path: root/rev-cache.h
diff options
authorJunio C Hamano <>2005-07-24 00:54:41 (GMT)
committerLinus Torvalds <>2005-07-24 01:28:19 (GMT)
commit8f3f9b09dc5ac8a946422422c3c70a4a4c284be3 (patch)
treea237b1468702dce4d5cd41258d4b8a8ea0976896 /rev-cache.h
parent0fec0822721cc18d6a62ab78da1ebf87914d4921 (diff)
[PATCH] Add update-server-info.
The git-update-server-info command prepares informational files to help clients discover the contents of a repository, and pull from it via a dumb transport protocols. Currently, the following files are produced. - The $repo/info/refs file lists the name of heads and tags available in the $repo/refs/ directory, along with their SHA1. This can be used by git-ls-remote command running on the client side. - The $repo/info/rev-cache file describes the commit ancestry reachable from references in the $repo/refs/ directory. This file is in an append-only binary format to make the server side friendly to rsync mirroring scheme, and can be read by git-show-rev-cache command. - The $repo/objects/info/pack file lists the name of the packs available, the interdependencies among them, and the head commits and tags contained in them. Along with the other two files, this is designed to help clients to make smart pull decisions. The git-receive-pack command is changed to invoke it at the end, so just after a push to a public repository finishes via "git push", the server info is automatically updated. In addition, building of the rev-cache file can be done by a standalone git-build-rev-cache command separately. Signed-off-by: Junio C Hamano <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'rev-cache.h')
1 files changed, 29 insertions, 0 deletions
diff --git a/rev-cache.h b/rev-cache.h
new file mode 100644
index 0000000..b238ac6
--- /dev/null
+++ b/rev-cache.h
@@ -0,0 +1,29 @@
+#ifndef REV_CACHE_H
+#define REV_CACHE_H
+extern struct rev_cache {
+ struct rev_cache *head_list;
+ struct rev_list_elem *children;
+ struct rev_list_elem *parents;
+ struct rev_list_elem *parents_tail;
+ unsigned short num_parents;
+ unsigned short num_children;
+ unsigned int written : 1;
+ unsigned int parsed : 1;
+ unsigned int work : 30;
+ void *work_ptr;
+ unsigned char sha1[20];
+} **rev_cache;
+extern int nr_revs, alloc_revs;
+struct rev_list_elem {
+ struct rev_list_elem *next;
+ struct rev_cache *ri;
+extern int find_rev_cache(const unsigned char *);
+extern int read_rev_cache(const char *, FILE *, int);
+extern int record_rev_cache(const unsigned char *, FILE *);
+extern void write_rev_cache(const char *new, const char *old);