mirror of
https://github.com/git/git.git
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661558f0a5
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
622 lines
19 KiB
Bash
Executable File
622 lines
19 KiB
Bash
Executable File
#!/bin/sh
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test_description='Test git update-ref error handling'
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. ./test-lib.sh
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# Create some references, perhaps run pack-refs --all, then try to
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# create some more references. Ensure that the second creation fails
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# with the correct error message.
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# Usage: test_update_rejected <before> <pack> <create> <error>
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# <before> is a ws-separated list of refs to create before the test
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# <pack> (true or false) tells whether to pack the refs before the test
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# <create> is a list of variables to attempt creating
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# <error> is a string to look for in the stderr of update-ref.
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# All references are created in the namespace specified by the current
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# value of $prefix.
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test_update_rejected () {
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before="$1" &&
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pack="$2" &&
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create="$3" &&
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error="$4" &&
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printf "create $prefix/%s $C\n" $before |
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git update-ref --stdin &&
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git for-each-ref $prefix >unchanged &&
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if $pack
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then
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git pack-refs --all
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fi &&
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printf "create $prefix/%s $C\n" $create >input &&
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test_must_fail git update-ref --stdin <input 2>output.err &&
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test_i18ngrep -F "$error" output.err &&
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git for-each-ref $prefix >actual &&
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test_cmp unchanged actual
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}
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Q="'"
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# Test adding and deleting D/F-conflicting references in a single
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# transaction.
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df_test() {
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prefix="$1"
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pack=: symadd=false symdel=false add_del=false addref= delref=
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shift
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while test $# -gt 0
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do
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case "$1" in
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--pack)
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pack="git pack-refs --all"
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shift
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;;
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--sym-add)
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# Perform the add via a symbolic reference
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symadd=true
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shift
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;;
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--sym-del)
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# Perform the del via a symbolic reference
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symdel=true
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shift
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;;
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--del-add)
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# Delete first reference then add second
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add_del=false
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delref="$prefix/r/$2"
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addref="$prefix/r/$3"
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shift 3
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;;
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--add-del)
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# Add first reference then delete second
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add_del=true
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addref="$prefix/r/$2"
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delref="$prefix/r/$3"
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shift 3
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;;
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*)
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echo 1>&2 "Extra args to df_test: $*"
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return 1
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;;
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esac
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done
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git update-ref "$delref" $C &&
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if $symadd
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then
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addname="$prefix/s/symadd" &&
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git symbolic-ref "$addname" "$addref"
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else
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addname="$addref"
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fi &&
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if $symdel
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then
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delname="$prefix/s/symdel" &&
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git symbolic-ref "$delname" "$delref"
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else
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delname="$delref"
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fi &&
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cat >expected-err <<-EOF &&
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fatal: cannot lock ref $Q$addname$Q: $Q$delref$Q exists; cannot create $Q$addref$Q
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EOF
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$pack &&
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if $add_del
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then
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printf "%s\n" "create $addname $D" "delete $delname"
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else
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printf "%s\n" "delete $delname" "create $addname $D"
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fi >commands &&
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test_must_fail git update-ref --stdin <commands 2>output.err &&
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test_i18ncmp expected-err output.err &&
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printf "%s\n" "$C $delref" >expected-refs &&
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git for-each-ref --format="%(objectname) %(refname)" $prefix/r >actual-refs &&
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test_cmp expected-refs actual-refs
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}
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test_expect_success 'setup' '
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git commit --allow-empty -m Initial &&
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C=$(git rev-parse HEAD) &&
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git commit --allow-empty -m Second &&
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D=$(git rev-parse HEAD) &&
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git commit --allow-empty -m Third &&
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E=$(git rev-parse HEAD)
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'
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test_expect_success 'existing loose ref is a simple prefix of new' '
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prefix=refs/1l &&
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test_update_rejected "a c e" false "b c/x d" \
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"$Q$prefix/c$Q exists; cannot create $Q$prefix/c/x$Q"
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'
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test_expect_success 'existing packed ref is a simple prefix of new' '
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prefix=refs/1p &&
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test_update_rejected "a c e" true "b c/x d" \
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"$Q$prefix/c$Q exists; cannot create $Q$prefix/c/x$Q"
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'
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test_expect_success 'existing loose ref is a deeper prefix of new' '
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prefix=refs/2l &&
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test_update_rejected "a c e" false "b c/x/y d" \
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"$Q$prefix/c$Q exists; cannot create $Q$prefix/c/x/y$Q"
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'
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test_expect_success 'existing packed ref is a deeper prefix of new' '
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prefix=refs/2p &&
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test_update_rejected "a c e" true "b c/x/y d" \
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"$Q$prefix/c$Q exists; cannot create $Q$prefix/c/x/y$Q"
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'
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test_expect_success 'new ref is a simple prefix of existing loose' '
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prefix=refs/3l &&
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test_update_rejected "a c/x e" false "b c d" \
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"$Q$prefix/c/x$Q exists; cannot create $Q$prefix/c$Q"
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'
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test_expect_success 'new ref is a simple prefix of existing packed' '
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prefix=refs/3p &&
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test_update_rejected "a c/x e" true "b c d" \
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"$Q$prefix/c/x$Q exists; cannot create $Q$prefix/c$Q"
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'
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test_expect_success 'new ref is a deeper prefix of existing loose' '
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prefix=refs/4l &&
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test_update_rejected "a c/x/y e" false "b c d" \
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"$Q$prefix/c/x/y$Q exists; cannot create $Q$prefix/c$Q"
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'
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test_expect_success 'new ref is a deeper prefix of existing packed' '
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prefix=refs/4p &&
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test_update_rejected "a c/x/y e" true "b c d" \
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"$Q$prefix/c/x/y$Q exists; cannot create $Q$prefix/c$Q"
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'
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test_expect_success 'one new ref is a simple prefix of another' '
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prefix=refs/5 &&
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test_update_rejected "a e" false "b c c/x d" \
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"cannot process $Q$prefix/c$Q and $Q$prefix/c/x$Q at the same time"
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'
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test_expect_success 'empty directory should not fool rev-parse' '
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prefix=refs/e-rev-parse &&
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git update-ref $prefix/foo $C &&
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git pack-refs --all &&
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mkdir -p .git/$prefix/foo/bar/baz &&
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echo "$C" >expected &&
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git rev-parse $prefix/foo >actual &&
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test_cmp expected actual
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'
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test_expect_success 'empty directory should not fool for-each-ref' '
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prefix=refs/e-for-each-ref &&
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git update-ref $prefix/foo $C &&
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git for-each-ref $prefix >expected &&
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git pack-refs --all &&
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mkdir -p .git/$prefix/foo/bar/baz &&
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git for-each-ref $prefix >actual &&
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test_cmp expected actual
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'
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test_expect_success 'empty directory should not fool create' '
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prefix=refs/e-create &&
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mkdir -p .git/$prefix/foo/bar/baz &&
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printf "create %s $C\n" $prefix/foo |
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git update-ref --stdin
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'
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test_expect_success 'empty directory should not fool verify' '
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prefix=refs/e-verify &&
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git update-ref $prefix/foo $C &&
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git pack-refs --all &&
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mkdir -p .git/$prefix/foo/bar/baz &&
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printf "verify %s $C\n" $prefix/foo |
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git update-ref --stdin
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'
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test_expect_success 'empty directory should not fool 1-arg update' '
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prefix=refs/e-update-1 &&
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git update-ref $prefix/foo $C &&
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git pack-refs --all &&
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mkdir -p .git/$prefix/foo/bar/baz &&
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printf "update %s $D\n" $prefix/foo |
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git update-ref --stdin
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'
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test_expect_success 'empty directory should not fool 2-arg update' '
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prefix=refs/e-update-2 &&
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git update-ref $prefix/foo $C &&
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git pack-refs --all &&
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mkdir -p .git/$prefix/foo/bar/baz &&
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printf "update %s $D $C\n" $prefix/foo |
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git update-ref --stdin
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'
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test_expect_success 'empty directory should not fool 0-arg delete' '
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prefix=refs/e-delete-0 &&
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git update-ref $prefix/foo $C &&
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git pack-refs --all &&
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mkdir -p .git/$prefix/foo/bar/baz &&
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printf "delete %s\n" $prefix/foo |
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git update-ref --stdin
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'
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test_expect_success 'empty directory should not fool 1-arg delete' '
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prefix=refs/e-delete-1 &&
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git update-ref $prefix/foo $C &&
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git pack-refs --all &&
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mkdir -p .git/$prefix/foo/bar/baz &&
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printf "delete %s $C\n" $prefix/foo |
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git update-ref --stdin
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'
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test_expect_success 'D/F conflict prevents add long + delete short' '
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df_test refs/df-al-ds --add-del foo/bar foo
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'
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test_expect_success 'D/F conflict prevents add short + delete long' '
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df_test refs/df-as-dl --add-del foo foo/bar
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'
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test_expect_success 'D/F conflict prevents delete long + add short' '
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df_test refs/df-dl-as --del-add foo/bar foo
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'
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test_expect_success 'D/F conflict prevents delete short + add long' '
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df_test refs/df-ds-al --del-add foo foo/bar
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'
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test_expect_success 'D/F conflict prevents add long + delete short packed' '
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df_test refs/df-al-dsp --pack --add-del foo/bar foo
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'
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test_expect_success 'D/F conflict prevents add short + delete long packed' '
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df_test refs/df-as-dlp --pack --add-del foo foo/bar
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'
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test_expect_success 'D/F conflict prevents delete long packed + add short' '
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df_test refs/df-dlp-as --pack --del-add foo/bar foo
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'
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test_expect_success 'D/F conflict prevents delete short packed + add long' '
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df_test refs/df-dsp-al --pack --del-add foo foo/bar
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'
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# Try some combinations involving symbolic refs...
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test_expect_success 'D/F conflict prevents indirect add long + delete short' '
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df_test refs/df-ial-ds --sym-add --add-del foo/bar foo
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'
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test_expect_success 'D/F conflict prevents indirect add long + indirect delete short' '
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df_test refs/df-ial-ids --sym-add --sym-del --add-del foo/bar foo
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'
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test_expect_success 'D/F conflict prevents indirect add short + indirect delete long' '
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df_test refs/df-ias-idl --sym-add --sym-del --add-del foo foo/bar
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'
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test_expect_success 'D/F conflict prevents indirect delete long + indirect add short' '
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df_test refs/df-idl-ias --sym-add --sym-del --del-add foo/bar foo
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'
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test_expect_success 'D/F conflict prevents indirect add long + delete short packed' '
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df_test refs/df-ial-dsp --sym-add --pack --add-del foo/bar foo
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'
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test_expect_success 'D/F conflict prevents indirect add long + indirect delete short packed' '
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df_test refs/df-ial-idsp --sym-add --sym-del --pack --add-del foo/bar foo
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'
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test_expect_success 'D/F conflict prevents add long + indirect delete short packed' '
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df_test refs/df-al-idsp --sym-del --pack --add-del foo/bar foo
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'
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test_expect_success 'D/F conflict prevents indirect delete long packed + indirect add short' '
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df_test refs/df-idlp-ias --sym-add --sym-del --pack --del-add foo/bar foo
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'
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# Test various errors when reading the old values of references...
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test_expect_success 'missing old value blocks update' '
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prefix=refs/missing-update &&
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cat >expected <<-EOF &&
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fatal: cannot lock ref $Q$prefix/foo$Q: unable to resolve reference $Q$prefix/foo$Q
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EOF
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printf "%s\n" "update $prefix/foo $E $D" |
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test_must_fail git update-ref --stdin 2>output.err &&
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test_cmp expected output.err
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'
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test_expect_success 'incorrect old value blocks update' '
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prefix=refs/incorrect-update &&
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git update-ref $prefix/foo $C &&
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cat >expected <<-EOF &&
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fatal: cannot lock ref $Q$prefix/foo$Q: is at $C but expected $D
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EOF
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printf "%s\n" "update $prefix/foo $E $D" |
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test_must_fail git update-ref --stdin 2>output.err &&
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test_cmp expected output.err
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'
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test_expect_success 'existing old value blocks create' '
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prefix=refs/existing-create &&
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git update-ref $prefix/foo $C &&
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cat >expected <<-EOF &&
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fatal: cannot lock ref $Q$prefix/foo$Q: reference already exists
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EOF
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printf "%s\n" "create $prefix/foo $E" |
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test_must_fail git update-ref --stdin 2>output.err &&
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test_cmp expected output.err
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'
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test_expect_success 'incorrect old value blocks delete' '
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prefix=refs/incorrect-delete &&
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git update-ref $prefix/foo $C &&
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cat >expected <<-EOF &&
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fatal: cannot lock ref $Q$prefix/foo$Q: is at $C but expected $D
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EOF
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printf "%s\n" "delete $prefix/foo $D" |
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test_must_fail git update-ref --stdin 2>output.err &&
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test_cmp expected output.err
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'
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test_expect_success 'missing old value blocks indirect update' '
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prefix=refs/missing-indirect-update &&
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git symbolic-ref $prefix/symref $prefix/foo &&
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cat >expected <<-EOF &&
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fatal: cannot lock ref $Q$prefix/symref$Q: unable to resolve reference $Q$prefix/foo$Q
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EOF
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printf "%s\n" "update $prefix/symref $E $D" |
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test_must_fail git update-ref --stdin 2>output.err &&
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test_cmp expected output.err
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'
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test_expect_success 'incorrect old value blocks indirect update' '
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prefix=refs/incorrect-indirect-update &&
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git symbolic-ref $prefix/symref $prefix/foo &&
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git update-ref $prefix/foo $C &&
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cat >expected <<-EOF &&
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fatal: cannot lock ref $Q$prefix/symref$Q: is at $C but expected $D
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EOF
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printf "%s\n" "update $prefix/symref $E $D" |
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test_must_fail git update-ref --stdin 2>output.err &&
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test_cmp expected output.err
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'
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test_expect_success 'existing old value blocks indirect create' '
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prefix=refs/existing-indirect-create &&
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git symbolic-ref $prefix/symref $prefix/foo &&
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git update-ref $prefix/foo $C &&
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cat >expected <<-EOF &&
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fatal: cannot lock ref $Q$prefix/symref$Q: reference already exists
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EOF
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printf "%s\n" "create $prefix/symref $E" |
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test_must_fail git update-ref --stdin 2>output.err &&
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test_cmp expected output.err
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'
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test_expect_success 'incorrect old value blocks indirect delete' '
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prefix=refs/incorrect-indirect-delete &&
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git symbolic-ref $prefix/symref $prefix/foo &&
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git update-ref $prefix/foo $C &&
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cat >expected <<-EOF &&
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fatal: cannot lock ref $Q$prefix/symref$Q: is at $C but expected $D
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EOF
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printf "%s\n" "delete $prefix/symref $D" |
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test_must_fail git update-ref --stdin 2>output.err &&
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test_cmp expected output.err
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'
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test_expect_success 'missing old value blocks indirect no-deref update' '
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prefix=refs/missing-noderef-update &&
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git symbolic-ref $prefix/symref $prefix/foo &&
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cat >expected <<-EOF &&
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fatal: cannot lock ref $Q$prefix/symref$Q: reference is missing but expected $D
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EOF
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printf "%s\n" "option no-deref" "update $prefix/symref $E $D" |
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test_must_fail git update-ref --stdin 2>output.err &&
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test_cmp expected output.err
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'
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test_expect_success 'incorrect old value blocks indirect no-deref update' '
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prefix=refs/incorrect-noderef-update &&
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git symbolic-ref $prefix/symref $prefix/foo &&
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git update-ref $prefix/foo $C &&
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cat >expected <<-EOF &&
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fatal: cannot lock ref $Q$prefix/symref$Q: is at $C but expected $D
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EOF
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printf "%s\n" "option no-deref" "update $prefix/symref $E $D" |
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test_must_fail git update-ref --stdin 2>output.err &&
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test_cmp expected output.err
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'
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test_expect_success 'existing old value blocks indirect no-deref create' '
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prefix=refs/existing-noderef-create &&
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git symbolic-ref $prefix/symref $prefix/foo &&
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git update-ref $prefix/foo $C &&
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cat >expected <<-EOF &&
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fatal: cannot lock ref $Q$prefix/symref$Q: reference already exists
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EOF
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printf "%s\n" "option no-deref" "create $prefix/symref $E" |
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test_must_fail git update-ref --stdin 2>output.err &&
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test_cmp expected output.err
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'
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test_expect_success 'incorrect old value blocks indirect no-deref delete' '
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prefix=refs/incorrect-noderef-delete &&
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git symbolic-ref $prefix/symref $prefix/foo &&
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git update-ref $prefix/foo $C &&
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cat >expected <<-EOF &&
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fatal: cannot lock ref $Q$prefix/symref$Q: is at $C but expected $D
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EOF
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printf "%s\n" "option no-deref" "delete $prefix/symref $D" |
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test_must_fail git update-ref --stdin 2>output.err &&
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test_cmp expected output.err
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'
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test_expect_success 'non-empty directory blocks create' '
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prefix=refs/ne-create &&
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mkdir -p .git/$prefix/foo/bar &&
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: >.git/$prefix/foo/bar/baz.lock &&
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test_when_finished "rm -f .git/$prefix/foo/bar/baz.lock" &&
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cat >expected <<-EOF &&
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|
fatal: cannot lock ref $Q$prefix/foo$Q: there is a non-empty directory $Q.git/$prefix/foo$Q blocking reference $Q$prefix/foo$Q
|
|
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 $Q$prefix/foo$Q: unable to resolve reference $Q$prefix/foo$Q
|
|
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 $Q$prefix/foo$Q: unable to resolve reference $Q$prefix/foo$Q: 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 $Q$prefix/foo$Q: unable to resolve reference $Q$prefix/foo$Q: 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 $Q$prefix/symref$Q: there is a non-empty directory $Q.git/$prefix/foo$Q blocking reference $Q$prefix/foo$Q
|
|
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 $Q$prefix/symref$Q: unable to resolve reference $Q$prefix/foo$Q
|
|
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 $Q$prefix/symref$Q: unable to resolve reference $Q$prefix/foo$Q: 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 $Q$prefix/symref$Q: unable to resolve reference $Q$prefix/foo$Q: 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 &&
|
|
git for-each-ref $prefix >unchanged &&
|
|
# 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 longer than
|
|
# it takes for us to do the check then delete it:
|
|
git -c core.packedrefstimeout=3000 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_i18ngrep "Unable to create $Q.*packed-refs.lock$Q: File exists" err &&
|
|
test_cmp unchanged actual
|
|
'
|
|
|
|
test_done
|