git/t/t5606-clone-options.sh
Li Linchao 4fe788b1b0 builtin/clone.c: add --reject-shallow option
In some scenarios, users may want more history than the repository
offered for cloning, which happens to be a shallow repository, can
give them. But because users don't know it is a shallow repository
until they download it to local, we may want to refuse to clone
this kind of repository, without creating any unnecessary files.

The '--depth=x' option cannot be used as a solution; the source may
be deep enough to give us 'x' commits when cloned, but the user may
later need to deepen the history to arbitrary depth.

Teach '--reject-shallow' option to "git clone" to abort as soon as
we find out that we are cloning from a shallow repository.

Signed-off-by: Li Linchao <lilinchao@oschina.cn>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-04-01 12:58:58 -07:00

169 lines
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Executable file

#!/bin/sh
test_description='basic clone options'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
. ./test-lib.sh
test_expect_success 'setup' '
mkdir parent &&
(cd parent && git init &&
echo one >file && git add file &&
git commit -m one) &&
git clone --depth=1 --no-local parent shallow-repo
'
test_expect_success 'clone -o' '
git clone -o foo parent clone-o &&
git -C clone-o rev-parse --verify refs/remotes/foo/main
'
test_expect_success 'rejects invalid -o/--origin' '
test_must_fail git clone -o "bad...name" parent clone-bad-name 2>err &&
test_i18ngrep "'\''bad...name'\'' is not a valid remote name" err
'
test_expect_success 'disallows --bare with --origin' '
test_must_fail git clone -o foo --bare parent clone-bare-o 2>err &&
test_debug "cat err" &&
test_i18ngrep -e "--bare and --origin foo options are incompatible" err
'
test_expect_success 'disallows --bare with --separate-git-dir' '
test_must_fail git clone --bare --separate-git-dir dot-git-destiation parent clone-bare-sgd 2>err &&
test_debug "cat err" &&
test_i18ngrep -e "--bare and --separate-git-dir are incompatible" err
'
test_expect_success 'reject cloning shallow repository' '
test_when_finished "rm -rf repo" &&
test_must_fail git clone --reject-shallow shallow-repo out 2>err &&
test_i18ngrep -e "source repository is shallow, reject to clone." err &&
git clone --no-reject-shallow shallow-repo repo
'
test_expect_success 'reject cloning non-local shallow repository' '
test_when_finished "rm -rf repo" &&
test_must_fail git clone --reject-shallow --no-local shallow-repo out 2>err &&
test_i18ngrep -e "source repository is shallow, reject to clone." err &&
git clone --no-reject-shallow --no-local shallow-repo repo
'
test_expect_success 'succeed cloning normal repository' '
test_when_finished "rm -rf chilad1 child2 child3 child4 " &&
git clone --reject-shallow parent child1 &&
git clone --reject-shallow --no-local parent child2 &&
git clone --no-reject-shallow parent child3 &&
git clone --no-reject-shallow --no-local parent child4
'
test_expect_success 'uses "origin" for default remote name' '
git clone parent clone-default-origin &&
git -C clone-default-origin rev-parse --verify refs/remotes/origin/main
'
test_expect_success 'prefers --template config over normal config' '
template="$TRASH_DIRECTORY/template-with-config" &&
mkdir "$template" &&
git config --file "$template/config" foo.bar from_template &&
test_config_global foo.bar from_global &&
git clone "--template=$template" parent clone-template-config &&
test "$(git -C clone-template-config config --local foo.bar)" = "from_template"
'
test_expect_success 'prefers -c config over --template config' '
template="$TRASH_DIRECTORY/template-with-ignored-config" &&
mkdir "$template" &&
git config --file "$template/config" foo.bar from_template &&
git clone "--template=$template" -c foo.bar=inline parent clone-template-inline-config &&
test "$(git -C clone-template-inline-config config --local foo.bar)" = "inline"
'
test_expect_success 'prefers config "clone.defaultRemoteName" over default' '
test_config_global clone.defaultRemoteName from_config &&
git clone parent clone-config-origin &&
git -C clone-config-origin rev-parse --verify refs/remotes/from_config/main
'
test_expect_success 'prefers --origin over -c config' '
git clone -c clone.defaultRemoteName=inline --origin from_option parent clone-o-and-inline-config &&
git -C clone-o-and-inline-config rev-parse --verify refs/remotes/from_option/main
'
test_expect_success 'redirected clone does not show progress' '
git clone "file://$(pwd)/parent" clone-redirected >out 2>err &&
! grep % err &&
test_i18ngrep ! "Checking connectivity" err
'
test_expect_success 'redirected clone -v does show progress' '
git clone --progress "file://$(pwd)/parent" clone-redirected-progress \
>out 2>err &&
grep % err
'
test_expect_success 'clone does not segfault with --bare and core.bare=false' '
test_config_global core.bare false &&
git clone --bare parent clone-bare &&
echo true >expect &&
git -C clone-bare rev-parse --is-bare-repository >actual &&
test_cmp expect actual
'
test_expect_success 'chooses correct default initial branch name' '
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME= \
git -c init.defaultBranch=foo init --bare empty &&
test_config -C empty lsrefs.unborn advertise &&
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME= \
git -c init.defaultBranch=up -c protocol.version=2 clone empty whats-up &&
test refs/heads/foo = $(git -C whats-up symbolic-ref HEAD) &&
test refs/heads/foo = $(git -C whats-up config branch.foo.merge)
'
test_expect_success 'guesses initial branch name correctly' '
git init --initial-branch=guess initial-branch &&
test_commit -C initial-branch no-spoilers &&
git -C initial-branch branch abc guess &&
git clone initial-branch is-it &&
test refs/heads/guess = $(git -C is-it symbolic-ref HEAD) &&
git -c init.defaultBranch=none init --bare no-head &&
git -C initial-branch push ../no-head guess abc &&
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME= \
git clone no-head is-it2 &&
test_must_fail git -C is-it2 symbolic-ref refs/remotes/origin/HEAD &&
git -C no-head update-ref --no-deref HEAD refs/heads/guess &&
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME= \
git -c init.defaultBranch=guess clone no-head is-it3 &&
test refs/remotes/origin/guess = \
$(git -C is-it3 symbolic-ref refs/remotes/origin/HEAD)
'
test_done