During the commit process, update the cache-tree. Write this updated
cache-tree so that it's ready for subsequent commands.
Add test code which demonstrates that git commit now writes the cache
tree. Make all tests test the entire cache-tree, not just the root
level.
Signed-off-by: David Turner dtur...@twitter.com
---
builtin/commit.c | 9 +-
t/t0090-cache-tree.sh | 87 ++-
2 files changed, 81 insertions(+), 15 deletions(-)
diff --git a/builtin/commit.c b/builtin/commit.c
index 9cfef6c..99c9054 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -342,6 +342,8 @@ static char *prepare_index(int argc, const char **argv,
const char *prefix,
discard_cache();
read_cache_from(index_lock.filename);
+ if (update_main_cache_tree(WRITE_TREE_SILENT) = 0)
+ write_cache(fd, active_cache, active_nr);
commit_style = COMMIT_NORMAL;
return index_lock.filename;
@@ -383,8 +385,12 @@ static char *prepare_index(int argc, const char **argv,
const char *prefix,
if (!only !pathspec.nr) {
fd = hold_locked_index(index_lock, 1);
refresh_cache_or_die(refresh_flags);
- if (active_cache_changed) {
+ if (active_cache_changed
+ || !cache_tree_fully_valid(active_cache_tree)) {
update_main_cache_tree(WRITE_TREE_SILENT);
+ active_cache_changed = 1;
+ }
+ if (active_cache_changed) {
if (write_cache(fd, active_cache, active_nr) ||
commit_locked_index(index_lock))
die(_(unable to write new_index file));
@@ -435,6 +441,7 @@ static char *prepare_index(int argc, const char **argv,
const char *prefix,
fd = hold_locked_index(index_lock, 1);
add_remove_files(partial);
refresh_cache(REFRESH_QUIET);
+ update_main_cache_tree(WRITE_TREE_SILENT);
if (write_cache(fd, active_cache, active_nr) ||
close_lock_file(index_lock))
die(_(unable to write new_index file));
diff --git a/t/t0090-cache-tree.sh b/t/t0090-cache-tree.sh
index 3a3342e..db7a8d0 100755
--- a/t/t0090-cache-tree.sh
+++ b/t/t0090-cache-tree.sh
@@ -8,7 +8,7 @@ cache-tree extension.
. ./test-lib.sh
cmp_cache_tree () {
- test-dump-cache-tree actual
+ test-dump-cache-tree | sed -e '/#(ref)/d' actual
sed s/$_x40/SHA/ actual filtered
test_cmp $1 filtered
}
@@ -16,8 +16,34 @@ cmp_cache_tree () {
# 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
+generate_expected_cache_tree_rec () {
+ dir=$1${1:+/}
+ parent=$2
+ # ls-files might have foo/bar, foo/bar/baz, and foo/bar/quux
+ # We want to count only foo because it's the only direct child
+ subtrees=$(git ls-files|grep /|cut -d / -f 1|uniq)
+ subtree_count=$(echo $subtrees|awk '$1 {++c} END {print c}')
+ entries=$(git ls-files|wc -l)
+ printf SHA $dir (%d entries, %d subtrees)\n $entries
$subtree_count
+ for subtree in $subtrees
+ do
+ cd $subtree
+ generate_expected_cache_tree_rec $dir$subtree $dir || return 1
+ cd ..
+ done
+ dir=$parent
+}
+
+generate_expected_cache_tree () {
+cwd=$(pwd)
+generate_expected_cache_tree_rec
+ret=$?
+cd $cwd
+return $ret
+}
+
+test_cache_tree () {
+ generate_expected_cache_tree expect
cmp_cache_tree expect
}
@@ -33,14 +59,14 @@ test_no_cache_tree () {
cmp_cache_tree expect
}
-test_expect_failure 'initial commit has cache-tree' '
+test_expect_success 'initial commit has cache-tree' '
test_commit foo
- test_shallow_cache_tree
+ test_cache_tree
'
test_expect_success 'read-tree HEAD establishes cache-tree' '
git read-tree HEAD
- test_shallow_cache_tree
+ test_cache_tree
'
test_expect_success 'git-add invalidates cache-tree' '
@@ -58,6 +84,18 @@ test_expect_success 'git-add in subdir invalidates
cache-tree' '
test_invalid_cache_tree
'
+cat before \EOF
+SHA (3 entries, 2 subtrees)
+SHA dir1/ (1 entries, 0 subtrees)
+SHA dir2/ (1 entries, 0 subtrees)
+EOF
+
+cat expect \EOF
+invalid (2 subtrees)
+invalid dir1/ (0 subtrees)
+SHA dir2/ (1 entries, 0 subtrees)
+EOF
+
test_expect_success 'git-add in subdir does not invalidate sibling cache-tree'
'
git tag no-children
test_when_finished git reset --hard no-children; git read-tree HEAD
@@ -65,8 +103,10 @@ test_expect_success 'git-add in subdir does not invalidate
sibling cache-tree'
