit.h
+++ b/commit.h
@@ -11,9 +11,10 @@
 #include "commit-slab.h"
 
 #define COMMIT_NOT_FROM_GRAPH 0xFFFFFFFF
-#define GENERATION_NUMBER_INFINITY 0xFFFFFFFF
-#define GENERATION_NUMBER_MAX 0x3FFFFFFF
+#define GENERATION_NUMBER_INFINITY ((1ULL << 63) - 1)
+#define GENERATION_NUMBER_V1_MAX 0x3FFFFFFF
 #define GENERATION_NUMBER_ZERO 0
+#define GENERATION_NUMBER_V2_OFFSET_MAX ((1ULL << 31) - 1)
 
 struct commit_list {
        struct commit *item;
@@ -88,9 +89,10 @@ static inline int repo_parse_commit(struct repository *r, struct commit *item)
        return repo_parse_commit_gently(r, item, 0);
 }
 
-static inline int parse_commit_no_graph(struct commit *commit)
+static inline int repo_parse_commit_no_graph(struct repository *r,
+                                            struct commit *commit)
 {
-       return repo_parse_commit_internal(the_repository, commit, 0, 0);
+       return repo_parse_commit_internal(r, commit, 0, 0);
 }
 
 #ifndef NO_THE_REPOSITORY_COMPATIBILITY_MACROS
@@ -242,7 +244,7 @@ typedef int (*each_commit_graft_fn)(const struct commit_graft *, void *);
 
 struct commit_graft *read_graft_line(struct strbuf *line);
 /* commit_graft_pos returns an index into r->parsed_objects->grafts. */
-int commit_graft_pos(struct repository *r, const unsigned char *sha1);
+int commit_graft_pos(struct repository *r, const struct object_id *oid);
 int register_commit_graft(struct repository *r, struct commit_graft *, int);
 void prepare_commit_graft(struct repository *r);
 struct commit_graft *lookup_commit_graft(struct repository *r, const struct object_id *oid);
@@ -320,7 +322,8 @@ void set_merge_remote_desc(struct commit *commit,
 struct commit *get_merge_parent(const char *name);
 
 int parse_signed_commit(const struct commit *commit,
-                       struct strbuf *message, struct strbuf *signature);
+                       struct strbuf *message, struct strbuf *signature,
+                       const struct git_hash_algo *algop);
 int remove_signature(struct strbuf *buf);
 
 /*
@@ -362,4 +365,13 @@ int compare_commits_by_gen_then_commit_date(const void *a_, const void *b_, void
 LAST_ARG_MUST_BE_NULL
 int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
 
+/* Sign a commit or tag buffer, storing the result in a header. */
+int sign_with_header(struct strbuf *buf, const char *keyid);
+/* Parse the signature out of a header. */
+int parse_buffer_signed_by_header(const char *buffer,
+                                 unsigned long size,
+                                 struct strbuf *payload,
+                                 struct strbuf *signature,
+                                 const struct git_hash_algo *algop);
+
 #endif /* COMMIT_H */