hash: add an SHA-256 implementation using OpenSSL

diff --git a/commit-graph.h b/commit-graph.h
index 260a468e73acd89b2a7706c859e8c25b264f3365..b05047676514e4d031ac90de50510eb33a4b6db6 100644 (file)
--- a/commit-graph.h
+++ b/commit-graph.h
@@ -2,6 +2,13 @@
 #define COMMIT_GRAPH_H
 
 #include "git-compat-util.h"
+#include "repository.h"
+#include "string-list.h"
+#include "cache.h"
+
+#define GIT_TEST_COMMIT_GRAPH "GIT_TEST_COMMIT_GRAPH"
+
+struct commit;
 
 char *get_commit_graph_filename(const char *obj_dir);
 
@@ -15,9 +22,18 @@ char *get_commit_graph_filename(const char *obj_dir);
  *
  * See parse_commit_buffer() for the fallback after this call.
  */
-int parse_commit_in_graph(struct commit *item);
+int parse_commit_in_graph(struct repository *r, struct commit *item);
+
+/*
+ * It is possible that we loaded commit contents from the commit buffer,
+ * but we also want to ensure the commit-graph content is correctly
+ * checked and filled. Fill the graph_pos and generation members of
+ * the given commit.
+ */
+void load_commit_graph_info(struct repository *r, struct commit *item);
 
-struct tree *get_commit_tree_in_graph(const struct commit *c);
+struct tree *get_commit_tree_in_graph(struct repository *r,
+                                     const struct commit *c);
 
 struct commit_graph {
        int graph_fd;
@@ -38,11 +54,20 @@ struct commit_graph {
 
 struct commit_graph *load_commit_graph_one(const char *graph_file);
 
+/*
+ * Return 1 if and only if the repository has a commit-graph
+ * file and generation numbers are computed in that file.
+ */
+int generation_numbers_enabled(struct repository *r);
+
+void write_commit_graph_reachable(const char *obj_dir, int append);
 void write_commit_graph(const char *obj_dir,
-                       const char **pack_indexes,
-                       int nr_packs,
-                       const char **commit_hex,
-                       int nr_commits,
+                       struct string_list *pack_indexes,
+                       struct string_list *commit_hex,
                        int append);
 
+int verify_commit_graph(struct repository *r, struct commit_graph *g);
+
+void free_commit_graph(struct commit_graph *);
+
 #endif