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17baeaf82d
Fix a segfault in the --set-upstream option added in24bc1a1292(pull, fetch: add --set-upstream option, 2019-08-19) added in v2.24.0. The code added there did not do the same checking we do for "git branch" itself since8efb8899cf(branch: segfault fixes and validation, 2013-02-23), which in turn fixed the same sort of segfault I'm fixing now in "git branch --set-upstream-to", see6183d826ba(branch: introduce --set-upstream-to, 2012-08-20). The warning message I'm adding here is an amalgamation of the error added for "git branch" in8efb8899cf, and the error output install_branch_config() itself emits, i.e. it trims "refs/heads/" from the name and says "branch X on remote", not "branch refs/heads/X on remote". I think it would make more sense to simply die() here, but in the other checks for --set-upstream added in24bc1a1292we issue a warning() instead. Let's do the same here for consistency for now. There was an earlier submitted alternate way of fixing this in [1], due to that patch breaking threading with the original report at [2] I didn't notice it before authoring this version. I think the more detailed warning message here is better, and we should also have tests for this behavior. The --no-rebase option to "git pull" is needed as of the recently merged7d0daf3f12(Merge branch 'en/pull-conflicting-options', 2021-08-30). 1. https://lore.kernel.org/git/20210706162238.575988-1-clemens@endorphin.org/ 2. https://lore.kernel.org/git/CAG6gW_uHhfNiHGQDgGmb1byMqBA7xa8kuH1mP-wAPEe5Tmi2Ew@mail.gmail.com/ Reported-by: Clemens Fruhwirth <clemens@endorphin.org> Reported-by: Jan Pokorný <poki@fnusa.cz> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
204 lines
6.1 KiB
Bash
Executable File
204 lines
6.1 KiB
Bash
Executable File
#!/bin/sh
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test_description='"git fetch/pull --set-upstream" basic tests.'
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GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
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export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
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. ./test-lib.sh
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check_config () {
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printf "%s\n" "$2" "$3" >"expect.$1" &&
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{
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git config "branch.$1.remote" && git config "branch.$1.merge"
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} >"actual.$1" &&
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test_cmp "expect.$1" "actual.$1"
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}
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check_config_missing () {
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test_expect_code 1 git config "branch.$1.remote" &&
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test_expect_code 1 git config "branch.$1.merge"
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}
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clear_config () {
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for branch in "$@"; do
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test_might_fail git config --unset-all "branch.$branch.remote"
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test_might_fail git config --unset-all "branch.$branch.merge"
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done
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}
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ensure_fresh_upstream () {
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rm -rf parent && git init --bare parent
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}
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test_expect_success 'setup bare parent fetch' '
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ensure_fresh_upstream &&
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git remote add upstream parent
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'
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test_expect_success 'setup commit on main and other fetch' '
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test_commit one &&
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git push upstream main &&
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git checkout -b other &&
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test_commit two &&
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git push upstream other
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'
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# tests for fetch --set-upstream
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test_expect_success 'fetch --set-upstream does not set upstream w/o branch' '
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clear_config main other &&
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git checkout main &&
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git fetch --set-upstream upstream &&
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check_config_missing main &&
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check_config_missing other
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'
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test_expect_success 'fetch --set-upstream upstream main sets branch main but not other' '
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clear_config main other &&
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git fetch --set-upstream upstream main &&
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check_config main upstream refs/heads/main &&
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check_config_missing other
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'
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test_expect_success 'fetch --set-upstream upstream other sets branch other' '
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clear_config main other &&
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git fetch --set-upstream upstream other &&
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check_config main upstream refs/heads/other &&
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check_config_missing other
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'
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test_expect_success 'fetch --set-upstream main:other does not set the branch other2' '
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clear_config other2 &&
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git fetch --set-upstream upstream main:other2 &&
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check_config_missing other2
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'
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test_expect_success 'fetch --set-upstream http://nosuchdomain.example.com fails with invalid url' '
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# main explicitly not cleared, we check that it is not touched from previous value
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clear_config other other2 &&
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test_must_fail git fetch --set-upstream http://nosuchdomain.example.com &&
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check_config main upstream refs/heads/other &&
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check_config_missing other &&
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check_config_missing other2
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'
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test_expect_success 'fetch --set-upstream with valid URL sets upstream to URL' '
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clear_config other other2 &&
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url="file://$PWD" &&
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git fetch --set-upstream "$url" &&
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check_config main "$url" HEAD &&
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check_config_missing other &&
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check_config_missing other2
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'
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test_expect_success 'fetch --set-upstream with a detached HEAD' '
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git checkout HEAD^0 &&
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test_when_finished "git checkout -" &&
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cat >expect <<-\EOF &&
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warning: could not set upstream of HEAD to '"'"'main'"'"' from '"'"'upstream'"'"' when it does not point to any branch.
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EOF
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git fetch --set-upstream upstream main 2>actual.raw &&
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grep ^warning: actual.raw >actual &&
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test_cmp expect actual
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'
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# tests for pull --set-upstream
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test_expect_success 'setup bare parent pull' '
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git remote rm upstream &&
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ensure_fresh_upstream &&
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git remote add upstream parent
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'
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test_expect_success 'setup commit on main and other pull' '
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test_commit three &&
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git push --tags upstream main &&
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test_commit four &&
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git push upstream other
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'
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test_expect_success 'pull --set-upstream upstream main sets branch main but not other' '
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clear_config main other &&
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git pull --no-rebase --set-upstream upstream main &&
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check_config main upstream refs/heads/main &&
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check_config_missing other
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'
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test_expect_success 'pull --set-upstream main:other2 does not set the branch other2' '
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clear_config other2 &&
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git pull --no-rebase --set-upstream upstream main:other2 &&
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check_config_missing other2
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'
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test_expect_success 'pull --set-upstream upstream other sets branch main' '
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clear_config main other &&
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git pull --no-rebase --set-upstream upstream other &&
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check_config main upstream refs/heads/other &&
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check_config_missing other
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'
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test_expect_success 'pull --set-upstream upstream tag does not set the tag' '
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clear_config three &&
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git pull --no-rebase --tags --set-upstream upstream three &&
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check_config_missing three
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'
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test_expect_success 'pull --set-upstream http://nosuchdomain.example.com fails with invalid url' '
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# main explicitly not cleared, we check that it is not touched from previous value
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clear_config other other2 three &&
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test_must_fail git pull --set-upstream http://nosuchdomain.example.com &&
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check_config main upstream refs/heads/other &&
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check_config_missing other &&
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check_config_missing other2 &&
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check_config_missing three
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'
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test_expect_success 'pull --set-upstream upstream HEAD sets branch HEAD' '
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clear_config main other &&
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git pull --no-rebase --set-upstream upstream HEAD &&
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check_config main upstream HEAD &&
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git checkout other &&
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git pull --no-rebase --set-upstream upstream HEAD &&
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check_config other upstream HEAD
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'
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test_expect_success 'pull --set-upstream upstream with more than one branch does nothing' '
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clear_config main three &&
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git pull --no-rebase --set-upstream upstream main three &&
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check_config_missing main &&
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check_config_missing three
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'
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test_expect_success 'pull --set-upstream with valid URL sets upstream to URL' '
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clear_config main other other2 &&
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git checkout main &&
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url="file://$PWD" &&
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git pull --set-upstream "$url" &&
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check_config main "$url" HEAD &&
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check_config_missing other &&
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check_config_missing other2
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'
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test_expect_success 'pull --set-upstream with valid URL and branch sets branch' '
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clear_config main other other2 &&
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git checkout main &&
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url="file://$PWD" &&
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git pull --set-upstream "$url" main &&
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check_config main "$url" refs/heads/main &&
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check_config_missing other &&
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check_config_missing other2
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'
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test_expect_success 'pull --set-upstream with a detached HEAD' '
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git checkout HEAD^0 &&
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test_when_finished "git checkout -" &&
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cat >expect <<-\EOF &&
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warning: could not set upstream of HEAD to '"'"'main'"'"' from '"'"'upstream'"'"' when it does not point to any branch.
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EOF
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git pull --no-rebase --set-upstream upstream main 2>actual.raw &&
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grep ^warning: actual.raw >actual &&
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test_cmp expect actual
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'
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test_done
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