diff options
| -rw-r--r-- | .gitignore | 1 | ||||
| -rw-r--r-- | Makefile | 1 | ||||
| -rw-r--r-- | builtin/commit.c | 7 | ||||
| -rw-r--r-- | builtin/reset.c | 7 | ||||
| -rw-r--r-- | cache-tree.c | 19 | ||||
| -rw-r--r-- | cache-tree.h | 4 | ||||
| -rw-r--r-- | merge-recursive.c | 2 | ||||
| -rwxr-xr-x | t/t0090-cache-tree.sh | 93 | ||||
| -rw-r--r-- | test-dump-cache-tree.c | 2 | ||||
| -rw-r--r-- | test-scrap-cache-tree.c | 17 |
10 files changed, 142 insertions, 11 deletions
diff --git a/.gitignore b/.gitignore index 8572c8c0b0..122336c504 100644 --- a/.gitignore +++ b/.gitignore @@ -171,6 +171,7 @@ /test-date /test-delta /test-dump-cache-tree +/test-scrap-cache-tree /test-genrandom /test-index-version /test-line-buffer @@ -435,6 +435,7 @@ TEST_PROGRAMS_NEED_X += test-ctype TEST_PROGRAMS_NEED_X += test-date TEST_PROGRAMS_NEED_X += test-delta TEST_PROGRAMS_NEED_X += test-dump-cache-tree +TEST_PROGRAMS_NEED_X += test-scrap-cache-tree TEST_PROGRAMS_NEED_X += test-genrandom TEST_PROGRAMS_NEED_X += test-index-version TEST_PROGRAMS_NEED_X += test-line-buffer diff --git a/builtin/commit.c b/builtin/commit.c index d8d6dd5eaa..d749cb112a 100644 --- a/builtin/commit.c +++ b/builtin/commit.c @@ -394,6 +394,7 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, fd = hold_locked_index(&index_lock, 1); add_files_to_cache(also ? prefix : NULL, pathspec, 0); refresh_cache_or_die(refresh_flags); + update_main_cache_tree(1); if (write_cache(fd, active_cache, active_nr) || close_lock_file(&index_lock)) die(_("unable to write new_index file")); @@ -414,6 +415,7 @@ static char *prepare_index(int argc, const char **argv, const char *prefix, fd = hold_locked_index(&index_lock, 1); refresh_cache_or_die(refresh_flags); if (active_cache_changed) { + update_main_cache_tree(1); if (write_cache(fd, active_cache, active_nr) || commit_locked_index(&index_lock)) die(_("unable to write new_index file")); @@ -862,10 +864,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix, */ discard_cache(); read_cache_from(index_file); - if (!active_cache_tree) - active_cache_tree = cache_tree(); - if (cache_tree_update(active_cache_tree, - active_cache, active_nr, 0, 0) < 0) { + if (update_main_cache_tree(0)) { error(_("Error building trees")); return 0; } diff --git a/builtin/reset.c b/builtin/reset.c index 811e8e252c..8c2c1d52a2 100644 --- a/builtin/reset.c +++ b/builtin/reset.c @@ -43,6 +43,7 @@ static int reset_index_file(const unsigned char *sha1, int reset_type, int quiet int nr = 1; int newfd; struct tree_desc desc[2]; + struct tree *tree; struct unpack_trees_options opts; struct lock_file *lock = xcalloc(1, sizeof(struct lock_file)); @@ -84,6 +85,12 @@ static int reset_index_file(const unsigned char *sha1, int reset_type, int quiet return error(_("Failed to find tree of %s."), sha1_to_hex(sha1)); if (unpack_trees(nr, desc, &opts)) return -1; + + if (reset_type == MIXED || reset_type == HARD) { + tree = parse_tree_indirect(sha1); + prime_cache_tree(&active_cache_tree, tree); + } + if (write_cache(newfd, active_cache, active_nr) || commit_locked_index(lock)) return error(_("Could not write new index file.")); diff --git a/cache-tree.c b/cache-tree.c index f755590da8..8de39590d5 100644 --- a/cache-tree.c +++ b/cache-tree.c @@ -150,7 +150,7 @@ void cache_tree_invalidate_path(struct cache_tree *it, const char *path) } static int verify_cache(struct cache_entry **cache, - int entries) + int entries, int silent) { int i, funny; @@ -159,6 +159,8 @@ static int verify_cache(struct cache_entry **cache, for (i = 0; i < entries; i++) { struct cache_entry *ce = cache[i]; if (ce_stage(ce) || (ce->ce_flags & CE_INTENT_TO_ADD)) { + if (silent) + return -1; if (10 < ++funny) { fprintf(stderr, "...\n"); break; @@ -370,10 +372,11 @@ int cache_tree_update(struct cache_tree *it, struct cache_entry **cache, int entries, int missing_ok, - int dryrun) + int dryrun, + int silent) { int i; - i = verify_cache(cache, entries); + i = verify_cache(cache, entries, silent); if (i) return i; i = update_one(it, cache, entries, "", 0, missing_ok, dryrun); @@ -573,7 +576,7 @@ int write_cache_as_tree(unsigned char *sha1, int flags, const char *prefix) if (cache_tree_update(active_cache_tree, active_cache, active_nr, - missing_ok, 0) < 0) + missing_ok, 0, 0) < 0) return WRITE_TREE_UNMERGED_INDEX; if (0 <= newfd) { if (!write_cache(newfd, active_cache, active_nr) && @@ -668,3 +671,11 @@ int cache_tree_matches_traversal(struct cache_tree *root, return it->entry_count; return 0; } + +int update_main_cache_tree (int silent) +{ + if (!the_index.cache_tree) + the_index.cache_tree = cache_tree(); + return cache_tree_update(the_index.cache_tree, + the_index.cache, the_index.cache_nr, 0, 0, silent); +} diff --git a/cache-tree.h b/cache-tree.h index 3df641f593..0ec0b2a159 100644 --- a/cache-tree.h +++ b/cache-tree.h @@ -29,7 +29,9 @@ void cache_tree_write(struct strbuf *, struct cache_tree *root); struct cache_tree *cache_tree_read(const char *buffer, unsigned long size); int cache_tree_fully_valid(struct cache_tree *); -int cache_tree_update(struct cache_tree *, struct cache_entry **, int, int, int); +int cache_tree_update(struct cache_tree *, struct cache_entry **, int, int, int, int); + +int update_main_cache_tree(int); /* bitmasks to write_cache_as_tree flags */ #define WRITE_TREE_MISSING_OK 1 diff --git a/merge-recursive.c b/merge-recursive.c index cc664c39b6..e22a5195f6 100644 --- a/merge-recursive.c +++ b/merge-recursive.c @@ -265,7 +265,7 @@ struct tree *write_tree_from_memory(struct merge_options *o) if (!cache_tree_fully_valid(active_cache_tree) && cache_tree_update(active_cache_tree, - active_cache, active_nr, 0, 0) < 0) + active_cache, active_nr, 0, 0, 0) < 0) die("error building trees"); result = lookup_tree(active_cache_tree->sha1); diff --git a/t/t0090-cache-tree.sh b/t/t0090-cache-tree.sh new file mode 100755 index 0000000000..6c33e28ee8 --- /dev/null +++ b/t/t0090-cache-tree.sh @@ -0,0 +1,93 @@ +#!/bin/sh + +test_description="Test whether cache-tree is properly updated + +Tests whether various commands properly update and/or rewrite the +cache-tree extension. +" + . ./test-lib.sh + +cmp_cache_tree () { + test-dump-cache-tree >actual && + sed "s/$_x40/SHA/" <actual >filtered && + test_cmp "$1" filtered +} + +# We don't bother with actually checking the SHA1: +# test-dump-cache-tree already verifies that all existing data is +# correct. +test_shallow_cache_tree () { + printf "SHA (%d entries, 0 subtrees)\n" $(git ls-files|wc -l) >expect && + cmp_cache_tree expect +} + +test_invalid_cache_tree () { + echo "invalid (0 subtrees)" >expect && + printf "SHA #(ref) (%d entries, 0 subtrees)\n" $(git ls-files|wc -l) >>expect && + cmp_cache_tree expect +} + +test_no_cache_tree () { + : >expect && + cmp_cache_tree expect +} + +test_expect_failure 'initial commit has cache-tree' ' + test_commit foo && + test_shallow_cache_tree +' + +test_expect_success 'read-tree HEAD establishes cache-tree' ' + git read-tree HEAD && + test_shallow_cache_tree +' + +test_expect_success 'git-add invalidates cache-tree' ' + test_when_finished "git reset --hard; git read-tree HEAD" && + echo "I changed this file" > foo && + git add foo && + test_invalid_cache_tree +' + +test_expect_success 'update-index invalidates cache-tree' ' + test_when_finished "git reset --hard; git read-tree HEAD" && + echo "I changed this file" > foo && + git update-index --add foo && + test_invalid_cache_tree +' + +test_expect_success 'write-tree establishes cache-tree' ' + test-scrap-cache-tree && + git write-tree && + test_shallow_cache_tree +' + +test_expect_success 'test-scrap-cache-tree works' ' + git read-tree HEAD && + test-scrap-cache-tree && + test_no_cache_tree +' + +test_expect_success 'second commit has cache-tree' ' + test_commit bar && + test_shallow_cache_tree +' + +test_expect_success 'reset --hard gives cache-tree' ' + test-scrap-cache-tree && + git reset --hard && + test_shallow_cache_tree +' + +test_expect_success 'reset --hard without index gives cache-tree' ' + rm -f .git/index && + git reset --hard && + test_shallow_cache_tree +' + +test_expect_failure 'checkout gives cache-tree' ' + git checkout HEAD^ && + test_shallow_cache_tree +' + +test_done diff --git a/test-dump-cache-tree.c b/test-dump-cache-tree.c index 1f73f1ea7d..e6c292385f 100644 --- a/test-dump-cache-tree.c +++ b/test-dump-cache-tree.c @@ -59,6 +59,6 @@ int main(int ac, char **av) struct cache_tree *another = cache_tree(); if (read_cache() < 0) die("unable to read index file"); - cache_tree_update(another, active_cache, active_nr, 0, 1); + cache_tree_update(another, active_cache, active_nr, 0, 1, 0); return dump_cache_tree(active_cache_tree, another, ""); } diff --git a/test-scrap-cache-tree.c b/test-scrap-cache-tree.c new file mode 100644 index 0000000000..4728013910 --- /dev/null +++ b/test-scrap-cache-tree.c @@ -0,0 +1,17 @@ +#include "cache.h" +#include "tree.h" +#include "cache-tree.h" + +static struct lock_file index_lock; + +int main(int ac, char **av) +{ + int fd = hold_locked_index(&index_lock, 1); + if (read_cache() < 0) + die("unable to read index file"); + active_cache_tree = NULL; + if (write_cache(fd, active_cache, active_nr) + || commit_lock_file(&index_lock)) + die("unable to write index file"); + return 0; +} |