mirror of
https://github.com/git/git.git
synced 2025-01-04 06:33:58 +08:00
8d84097f96
As we merge commit-graph files in a commit-graph chain, we should clean
up the files that are no longer used.
This change introduces an 'expiry_window' value to the context, which is
always zero (for now). We then check the modified time of each
graph-{hash}.graph file in the $OBJDIR/info/commit-graphs folder and
unlink the files that are older than the expiry_window.
Since this is always zero, this immediately clears all unused graph
files. We will update the value to match a config setting in a future
change.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
173 lines
4.6 KiB
Bash
Executable File
173 lines
4.6 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
test_description='split commit graph'
|
|
. ./test-lib.sh
|
|
|
|
GIT_TEST_COMMIT_GRAPH=0
|
|
|
|
test_expect_success 'setup repo' '
|
|
git init &&
|
|
git config core.commitGraph true &&
|
|
infodir=".git/objects/info" &&
|
|
graphdir="$infodir/commit-graphs" &&
|
|
test_oid_init
|
|
'
|
|
|
|
graph_read_expect() {
|
|
NUM_BASE=0
|
|
if test ! -z $2
|
|
then
|
|
NUM_BASE=$2
|
|
fi
|
|
cat >expect <<- EOF
|
|
header: 43475048 1 1 3 $NUM_BASE
|
|
num_commits: $1
|
|
chunks: oid_fanout oid_lookup commit_metadata
|
|
EOF
|
|
git commit-graph read >output &&
|
|
test_cmp expect output
|
|
}
|
|
|
|
test_expect_success 'create commits and write commit-graph' '
|
|
for i in $(test_seq 3)
|
|
do
|
|
test_commit $i &&
|
|
git branch commits/$i || return 1
|
|
done &&
|
|
git commit-graph write --reachable &&
|
|
test_path_is_file $infodir/commit-graph &&
|
|
graph_read_expect 3
|
|
'
|
|
|
|
graph_git_two_modes() {
|
|
git -c core.commitGraph=true $1 >output
|
|
git -c core.commitGraph=false $1 >expect
|
|
test_cmp expect output
|
|
}
|
|
|
|
graph_git_behavior() {
|
|
MSG=$1
|
|
BRANCH=$2
|
|
COMPARE=$3
|
|
test_expect_success "check normal git operations: $MSG" '
|
|
graph_git_two_modes "log --oneline $BRANCH" &&
|
|
graph_git_two_modes "log --topo-order $BRANCH" &&
|
|
graph_git_two_modes "log --graph $COMPARE..$BRANCH" &&
|
|
graph_git_two_modes "branch -vv" &&
|
|
graph_git_two_modes "merge-base -a $BRANCH $COMPARE"
|
|
'
|
|
}
|
|
|
|
graph_git_behavior 'graph exists' commits/3 commits/1
|
|
|
|
verify_chain_files_exist() {
|
|
for hash in $(cat $1/commit-graph-chain)
|
|
do
|
|
test_path_is_file $1/graph-$hash.graph || return 1
|
|
done
|
|
}
|
|
|
|
test_expect_success 'add more commits, and write a new base graph' '
|
|
git reset --hard commits/1 &&
|
|
for i in $(test_seq 4 5)
|
|
do
|
|
test_commit $i &&
|
|
git branch commits/$i || return 1
|
|
done &&
|
|
git reset --hard commits/2 &&
|
|
for i in $(test_seq 6 10)
|
|
do
|
|
test_commit $i &&
|
|
git branch commits/$i || return 1
|
|
done &&
|
|
git reset --hard commits/2 &&
|
|
git merge commits/4 &&
|
|
git branch merge/1 &&
|
|
git reset --hard commits/4 &&
|
|
git merge commits/6 &&
|
|
git branch merge/2 &&
|
|
git commit-graph write --reachable &&
|
|
graph_read_expect 12
|
|
'
|
|
|
|
test_expect_success 'fork and fail to base a chain on a commit-graph file' '
|
|
test_when_finished rm -rf fork &&
|
|
git clone . fork &&
|
|
(
|
|
cd fork &&
|
|
rm .git/objects/info/commit-graph &&
|
|
echo "$(pwd)/../.git/objects" >.git/objects/info/alternates &&
|
|
test_commit new-commit &&
|
|
git commit-graph write --reachable --split &&
|
|
test_path_is_file $graphdir/commit-graph-chain &&
|
|
test_line_count = 1 $graphdir/commit-graph-chain &&
|
|
verify_chain_files_exist $graphdir
|
|
)
|
|
'
|
|
|
|
test_expect_success 'add three more commits, write a tip graph' '
|
|
git reset --hard commits/3 &&
|
|
git merge merge/1 &&
|
|
git merge commits/5 &&
|
|
git merge merge/2 &&
|
|
git branch merge/3 &&
|
|
git commit-graph write --reachable --split &&
|
|
test_path_is_missing $infodir/commit-graph &&
|
|
test_path_is_file $graphdir/commit-graph-chain &&
|
|
ls $graphdir/graph-*.graph >graph-files &&
|
|
test_line_count = 2 graph-files &&
|
|
verify_chain_files_exist $graphdir
|
|
'
|
|
|
|
graph_git_behavior 'split commit-graph: merge 3 vs 2' merge/3 merge/2
|
|
|
|
test_expect_success 'add one commit, write a tip graph' '
|
|
test_commit 11 &&
|
|
git branch commits/11 &&
|
|
git commit-graph write --reachable --split &&
|
|
test_path_is_missing $infodir/commit-graph &&
|
|
test_path_is_file $graphdir/commit-graph-chain &&
|
|
ls $graphdir/graph-*.graph >graph-files &&
|
|
test_line_count = 3 graph-files &&
|
|
verify_chain_files_exist $graphdir
|
|
'
|
|
|
|
graph_git_behavior 'three-layer commit-graph: commit 11 vs 6' commits/11 commits/6
|
|
|
|
test_expect_success 'add one commit, write a merged graph' '
|
|
test_commit 12 &&
|
|
git branch commits/12 &&
|
|
git commit-graph write --reachable --split &&
|
|
test_path_is_file $graphdir/commit-graph-chain &&
|
|
test_line_count = 2 $graphdir/commit-graph-chain &&
|
|
ls $graphdir/graph-*.graph >graph-files &&
|
|
test_line_count = 2 graph-files &&
|
|
verify_chain_files_exist $graphdir
|
|
'
|
|
|
|
graph_git_behavior 'merged commit-graph: commit 12 vs 6' commits/12 commits/6
|
|
|
|
test_expect_success 'create fork and chain across alternate' '
|
|
git clone . fork &&
|
|
(
|
|
cd fork &&
|
|
git config core.commitGraph true &&
|
|
rm -rf $graphdir &&
|
|
echo "$(pwd)/../.git/objects" >.git/objects/info/alternates &&
|
|
test_commit 13 &&
|
|
git branch commits/13 &&
|
|
git commit-graph write --reachable --split &&
|
|
test_path_is_file $graphdir/commit-graph-chain &&
|
|
test_line_count = 3 $graphdir/commit-graph-chain &&
|
|
ls $graphdir/graph-*.graph >graph-files &&
|
|
test_line_count = 1 graph-files &&
|
|
git -c core.commitGraph=true rev-list HEAD >expect &&
|
|
git -c core.commitGraph=false rev-list HEAD >actual &&
|
|
test_cmp expect actual
|
|
)
|
|
'
|
|
|
|
graph_git_behavior 'alternate: commit 13 vs 6' commits/13 commits/6
|
|
|
|
test_done
|