#!/bin/sh
# Copyright (c) 2020, Jacob Keller.
test_description='"git fetch" with negative refspecs.
'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success setup '
echo >file original &&
git add file &&
git commit -a -m original
'
test_expect_success "clone and setup child repos" '
git clone . one &&
(
cd one &&
echo >file updated by one &&
git commit -a -m "updated by one" &&
git switch -c alternate &&
echo >file updated again by one &&
git commit -a -m "updated by one again" &&
git switch main
) &&
git clone . two &&
(
cd two &&
git config branch.main.remote one &&
git config remote.one.url ../one/.git/ &&
git config remote.one.fetch +refs/heads/*:refs/remotes/one/* &&
git config --add remote.one.fetch ^refs/heads/alternate
) &&
git clone . three
'
test_expect_success "fetch one" '
echo >file updated by origin &&
git commit -a -m "updated by origin" &&
(
cd two &&
test_must_fail git rev-parse --verify refs/remotes/one/alternate &&
git fetch one &&
test_must_fail git rev-parse --verify refs/remotes/one/alternate &&
git rev-parse --verify refs/remotes/one/main &&
mine=$(git rev-parse refs/remotes/one/main) &&
his=$(cd ../one && git rev-parse refs/heads/main) &&
test "z$mine" = "z$his"
)
'
test_expect_success "fetch with negative refspec on commandline" '
echo >file updated by origin again &&
git commit -a -m "updated by origin again" &&
(
cd three &&
alternate_in_one=$(cd ../one && git rev-parse refs/heads/alternate) &&
echo $alternate_in_one >expect &&
git fetch ../one/.git refs/heads/*:refs/remotes/one/* ^refs/heads/main &&
cut -f -1 .git/FETCH_HEAD >actual &&
test_cmp expect actual
)
'
test_expect_success "fetch with negative sha1 refspec fails" '
echo >file updated by origin yet again &&
git commit -a -m "updated by origin yet again" &&
(
cd three &&
main_in_one=$(cd ../one && git rev-parse refs/heads/main) &&
test_must_fail git fetch ../one/.git refs/heads/*:refs/remotes/one/* ^$main_in_one
)
'
test_expect_success "fetch with negative pattern refspec" '
echo >file updated by origin once more &&
git commit -a -m "updated by origin once more" &&
(
cd three &&
alternate_in_one=$(cd ../one && git rev-parse refs/heads/alternate) &&
echo $alternate_in_one >expect &&
git fetch ../one/.git refs/heads/*:refs/remotes/one/* ^refs/heads/m* &&
cut -f -1 .git/FETCH_HEAD >actual &&
test_cmp expect actual
)
'
test_expect_success "fetch with negative pattern refspec does not expand prefix" '
echo >file updated by origin another time &&
git commit -a -m "updated by origin another time" &&
(
cd three &&
alternate_in_one=$(cd ../one && git rev-parse refs/heads/alternate) &&
main_in_one=$(cd ../one && git rev-parse refs/heads/main) &&
echo $alternate_in_one >expect &&
echo $main_in_one >>expect &&
git fetch ../one/.git refs/heads/*:refs/remotes/one/* ^main &&
cut -f -1 .git/FETCH_HEAD >actual &&
test_cmp expect actual
)
'
test_expect_success "fetch with negative refspec avoids duplicate conflict" '
(
cd one &&
git branch dups/a &&
git branch dups/b &&
git branch dups/c &&
git branch other/a &&
git rev-parse --verify refs/heads/other/a >../expect &&
git rev-parse --verify refs/heads/dups/b >>../expect &&
git rev-parse --verify refs/heads/dups/c >>../expect
) &&
(
cd three &&
git fetch ../one/.git ^refs/heads/dups/a refs/heads/dups/*:refs/dups/* refs/heads/other/a:refs/dups/a &&
git rev-parse --verify refs/dups/a >../actual &&
git rev-parse --verify refs/dups/b >>../actual &&
git rev-parse --verify refs/dups/c >>../actual
) &&
test_cmp expect actual
'
test_expect_success "push --prune with negative refspec" '
(
cd two &&
git branch prune/a &&
git branch prune/b &&
git branch prune/c &&
git push ../three refs/heads/prune/* &&
git branch -d prune/a &&
git branch -d prune/b &&
git push --prune ../three refs/heads/prune/* ^refs/heads/prune/b
) &&
(
cd three &&
test_write_lines b c >expect &&
git for-each-ref --format="%(refname:lstrip=3)" refs/heads/prune/ >actual &&
test_cmp expect actual
)
'
test_expect_success "push --prune with negative refspec apply to the destination" '
(
cd two &&
git branch ours/a &&
git branch ours/b &&
git branch ours/c &&
git push ../three refs/heads/ours/*:refs/heads/theirs/* &&
git branch -d ours/a &&
git branch -d ours/b &&
git push --prune ../three refs/heads/ours/*:refs/heads/theirs/* ^refs/heads/theirs/b
) &&
(
cd three &&
test_write_lines b c >expect &&
git for-each-ref --format="%(refname:lstrip=3)" refs/heads/theirs/ >actual &&
test_cmp expect actual
)
'
test_expect_success "fetch --prune with negative refspec" '
(
cd two &&
git branch fetch/a &&
git branch fetch/b &&
git branch fetch/c
) &&
(
cd three &&
git fetch ../two/.git refs/heads/fetch/*:refs/heads/copied/*
) &&
(
cd two &&
git branch -d fetch/a &&
git branch -d fetch/b
) &&
(
cd three &&
test_write_lines b c >expect &&
git fetch -v ../two/.git --prune refs/heads/fetch/*:refs/heads/copied/* ^refs/heads/fetch/b &&
git for-each-ref --format="%(refname:lstrip=3)" refs/heads/copied/ >actual &&
test_cmp expect actual
)
'
test_expect_success "push with matching : and negative refspec" '
# Manually handle cleanup, since test_config is not
# prepared to take arbitrary options like --add
test_when_finished "test_unconfig -C two remote.one.push" &&
# For convenience, we use "master" to refer to the name of
# the branch created by default in the following.
#
# Repositories two and one have branches other than "master"
# but they have no overlap---"master" is the only one that
# is shared between them. And the master branch at two is
# behind the master branch at one by one commit.
git -C two config --add remote.one.push : &&
# A matching push tries to update master, fails due to non-ff
test_must_fail git -C two push one &&
# "master" may actually not be "master"---find it out.
current=$(git symbolic-ref HEAD) &&
# If master is in negative refspec, then the command will not attempt
# to push and succeed.
git -C two config --add remote.one.push "^$current" &&
# With "master" excluded, this push is a no-op. Nothing gets
# pushed and it succeeds.
git -C two push -v one
'
test_expect_success "push with matching +: and negative refspec" '
test_when_finished "test_unconfig -C two remote.one.push" &&
# The same set-up as above, whose side-effect was a no-op.
git -C two config --add remote.one.push +: &&
# The push refuses to update the "master" branch that is checked
# out in the "one" repository, even when it is forced with +:
test_must_fail git -C two push one &&
# "master" may actually not be "master"---find it out.
current=$(git symbolic-ref HEAD) &&
# If master is in negative refspec, then the command will not attempt
# to push and succeed
git -C two config --add remote.one.push "^$current" &&
# With "master" excluded, this push is a no-op. Nothing gets
# pushed and it succeeds.
git -C two push -v one
'
test_expect_success '--prefetch correctly modifies refspecs' '
git -C one config --unset-all remote.origin.fetch &&
git -C one config --add remote.origin.fetch ^refs/heads/bogus/ignore &&
git -C one config --add remote.origin.fetch "refs/tags/*:refs/tags/*" &&
git -C one config --add remote.origin.fetch "refs/heads/bogus/*:bogus/*" &&
git tag -a -m never never-fetch-tag HEAD &&
git branch bogus/fetched HEAD~1 &&
git branch bogus/ignore HEAD &&
git -C one fetch --prefetch --no-tags &&
test_must_fail git -C one rev-parse never-fetch-tag &&
git -C one rev-parse refs/prefetch/bogus/fetched &&
test_must_fail git -C one rev-parse refs/prefetch/bogus/ignore &&
# correctly handle when refspec set becomes empty
# after removing the refs/tags/* refspec.
git -C one config --unset-all remote.origin.fetch &&
git -C one config --add remote.origin.fetch "refs/tags/*:refs/tags/*" &&
git -C one fetch --prefetch --no-tags &&
test_must_fail git -C one rev-parse never-fetch-tag &&
# The refspec for refs that are not fully qualified
# are filtered multiple times.
git -C one rev-parse refs/prefetch/bogus/fetched &&
test_must_fail git -C one rev-parse refs/prefetch/bogus/ignore
'
test_expect_success '--prefetch succeeds when refspec becomes empty' '
git checkout bogus/fetched &&
test_commit extra &&
git -C one config --unset-all remote.origin.fetch &&
git -C one config --unset branch.main.remote &&
git -C one config remote.origin.fetch "+refs/tags/extra" &&
git -C one config remote.origin.skipfetchall true &&
git -C one config remote.origin.tagopt "--no-tags" &&
git -C one fetch --prefetch
'
test_done
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