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authorÆvar Arnfjörð Bjarmason <avarab@gmail.com>2017-03-24 18:40:57 (GMT)
committerJunio C Hamano <gitster@pobox.com>2017-03-24 19:15:26 (GMT)
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parent1e0c3b680c6e7b37fc51bd69a410af01897a4f94 (diff)
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ref-filter: add --no-contains option to tag/branch/for-each-ref
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 commit cf5c7253e0, the git version to revert to can be found with this hacky two-liner: (git tag -l 'v[0-9]*'; git tag -l --contains cf5c7253e0 '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-contains cf5c7253e0 '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>
Diffstat (limited to 'Documentation/git-for-each-ref.txt')
-rw-r--r--Documentation/git-for-each-ref.txt6
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt
index 4d55893..03e187a 100644
--- a/Documentation/git-for-each-ref.txt
+++ b/Documentation/git-for-each-ref.txt
@@ -11,7 +11,7 @@ SYNOPSIS
'git for-each-ref' [--count=<count>] [--shell|--perl|--python|--tcl]
[(--sort=<key>)...] [--format=<format>] [<pattern>...]
[--points-at <object>] [(--merged | --no-merged) [<object>]]
- [--contains [<object>]]
+ [--contains [<object>]] [--no-contains [<object>]]
DESCRIPTION
-----------
@@ -81,6 +81,10 @@ OPTIONS
Only list refs which contain the specified commit (HEAD if not
specified).
+--no-contains [<object>]::
+ Only list refs which don't contain the specified commit (HEAD
+ if not specified).
+
--ignore-case::
Sorting and filtering refs are case insensitive.