git-commit-vandalism/t/t5703-upload-pack-ref-in-want.sh
Denton Liu 763b47bafa t5703: stop losing return codes of git commands
Currently, there are two ways where the return codes of git commands are
lost. The first way is when a command is in the upstream of a pipe. In a
pipe, only the return code of the last command is used. Thus, all other
commands will have their return codes masked. Rewrite pipes so that
there are no git commands upstream.

The other way is when a command is in a non-assignment command
substitution. The return code will be lost in favour of the surrounding
command's. Rewrite instances of this such that git commands are in an
assignment-only command substitution.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-29 13:20:15 -08:00

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#!/bin/sh
test_description='upload-pack ref-in-want'
. ./test-lib.sh
get_actual_refs () {
sed -n -e '/wanted-refs/,/0001/{
/wanted-refs/d
/0001/d
p
}' <out | test-tool pkt-line unpack >actual_refs
}
get_actual_commits () {
sed -n -e '/packfile/,/0000/{
/packfile/d
p
}' <out | test-tool pkt-line unpack-sideband >o.pack &&
git index-pack o.pack &&
git verify-pack -v o.idx >objs &&
grep commit objs | cut -c-40 | sort >actual_commits
}
check_output () {
get_actual_refs &&
test_cmp expected_refs actual_refs &&
get_actual_commits &&
sort expected_commits >sorted_commits &&
test_cmp sorted_commits actual_commits
}
# c(o/foo) d(o/bar)
# \ /
# b e(baz) f(master)
# \__ | __/
# \ | /
# a
test_expect_success 'setup repository' '
test_commit a &&
git checkout -b o/foo &&
test_commit b &&
test_commit c &&
git checkout -b o/bar b &&
test_commit d &&
git checkout -b baz a &&
test_commit e &&
git checkout master &&
test_commit f
'
test_expect_success 'config controls ref-in-want advertisement' '
test-tool serve-v2 --advertise-capabilities >out &&
! grep -a ref-in-want out &&
git config uploadpack.allowRefInWant false &&
test-tool serve-v2 --advertise-capabilities >out &&
! grep -a ref-in-want out &&
git config uploadpack.allowRefInWant true &&
test-tool serve-v2 --advertise-capabilities >out &&
grep -a ref-in-want out
'
test_expect_success 'invalid want-ref line' '
test-tool pkt-line pack >in <<-EOF &&
command=fetch
0001
no-progress
want-ref refs/heads/non-existent
done
0000
EOF
test_must_fail test-tool serve-v2 --stateless-rpc 2>out <in &&
grep "unknown ref" out
'
test_expect_success 'basic want-ref' '
oid=$(git rev-parse f) &&
cat >expected_refs <<-EOF &&
$oid refs/heads/master
EOF
git rev-parse f >expected_commits &&
oid=$(git rev-parse a) &&
test-tool pkt-line pack >in <<-EOF &&
command=fetch
0001
no-progress
want-ref refs/heads/master
have $oid
done
0000
EOF
test-tool serve-v2 --stateless-rpc >out <in &&
check_output
'
test_expect_success 'multiple want-ref lines' '
oid_c=$(git rev-parse c) &&
oid_d=$(git rev-parse d) &&
cat >expected_refs <<-EOF &&
$oid_c refs/heads/o/foo
$oid_d refs/heads/o/bar
EOF
git rev-parse c d >expected_commits &&
oid=$(git rev-parse b) &&
test-tool pkt-line pack >in <<-EOF &&
command=fetch
0001
no-progress
want-ref refs/heads/o/foo
want-ref refs/heads/o/bar
have $oid
done
0000
EOF
test-tool serve-v2 --stateless-rpc >out <in &&
check_output
'
test_expect_success 'mix want and want-ref' '
oid=$(git rev-parse f) &&
cat >expected_refs <<-EOF &&
$oid refs/heads/master
EOF
git rev-parse e f >expected_commits &&
test-tool pkt-line pack >in <<-EOF &&
command=fetch
0001
no-progress
want-ref refs/heads/master
want $(git rev-parse e)
have $(git rev-parse a)
done
0000
EOF
test-tool serve-v2 --stateless-rpc >out <in &&
check_output
'
test_expect_success 'want-ref with ref we already have commit for' '
oid=$(git rev-parse c) &&
cat >expected_refs <<-EOF &&
$oid refs/heads/o/foo
EOF
>expected_commits &&
oid=$(git rev-parse c) &&
test-tool pkt-line pack >in <<-EOF &&
command=fetch
0001
no-progress
want-ref refs/heads/o/foo
have $oid
done
0000
EOF
test-tool serve-v2 --stateless-rpc >out <in &&
check_output
'
REPO="$(pwd)/repo"
LOCAL_PRISTINE="$(pwd)/local_pristine"
# $REPO
# c(o/foo) d(o/bar)
# \ /
# b e(baz) f(master)
# \__ | __/
# \ | /
# a
#
# $LOCAL_PRISTINE
# s32(side)
# |
# .
# .
# |
# a(master)
test_expect_success 'setup repos for fetching with ref-in-want tests' '
(
git init "$REPO" &&
cd "$REPO" &&
test_commit a &&
# Local repo with many commits (so that negotiation will take
# more than 1 request/response pair)
rm -rf "$LOCAL_PRISTINE" &&
git clone "file://$REPO" "$LOCAL_PRISTINE" &&
cd "$LOCAL_PRISTINE" &&
git checkout -b side &&
test_commit_bulk --id=s 33 &&
# Add novel commits to upstream
git checkout master &&
cd "$REPO" &&
git checkout -b o/foo &&
test_commit b &&
test_commit c &&
git checkout -b o/bar b &&
test_commit d &&
git checkout -b baz a &&
test_commit e &&
git checkout master &&
test_commit f
) &&
git -C "$REPO" config uploadpack.allowRefInWant true &&
git -C "$LOCAL_PRISTINE" config protocol.version 2
'
test_expect_success 'fetching with exact OID' '
test_when_finished "rm -f log" &&
rm -rf local &&
cp -r "$LOCAL_PRISTINE" local &&
oid=$(git -C "$REPO" rev-parse d) &&
GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin \
"$oid":refs/heads/actual &&
git -C "$REPO" rev-parse "d" >expected &&
git -C local rev-parse refs/heads/actual >actual &&
test_cmp expected actual &&
grep "want $oid" log
'
test_expect_success 'fetching multiple refs' '
test_when_finished "rm -f log" &&
rm -rf local &&
cp -r "$LOCAL_PRISTINE" local &&
GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin master baz &&
git -C "$REPO" rev-parse "master" "baz" >expected &&
git -C local rev-parse refs/remotes/origin/master refs/remotes/origin/baz >actual &&
test_cmp expected actual &&
grep "want-ref refs/heads/master" log &&
grep "want-ref refs/heads/baz" log
'
test_expect_success 'fetching ref and exact OID' '
test_when_finished "rm -f log" &&
rm -rf local &&
cp -r "$LOCAL_PRISTINE" local &&
oid=$(git -C "$REPO" rev-parse b) &&
GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin \
master "$oid":refs/heads/actual &&
git -C "$REPO" rev-parse "master" "b" >expected &&
git -C local rev-parse refs/remotes/origin/master refs/heads/actual >actual &&
test_cmp expected actual &&
grep "want $oid" log &&
grep "want-ref refs/heads/master" log
'
test_expect_success 'fetching with wildcard that does not match any refs' '
test_when_finished "rm -f log" &&
rm -rf local &&
cp -r "$LOCAL_PRISTINE" local &&
git -C local fetch origin refs/heads/none*:refs/heads/* >out &&
test_must_be_empty out
'
test_expect_success 'fetching with wildcard that matches multiple refs' '
test_when_finished "rm -f log" &&
rm -rf local &&
cp -r "$LOCAL_PRISTINE" local &&
GIT_TRACE_PACKET="$(pwd)/log" git -C local fetch origin refs/heads/o*:refs/heads/o* &&
git -C "$REPO" rev-parse "o/foo" "o/bar" >expected &&
git -C local rev-parse "o/foo" "o/bar" >actual &&
test_cmp expected actual &&
grep "want-ref refs/heads/o/foo" log &&
grep "want-ref refs/heads/o/bar" log
'
. "$TEST_DIRECTORY"/lib-httpd.sh
start_httpd
REPO="$HTTPD_DOCUMENT_ROOT_PATH/repo"
LOCAL_PRISTINE="$(pwd)/local_pristine"
test_expect_success 'setup repos for change-while-negotiating test' '
(
git init "$REPO" &&
cd "$REPO" &&
>.git/git-daemon-export-ok &&
test_commit m1 &&
git tag -d m1 &&
# Local repo with many commits (so that negotiation will take
# more than 1 request/response pair)
rm -rf "$LOCAL_PRISTINE" &&
git clone "http://127.0.0.1:$LIB_HTTPD_PORT/smart/repo" "$LOCAL_PRISTINE" &&
cd "$LOCAL_PRISTINE" &&
git checkout -b side &&
test_commit_bulk --id=s 33 &&
# Add novel commits to upstream
git checkout master &&
cd "$REPO" &&
test_commit m2 &&
test_commit m3 &&
git tag -d m2 m3
) &&
git -C "$LOCAL_PRISTINE" remote set-url origin "http://127.0.0.1:$LIB_HTTPD_PORT/one_time_sed/repo" &&
git -C "$LOCAL_PRISTINE" config protocol.version 2
'
inconsistency () {
# Simulate that the server initially reports $2 as the ref
# corresponding to $1, and after that, $1 as the ref corresponding to
# $1. This corresponds to the real-life situation where the server's
# repository appears to change during negotiation, for example, when
# different servers in a load-balancing arrangement serve (stateless)
# RPCs during a single negotiation.
oid1=$(git -C "$REPO" rev-parse $1) &&
oid2=$(git -C "$REPO" rev-parse $2) &&
echo "s/$oid1/$oid2/" >"$HTTPD_ROOT_PATH/one-time-sed"
}
test_expect_success 'server is initially ahead - no ref in want' '
git -C "$REPO" config uploadpack.allowRefInWant false &&
rm -rf local &&
cp -r "$LOCAL_PRISTINE" local &&
inconsistency master 1234567890123456789012345678901234567890 &&
test_must_fail git -C local fetch 2>err &&
test_i18ngrep "fatal: remote error: upload-pack: not our ref" err
'
test_expect_success 'server is initially ahead - ref in want' '
git -C "$REPO" config uploadpack.allowRefInWant true &&
rm -rf local &&
cp -r "$LOCAL_PRISTINE" local &&
inconsistency master 1234567890123456789012345678901234567890 &&
git -C local fetch &&
git -C "$REPO" rev-parse --verify master >expected &&
git -C local rev-parse --verify refs/remotes/origin/master >actual &&
test_cmp expected actual
'
test_expect_success 'server is initially behind - no ref in want' '
git -C "$REPO" config uploadpack.allowRefInWant false &&
rm -rf local &&
cp -r "$LOCAL_PRISTINE" local &&
inconsistency master "master^" &&
git -C local fetch &&
git -C "$REPO" rev-parse --verify "master^" >expected &&
git -C local rev-parse --verify refs/remotes/origin/master >actual &&
test_cmp expected actual
'
test_expect_success 'server is initially behind - ref in want' '
git -C "$REPO" config uploadpack.allowRefInWant true &&
rm -rf local &&
cp -r "$LOCAL_PRISTINE" local &&
inconsistency master "master^" &&
git -C local fetch &&
git -C "$REPO" rev-parse --verify "master" >expected &&
git -C local rev-parse --verify refs/remotes/origin/master >actual &&
test_cmp expected actual
'
test_expect_success 'server loses a ref - ref in want' '
git -C "$REPO" config uploadpack.allowRefInWant true &&
rm -rf local &&
cp -r "$LOCAL_PRISTINE" local &&
echo "s/master/raster/" >"$HTTPD_ROOT_PATH/one-time-sed" &&
test_must_fail git -C local fetch 2>err &&
test_i18ngrep "fatal: remote error: unknown ref refs/heads/raster" err
'
# DO NOT add non-httpd-specific tests here, because the last part of this
# test script is only executed when httpd is available and enabled.
test_done