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Diffstat (limited to 't/t0610-reftable-basics.sh')
| -rwxr-xr-x | t/t0610-reftable-basics.sh | 1032 |
1 files changed, 1032 insertions, 0 deletions
diff --git a/t/t0610-reftable-basics.sh b/t/t0610-reftable-basics.sh new file mode 100755 index 0000000..178791e --- /dev/null +++ b/t/t0610-reftable-basics.sh @@ -0,0 +1,1032 @@ +#!/bin/sh +# +# Copyright (c) 2020 Google LLC +# + +test_description='reftable basics' +GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main +export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME + +. ./test-lib.sh + +if ! test_have_prereq REFTABLE +then + skip_all='skipping reftable tests; set GIT_TEST_DEFAULT_REF_FORMAT=reftable' + test_done +fi + +INVALID_OID=$(test_oid 001) + +test_expect_success 'init: creates basic reftable structures' ' + test_when_finished "rm -rf repo" && + git init repo && + test_path_is_dir repo/.git/reftable && + test_path_is_file repo/.git/reftable/tables.list && + echo reftable >expect && + git -C repo rev-parse --show-ref-format >actual && + test_cmp expect actual +' + +test_expect_success 'init: sha256 object format via environment variable' ' + test_when_finished "rm -rf repo" && + GIT_DEFAULT_HASH=sha256 git init repo && + cat >expect <<-EOF && + sha256 + reftable + EOF + git -C repo rev-parse --show-object-format --show-ref-format >actual && + test_cmp expect actual +' + +test_expect_success 'init: sha256 object format via option' ' + test_when_finished "rm -rf repo" && + git init --object-format=sha256 repo && + cat >expect <<-EOF && + sha256 + reftable + EOF + git -C repo rev-parse --show-object-format --show-ref-format >actual && + test_cmp expect actual +' + +test_expect_success 'init: reinitializing reftable backend succeeds' ' + test_when_finished "rm -rf repo" && + git init repo && + test_commit -C repo A && + + git -C repo for-each-ref >expect && + git init --ref-format=reftable repo && + git -C repo for-each-ref >actual && + test_cmp expect actual +' + +test_expect_success 'init: reinitializing files with reftable backend fails' ' + test_when_finished "rm -rf repo" && + git init --ref-format=files repo && + test_commit -C repo file && + + cp repo/.git/HEAD expect && + test_must_fail git init --ref-format=reftable repo && + test_cmp expect repo/.git/HEAD +' + +test_expect_success 'init: reinitializing reftable with files backend fails' ' + test_when_finished "rm -rf repo" && + git init --ref-format=reftable repo && + test_commit -C repo file && + + cp repo/.git/HEAD expect && + test_must_fail git init --ref-format=files repo && + test_cmp expect repo/.git/HEAD +' + +test_expect_perms () { + local perms="$1" + local file="$2" + local actual="$(ls -l "$file")" && + + case "$actual" in + $perms*) + : happy + ;; + *) + echo "$(basename $2) is not $perms but $actual" + false + ;; + esac +} + +test_expect_reftable_perms () { + local umask="$1" + local shared="$2" + local expect="$3" + + test_expect_success POSIXPERM "init: honors --shared=$shared with umask $umask" ' + test_when_finished "rm -rf repo" && + ( + umask $umask && + git init --shared=$shared repo + ) && + test_expect_perms "$expect" repo/.git/reftable/tables.list && + for table in repo/.git/reftable/*.ref + do + test_expect_perms "$expect" "$table" || + return 1 + done + ' + + test_expect_success POSIXPERM "pack-refs: honors --shared=$shared with umask $umask" ' + test_when_finished "rm -rf repo" && + ( + umask $umask && + git init --shared=$shared repo && + test_commit -C repo A && + test_line_count = 2 repo/.git/reftable/tables.list && + git -C repo pack-refs + ) && + test_expect_perms "$expect" repo/.git/reftable/tables.list && + for table in repo/.git/reftable/*.ref + do + test_expect_perms "$expect" "$table" || + return 1 + done + ' +} + +test_expect_reftable_perms 002 umask "-rw-rw-r--" +test_expect_reftable_perms 022 umask "-rw-r--r--" +test_expect_reftable_perms 027 umask "-rw-r-----" + +test_expect_reftable_perms 002 group "-rw-rw-r--" +test_expect_reftable_perms 022 group "-rw-rw-r--" +test_expect_reftable_perms 027 group "-rw-rw----" + +test_expect_reftable_perms 002 world "-rw-rw-r--" +test_expect_reftable_perms 022 world "-rw-rw-r--" +test_expect_reftable_perms 027 world "-rw-rw-r--" + +test_expect_success 'clone: can clone reftable repository' ' + test_when_finished "rm -rf repo clone" && + git init repo && + test_commit -C repo message1 file1 && + + git clone repo cloned && + echo reftable >expect && + git -C cloned rev-parse --show-ref-format >actual && + test_cmp expect actual && + test_path_is_file cloned/file1 +' + +test_expect_success 'clone: can clone reffiles into reftable repository' ' + test_when_finished "rm -rf reffiles reftable" && + git init --ref-format=files reffiles && + test_commit -C reffiles A && + git clone --ref-format=reftable ./reffiles reftable && + + git -C reffiles rev-parse HEAD >expect && + git -C reftable rev-parse HEAD >actual && + test_cmp expect actual && + + git -C reftable rev-parse --show-ref-format >actual && + echo reftable >expect && + test_cmp expect actual && + + git -C reffiles rev-parse --show-ref-format >actual && + echo files >expect && + test_cmp expect actual +' + +test_expect_success 'clone: can clone reftable into reffiles repository' ' + test_when_finished "rm -rf reffiles reftable" && + git init --ref-format=reftable reftable && + test_commit -C reftable A && + git clone --ref-format=files ./reftable reffiles && + + git -C reftable rev-parse HEAD >expect && + git -C reffiles rev-parse HEAD >actual && + test_cmp expect actual && + + git -C reftable rev-parse --show-ref-format >actual && + echo reftable >expect && + test_cmp expect actual && + + git -C reffiles rev-parse --show-ref-format >actual && + echo files >expect && + test_cmp expect actual +' + +test_expect_success 'ref transaction: corrupted tables cause failure' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + test_commit file1 && + for f in .git/reftable/*.ref + do + : >"$f" || return 1 + done && + test_must_fail git update-ref refs/heads/main HEAD + ) +' + +test_expect_success 'ref transaction: corrupted tables.list cause failure' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + test_commit file1 && + echo garbage >.git/reftable/tables.list && + test_must_fail git update-ref refs/heads/main HEAD + ) +' + +test_expect_success 'ref transaction: refuses to write ref causing F/D conflict' ' + test_when_finished "rm -rf repo" && + git init repo && + test_commit -C repo file && + test_must_fail git -C repo update-ref refs/heads/main/forbidden +' + +test_expect_success 'ref transaction: deleting ref with invalid name fails' ' + test_when_finished "rm -rf repo" && + git init repo && + test_commit -C repo file && + test_must_fail git -C repo update-ref -d ../../my-private-file +' + +test_expect_success 'ref transaction: can skip object ID verification' ' + test_when_finished "rm -rf repo" && + git init repo && + test_must_fail test-tool -C repo ref-store main update-ref msg refs/heads/branch $INVALID_OID $ZERO_OID 0 && + test-tool -C repo ref-store main update-ref msg refs/heads/branch $INVALID_OID $ZERO_OID REF_SKIP_OID_VERIFICATION +' + +test_expect_success 'ref transaction: updating same ref multiple times fails' ' + test_when_finished "rm -rf repo" && + git init repo && + test_commit -C repo A && + cat >updates <<-EOF && + update refs/heads/main $A + update refs/heads/main $A + EOF + cat >expect <<-EOF && + fatal: multiple updates for ref ${SQ}refs/heads/main${SQ} not allowed + EOF + test_must_fail git -C repo update-ref --stdin <updates 2>err && + test_cmp expect err +' + +test_expect_success 'ref transaction: can delete symbolic self-reference with git-symbolic-ref(1)' ' + test_when_finished "rm -rf repo" && + git init repo && + git -C repo symbolic-ref refs/heads/self refs/heads/self && + git -C repo symbolic-ref -d refs/heads/self +' + +test_expect_success 'ref transaction: deleting symbolic self-reference without --no-deref fails' ' + test_when_finished "rm -rf repo" && + git init repo && + git -C repo symbolic-ref refs/heads/self refs/heads/self && + cat >expect <<-EOF && + error: multiple updates for ${SQ}refs/heads/self${SQ} (including one via symref ${SQ}refs/heads/self${SQ}) are not allowed + EOF + test_must_fail git -C repo update-ref -d refs/heads/self 2>err && + test_cmp expect err +' + +test_expect_success 'ref transaction: deleting symbolic self-reference with --no-deref succeeds' ' + test_when_finished "rm -rf repo" && + git init repo && + git -C repo symbolic-ref refs/heads/self refs/heads/self && + git -C repo update-ref -d --no-deref refs/heads/self +' + +test_expect_success 'ref transaction: creating symbolic ref fails with F/D conflict' ' + test_when_finished "rm -rf repo" && + git init repo && + test_commit -C repo A && + cat >expect <<-EOF && + error: unable to write symref for refs/heads: file/directory conflict + EOF + test_must_fail git -C repo symbolic-ref refs/heads refs/heads/foo 2>err && + test_cmp expect err +' + +test_expect_success 'ref transaction: ref deletion' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + test_commit file && + HEAD_OID=$(git show-ref -s --verify HEAD) && + cat >expect <<-EOF && + $HEAD_OID refs/heads/main + $HEAD_OID refs/tags/file + EOF + git show-ref >actual && + test_cmp expect actual && + + test_must_fail git update-ref -d refs/tags/file $INVALID_OID && + git show-ref >actual && + test_cmp expect actual && + + git update-ref -d refs/tags/file $HEAD_OID && + echo "$HEAD_OID refs/heads/main" >expect && + git show-ref >actual && + test_cmp expect actual + ) +' + +test_expect_success 'ref transaction: writes cause auto-compaction' ' + test_when_finished "rm -rf repo" && + + git init repo && + test_line_count = 1 repo/.git/reftable/tables.list && + + test_commit -C repo --no-tag A && + test_line_count = 1 repo/.git/reftable/tables.list && + + test_commit -C repo --no-tag B && + test_line_count = 1 repo/.git/reftable/tables.list +' + +test_expect_success 'ref transaction: env var disables compaction' ' + test_when_finished "rm -rf repo" && + + git init repo && + test_commit -C repo A && + + start=$(wc -l <repo/.git/reftable/tables.list) && + iterations=5 && + expected=$((start + iterations)) && + + for i in $(test_seq $iterations) + do + GIT_TEST_REFTABLE_AUTOCOMPACTION=false \ + git -C repo update-ref branch-$i HEAD || return 1 + done && + test_line_count = $expected repo/.git/reftable/tables.list && + + git -C repo update-ref foo HEAD && + test_line_count -lt $expected repo/.git/reftable/tables.list +' + +test_expect_success 'ref transaction: alternating table sizes are compacted' ' + test_when_finished "rm -rf repo" && + + git init repo && + test_commit -C repo A && + for i in $(test_seq 5) + do + git -C repo branch -f foo && + git -C repo branch -d foo || return 1 + done && + test_line_count = 2 repo/.git/reftable/tables.list +' + +check_fsync_events () { + local trace="$1" && + shift && + + cat >expect && + sed -n \ + -e '/^{"event":"counter",.*"category":"fsync",/ { + s/.*"category":"fsync",//; + s/}$//; + p; + }' \ + <"$trace" >actual && + test_cmp expect actual +} + +test_expect_success 'ref transaction: writes are synced' ' + test_when_finished "rm -rf repo" && + git init repo && + test_commit -C repo initial && + + GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \ + GIT_TEST_FSYNC=true \ + git -C repo -c core.fsync=reference \ + -c core.fsyncMethod=fsync update-ref refs/heads/branch HEAD && + check_fsync_events trace2.txt <<-EOF + "name":"hardware-flush","count":4 + EOF +' + +test_expect_success 'ref transaction: empty transaction in empty repo' ' + test_when_finished "rm -rf repo" && + git init repo && + test_commit -C repo --no-tag A && + git -C repo update-ref -d refs/heads/main && + test-tool -C repo ref-store main delete-refs REF_NO_DEREF msg HEAD && + git -C repo update-ref --stdin <<-EOF + prepare + commit + EOF +' + +test_expect_success 'ref transaction: fails gracefully when auto compaction fails' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + + test_commit A && + for i in $(test_seq 10) + do + git branch branch-$i && + for table in .git/reftable/*.ref + do + touch "$table.lock" || exit 1 + done || + exit 1 + done && + test_line_count = 10 .git/reftable/tables.list + ) +' + +test_expect_success 'pack-refs: compacts tables' ' + test_when_finished "rm -rf repo" && + git init repo && + + test_commit -C repo A && + ls -1 repo/.git/reftable >table-files && + test_line_count = 3 table-files && + test_line_count = 2 repo/.git/reftable/tables.list && + + git -C repo pack-refs && + ls -1 repo/.git/reftable >table-files && + test_line_count = 2 table-files && + test_line_count = 1 repo/.git/reftable/tables.list +' + +test_expect_success 'pack-refs: compaction raises locking errors' ' + test_when_finished "rm -rf repo" && + git init repo && + test_commit -C repo A && + touch repo/.git/reftable/tables.list.lock && + cat >expect <<-EOF && + error: unable to compact stack: data is locked + EOF + test_must_fail git -C repo pack-refs 2>err && + test_cmp expect err +' + +for command in pack-refs gc "maintenance run --task=pack-refs" +do +test_expect_success "$command: auto compaction" ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + + test_commit A && + + # We need a bit of setup to ensure that git-gc(1) actually + # triggers, and that it does not write anything to the refdb. + git config gc.auto 1 && + git config gc.autoDetach 0 && + git config gc.reflogExpire never && + git config gc.reflogExpireUnreachable never && + test_oid blob17_1 | git hash-object -w --stdin && + + # The tables should have been auto-compacted, and thus auto + # compaction should not have to do anything. + ls -1 .git/reftable >tables-expect && + test_line_count = 3 tables-expect && + git $command --auto && + ls -1 .git/reftable >tables-actual && + test_cmp tables-expect tables-actual && + + test_oid blob17_2 | git hash-object -w --stdin && + + # Lock all tables write some refs. Auto-compaction will be + # unable to compact tables and thus fails gracefully, leaving + # the stack in a sub-optimal state. + ls .git/reftable/*.ref | + while read table + do + touch "$table.lock" || exit 1 + done && + git branch B && + git branch C && + rm .git/reftable/*.lock && + test_line_count = 4 .git/reftable/tables.list && + + git $command --auto && + test_line_count = 1 .git/reftable/tables.list + ) +' +done + +test_expect_success 'pack-refs: prunes stale tables' ' + test_when_finished "rm -rf repo" && + git init repo && + touch repo/.git/reftable/stale-table.ref && + git -C repo pack-refs && + test_path_is_missing repo/.git/reftable/stable-ref.ref +' + +test_expect_success 'pack-refs: does not prune non-table files' ' + test_when_finished "rm -rf repo" && + git init repo && + touch repo/.git/reftable/garbage && + git -C repo pack-refs && + test_path_is_file repo/.git/reftable/garbage +' + +test_expect_success 'packed-refs: writes are synced' ' + test_when_finished "rm -rf repo" && + git init repo && + test_commit -C repo initial && + test_line_count = 2 table-files && + + : >trace2.txt && + GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \ + GIT_TEST_FSYNC=true \ + git -C repo -c core.fsync=reference \ + -c core.fsyncMethod=fsync pack-refs && + check_fsync_events trace2.txt <<-EOF + "name":"hardware-flush","count":2 + EOF +' + +test_expect_success 'ref iterator: bogus names are flagged' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + test_commit --no-tag file && + test-tool ref-store main update-ref msg "refs/heads/bogus..name" $(git rev-parse HEAD) $ZERO_OID REF_SKIP_REFNAME_VERIFICATION && + + cat >expect <<-EOF && + $ZERO_OID refs/heads/bogus..name 0xc + $(git rev-parse HEAD) refs/heads/main 0x0 + EOF + test-tool ref-store main for-each-ref "" >actual && + test_cmp expect actual + ) +' + +test_expect_success 'ref iterator: missing object IDs are not flagged' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + test-tool ref-store main update-ref msg "refs/heads/broken-hash" $INVALID_OID $ZERO_OID REF_SKIP_OID_VERIFICATION && + + cat >expect <<-EOF && + $INVALID_OID refs/heads/broken-hash 0x0 + EOF + test-tool ref-store main for-each-ref "" >actual && + test_cmp expect actual + ) +' + +test_expect_success 'basic: commit and list refs' ' + test_when_finished "rm -rf repo" && + git init repo && + test_commit -C repo file && + test_write_lines refs/heads/main refs/tags/file >expect && + git -C repo for-each-ref --format="%(refname)" >actual && + test_cmp actual expect +' + +test_expect_success 'basic: can write large commit message' ' + test_when_finished "rm -rf repo" && + git init repo && + perl -e " + print \"this is a long commit message\" x 50000 + " >commit-msg && + git -C repo commit --allow-empty --file=../commit-msg +' + +test_expect_success 'basic: show-ref fails with empty repository' ' + test_when_finished "rm -rf repo" && + git init repo && + test_must_fail git -C repo show-ref >actual && + test_must_be_empty actual +' + +test_expect_success 'basic: can check out unborn branch' ' + test_when_finished "rm -rf repo" && + git init repo && + git -C repo checkout -b main +' + +test_expect_success 'basic: peeled tags are stored' ' + test_when_finished "rm -rf repo" && + git init repo && + test_commit -C repo file && + git -C repo tag -m "annotated tag" test_tag HEAD && + for ref in refs/heads/main refs/tags/file refs/tags/test_tag refs/tags/test_tag^{} + do + echo "$(git -C repo rev-parse "$ref") $ref" || return 1 + done >expect && + git -C repo show-ref -d >actual && + test_cmp expect actual +' + +test_expect_success 'basic: for-each-ref can print symrefs' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + test_commit file && + git branch && + git symbolic-ref refs/heads/sym refs/heads/main && + cat >expected <<-EOF && + refs/heads/main + EOF + git for-each-ref --format="%(symref)" refs/heads/sym >actual && + test_cmp expected actual + ) +' + +test_expect_success 'basic: notes' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + write_script fake_editor <<-\EOF && + echo "$MSG" >"$1" + echo "$MSG" >&2 + EOF + + test_commit 1st && + test_commit 2nd && + GIT_EDITOR=./fake_editor MSG=b4 git notes add && + GIT_EDITOR=./fake_editor MSG=b3 git notes edit && + echo b4 >expect && + git notes --ref commits@{1} show >actual && + test_cmp expect actual + ) +' + +test_expect_success 'basic: stash' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + test_commit file && + git stash list >expect && + test_line_count = 0 expect && + + echo hoi >>file.t && + git stash push -m stashed && + git stash list >expect && + test_line_count = 1 expect && + + git stash clear && + git stash list >expect && + test_line_count = 0 expect + ) +' + +test_expect_success 'basic: cherry-pick' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + test_commit message1 file1 && + test_commit message2 file2 && + git branch source && + git checkout HEAD^ && + test_commit message3 file3 && + git cherry-pick source && + test_path_is_file file2 + ) +' + +test_expect_success 'basic: rebase' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + test_commit message1 file1 && + test_commit message2 file2 && + git branch source && + git checkout HEAD^ && + test_commit message3 file3 && + git rebase source && + test_path_is_file file2 + ) +' + +test_expect_success 'reflog: can delete separate reflog entries' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + + test_commit file && + test_commit file2 && + test_commit file3 && + test_commit file4 && + git reflog >actual && + grep file3 actual && + + git reflog delete HEAD@{1} && + git reflog >actual && + ! grep file3 actual + ) +' + +test_expect_success 'reflog: can switch to previous branch' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + test_commit file1 && + git checkout -b branch1 && + test_commit file2 && + git checkout -b branch2 && + git switch - && + git rev-parse --symbolic-full-name HEAD >actual && + echo refs/heads/branch1 >expect && + test_cmp actual expect + ) +' + +test_expect_success 'reflog: copying branch writes reflog entry' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + test_commit file1 && + test_commit file2 && + oid=$(git rev-parse --short HEAD) && + git branch src && + cat >expect <<-EOF && + ${oid} dst@{0}: Branch: copied refs/heads/src to refs/heads/dst + ${oid} dst@{1}: branch: Created from main + EOF + git branch -c src dst && + git reflog dst >actual && + test_cmp expect actual + ) +' + +test_expect_success 'reflog: renaming branch writes reflog entry' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + git symbolic-ref HEAD refs/heads/before && + test_commit file && + git show-ref >expected.refs && + sed s/before/after/g <expected.refs >expected && + git branch -M after && + git show-ref >actual && + test_cmp expected actual && + echo refs/heads/after >expected && + git symbolic-ref HEAD >actual && + test_cmp expected actual + ) +' + +test_expect_success 'reflog: can store empty logs' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + + test_must_fail test-tool ref-store main reflog-exists refs/heads/branch && + test-tool ref-store main create-reflog refs/heads/branch && + test-tool ref-store main reflog-exists refs/heads/branch && + test-tool ref-store main for-each-reflog-ent-reverse refs/heads/branch >actual && + test_must_be_empty actual + ) +' + +test_expect_success 'reflog: expiry empties reflog' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + + test_commit initial && + git checkout -b branch && + test_commit fileA && + test_commit fileB && + + cat >expect <<-EOF && + commit: fileB + commit: fileA + branch: Created from HEAD + EOF + git reflog show --format="%gs" refs/heads/branch >actual && + test_cmp expect actual && + + git reflog expire branch --expire=all && + git reflog show --format="%gs" refs/heads/branch >actual && + test_must_be_empty actual && + test-tool ref-store main reflog-exists refs/heads/branch + ) +' + +test_expect_success 'reflog: can be deleted' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + test_commit initial && + test-tool ref-store main reflog-exists refs/heads/main && + test-tool ref-store main delete-reflog refs/heads/main && + test_must_fail test-tool ref-store main reflog-exists refs/heads/main + ) +' + +test_expect_success 'reflog: garbage collection deletes reflog entries' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + + for count in $(test_seq 1 10) + do + test_commit "number $count" file.t $count number-$count || + return 1 + done && + git reflog refs/heads/main >actual && + test_line_count = 10 actual && + grep "commit (initial): number 1" actual && + grep "commit: number 10" actual && + + git gc && + git reflog refs/heads/main >actual && + test_line_count = 0 actual + ) +' + +test_expect_success 'reflog: updates via HEAD update HEAD reflog' ' + test_when_finished "rm -rf repo" && + git init repo && + ( + cd repo && + test_commit main-one && + git checkout -b new-branch && + test_commit new-one && + test_commit new-two && + + echo new-one >expect && + git log -1 --format=%s HEAD@{1} >actual && + test_cmp expect actual + ) +' + +test_expect_success 'worktree: adding worktree creates separate stack' ' + test_when_finished "rm -rf repo worktree" && + git init repo && + test_commit -C repo A && + + git -C repo worktree add ../worktree && + test_path_is_file repo/.git/worktrees/worktree/refs/heads && + echo "ref: refs/heads/.invalid" >expect && + test_cmp expect repo/.git/worktrees/worktree/HEAD && + test_path_is_dir repo/.git/worktrees/worktree/reftable && + test_path_is_file repo/.git/worktrees/worktree/reftable/tables.list +' + +test_expect_success 'worktree: pack-refs in main repo packs main refs' ' + test_when_finished "rm -rf repo worktree" && + git init repo && + test_commit -C repo A && + + GIT_TEST_REFTABLE_AUTOCOMPACTION=false \ + git -C repo worktree add ../worktree && + GIT_TEST_REFTABLE_AUTOCOMPACTION=false \ + git -C worktree update-ref refs/worktree/per-worktree HEAD && + + test_line_count = 4 repo/.git/worktrees/worktree/reftable/tables.list && + test_line_count = 3 repo/.git/reftable/tables.list && + git -C repo pack-refs && + test_line_count = 4 repo/.git/worktrees/worktree/reftable/tables.list && + test_line_count = 1 repo/.git/reftable/tables.list +' + +test_expect_success 'worktree: pack-refs in worktree packs worktree refs' ' + test_when_finished "rm -rf repo worktree" && + git init repo && + test_commit -C repo A && + + GIT_TEST_REFTABLE_AUTOCOMPACTION=false \ + git -C repo worktree add ../worktree && + GIT_TEST_REFTABLE_AUTOCOMPACTION=false \ + git -C worktree update-ref refs/worktree/per-worktree HEAD && + + test_line_count = 4 repo/.git/worktrees/worktree/reftable/tables.list && + test_line_count = 3 repo/.git/reftable/tables.list && + git -C worktree pack-refs && + test_line_count = 1 repo/.git/worktrees/worktree/reftable/tables.list && + test_line_count = 3 repo/.git/reftable/tables.list +' + +test_expect_success 'worktree: creating shared ref updates main stack' ' + test_when_finished "rm -rf repo worktree" && + git init repo && + test_commit -C repo A && + + git -C repo worktree add ../worktree && + git -C repo pack-refs && + git -C worktree pack-refs && + test_line_count = 1 repo/.git/worktrees/worktree/reftable/tables.list && + test_line_count = 1 repo/.git/reftable/tables.list && + + GIT_TEST_REFTABLE_AUTOCOMPACTION=false \ + git -C worktree update-ref refs/heads/shared HEAD && + test_line_count = 1 repo/.git/worktrees/worktree/reftable/tables.list && + test_line_count = 2 repo/.git/reftable/tables.list +' + +test_expect_success 'worktree: creating per-worktree ref updates worktree stack' ' + test_when_finished "rm -rf repo worktree" && + git init repo && + test_commit -C repo A && + + git -C repo worktree add ../worktree && + git -C repo pack-refs && + git -C worktree pack-refs && + test_line_count = 1 repo/.git/worktrees/worktree/reftable/tables.list && + test_line_count = 1 repo/.git/reftable/tables.list && + + git -C worktree update-ref refs/bisect/per-worktree HEAD && + test_line_count = 2 repo/.git/worktrees/worktree/reftable/tables.list && + test_line_count = 1 repo/.git/reftable/tables.list +' + +test_expect_success 'worktree: creating per-worktree ref from main repo' ' + test_when_finished "rm -rf repo worktree" && + git init repo && + test_commit -C repo A && + + git -C repo worktree add ../worktree && + git -C repo pack-refs && + git -C worktree pack-refs && + test_line_count = 1 repo/.git/worktrees/worktree/reftable/tables.list && + test_line_count = 1 repo/.git/reftable/tables.list && + + git -C repo update-ref worktrees/worktree/refs/bisect/per-worktree HEAD && + test_line_count = 2 repo/.git/worktrees/worktree/reftable/tables.list && + test_line_count = 1 repo/.git/reftable/tables.list +' + +test_expect_success 'worktree: creating per-worktree ref from second worktree' ' + test_when_finished "rm -rf repo wt1 wt2" && + git init repo && + test_commit -C repo A && + + git -C repo worktree add ../wt1 && + git -C repo worktree add ../wt2 && + git -C repo pack-refs && + git -C wt1 pack-refs && + git -C wt2 pack-refs && + test_line_count = 1 repo/.git/worktrees/wt1/reftable/tables.list && + test_line_count = 1 repo/.git/worktrees/wt2/reftable/tables.list && + test_line_count = 1 repo/.git/reftable/tables.list && + + git -C wt1 update-ref worktrees/wt2/refs/bisect/per-worktree HEAD && + test_line_count = 1 repo/.git/worktrees/wt1/reftable/tables.list && + test_line_count = 2 repo/.git/worktrees/wt2/reftable/tables.list && + test_line_count = 1 repo/.git/reftable/tables.list +' + +test_expect_success 'worktree: can create shared and per-worktree ref in one transaction' ' + test_when_finished "rm -rf repo worktree" && + git init repo && + test_commit -C repo A && + + git -C repo worktree add ../worktree && + git -C repo pack-refs && + git -C worktree pack-refs && + test_line_count = 1 repo/.git/worktrees/worktree/reftable/tables.list && + test_line_count = 1 repo/.git/reftable/tables.list && + + cat >stdin <<-EOF && + create worktrees/worktree/refs/bisect/per-worktree HEAD + create refs/branches/shared HEAD + EOF + git -C repo update-ref --stdin <stdin && + test_line_count = 2 repo/.git/worktrees/worktree/reftable/tables.list && + test_line_count = 2 repo/.git/reftable/tables.list +' + +test_expect_success 'worktree: can access common refs' ' + test_when_finished "rm -rf repo worktree" && + git init repo && + test_commit -C repo file1 && + git -C repo branch branch1 && + git -C repo worktree add ../worktree && + + echo refs/heads/worktree >expect && + git -C worktree symbolic-ref HEAD >actual && + test_cmp expect actual && + git -C worktree checkout branch1 +' + +test_expect_success 'worktree: adds worktree with detached HEAD' ' + test_when_finished "rm -rf repo worktree" && + + git init repo && + test_commit -C repo A && + git -C repo rev-parse main >expect && + + git -C repo worktree add --detach ../worktree main && + git -C worktree rev-parse HEAD >actual && + test_cmp expect actual +' + +test_expect_success 'fetch: accessing FETCH_HEAD special ref works' ' + test_when_finished "rm -rf repo sub" && + + git init sub && + test_commit -C sub two && + git -C sub rev-parse HEAD >expect && + + git init repo && + test_commit -C repo one && + git -C repo fetch ../sub && + git -C repo rev-parse FETCH_HEAD >actual && + test_cmp expect actual +' + +test_done |