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2015-09-25test-dump-cache-tree: avoid overflow of cache-tree nameLibravatar Jeff King1-1/+1
When dumping a cache-tree, we sprintf sub-tree names directly into a fixed-size buffer, which can overflow. We can trivially fix this by converting to xsnprintf to at least notice and die. This probably should handle arbitrary-sized names, but there's not much point. It's used only by the test scripts, so the trivial fix is enough. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-11Merge branch 'dt/cache-tree-repair'Libravatar Junio C Hamano1-2/+2
Add a few more places in "commit" and "checkout" that make sure that the cache-tree is fully populated in the index. * dt/cache-tree-repair: cache-tree: do not try to use an invalidated subtree info to build a tree cache-tree: Write updated cache-tree after commit cache-tree: subdirectory tests test-dump-cache-tree: invalid trees are not errors cache-tree: create/update cache-tree on checkout
2014-07-08test-dump-cache-tree: invalid trees are not errorsLibravatar David Turner1-2/+2
Do not treat known-invalid trees as errors even when their subtree_nr is incorrect. Because git already knows that these trees are invalid, an incorrect subtree_nr will not cause problems. Add a couple of comments. Signed-off-by: David Turner <dturner@twitter.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-13cache-tree: mark istate->cache_changed on cache tree updateLibravatar Nguyễn Thái Ngọc Duy1-3/+4
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-09Convert "struct cache_entry *" to "const ..." wherever possibleLibravatar Nguyễn Thái Ngọc Duy1-1/+3
I attempted to make index_state->cache[] a "const struct cache_entry **" to find out how existing entries in index are modified and where. The question I have is what do we do if we really need to keep track of on-disk changes in the index. The result is - diff-lib.c: setting CE_UPTODATE - name-hash.c: setting CE_HASHED - preload-index.c, read-cache.c, unpack-trees.c and builtin/update-index: obvious - entry.c: write_entry() may refresh the checked out entry via fill_stat_cache_info(). This causes "non-const struct cache_entry *" in builtin/apply.c, builtin/checkout-index.c and builtin/checkout.c - builtin/ls-files.c: --with-tree changes stagemask and may set CE_UPDATE Of these, write_entry() and its call sites are probably most interesting because it modifies on-disk info. But this is stat info and can be retrieved via refresh, at least for porcelain commands. Other just uses ce_flags for local purposes. So, keeping track of "dirty" entries is just a matter of setting a flag in index modification functions exposed by read-cache.c. Except unpack-trees, the rest of the code base does not do anything funny behind read-cache's back. The actual patch is less valueable than the summary above. But if anyone wants to re-identify the above sites. Applying this patch, then this: diff --git a/cache.h b/cache.h index 430d021..1692891 100644 --- a/cache.h +++ b/cache.h @@ -267,7 +267,7 @@ static inline unsigned int canon_mode(unsigned int mode) #define cache_entry_size(len) (offsetof(struct cache_entry,name) + (len) + 1) struct index_state { - struct cache_entry **cache; + const struct cache_entry **cache; unsigned int version; unsigned int cache_nr, cache_alloc, cache_changed; struct string_list *resolve_undo; will help quickly identify them without bogus warnings. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-07cache-tree: update API to take abitrary flagsLibravatar Nguyễn Thái Ngọc Duy1-1/+1
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-06Refactor cache_tree_update idiom from commitLibravatar Thomas Rast1-1/+1
We'll need to safely create or update the cache-tree data of the_index from other places. While at it, give it an argument that lets us silence the messages produced by unmerged entries (which prevent it from working). Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-03add test-dump-cache-tree in MakefileLibravatar Guanqun Lu1-0/+64
5c5ba73 (Makefile: Use generic rule to build test programs, 2007-05-31) tried to use generic rule to build test programs, but it misses the file 'dump-cache-tree.c', since its name is not prefixed by 'test-'. This commit solves this little problem by renaming this file instead of carrying out an explicit rule in Makefile. Signed-off-by: Guanqun Lu <guanqun.lu@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>