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-rwxr-xr-xt/t5543-atomic-push.sh280
1 files changed, 280 insertions, 0 deletions
diff --git a/t/t5543-atomic-push.sh b/t/t5543-atomic-push.sh
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+#!/bin/sh
+
+test_description='pushing to a repository using the atomic push option'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+
+mk_repo_pair () {
+ rm -rf workbench upstream &&
+ test_create_repo upstream &&
+ test_create_repo workbench &&
+ (
+ cd upstream &&
+ git config receive.denyCurrentBranch warn
+ ) &&
+ (
+ cd workbench &&
+ git remote add up ../upstream
+ )
+}
+
+# Compare the ref ($1) in upstream with a ref value from workbench ($2)
+# i.e. test_refs second HEAD@{2}
+test_refs () {
+ test $# = 2 &&
+ git -C upstream rev-parse --verify "$1" >expect &&
+ git -C workbench rev-parse --verify "$2" >actual &&
+ test_cmp expect actual
+}
+
+fmt_status_report () {
+ sed -n \
+ -e "/^To / { s/ */ /g; p; }" \
+ -e "/^ ! / { s/ */ /g; p; }"
+}
+
+test_expect_success 'atomic push works for a single branch' '
+ mk_repo_pair &&
+ (
+ cd workbench &&
+ test_commit one &&
+ git push --mirror up &&
+ test_commit two &&
+ git push --atomic up main
+ ) &&
+ test_refs main main
+'
+
+test_expect_success 'atomic push works for two branches' '
+ mk_repo_pair &&
+ (
+ cd workbench &&
+ test_commit one &&
+ git branch second &&
+ git push --mirror up &&
+ test_commit two &&
+ git checkout second &&
+ test_commit three &&
+ git push --atomic up main second
+ ) &&
+ test_refs main main &&
+ test_refs second second
+'
+
+test_expect_success 'atomic push works in combination with --mirror' '
+ mk_repo_pair &&
+ (
+ cd workbench &&
+ test_commit one &&
+ git checkout -b second &&
+ test_commit two &&
+ git push --atomic --mirror up
+ ) &&
+ test_refs main main &&
+ test_refs second second
+'
+
+test_expect_success 'atomic push works in combination with --force' '
+ mk_repo_pair &&
+ (
+ cd workbench &&
+ test_commit one &&
+ git branch second main &&
+ test_commit two_a &&
+ git checkout second &&
+ test_commit two_b &&
+ test_commit three_b &&
+ test_commit four &&
+ git push --mirror up &&
+ # The actual test is below
+ git checkout main &&
+ test_commit three_a &&
+ git checkout second &&
+ git reset --hard HEAD^ &&
+ git push --force --atomic up main second
+ ) &&
+ test_refs main main &&
+ test_refs second second
+'
+
+# set up two branches where main can be pushed but second can not
+# (non-fast-forward). Since second can not be pushed the whole operation
+# will fail and leave main untouched.
+test_expect_success 'atomic push fails if one branch fails' '
+ mk_repo_pair &&
+ (
+ cd workbench &&
+ test_commit one &&
+ git checkout -b second main &&
+ test_commit two &&
+ test_commit three &&
+ test_commit four &&
+ git push --mirror up &&
+ git reset --hard HEAD~2 &&
+ test_commit five &&
+ git checkout main &&
+ test_commit six &&
+ test_must_fail git push --atomic --all up
+ ) &&
+ test_refs main HEAD@{7} &&
+ test_refs second HEAD@{4}
+'
+
+test_expect_success 'atomic push fails if one tag fails remotely' '
+ # prepare the repo
+ mk_repo_pair &&
+ (
+ cd workbench &&
+ test_commit one &&
+ git checkout -b second main &&
+ test_commit two &&
+ git push --mirror up
+ ) &&
+ # a third party modifies the server side:
+ (
+ cd upstream &&
+ git checkout second &&
+ git tag test_tag second
+ ) &&
+ # see if we can now push both branches.
+ (
+ cd workbench &&
+ git checkout main &&
+ test_commit three &&
+ git checkout second &&
+ test_commit four &&
+ git tag test_tag &&
+ test_must_fail git push --tags --atomic up main second
+ ) &&
+ test_refs main HEAD@{3} &&
+ test_refs second HEAD@{1}
+'
+
+test_expect_success 'atomic push obeys update hook preventing a branch to be pushed' '
+ mk_repo_pair &&
+ (
+ cd workbench &&
+ test_commit one &&
+ git checkout -b second main &&
+ test_commit two &&
+ git push --mirror up
+ ) &&
+ test_hook -C upstream update <<-\EOF &&
+ # only allow update to main from now on
+ test "$1" = "refs/heads/main"
+ EOF
+ (
+ cd workbench &&
+ git checkout main &&
+ test_commit three &&
+ git checkout second &&
+ test_commit four &&
+ test_must_fail git push --atomic up main second
+ ) &&
+ test_refs main HEAD@{3} &&
+ test_refs second HEAD@{1}
+'
+
+test_expect_success 'atomic push is not advertised if configured' '
+ mk_repo_pair &&
+ (
+ cd upstream &&
+ git config receive.advertiseatomic 0
+ ) &&
+ (
+ cd workbench &&
+ test_commit one &&
+ git push --mirror up &&
+ test_commit two &&
+ test_must_fail git push --atomic up main
+ ) &&
+ test_refs main HEAD@{1}
+'
+
+# References in upstream : main(1) one(1) foo(1)
+# References in workbench: main(2) foo(1) two(2) bar(2)
+# Atomic push : main(2) two(2) bar(2)
+test_expect_success 'atomic push reports (reject by update hook)' '
+ mk_repo_pair &&
+ (
+ cd workbench &&
+ test_commit one &&
+ git branch foo &&
+ git push up main one foo &&
+ git tag -d one
+ ) &&
+ (
+ mkdir -p upstream/.git/hooks &&
+ cat >upstream/.git/hooks/update <<-EOF &&
+ #!/bin/sh
+
+ if test "\$1" = "refs/heads/bar"
+ then
+ echo >&2 "Pusing to branch bar is prohibited"
+ exit 1
+ fi
+ EOF
+ chmod a+x upstream/.git/hooks/update
+ ) &&
+ (
+ cd workbench &&
+ test_commit two &&
+ git branch bar
+ ) &&
+ test_must_fail git -C workbench \
+ push --atomic up main two bar >out 2>&1 &&
+ fmt_status_report <out >actual &&
+ cat >expect <<-EOF &&
+ To ../upstream
+ ! [remote rejected] main -> main (atomic push failure)
+ ! [remote rejected] two -> two (atomic push failure)
+ ! [remote rejected] bar -> bar (hook declined)
+ EOF
+ test_cmp expect actual
+'
+
+# References in upstream : main(1) one(1) foo(1)
+# References in workbench: main(2) foo(1) two(2) bar(2)
+test_expect_success 'atomic push reports (mirror, but reject by update hook)' '
+ (
+ cd workbench &&
+ git remote remove up &&
+ git remote add up ../upstream
+ ) &&
+ test_must_fail git -C workbench \
+ push --atomic --mirror up >out 2>&1 &&
+ fmt_status_report <out >actual &&
+ cat >expect <<-EOF &&
+ To ../upstream
+ ! [remote rejected] main -> main (atomic push failure)
+ ! [remote rejected] one (atomic push failure)
+ ! [remote rejected] bar -> bar (hook declined)
+ ! [remote rejected] two -> two (atomic push failure)
+ EOF
+ test_cmp expect actual
+'
+
+# References in upstream : main(2) one(1) foo(1)
+# References in workbench: main(1) foo(1) two(2) bar(2)
+test_expect_success 'atomic push reports (reject by non-ff)' '
+ rm upstream/.git/hooks/update &&
+ (
+ cd workbench &&
+ git push up main &&
+ git reset --hard HEAD^
+ ) &&
+ test_must_fail git -C workbench \
+ push --atomic up main foo bar >out 2>&1 &&
+ fmt_status_report <out >actual &&
+ cat >expect <<-EOF &&
+ To ../upstream
+ ! [rejected] main -> main (non-fast-forward)
+ ! [rejected] bar -> bar (atomic push failed)
+ EOF
+ test_cmp expect actual
+'
+
+test_done