git/t/t6101-rev-parse-parents.sh

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#!/bin/sh
#
# Copyright (c) 2005 Johannes Schindelin
#
test_description='Test git rev-parse with different parent options'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
tests: mark tests relying on the current default for `init.defaultBranch` In addition to the manual adjustment to let the `linux-gcc` CI job run the test suite with `master` and then with `main`, this patch makes sure that GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME is set in all test scripts that currently rely on the initial branch name being `master by default. To determine which test scripts to mark up, the first step was to force-set the default branch name to `master` in - all test scripts that contain the keyword `master`, - t4211, which expects `t/t4211/history.export` with a hard-coded ref to initialize the default branch, - t5560 because it sources `t/t556x_common` which uses `master`, - t8002 and t8012 because both source `t/annotate-tests.sh` which also uses `master`) This trick was performed by this command: $ sed -i '/^ *\. \.\/\(test-lib\|lib-\(bash\|cvs\|git-svn\)\|gitweb-lib\)\.sh$/i\ GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master\ export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME\ ' $(git grep -l master t/t[0-9]*.sh) \ t/t4211*.sh t/t5560*.sh t/t8002*.sh t/t8012*.sh After that, careful, manual inspection revealed that some of the test scripts containing the needle `master` do not actually rely on a specific default branch name: either they mention `master` only in a comment, or they initialize that branch specificially, or they do not actually refer to the current default branch. Therefore, the aforementioned modification was undone in those test scripts thusly: $ git checkout HEAD -- \ t/t0027-auto-crlf.sh t/t0060-path-utils.sh \ t/t1011-read-tree-sparse-checkout.sh \ t/t1305-config-include.sh t/t1309-early-config.sh \ t/t1402-check-ref-format.sh t/t1450-fsck.sh \ t/t2024-checkout-dwim.sh \ t/t2106-update-index-assume-unchanged.sh \ t/t3040-subprojects-basic.sh t/t3301-notes.sh \ t/t3308-notes-merge.sh t/t3423-rebase-reword.sh \ t/t3436-rebase-more-options.sh \ t/t4015-diff-whitespace.sh t/t4257-am-interactive.sh \ t/t5323-pack-redundant.sh t/t5401-update-hooks.sh \ t/t5511-refspec.sh t/t5526-fetch-submodules.sh \ t/t5529-push-errors.sh t/t5530-upload-pack-error.sh \ t/t5548-push-porcelain.sh \ t/t5552-skipping-fetch-negotiator.sh \ t/t5572-pull-submodule.sh t/t5608-clone-2gb.sh \ t/t5614-clone-submodules-shallow.sh \ t/t7508-status.sh t/t7606-merge-custom.sh \ t/t9302-fast-import-unpack-limit.sh We excluded one set of test scripts in these commands, though: the range of `git p4` tests. The reason? `git p4` stores the (foreign) remote branch in the branch called `p4/master`, which is obviously not the default branch. Manual analysis revealed that only five of these tests actually require a specific default branch name to pass; They were modified thusly: $ sed -i '/^ *\. \.\/lib-git-p4\.sh$/i\ GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master\ export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME\ ' t/t980[0167]*.sh t/t9811*.sh Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-18 23:44:19 +00:00
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
2022-04-13 20:01:48 +00:00
TEST_PASSES_SANITIZE_LEAK=true
TEST_CREATE_REPO_NO_TEMPLATE=1
. ./test-lib.sh
test_cmp_rev_output () {
git rev-parse --verify "$1" >expect &&
eval "$2" >actual &&
test_cmp expect actual
}
test_expect_success 'setup' '
test_commit start &&
test_commit second &&
git checkout --orphan tmp &&
test_commit start2 &&
git checkout main &&
merge: refuse to create too cool a merge by default While it makes sense to allow merging unrelated histories of two projects that started independently into one, in the way "gitk" was merged to "git" itself aka "the coolest merge ever", such a merge is still an unusual event. Worse, if somebody creates an independent history by starting from a tarball of an established project and sends a pull request to the original project, "git merge" however happily creates such a merge without any sign of something unusual is happening. Teach "git merge" to refuse to create such a merge by default, unless the user passes a new "--allow-unrelated-histories" option to tell it that the user is aware that two unrelated projects are merged. Because such a "two project merge" is a rare event, a configuration option to always allow such a merge is not added. We could add the same option to "git pull" and have it passed through to underlying "git merge". I do not have a fundamental opposition against such a feature, but this commit does not do so and instead leaves it as low-hanging fruit for others, because such a "two project merge" would be done after fetching the other project into some location in the working tree of an existing project and making sure how well they fit together, it is sufficient to allow a local merge without such an option pass-through from "git pull" to "git merge". Many tests that are updated by this patch does the pass-through manually by turning: git pull something into its equivalent: git fetch something && git merge --allow-unrelated-histories FETCH_HEAD If somebody is inclined to add such an option, updated tests in this change need to be adjusted back to: git pull --allow-unrelated-histories something Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-18 20:21:09 +00:00
git merge -m next --allow-unrelated-histories start2 &&
test_commit final &&
mkdir .git/info &&
test_seq 40 |
while read i
do
git checkout --orphan "b$i" &&
test_tick &&
git commit --allow-empty -m "$i" &&
commit=$(git rev-parse --verify HEAD) &&
printf "$commit " >>.git/info/grafts || return 1
done
'
test_expect_success 'start is valid' '
git rev-parse start | grep "^$OID_REGEX$"
'
test_expect_success 'start^0' '
test_cmp_rev_output tags/start "git rev-parse start^0"
'
test_expect_success 'start^1 not valid' '
test_must_fail git rev-parse --verify start^1
'
test_expect_success 'second^1 = second^' '
test_cmp_rev_output second^ "git rev-parse second^1"
'
test_expect_success 'final^1^1^1' '
test_cmp_rev_output start "git rev-parse final^1^1^1"
'
test_expect_success 'final^1^1^1 = final^^^' '
test_cmp_rev_output final^^^ "git rev-parse final^1^1^1"
'
test_expect_success 'final^1^2' '
test_cmp_rev_output start2 "git rev-parse final^1^2"
'
test_expect_success 'final^1^2 != final^1^1' '
test $(git rev-parse final^1^2) != $(git rev-parse final^1^1)
'
test_expect_success 'final^1^3 not valid' '
test_must_fail git rev-parse --verify final^1^3
'
test_expect_success '--verify start2^1' '
test_must_fail git rev-parse --verify start2^1
'
test_expect_success '--verify start2^0' '
git rev-parse --verify start2^0
'
test_expect_success 'final^1^@ = final^1^1 final^1^2' '
git rev-parse final^1^1 final^1^2 >expect &&
git rev-parse final^1^@ >actual &&
test_cmp expect actual
'
test_expect_success 'symbolic final^1^@ = final^1^1 final^1^2' '
git rev-parse --symbolic final^1^1 final^1^2 >expect &&
git rev-parse --symbolic final^1^@ >actual &&
test_cmp expect actual
'
test_expect_success 'final^1^! = final^1 ^final^1^1 ^final^1^2' '
git rev-parse final^1 ^final^1^1 ^final^1^2 >expect &&
git rev-parse final^1^! >actual &&
test_cmp expect actual
'
test_expect_success 'symbolic final^1^! = final^1 ^final^1^1 ^final^1^2' '
git rev-parse --symbolic final^1 ^final^1^1 ^final^1^2 >expect &&
git rev-parse --symbolic final^1^! >actual &&
test_cmp expect actual
'
test_expect_success 'large graft octopus' '
test_cmp_rev_output b31 "git rev-parse --verify b1^30"
'
test_expect_success 'repack for next test' '
git repack -a -d
'
test_expect_success 'short SHA-1 works' '
start=$(git rev-parse --verify start) &&
test_cmp_rev_output start "git rev-parse ${start%?}"
'
# rev^- tests; we can use a simpler setup for these
test_expect_success 'setup for rev^- tests' '
test_commit one &&
test_commit two &&
test_commit three &&
# Merge in a branch for testing rev^-
git checkout -b branch &&
git checkout HEAD^^ &&
git merge -m merge --no-edit --no-ff branch &&
git checkout -b merge
'
# The merged branch has 2 commits + the merge
test_expect_success 'rev-list --count merge^- = merge^..merge' '
git rev-list --count merge^..merge >expect &&
echo 3 >actual &&
test_cmp expect actual
'
# All rev^- rev-parse tests
test_expect_success 'rev-parse merge^- = merge^..merge' '
git rev-parse merge^..merge >expect &&
git rev-parse merge^- >actual &&
test_cmp expect actual
'
test_expect_success 'rev-parse merge^-1 = merge^..merge' '
git rev-parse merge^1..merge >expect &&
git rev-parse merge^-1 >actual &&
test_cmp expect actual
'
test_expect_success 'rev-parse merge^-2 = merge^2..merge' '
git rev-parse merge^2..merge >expect &&
git rev-parse merge^-2 >actual &&
test_cmp expect actual
'
test_expect_success 'symbolic merge^-1 = merge^1..merge' '
git rev-parse --symbolic merge^1..merge >expect &&
git rev-parse --symbolic merge^-1 >actual &&
test_cmp expect actual
'
test_expect_success 'rev-parse merge^-0 (invalid parent)' '
test_must_fail git rev-parse merge^-0
'
test_expect_success 'rev-parse merge^-3 (invalid parent)' '
test_must_fail git rev-parse merge^-3
'
test_expect_success 'rev-parse merge^-^ (garbage after ^-)' '
test_must_fail git rev-parse merge^-^
'
test_expect_success 'rev-parse merge^-1x (garbage after ^-1)' '
test_must_fail git rev-parse merge^-1x
'
# All rev^- rev-list tests (should be mostly the same as rev-parse; the reason
# for the duplication is that rev-parse and rev-list use different parsers).
test_expect_success 'rev-list merge^- = merge^..merge' '
git rev-list merge^..merge >expect &&
git rev-list merge^- >actual &&
test_cmp expect actual
'
test_expect_success 'rev-list merge^-1 = merge^1..merge' '
git rev-list merge^1..merge >expect &&
git rev-list merge^-1 >actual &&
test_cmp expect actual
'
test_expect_success 'rev-list merge^-2 = merge^2..merge' '
git rev-list merge^2..merge >expect &&
git rev-list merge^-2 >actual &&
test_cmp expect actual
'
test_expect_success 'rev-list merge^-0 (invalid parent)' '
test_must_fail git rev-list merge^-0
'
test_expect_success 'rev-list merge^-3 (invalid parent)' '
test_must_fail git rev-list merge^-3
'
test_expect_success 'rev-list merge^-^ (garbage after ^-)' '
test_must_fail git rev-list merge^-^
'
test_expect_success 'rev-list merge^-1x (garbage after ^-1)' '
test_must_fail git rev-list merge^-1x
'
test_expect_success 'rev-parse $garbage^@ does not segfault' '
test_must_fail git rev-parse $EMPTY_TREE^@
'
test_expect_success 'rev-parse $garbage...$garbage does not segfault' '
test_must_fail git rev-parse $EMPTY_TREE...$EMPTY_BLOB
'
test_done