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authorJunio C Hamano <gitster@pobox.com>2014-07-16 11:25:40 -0700
committerJunio C Hamano <gitster@pobox.com>2014-07-16 11:25:40 -0700
commit788cef81d40070d5755490441abad1a27bc120b7 (patch)
treeebc44e5c83def9855aac4559e87f201882d8f955 /sequencer.c
parente0a064a10749a8039f28e9bd3de0ffb5cf99e678 (diff)
parent3e52f70b1505956bf91cb7b107e526d1c67da0a6 (diff)
downloadgit-788cef81d40070d5755490441abad1a27bc120b7.tar.gz
Merge branch 'nd/split-index'
An experiment to use two files (the base file and incremental changes relative to it) to represent the index to reduce I/O cost of rewriting a large index when only small part of the working tree changes. * nd/split-index: (32 commits) t1700: new tests for split-index mode t2104: make sure split index mode is off for the version test read-cache: force split index mode with GIT_TEST_SPLIT_INDEX read-tree: note about dropping split-index mode or index version read-tree: force split-index mode off on --index-output rev-parse: add --shared-index-path to get shared index path update-index --split-index: do not split if $GIT_DIR is read only update-index: new options to enable/disable split index mode split-index: strip pathname of on-disk replaced entries split-index: do not invalidate cache-tree at read time split-index: the reading part split-index: the writing part read-cache: mark updated entries for split index read-cache: save deleted entries in split index read-cache: mark new entries for split index read-cache: split-index mode read-cache: save index SHA-1 after reading entry.c: update cache_changed if refresh_cache is set in checkout_entry() cache-tree: mark istate->cache_changed on prime_cache_tree() cache-tree: mark istate->cache_changed on cache tree update ...
Diffstat (limited to 'sequencer.c')
-rw-r--r--sequencer.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/sequencer.c b/sequencer.c
index cdd30c0737..3c060e0547 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -263,11 +263,11 @@ static int do_recursive_merge(struct commit *base, struct commit *next,
{
struct merge_options o;
struct tree *result, *next_tree, *base_tree, *head_tree;
- int clean, index_fd;
+ int clean;
const char **xopt;
static struct lock_file index_lock;
- index_fd = hold_locked_index(&index_lock, 1);
+ hold_locked_index(&index_lock, 1);
read_cache();
@@ -288,8 +288,7 @@ static int do_recursive_merge(struct commit *base, struct commit *next,
next_tree, base_tree, &result);
if (active_cache_changed &&
- (write_cache(index_fd, active_cache, active_nr) ||
- commit_locked_index(&index_lock)))
+ write_locked_index(&the_index, &index_lock, COMMIT_LOCK))
/* TRANSLATORS: %s will be "revert" or "cherry-pick" */
die(_("%s: Unable to write new index file"), action_name(opts));
rollback_lock_file(&index_lock);
@@ -341,9 +340,7 @@ static int is_index_unchanged(void)
active_cache_tree = cache_tree();
if (!cache_tree_fully_valid(active_cache_tree))
- if (cache_tree_update(active_cache_tree,
- (const struct cache_entry * const *)active_cache,
- active_nr, 0))
+ if (cache_tree_update(&the_index, 0))
return error(_("Unable to update cache tree\n"));
return !hashcmp(active_cache_tree->sha1, head_commit->tree->object.sha1);
@@ -643,9 +640,8 @@ static void read_and_refresh_cache(struct replay_opts *opts)
if (read_index_preload(&the_index, NULL) < 0)
die(_("git %s: failed to read the index"), action_name(opts));
refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL);
- if (the_index.cache_changed) {
- if (write_index(&the_index, index_fd) ||
- commit_locked_index(&index_lock))
+ if (the_index.cache_changed && index_fd >= 0) {
+ if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK))
die(_("git %s: failed to refresh the index"), action_name(opts));
}
rollback_lock_file(&index_lock);