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![Ævar Arnfjörð Bjarmason](/assets/img/avatar_default.png)
Change the tag, branch & for-each-ref commands to have a --no-contains option in addition to their longstanding --contains options. This allows for finding the last-good rollout tag given a known-bad <commit>. Given a hypothetically bad commitcf5c7253e0
, the git version to revert to can be found with this hacky two-liner: (git tag -l 'v[0-9]*'; git tag -l --containscf5c7253e0
'v[0-9]*') | sort | uniq -c | grep -E '^ *1 ' | awk '{print $2}' | tail -n 10 With this new --no-contains option the same can be achieved with: git tag -l --no-containscf5c7253e0
'v[0-9]*' | sort | tail -n 10 As the filtering machinery is shared between the tag, branch & for-each-ref commands, implement this for those commands too. A practical use for this with "branch" is e.g. finding branches which were branched off between v2.8.0 and v2.10.0: git branch --contains v2.8.0 --no-contains v2.10.0 The "describe" command also has a --contains option, but its semantics are unrelated to what tag/branch/for-each-ref use --contains for. A --no-contains option for "describe" wouldn't make any sense, other than being exactly equivalent to not supplying --contains at all, which would be confusing at best. Add a --without option to "tag" as an alias for --no-contains, for consistency with --with and --contains. The --with option is undocumented, and possibly the only user of it is Junio (<xmqqefy71iej.fsf@gitster.mtv.corp.google.com>). But it's trivial to support, so let's do that. The additions to the the test suite are inverse copies of the corresponding --contains tests. With this change --no-contains for tag, branch & for-each-ref is just as well tested as the existing --contains option. In addition to those tests, add a test for "tag" which asserts that --no-contains won't find tree/blob tags, which is slightly unintuitive, but consistent with how --contains works & is documented. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
220 lines
4.2 KiB
Bash
Executable file
220 lines
4.2 KiB
Bash
Executable file
#!/bin/sh
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test_description='branch --contains <commit>, --no-contains <commit> --merged, and --no-merged'
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. ./test-lib.sh
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test_expect_success setup '
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>file &&
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git add file &&
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test_tick &&
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git commit -m initial &&
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git branch side &&
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echo 1 >file &&
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test_tick &&
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git commit -a -m "second on master" &&
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git checkout side &&
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echo 1 >file &&
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test_tick &&
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git commit -a -m "second on side" &&
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git merge master
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'
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test_expect_success 'branch --contains=master' '
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git branch --contains=master >actual &&
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{
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echo " master" && echo "* side"
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} >expect &&
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test_cmp expect actual
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'
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test_expect_success 'branch --contains master' '
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git branch --contains master >actual &&
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{
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echo " master" && echo "* side"
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} >expect &&
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test_cmp expect actual
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'
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test_expect_success 'branch --no-contains=master' '
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git branch --no-contains=master >actual &&
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>expect &&
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test_cmp expect actual
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'
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test_expect_success 'branch --no-contains master' '
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git branch --no-contains master >actual &&
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>expect &&
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test_cmp expect actual
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'
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test_expect_success 'branch --contains=side' '
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git branch --contains=side >actual &&
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{
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echo "* side"
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} >expect &&
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test_cmp expect actual
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'
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test_expect_success 'branch --no-contains=side' '
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git branch --no-contains=side >actual &&
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{
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echo " master"
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} >expect &&
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test_cmp expect actual
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'
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test_expect_success 'branch --contains with pattern implies --list' '
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git branch --contains=master master >actual &&
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{
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echo " master"
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} >expect &&
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test_cmp expect actual
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'
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test_expect_success 'branch --no-contains with pattern implies --list' '
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git branch --no-contains=master master >actual &&
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>expect &&
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test_cmp expect actual
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'
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test_expect_success 'side: branch --merged' '
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git branch --merged >actual &&
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{
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echo " master" &&
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echo "* side"
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} >expect &&
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test_cmp expect actual
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'
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test_expect_success 'branch --merged with pattern implies --list' '
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git branch --merged=side master >actual &&
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{
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echo " master"
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} >expect &&
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test_cmp expect actual
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'
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test_expect_success 'side: branch --no-merged' '
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git branch --no-merged >actual &&
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>expect &&
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test_cmp expect actual
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'
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test_expect_success 'master: branch --merged' '
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git checkout master &&
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git branch --merged >actual &&
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{
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echo "* master"
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} >expect &&
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test_cmp expect actual
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'
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test_expect_success 'master: branch --no-merged' '
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git branch --no-merged >actual &&
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{
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echo " side"
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} >expect &&
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test_cmp expect actual
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'
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test_expect_success 'branch --no-merged with pattern implies --list' '
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git branch --no-merged=master master >actual &&
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>expect &&
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test_cmp expect actual
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'
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test_expect_success 'implicit --list conflicts with modification options' '
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test_must_fail git branch --contains=master -d &&
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test_must_fail git branch --contains=master -m foo &&
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test_must_fail git branch --no-contains=master -d &&
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test_must_fail git branch --no-contains=master -m foo
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'
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test_expect_success 'Assert that --contains only works on commits, not trees & blobs' '
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test_must_fail git branch --contains master^{tree} &&
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blob=$(git hash-object -w --stdin <<-\EOF
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Some blob
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EOF
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) &&
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test_must_fail git branch --contains $blob &&
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test_must_fail git branch --no-contains $blob
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'
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# We want to set up a case where the walk for the tracking info
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# of one branch crosses the tip of another branch (and make sure
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# that the latter walk does not mess up our flag to see if it was
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# merged).
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#
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# Here "topic" tracks "master" with one extra commit, and "zzz" points to the
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# same tip as master The name "zzz" must come alphabetically after "topic"
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# as we process them in that order.
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test_expect_success 'branch --merged with --verbose' '
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git branch --track topic master &&
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git branch zzz topic &&
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git checkout topic &&
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test_commit foo &&
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git branch --merged topic >actual &&
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cat >expect <<-\EOF &&
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master
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* topic
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zzz
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EOF
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test_cmp expect actual &&
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git branch --verbose --merged topic >actual &&
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cat >expect <<-\EOF &&
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master c77a0a9 second on master
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* topic 2c939f4 [ahead 1] foo
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zzz c77a0a9 second on master
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EOF
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test_i18ncmp expect actual
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'
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test_expect_success 'branch --contains combined with --no-contains' '
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git branch --contains zzz --no-contains topic >actual &&
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cat >expect <<-\EOF &&
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master
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side
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zzz
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EOF
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test_cmp expect actual
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'
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test_done
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