mirror of
https://github.com/git/git.git
synced 2024-10-30 05:47:53 +01:00
f17d642d3b
Document & test for cases where there are two remotes pointing to the same URL, and a background fetch & subsequent `git push --force-with-lease` shouldn't clobber un-updated references we haven't fetched. Some editors like Microsoft's VSC have a feature to auto-fetch in the background, this bypasses the protections offered by --force-with-lease & --force-with-lease=<refname>, as noted in the documentation being added here. See the 'Tools that do an automatic fetch defeat "git push --force-with-lease"' (<1491617750.2149.10.camel@mattmccutchen.net>) git mailing list thread for more details. Jakub Narębski suggested this method of adding another remote to bypass this edge case, document that & add a test for it. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
261 lines
6.1 KiB
Bash
Executable file
261 lines
6.1 KiB
Bash
Executable file
#!/bin/sh
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test_description='compare & swap push force/delete safety'
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. ./test-lib.sh
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setup_srcdst_basic () {
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rm -fr src dst &&
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git clone --no-local . src &&
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git clone --no-local src dst &&
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(
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cd src && git checkout HEAD^0
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)
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}
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test_expect_success setup '
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# create template repository
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test_commit A &&
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test_commit B &&
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test_commit C
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'
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test_expect_success 'push to update (protected)' '
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setup_srcdst_basic &&
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(
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cd dst &&
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test_commit D &&
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test_must_fail git push --force-with-lease=master:master origin master 2>err &&
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grep "stale info" err
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) &&
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git ls-remote . refs/heads/master >expect &&
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git ls-remote src refs/heads/master >actual &&
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test_cmp expect actual
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'
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test_expect_success 'push to update (protected, forced)' '
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setup_srcdst_basic &&
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(
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cd dst &&
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test_commit D &&
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git push --force --force-with-lease=master:master origin master 2>err &&
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grep "forced update" err
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) &&
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git ls-remote dst refs/heads/master >expect &&
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git ls-remote src refs/heads/master >actual &&
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test_cmp expect actual
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'
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test_expect_success 'push to update (protected, tracking)' '
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setup_srcdst_basic &&
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(
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cd src &&
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git checkout master &&
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test_commit D &&
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git checkout HEAD^0
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) &&
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git ls-remote src refs/heads/master >expect &&
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(
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cd dst &&
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test_commit E &&
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git ls-remote . refs/remotes/origin/master >expect &&
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test_must_fail git push --force-with-lease=master origin master &&
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git ls-remote . refs/remotes/origin/master >actual &&
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test_cmp expect actual
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) &&
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git ls-remote src refs/heads/master >actual &&
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test_cmp expect actual
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'
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test_expect_success 'push to update (protected, tracking, forced)' '
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setup_srcdst_basic &&
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(
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cd src &&
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git checkout master &&
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test_commit D &&
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git checkout HEAD^0
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) &&
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(
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cd dst &&
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test_commit E &&
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git ls-remote . refs/remotes/origin/master >expect &&
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git push --force --force-with-lease=master origin master
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) &&
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git ls-remote dst refs/heads/master >expect &&
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git ls-remote src refs/heads/master >actual &&
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test_cmp expect actual
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'
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test_expect_success 'push to update (allowed)' '
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setup_srcdst_basic &&
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(
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cd dst &&
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test_commit D &&
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git push --force-with-lease=master:master^ origin master
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) &&
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git ls-remote dst refs/heads/master >expect &&
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git ls-remote src refs/heads/master >actual &&
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test_cmp expect actual
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'
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test_expect_success 'push to update (allowed, tracking)' '
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setup_srcdst_basic &&
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(
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cd dst &&
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test_commit D &&
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git push --force-with-lease=master origin master 2>err &&
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! grep "forced update" err
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) &&
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git ls-remote dst refs/heads/master >expect &&
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git ls-remote src refs/heads/master >actual &&
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test_cmp expect actual
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'
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test_expect_success 'push to update (allowed even though no-ff)' '
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setup_srcdst_basic &&
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(
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cd dst &&
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git reset --hard HEAD^ &&
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test_commit D &&
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git push --force-with-lease=master origin master 2>err &&
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grep "forced update" err
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) &&
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git ls-remote dst refs/heads/master >expect &&
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git ls-remote src refs/heads/master >actual &&
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test_cmp expect actual
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'
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test_expect_success 'push to delete (protected)' '
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setup_srcdst_basic &&
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git ls-remote src refs/heads/master >expect &&
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(
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cd dst &&
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test_must_fail git push --force-with-lease=master:master^ origin :master
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) &&
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git ls-remote src refs/heads/master >actual &&
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test_cmp expect actual
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'
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test_expect_success 'push to delete (protected, forced)' '
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setup_srcdst_basic &&
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(
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cd dst &&
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git push --force --force-with-lease=master:master^ origin :master
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) &&
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>expect &&
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git ls-remote src refs/heads/master >actual &&
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test_cmp expect actual
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'
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test_expect_success 'push to delete (allowed)' '
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setup_srcdst_basic &&
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(
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cd dst &&
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git push --force-with-lease=master origin :master 2>err &&
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grep deleted err
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) &&
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>expect &&
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git ls-remote src refs/heads/master >actual &&
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test_cmp expect actual
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'
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test_expect_success 'cover everything with default force-with-lease (protected)' '
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setup_srcdst_basic &&
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(
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cd src &&
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git branch naster master^
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) &&
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git ls-remote src refs/heads/\* >expect &&
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(
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cd dst &&
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test_must_fail git push --force-with-lease origin master master:naster
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) &&
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git ls-remote src refs/heads/\* >actual &&
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test_cmp expect actual
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'
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test_expect_success 'cover everything with default force-with-lease (allowed)' '
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setup_srcdst_basic &&
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(
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cd src &&
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git branch naster master^
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) &&
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(
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cd dst &&
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git fetch &&
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git push --force-with-lease origin master master:naster
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) &&
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git ls-remote dst refs/heads/master |
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sed -e "s/master/naster/" >expect &&
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git ls-remote src refs/heads/naster >actual &&
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test_cmp expect actual
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'
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test_expect_success 'new branch covered by force-with-lease' '
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setup_srcdst_basic &&
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(
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cd dst &&
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git branch branch master &&
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git push --force-with-lease=branch origin branch
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) &&
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git ls-remote dst refs/heads/branch >expect &&
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git ls-remote src refs/heads/branch >actual &&
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test_cmp expect actual
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'
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test_expect_success 'new branch covered by force-with-lease (explicit)' '
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setup_srcdst_basic &&
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(
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cd dst &&
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git branch branch master &&
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git push --force-with-lease=branch: origin branch
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) &&
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git ls-remote dst refs/heads/branch >expect &&
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git ls-remote src refs/heads/branch >actual &&
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test_cmp expect actual
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'
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test_expect_success 'new branch already exists' '
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setup_srcdst_basic &&
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(
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cd src &&
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git checkout -b branch master &&
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test_commit F
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) &&
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(
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cd dst &&
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git branch branch master &&
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test_must_fail git push --force-with-lease=branch: origin branch
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)
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'
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test_expect_success 'background updates of REMOTE can be mitigated with a non-updated REMOTE-push' '
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rm -rf src dst &&
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git init --bare src.bare &&
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test_when_finished "rm -rf src.bare" &&
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git clone --no-local src.bare dst &&
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test_when_finished "rm -rf dst" &&
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(
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cd dst &&
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test_commit G &&
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git remote add origin-push ../src.bare &&
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git push origin-push master:master
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) &&
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git clone --no-local src.bare dst2 &&
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test_when_finished "rm -rf dst2" &&
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(
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cd dst2 &&
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test_commit H &&
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git push
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) &&
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(
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cd dst &&
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test_commit I &&
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git fetch origin &&
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test_must_fail git push --force-with-lease origin-push &&
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git fetch origin-push &&
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git push --force-with-lease origin-push
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)
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'
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test_done
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