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| author | Nguyễn Thái Ngọc Duy <pclouds@gmail.com> | 2012-12-16 04:15:28 (GMT) |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2012-12-16 07:04:22 (GMT) |
| commit | eec3e7e406867487036cf447fe8fa18740824b2f (patch) | |
| tree | 1fab13da5e36b82b19f5da59b9339157c5847bcd /cache-tree.c | |
| parent | 3cf773e4264ecc6e9f603a24aeb72cc68b372f96 (diff) | |
| download | git-eec3e7e406867487036cf447fe8fa18740824b2f.zip git-eec3e7e406867487036cf447fe8fa18740824b2f.tar.gz git-eec3e7e406867487036cf447fe8fa18740824b2f.tar.bz2 | |
cache-tree: invalidate i-t-a paths after generating trees
Intent-to-add entries used to forbid writing trees so it was not a
problem. After commit 3f6d56d (commit: ignore intent-to-add entries
instead of refusing - 2012-02-07), we can generate trees from an index
with i-t-a entries.
However, the commit forgets to invalidate all paths leading to i-t-a
entries. With fully valid cache-tree (e.g. after commit or
write-tree), diff operations may prefer cache-tree to index and not
see i-t-a entries in the index, because cache-tree does not have them.
Reported-by: Jonathon Mah <me@JonathonMah.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'cache-tree.c')
| -rw-r--r-- | cache-tree.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/cache-tree.c b/cache-tree.c index 2c10b2e..37e4d00 100644 --- a/cache-tree.c +++ b/cache-tree.c @@ -244,6 +244,7 @@ static int update_one(struct cache_tree *it, struct strbuf buffer; int missing_ok = flags & WRITE_TREE_MISSING_OK; int dryrun = flags & WRITE_TREE_DRY_RUN; + int to_invalidate = 0; int i; *skip_count = 0; @@ -333,6 +334,8 @@ static int update_one(struct cache_tree *it, i += sub->count; sha1 = sub->cache_tree->sha1; mode = S_IFDIR; + if (sub->cache_tree->entry_count < 0) + to_invalidate = 1; } else { sha1 = ce->sha1; @@ -356,8 +359,15 @@ static int update_one(struct cache_tree *it, continue; } - if (ce->ce_flags & CE_INTENT_TO_ADD) + /* + * CE_INTENT_TO_ADD entries exist on on-disk index but + * they are not part of generated trees. Invalidate up + * to root to force cache-tree users to read elsewhere. + */ + if (ce->ce_flags & CE_INTENT_TO_ADD) { + to_invalidate = 1; continue; + } strbuf_grow(&buffer, entlen + 100); strbuf_addf(&buffer, "%o %.*s%c", mode, entlen, path + baselen, '\0'); @@ -377,7 +387,7 @@ static int update_one(struct cache_tree *it, } strbuf_release(&buffer); - it->entry_count = i - *skip_count; + it->entry_count = to_invalidate ? -1 : i - *skip_count; #if DEBUG fprintf(stderr, "cache-tree update-one (%d ent, %d subtree) %s\n", it->entry_count, it->subtree_nr, |