| #!/bin/sh |
| |
| test_description='Test reffiles backend' |
| |
| GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main |
| export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME |
| |
| TEST_PASSES_SANITIZE_LEAK=true |
| . ./test-lib.sh |
| |
| if ! test_have_prereq REFFILES |
| then |
| skip_all='skipping reffiles specific tests' |
| test_done |
| fi |
| |
| test_expect_success 'setup' ' |
| git commit --allow-empty -m Initial && |
| C=$(git rev-parse HEAD) && |
| git commit --allow-empty -m Second && |
| D=$(git rev-parse HEAD) && |
| git commit --allow-empty -m Third && |
| E=$(git rev-parse HEAD) |
| ' |
| |
| test_expect_success 'empty directory should not fool rev-parse' ' |
| prefix=refs/e-rev-parse && |
| git update-ref $prefix/foo $C && |
| git pack-refs --all && |
| mkdir -p .git/$prefix/foo/bar/baz && |
| echo "$C" >expected && |
| git rev-parse $prefix/foo >actual && |
| test_cmp expected actual |
| ' |
| |
| test_expect_success 'empty directory should not fool for-each-ref' ' |
| prefix=refs/e-for-each-ref && |
| git update-ref $prefix/foo $C && |
| git for-each-ref $prefix >expected && |
| git pack-refs --all && |
| mkdir -p .git/$prefix/foo/bar/baz && |
| git for-each-ref $prefix >actual && |
| test_cmp expected actual |
| ' |
| |
| test_expect_success 'empty directory should not fool create' ' |
| prefix=refs/e-create && |
| mkdir -p .git/$prefix/foo/bar/baz && |
| printf "create %s $C\n" $prefix/foo | |
| git update-ref --stdin |
| ' |
| |
| test_expect_success 'empty directory should not fool verify' ' |
| prefix=refs/e-verify && |
| git update-ref $prefix/foo $C && |
| git pack-refs --all && |
| mkdir -p .git/$prefix/foo/bar/baz && |
| printf "verify %s $C\n" $prefix/foo | |
| git update-ref --stdin |
| ' |
| |
| test_expect_success 'empty directory should not fool 1-arg update' ' |
| prefix=refs/e-update-1 && |
| git update-ref $prefix/foo $C && |
| git pack-refs --all && |
| mkdir -p .git/$prefix/foo/bar/baz && |
| printf "update %s $D\n" $prefix/foo | |
| git update-ref --stdin |
| ' |
| |
| test_expect_success 'empty directory should not fool 2-arg update' ' |
| prefix=refs/e-update-2 && |
| git update-ref $prefix/foo $C && |
| git pack-refs --all && |
| mkdir -p .git/$prefix/foo/bar/baz && |
| printf "update %s $D $C\n" $prefix/foo | |
| git update-ref --stdin |
| ' |
| |
| test_expect_success 'empty directory should not fool 0-arg delete' ' |
| prefix=refs/e-delete-0 && |
| git update-ref $prefix/foo $C && |
| git pack-refs --all && |
| mkdir -p .git/$prefix/foo/bar/baz && |
| printf "delete %s\n" $prefix/foo | |
| git update-ref --stdin |
| ' |
| |
| test_expect_success 'empty directory should not fool 1-arg delete' ' |
| prefix=refs/e-delete-1 && |
| git update-ref $prefix/foo $C && |
| git pack-refs --all && |
| mkdir -p .git/$prefix/foo/bar/baz && |
| printf "delete %s $C\n" $prefix/foo | |
| git update-ref --stdin |
| ' |
| |
| test_expect_success 'non-empty directory blocks create' ' |
| prefix=refs/ne-create && |
| mkdir -p .git/$prefix/foo/bar && |
| : >.git/$prefix/foo/bar/baz.lock && |
| test_when_finished "rm -f .git/$prefix/foo/bar/baz.lock" && |
| cat >expected <<-EOF && |
| fatal: cannot lock ref $SQ$prefix/foo$SQ: there is a non-empty directory $SQ.git/$prefix/foo$SQ blocking reference $SQ$prefix/foo$SQ |
| EOF |
| printf "%s\n" "update $prefix/foo $C" | |
| test_must_fail git update-ref --stdin 2>output.err && |
| test_cmp expected output.err && |
| cat >expected <<-EOF && |
| fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ |
| EOF |
| printf "%s\n" "update $prefix/foo $D $C" | |
| test_must_fail git update-ref --stdin 2>output.err && |
| test_cmp expected output.err |
| ' |
| |
| test_expect_success 'broken reference blocks create' ' |
| prefix=refs/broken-create && |
| mkdir -p .git/$prefix && |
| echo "gobbledigook" >.git/$prefix/foo && |
| test_when_finished "rm -f .git/$prefix/foo" && |
| cat >expected <<-EOF && |
| fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken |
| EOF |
| printf "%s\n" "update $prefix/foo $C" | |
| test_must_fail git update-ref --stdin 2>output.err && |
| test_cmp expected output.err && |
| cat >expected <<-EOF && |
| fatal: cannot lock ref $SQ$prefix/foo$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken |
| EOF |
| printf "%s\n" "update $prefix/foo $D $C" | |
| test_must_fail git update-ref --stdin 2>output.err && |
| test_cmp expected output.err |
| ' |
| |
| test_expect_success 'non-empty directory blocks indirect create' ' |
| prefix=refs/ne-indirect-create && |
| git symbolic-ref $prefix/symref $prefix/foo && |
| mkdir -p .git/$prefix/foo/bar && |
| : >.git/$prefix/foo/bar/baz.lock && |
| test_when_finished "rm -f .git/$prefix/foo/bar/baz.lock" && |
| cat >expected <<-EOF && |
| fatal: cannot lock ref $SQ$prefix/symref$SQ: there is a non-empty directory $SQ.git/$prefix/foo$SQ blocking reference $SQ$prefix/foo$SQ |
| EOF |
| printf "%s\n" "update $prefix/symref $C" | |
| test_must_fail git update-ref --stdin 2>output.err && |
| test_cmp expected output.err && |
| cat >expected <<-EOF && |
| fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ |
| EOF |
| printf "%s\n" "update $prefix/symref $D $C" | |
| test_must_fail git update-ref --stdin 2>output.err && |
| test_cmp expected output.err |
| ' |
| |
| test_expect_success 'broken reference blocks indirect create' ' |
| prefix=refs/broken-indirect-create && |
| git symbolic-ref $prefix/symref $prefix/foo && |
| echo "gobbledigook" >.git/$prefix/foo && |
| test_when_finished "rm -f .git/$prefix/foo" && |
| cat >expected <<-EOF && |
| fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken |
| EOF |
| printf "%s\n" "update $prefix/symref $C" | |
| test_must_fail git update-ref --stdin 2>output.err && |
| test_cmp expected output.err && |
| cat >expected <<-EOF && |
| fatal: cannot lock ref $SQ$prefix/symref$SQ: unable to resolve reference $SQ$prefix/foo$SQ: reference broken |
| EOF |
| printf "%s\n" "update $prefix/symref $D $C" | |
| test_must_fail git update-ref --stdin 2>output.err && |
| test_cmp expected output.err |
| ' |
| |
| test_expect_success 'no bogus intermediate values during delete' ' |
| prefix=refs/slow-transaction && |
| # Set up a reference with differing loose and packed versions: |
| git update-ref $prefix/foo $C && |
| git pack-refs --all && |
| git update-ref $prefix/foo $D && |
| # Now try to update the reference, but hold the `packed-refs` lock |
| # for a while to see what happens while the process is blocked: |
| : >.git/packed-refs.lock && |
| test_when_finished "rm -f .git/packed-refs.lock" && |
| { |
| # Note: the following command is intentionally run in the |
| # background. We increase the timeout so that `update-ref` |
| # attempts to acquire the `packed-refs` lock for much longer |
| # than it takes for us to do the check then delete it: |
| git -c core.packedrefstimeout=30000 update-ref -d $prefix/foo & |
| } && |
| pid2=$! && |
| # Give update-ref plenty of time to get to the point where it tries |
| # to lock packed-refs: |
| sleep 1 && |
| # Make sure that update-ref did not complete despite the lock: |
| kill -0 $pid2 && |
| # Verify that the reference still has its old value: |
| sha1=$(git rev-parse --verify --quiet $prefix/foo || echo undefined) && |
| case "$sha1" in |
| $D) |
| # This is what we hope for; it means that nothing |
| # user-visible has changed yet. |
| : ;; |
| undefined) |
| # This is not correct; it means the deletion has happened |
| # already even though update-ref should not have been |
| # able to acquire the lock yet. |
| echo "$prefix/foo deleted prematurely" && |
| break |
| ;; |
| $C) |
| # This value should never be seen. Probably the loose |
| # reference has been deleted but the packed reference |
| # is still there: |
| echo "$prefix/foo incorrectly observed to be C" && |
| break |
| ;; |
| *) |
| # WTF? |
| echo "unexpected value observed for $prefix/foo: $sha1" && |
| break |
| ;; |
| esac >out && |
| rm -f .git/packed-refs.lock && |
| wait $pid2 && |
| test_must_be_empty out && |
| test_must_fail git rev-parse --verify --quiet $prefix/foo |
| ' |
| |
| test_expect_success 'delete fails cleanly if packed-refs file is locked' ' |
| prefix=refs/locked-packed-refs && |
| # Set up a reference with differing loose and packed versions: |
| git update-ref $prefix/foo $C && |
| git pack-refs --all && |
| git update-ref $prefix/foo $D && |
| git for-each-ref $prefix >unchanged && |
| # Now try to delete it while the `packed-refs` lock is held: |
| : >.git/packed-refs.lock && |
| test_when_finished "rm -f .git/packed-refs.lock" && |
| test_must_fail git update-ref -d $prefix/foo >out 2>err && |
| git for-each-ref $prefix >actual && |
| test_grep "Unable to create $SQ.*packed-refs.lock$SQ: " err && |
| test_cmp unchanged actual |
| ' |
| |
| test_expect_success 'delete fails cleanly if packed-refs.new write fails' ' |
| # Setup and expectations are similar to the test above. |
| prefix=refs/failed-packed-refs && |
| git update-ref $prefix/foo $C && |
| git pack-refs --all && |
| git update-ref $prefix/foo $D && |
| git for-each-ref $prefix >unchanged && |
| # This should not happen in practice, but it is an easy way to get a |
| # reliable error (we open with create_tempfile(), which uses O_EXCL). |
| : >.git/packed-refs.new && |
| test_when_finished "rm -f .git/packed-refs.new" && |
| test_must_fail git update-ref -d $prefix/foo && |
| git for-each-ref $prefix >actual && |
| test_cmp unchanged actual |
| ' |
| |
| RWT="test-tool ref-store worktree:wt" |
| RMAIN="test-tool ref-store worktree:main" |
| |
| test_expect_success 'setup worktree' ' |
| test_commit first && |
| git worktree add -b wt-main wt && |
| ( |
| cd wt && |
| test_commit second |
| ) |
| ' |
| |
| # Some refs (refs/bisect/*, pseudorefs) are kept per worktree, so they should |
| # only appear in the for-each-reflog output if it is called from the correct |
| # worktree, which is exercised in this test. This test is poorly written for |
| # mulitple reasons: 1) it creates invalidly formatted log entres. 2) it uses |
| # direct FS access for creating the reflogs. 3) PSEUDO-WT and refs/bisect/random |
| # do not create reflogs by default, so it is not testing a realistic scenario. |
| test_expect_success 'for_each_reflog()' ' |
| echo $ZERO_OID >.git/logs/PSEUDO_MAIN_HEAD && |
| mkdir -p .git/logs/refs/bisect && |
| echo $ZERO_OID >.git/logs/refs/bisect/random && |
| |
| echo $ZERO_OID >.git/worktrees/wt/logs/PSEUDO_WT_HEAD && |
| mkdir -p .git/worktrees/wt/logs/refs/bisect && |
| echo $ZERO_OID >.git/worktrees/wt/logs/refs/bisect/wt-random && |
| |
| $RWT for-each-reflog >actual && |
| cat >expected <<-\EOF && |
| HEAD |
| PSEUDO_WT_HEAD |
| refs/bisect/wt-random |
| refs/heads/main |
| refs/heads/wt-main |
| EOF |
| test_cmp expected actual && |
| |
| $RMAIN for-each-reflog >actual && |
| cat >expected <<-\EOF && |
| HEAD |
| PSEUDO_MAIN_HEAD |
| refs/bisect/random |
| refs/heads/main |
| refs/heads/wt-main |
| EOF |
| test_cmp expected actual |
| ' |
| |
| # Triggering the bug detected by this test requires a newline to fall |
| # exactly BUFSIZ-1 bytes from the end of the file. We don't know |
| # what that value is, since it's platform dependent. However, if |
| # we choose some value N, we also catch any D which divides N evenly |
| # (since we will read backwards in chunks of D). So we choose 8K, |
| # which catches glibc (with an 8K BUFSIZ) and *BSD (1K). |
| # |
| # Each line is 114 characters, so we need 75 to still have a few before the |
| # last 8K. The 89-character padding on the final entry lines up our |
| # newline exactly. |
| test_expect_success SHA1 'parsing reverse reflogs at BUFSIZ boundaries' ' |
| git checkout -b reflogskip && |
| zf=$(test_oid zero_2) && |
| ident="abc <xyz> 0000000001 +0000" && |
| for i in $(test_seq 1 75); do |
| printf "$zf%02d $zf%02d %s\t" $i $(($i+1)) "$ident" && |
| if test $i = 75; then |
| for j in $(test_seq 1 89); do |
| printf X || return 1 |
| done |
| else |
| printf X |
| fi && |
| printf "\n" || return 1 |
| done >.git/logs/refs/heads/reflogskip && |
| git rev-parse reflogskip@{73} >actual && |
| echo ${zf}03 >expect && |
| test_cmp expect actual |
| ' |
| |
| # This test takes a lock on an individual ref; this is not supported in |
| # reftable. |
| test_expect_success 'reflog expire operates on symref not referrent' ' |
| git branch --create-reflog the_symref && |
| git branch --create-reflog referrent && |
| git update-ref referrent HEAD && |
| git symbolic-ref refs/heads/the_symref refs/heads/referrent && |
| test_when_finished "rm -f .git/refs/heads/referrent.lock" && |
| touch .git/refs/heads/referrent.lock && |
| git reflog expire --expire=all the_symref |
| ' |
| |
| test_expect_success 'empty reflog' ' |
| test_when_finished "rm -rf empty" && |
| git init empty && |
| test_commit -C empty A && |
| >empty/.git/logs/refs/heads/foo && |
| git -C empty reflog expire --all 2>err && |
| test_must_be_empty err |
| ' |
| |
| test_expect_success SYMLINKS 'ref resolution not confused by broken symlinks' ' |
| ln -s does-not-exist .git/refs/heads/broken && |
| test_must_fail git rev-parse --verify broken |
| ' |
| |
| test_expect_success 'log diagnoses bogus HEAD hash' ' |
| git init empty && |
| test_when_finished "rm -rf empty" && |
| echo 1234abcd >empty/.git/refs/heads/main && |
| test_must_fail git -C empty log 2>stderr && |
| test_grep broken stderr |
| ' |
| |
| test_expect_success 'log diagnoses bogus HEAD symref' ' |
| git init empty && |
| test-tool -C empty ref-store main create-symref HEAD refs/heads/invalid.lock && |
| test_must_fail git -C empty log 2>stderr && |
| test_grep broken stderr && |
| test_must_fail git -C empty log --default totally-bogus 2>stderr && |
| test_grep broken stderr |
| ' |
| |
| test_expect_success 'empty directory removal' ' |
| git branch d1/d2/r1 HEAD && |
| git branch d1/r2 HEAD && |
| test_path_is_file .git/refs/heads/d1/d2/r1 && |
| test_path_is_file .git/logs/refs/heads/d1/d2/r1 && |
| git branch -d d1/d2/r1 && |
| test_must_fail git show-ref --verify -q refs/heads/d1/d2 && |
| test_must_fail git show-ref --verify -q logs/refs/heads/d1/d2 && |
| test_path_is_file .git/refs/heads/d1/r2 && |
| test_path_is_file .git/logs/refs/heads/d1/r2 |
| ' |
| |
| test_expect_success 'symref empty directory removal' ' |
| git branch e1/e2/r1 HEAD && |
| git branch e1/r2 HEAD && |
| git checkout e1/e2/r1 && |
| test_when_finished "git checkout main" && |
| test_path_is_file .git/refs/heads/e1/e2/r1 && |
| test_path_is_file .git/logs/refs/heads/e1/e2/r1 && |
| git update-ref -d HEAD && |
| test_must_fail git show-ref --verify -q refs/heads/e1/e2 && |
| test_must_fail git show-ref --verify -q logs/refs/heads/e1/e2 && |
| test_path_is_file .git/refs/heads/e1/r2 && |
| test_path_is_file .git/logs/refs/heads/e1/r2 && |
| test_path_is_file .git/logs/HEAD |
| ' |
| |
| test_expect_success 'directory not created deleting packed ref' ' |
| git branch d1/d2/r1 HEAD && |
| git pack-refs --all && |
| test_path_is_missing .git/refs/heads/d1/d2 && |
| git update-ref -d refs/heads/d1/d2/r1 && |
| test_path_is_missing .git/refs/heads/d1/d2 && |
| test_path_is_missing .git/refs/heads/d1 |
| ' |
| |
| test_expect_success SYMLINKS 'git branch -m u v should fail when the reflog for u is a symlink' ' |
| git branch --create-reflog u && |
| mv .git/logs/refs/heads/u real-u && |
| ln -s real-u .git/logs/refs/heads/u && |
| test_must_fail git branch -m u v |
| ' |
| |
| test_expect_success SYMLINKS 'git branch -m with symlinked .git/refs' ' |
| test_when_finished "rm -rf subdir" && |
| git init --bare subdir && |
| |
| rm -rfv subdir/refs subdir/objects subdir/packed-refs && |
| ln -s ../.git/refs subdir/refs && |
| ln -s ../.git/objects subdir/objects && |
| ln -s ../.git/packed-refs subdir/packed-refs && |
| |
| git -C subdir rev-parse --absolute-git-dir >subdir.dir && |
| git rev-parse --absolute-git-dir >our.dir && |
| ! test_cmp subdir.dir our.dir && |
| |
| git -C subdir log && |
| git -C subdir branch rename-src && |
| git rev-parse rename-src >expect && |
| git -C subdir branch -m rename-src rename-dest && |
| git rev-parse rename-dest >actual && |
| test_cmp expect actual && |
| git branch -D rename-dest |
| ' |
| |
| test_expect_success MINGW,SYMLINKS_WINDOWS 'rebase when .git/logs is a symlink' ' |
| git checkout main && |
| mv .git/logs actual_logs && |
| cmd //c "mklink /D .git\logs ..\actual_logs" && |
| git rebase -f HEAD^ && |
| test -L .git/logs && |
| rm .git/logs && |
| mv actual_logs .git/logs |
| ' |
| |
| test_expect_success POSIXPERM 'git reflog expire honors core.sharedRepository' ' |
| umask 077 && |
| git config core.sharedRepository group && |
| git reflog expire --all && |
| actual="$(ls -l .git/logs/refs/heads/main)" && |
| case "$actual" in |
| -rw-rw-*) |
| : happy |
| ;; |
| *) |
| echo Ooops, .git/logs/refs/heads/main is not 066x [$actual] |
| false |
| ;; |
| esac |
| ' |
| |
| test_done |