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| author |  Paul Tan <pyokagan@gmail.com> | 2015-08-04 21:51:40 +0800 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2015-08-04 22:02:11 -0700 |
| commit | d23a5117f821b91e1d72745238a4c085a089864e (patch) | |
| tree | a5b8200766404d04913f1bce008b80174dbf4d5b /cache-tree.c | |
| parent | builtin-am: implement -s/--signoff (diff) | |
| download | tgif-d23a5117f821b91e1d72745238a4c085a089864e.tar.xz | |
cache-tree: introduce write_index_as_tree()
A caller may wish to write a temporary index as a tree. However,
write_cache_as_tree() assumes that the index was read from, and will
write to, the default index file path. Introduce write_index_as_tree()
which removes this limitation by allowing the caller to specify its own
index_state and index file path.
Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'cache-tree.c')
| -rw-r--r-- | cache-tree.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/cache-tree.c b/cache-tree.c index 32772b9564..feace8bd90 100644 --- a/cache-tree.c +++ b/cache-tree.c @@ -592,7 +592,7 @@ static struct cache_tree *cache_tree_find(struct cache_tree *it, const char *pat return it; } -int write_cache_as_tree(unsigned char *sha1, int flags, const char *prefix) +int write_index_as_tree(unsigned char *sha1, struct index_state *index_state, const char *index_path, int flags, const char *prefix) { int entries, was_valid, newfd; struct lock_file *lock_file; @@ -603,23 +603,23 @@ int write_cache_as_tree(unsigned char *sha1, int flags, const char *prefix) */ lock_file = xcalloc(1, sizeof(struct lock_file)); - newfd = hold_locked_index(lock_file, 1); + newfd = hold_lock_file_for_update(lock_file, index_path, LOCK_DIE_ON_ERROR); - entries = read_cache(); + entries = read_index_from(index_state, index_path); if (entries < 0) return WRITE_TREE_UNREADABLE_INDEX; if (flags & WRITE_TREE_IGNORE_CACHE_TREE) - cache_tree_free(&(active_cache_tree)); + cache_tree_free(&index_state->cache_tree); - if (!active_cache_tree) - active_cache_tree = cache_tree(); + if (!index_state->cache_tree) + index_state->cache_tree = cache_tree(); - was_valid = cache_tree_fully_valid(active_cache_tree); + was_valid = cache_tree_fully_valid(index_state->cache_tree); if (!was_valid) { - if (cache_tree_update(&the_index, flags) < 0) + if (cache_tree_update(index_state, flags) < 0) return WRITE_TREE_UNMERGED_INDEX; if (0 <= newfd) { - if (!write_locked_index(&the_index, lock_file, COMMIT_LOCK)) + if (!write_locked_index(index_state, lock_file, COMMIT_LOCK)) newfd = -1; } /* Not being able to write is fine -- we are only interested @@ -631,14 +631,14 @@ int write_cache_as_tree(unsigned char *sha1, int flags, const char *prefix) } if (prefix) { - struct cache_tree *subtree = - cache_tree_find(active_cache_tree, prefix); + struct cache_tree *subtree; + subtree = cache_tree_find(index_state->cache_tree, prefix); if (!subtree) return WRITE_TREE_PREFIX_ERROR; hashcpy(sha1, subtree->sha1); } else - hashcpy(sha1, active_cache_tree->sha1); + hashcpy(sha1, index_state->cache_tree->sha1); if (0 <= newfd) rollback_lock_file(lock_file); @@ -646,6 +646,11 @@ int write_cache_as_tree(unsigned char *sha1, int flags, const char *prefix) return 0; } +int write_cache_as_tree(unsigned char *sha1, int flags, const char *prefix) +{ + return write_index_as_tree(sha1, &the_index, get_index_file(), flags, prefix); +} + static void prime_cache_tree_rec(struct cache_tree *it, struct tree *tree) { struct tree_desc desc; |