Change the branch & tag commands to have a --no-contains option in
addition to their longstanding --contains options.
The use-case I have for this is mainly to find the last-good rollout
tag given a known-bad <commit>. Right given a hypothetically bad
commit v2.10.1-3-gcf5c7253e0 now you can find that with this hacky
one-liner:
(./git tag -l 'v[0-9]*'; ./git tag -l 'v[0-9]*' --contains
v2.10.1-3-gcf5c7253e0)|sort|uniq -c|grep -E '^ *1 '|awk '{print $2}'
But with the --no-contains option you can now get the exact same
output with:
./git tag -l 'v[0-9]*' --no-contains v2.10.1-3-gcf5c7253e0 | sort
Once I'd implemented this for "tag" it was easy enough to add it for
"branch". I haven't added it to "for-each-ref" but that would be
trivial if anyone cares, but that use-case would be even more obscure
than adding it to "branch", so I haven't bothered. The "describe"
command also has a --contains option, but its semantics are unrelated
to what tag/branch/for-each-ref use --contains for, and I don't see
how a --no-contains option for it would make any sense.
More notes about this patch:
* I'm not really happy with the "special attention" documentation
example in git-branch.txt, but it follows logically from the
description for --contains just above it which I think is overly
specific as well. IMO that entire NOTES section in git-branch.txt
could just be removed.
* I'm adding a --without option as an alias for --no-contains for
consistency with --with and --contains. Since we don't even
document --with anymore (or test it) perhaps we shouldn't be adding
--without.
* Where I'm changing existing documentation lines I'm mainly word
wrapping at 75 columns to be consistent with the existing style.
* Ditto the minor change to git-completion.bash.
* Perhaps we should just copy/paste commit_contains() into
commit_no_contains() and skip the ternary struct assignment. It's a
hot loop, but I have faith in modern compilers.
* All of the test changes I've made are just doing the inverse of the
existing --contains tests, with this --no-contains for both tag &
branch should be just as tested as the existing --contains option.
Signed-off-by: Ævar Arnfjörð Bjarmason <ava...@gmail.com>
---
Documentation/git-branch.txt | 24 +++--
Documentation/git-tag.txt | 6 +-
builtin/branch.c | 4 +-
builtin/tag.c | 2 +
contrib/completion/git-completion.bash | 9 +-
parse-options.h | 4 +-
ref-filter.c | 17 ++--
ref-filter.h | 1 +
t/t3201-branch-contains.sh | 40 +++++++-
t/t7004-tag.sh | 163 ++++++++++++++++++++++++++++++++-
10 files changed, 245 insertions(+), 25 deletions(-)
diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt
index 092f1bcf9f..316ec5b2d4 100644
--- a/Documentation/git-branch.txt
+++ b/Documentation/git-branch.txt
@@ -11,7 +11,7 @@ SYNOPSIS
'git branch' [--color[=<when>] | --no-color] [-r | -a]
[--list] [-v [--abbrev=<length> | --no-abbrev]]
[--column[=<options>] | --no-column]
- [(--merged | --no-merged | --contains) [<commit>]] [--sort=<key>]
+ [(--merged | --no-merged | --contains | --no-contains) [<commit>]]
[--sort=<key>]
[--points-at <object>] [--format=<format>] [<pattern>...]
'git branch' [--set-upstream | --track | --no-track] [-l] [-f] <branchname>
[<start-point>]
'git branch' (--set-upstream-to=<upstream> | -u <upstream>) [<branchname>]
@@ -35,11 +35,12 @@ as branch creation.
With `--contains`, shows only the branches that contain the named commit
(in other words, the branches whose tip commits are descendants of the
-named commit). With `--merged`, only branches merged into the named
-commit (i.e. the branches whose tip commits are reachable from the named
-commit) will be listed. With `--no-merged` only branches not merged into
-the named commit will be listed. If the <commit> argument is missing it
-defaults to `HEAD` (i.e. the tip of the current branch).
+named commit), `--no-contains` inverts it. With `--merged`, only branches
+merged into the named commit (i.e. the branches whose tip commits are
+reachable from the named commit) will be listed. With `--no-merged` only
+branches not merged into the named commit will be listed. If the <commit>
+argument is missing it defaults to `HEAD` (i.e. the tip of the current
+branch).
The command's second form creates a new branch head named <branchname>
which points to the current `HEAD`, or <start-point> if given.
@@ -213,6 +214,10 @@ start-point is either a local or remote-tracking branch.
Only list branches which contain the specified commit (HEAD
if not specified). Implies `--list`.
+--no-contains [<commit>]::
+ Only list branches which don't contain the specified commit
+ (HEAD if not specified). Implies `--list`.
+
--merged [<commit>]::
Only list branches whose tips are reachable from the
specified commit (HEAD if not specified). Implies `--list`.
@@ -296,13 +301,16 @@ If you are creating a branch that you want to checkout
immediately, it is
easier to use the git checkout command with its `-b` option to create
a branch and check it out with a single command.
-The options `--contains`, `--merged` and `--no-merged` serve three related
-but different purposes:
+The options `--contains`, `--no-contains`, `--merged` and `--no-merged`
+serve three related but different purposes:
- `--contains <commit>` is used to find all branches which will need
special attention if <commit> were to be rebased or amended, since those
branches contain the specified <commit>.
+- `--no-contains <commit>` is used to find those branches which won't need
+ that special attention.
+
- `--merged` is used to find all branches which can be safely deleted,
since those branches are fully contained by HEAD.
diff --git a/Documentation/git-tag.txt b/Documentation/git-tag.txt
index 525737a5d8..4938496194 100644
--- a/Documentation/git-tag.txt
+++ b/Documentation/git-tag.txt
@@ -12,7 +12,7 @@ SYNOPSIS
'git tag' [-a | -s | -u <keyid>] [-f] [-m <msg> | -F <file>]
<tagname> [<commit> | <object>]
'git tag' -d <tagname>...
-'git tag' [-n[<num>]] -l [--contains <commit>] [--points-at <object>]
+'git tag' [-n[<num>]] -l [--[no-]contains <commit>] [--points-at <object>]
[--column[=<options>] | --no-column] [--create-reflog] [--sort=<key>]
[--format=<format>] [--[no-]merged [<commit>]] [<pattern>...]
'git tag' -v [--format=<format>] <tagname>...
@@ -124,6 +124,10 @@ This option is only applicable when listing tags without
annotation lines.
Only list tags which contain the specified commit (HEAD if not
specified).
+--no-contains [<commit>]::
+ Only list tags which don't contain the specified commit (HEAD if
+ not secified).
+
--points-at <object>::
Only list tags of the given object.
diff --git a/builtin/branch.c b/builtin/branch.c
index 94f7de7fa5..e8d534604c 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -548,7 +548,9 @@ int cmd_branch(int argc, const char **argv, const char
*prefix)
OPT_SET_INT('r', "remotes", &filter.kind, N_("act on
remote-tracking branches"),
FILTER_REFS_REMOTES),
OPT_CONTAINS(&filter.with_commit, N_("print only branches that
contain the commit")),
+ OPT_NO_CONTAINS(&filter.no_commit, N_("print only branches that
don't contain the commit")),
OPT_WITH(&filter.with_commit, N_("print only branches that
contain the commit")),
+ OPT_WITHOUT(&filter.with_commit, N_("print only branches that
don't contain the commit")),
OPT__ABBREV(&filter.abbrev),
OPT_GROUP(N_("Specific git-branch actions:")),
@@ -604,7 +606,7 @@ int cmd_branch(int argc, const char **argv, const char
*prefix)
if (!delete && !rename && !edit_description && !new_upstream &&
!unset_upstream && argc == 0)
list = 1;
- if (filter.with_commit || filter.merge != REF_FILTER_MERGED_NONE ||
filter.points_at.nr)
+ if (filter.with_commit || filter.no_commit || filter.merge !=
REF_FILTER_MERGED_NONE || filter.points_at.nr)
list = 1;
if (!!delete + !!rename + !!new_upstream +
diff --git a/builtin/tag.c b/builtin/tag.c
index ad29be6923..737a83028a 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -424,7 +424,9 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
OPT_GROUP(N_("Tag listing options")),
OPT_COLUMN(0, "column", &colopts, N_("show tag list in
columns")),
OPT_CONTAINS(&filter.with_commit, N_("print only tags that
contain the commit")),
+ OPT_NO_CONTAINS(&filter.no_commit, N_("print only tags that
don't contain the commit")),
OPT_WITH(&filter.with_commit, N_("print only tags that contain
the commit")),
+ OPT_WITHOUT(&filter.no_commit, N_("print only tags that don't
contain the commit")),
OPT_MERGED(&filter, N_("print only tags that are merged")),
OPT_NO_MERGED(&filter, N_("print only tags that are not
merged")),
OPT_CALLBACK(0 , "sort", sorting_tail, N_("key"),
diff --git a/contrib/completion/git-completion.bash
b/contrib/completion/git-completion.bash
index fc32286a43..fa3da49478 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -1093,9 +1093,9 @@ _git_branch ()
--*)
__gitcomp "
--color --no-color --verbose --abbrev= --no-abbrev
- --track --no-track --contains --merged --no-merged
- --set-upstream-to= --edit-description --list
- --unset-upstream --delete --move --remotes
+ --track --no-track --contains --no-contains --merged
+ --no-merged --set-upstream-to= --edit-description
+ --list --unset-upstream --delete --move --remotes
--column --no-column --sort= --points-at
"
;;
@@ -2862,7 +2862,8 @@ _git_tag ()
__gitcomp "
--list --delete --verify --annotate --message --file
--sign --cleanup --local-user --force --column --sort=
- --contains --points-at --merged --no-merged
--create-reflog
+ --contains --no-contains --points-at --merged
+ --no-merged --create-reflog
"
;;
esac
diff --git a/parse-options.h b/parse-options.h
index dcd8a0926c..0eac90b510 100644
--- a/parse-options.h
+++ b/parse-options.h
@@ -258,7 +258,9 @@ extern int parse_opt_passthru_argv(const struct option *,
const char *, int);
PARSE_OPT_LASTARG_DEFAULT | flag, \
parse_opt_commits, (intptr_t) "HEAD" \
}
-#define OPT_CONTAINS(v, h) _OPT_CONTAINS_OR_WITH("contains", v, h, 0)
+#define OPT_CONTAINS(v, h) _OPT_CONTAINS_OR_WITH("contains", v, h,
PARSE_OPT_NONEG)
+#define OPT_NO_CONTAINS(v, h) _OPT_CONTAINS_OR_WITH("no-contains", v, h,
PARSE_OPT_NONEG)
#define OPT_WITH(v, h) _OPT_CONTAINS_OR_WITH("with", v, h, PARSE_OPT_HIDDEN)
+#define OPT_WITHOUT(v, h) _OPT_CONTAINS_OR_WITH("without", v, h,
PARSE_OPT_HIDDEN)
#endif
diff --git a/ref-filter.c b/ref-filter.c
index 1ec0fb8391..6a7ca1cdac 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -1571,11 +1571,12 @@ static enum contains_result contains_tag_algo(struct
commit *candidate,
return contains_test(candidate, want);
}
-static int commit_contains(struct ref_filter *filter, struct commit *commit)
+static int commit_contains(struct ref_filter *filter, struct commit *commit,
const int with_commit)
{
+ struct commit_list *tmp = with_commit ? filter->with_commit :
filter->no_commit;
if (filter->with_commit_tag_algo)
- return contains_tag_algo(commit, filter->with_commit);
- return is_descendant_of(commit, filter->with_commit);
+ return contains_tag_algo(commit, tmp);
+ return is_descendant_of(commit, tmp);
}
/*
@@ -1765,13 +1766,17 @@ static int ref_filter_handler(const char *refname,
const struct object_id *oid,
* obtain the commit using the 'oid' available and discard all
* non-commits early. The actual filtering is done later.
*/
- if (filter->merge_commit || filter->with_commit || filter->verbose) {
+ if (filter->merge_commit || filter->with_commit || filter->no_commit ||
filter->verbose) {
commit = lookup_commit_reference_gently(oid->hash, 1);
if (!commit)
return 0;
- /* We perform the filtering for the '--contains' option */
+ /* We perform the filtering for the '--contains' option... */
if (filter->with_commit &&
- !commit_contains(filter, commit))
+ !commit_contains(filter, commit, 1))
+ return 0;
+ /* ...or for the `--no-contains' option */
+ if (filter->no_commit &&
+ commit_contains(filter, commit, 0))
return 0;
}
diff --git a/ref-filter.h b/ref-filter.h
index 154e24c405..af85eb4592 100644
--- a/ref-filter.h
+++ b/ref-filter.h
@@ -53,6 +53,7 @@ struct ref_filter {
const char **name_patterns;
struct sha1_array points_at;
struct commit_list *with_commit;
+ struct commit_list *no_commit;
enum {
REF_FILTER_MERGED_NONE = 0,
diff --git a/t/t3201-branch-contains.sh b/t/t3201-branch-contains.sh
index 7f3ec47241..9fb79e66f0 100755
--- a/t/t3201-branch-contains.sh
+++ b/t/t3201-branch-contains.sh
@@ -1,6 +1,6 @@
#!/bin/sh
-test_description='branch --contains <commit>, --merged, and --no-merged'
+test_description='branch --contains <commit>, --no-contains <commit> --merged,
and --no-merged'
. ./test-lib.sh
@@ -45,6 +45,22 @@ test_expect_success 'branch --contains master' '
'
+test_expect_success 'branch --no-contains=master' '
+
+ git branch --no-contains=master >actual &&
+ >expect &&
+ test_cmp expect actual
+
+'
+
+test_expect_success 'branch --no-contains master' '
+
+ git branch --no-contains master >actual &&
+ >expect &&
+ test_cmp expect actual
+
+'
+
test_expect_success 'branch --contains=side' '
git branch --contains=side >actual &&
@@ -55,6 +71,16 @@ test_expect_success 'branch --contains=side' '
'
+test_expect_success 'branch --no-contains=side' '
+
+ git branch --no-contains=side >actual &&
+ {
+ echo " master"
+ } >expect &&
+ test_cmp expect actual
+
+'
+
test_expect_success 'branch --contains with pattern implies --list' '
git branch --contains=master master >actual &&
@@ -65,6 +91,14 @@ test_expect_success 'branch --contains with pattern implies
--list' '
'
+test_expect_success 'branch --no-contains with pattern implies --list' '
+
+ git branch --no-contains=master master >actual &&
+ >expect &&
+ test_cmp expect actual
+
+'
+
test_expect_success 'side: branch --merged' '
git branch --merged >actual &&
@@ -126,7 +160,9 @@ test_expect_success 'branch --no-merged with pattern
implies --list' '
test_expect_success 'implicit --list conflicts with modification options' '
test_must_fail git branch --contains=master -d &&
- test_must_fail git branch --contains=master -m foo
+ test_must_fail git branch --contains=master -m foo &&
+ test_must_fail git branch --no-contains=master -d &&
+ test_must_fail git branch --no-contains=master -m foo
'
diff --git a/t/t7004-tag.sh b/t/t7004-tag.sh
index b4698ab5f5..f01bcafea4 100755
--- a/t/t7004-tag.sh
+++ b/t/t7004-tag.sh
@@ -1385,6 +1385,23 @@ test_expect_success 'checking that first commit is in
all tags (relative)' "
test_cmp expected actual
"
+# All the --contains tests above, but with --no-contains
+test_expect_success 'checking that first commit is not listed in any tag with
--no-contains (hash)' "
+ >expected &&
+ git tag -l --no-contains $hash1 v* >actual &&
+ test_cmp expected actual
+"
+
+test_expect_success 'checking that first commit is in all tags (tag)' "
+ git tag -l --no-contains v1.0 v* >actual &&
+ test_cmp expected actual
+"
+
+test_expect_success 'checking that first commit is in all tags (relative)' "
+ git tag -l --no-contains HEAD~2 v* >actual &&
+ test_cmp expected actual
+"
+
cat > expected <<EOF
v2.0
EOF
@@ -1394,6 +1411,17 @@ test_expect_success 'checking that second commit only
has one tag' "
test_cmp expected actual
"
+cat > expected <<EOF
+v0.2.1
+v1.0
+v1.0.1
+v1.1.3
+EOF
+
+test_expect_success 'inverse of the last test, with --no-contains' "
+ git tag -l --no-contains $hash2 v* >actual &&
+ test_cmp expected actual
+"
cat > expected <<EOF
EOF
@@ -1403,6 +1431,19 @@ test_expect_success 'checking that third commit has no
tags' "
test_cmp expected actual
"
+cat > expected <<EOF
+v0.2.1
+v1.0
+v1.0.1
+v1.1.3
+v2.0
+EOF
+
+test_expect_success 'conversely --no-contains on the third commit lists all
tags' "
+ git tag -l --no-contains $hash3 v* >actual &&
+ test_cmp expected actual
+"
+
# how about a simple merge?
test_expect_success 'creating simple branch' '
@@ -1424,6 +1465,19 @@ test_expect_success 'checking that branch head only has
one tag' "
test_cmp expected actual
"
+cat > expected <<EOF
+v0.2.1
+v1.0
+v1.0.1
+v1.1.3
+v2.0
+EOF
+
+test_expect_success 'checking that branch head with --no-contains lists all
but one tag' "
+ git tag -l --no-contains $hash4 v* >actual &&
+ test_cmp expected actual
+"
+
test_expect_success 'merging original branch into this branch' '
git merge --strategy=ours master &&
git tag v4.0
@@ -1445,6 +1499,20 @@ v1.0.1
v1.1.3
v2.0
v3.0
+EOF
+
+test_expect_success 'checking that original branch head with --no-contains
lists all but one tag now' "
+ git tag -l --no-contains $hash3 v* >actual &&
+ test_cmp expected actual
+"
+
+cat > expected <<EOF
+v0.2.1
+v1.0
+v1.0.1
+v1.1.3
+v2.0
+v3.0
v4.0
EOF
@@ -1453,6 +1521,12 @@ test_expect_success 'checking that initial commit is in
all tags' "
test_cmp expected actual
"
+test_expect_success 'checking that initial commit is in all tags with
--no-contains' "
+ >expected &&
+ git tag -l --no-contains $hash1 v* >actual &&
+ test_cmp expected actual
+"
+
# mixing modes and options:
test_expect_success 'mixing incompatibles modes and options is forbidden' '
@@ -1708,8 +1782,91 @@ run_with_limited_stack () {
test_lazy_prereq ULIMIT_STACK_SIZE 'run_with_limited_stack true'
+# These are all the tags we've created above
+cat >expect.no-contains <<EOF
+a1
+aa1
+annotated-again-v4.0
+annotated-tag
+annotated-v4.0
+blank-annotated-tag
+blank-signed-tag
+blankfile-annotated-tag
+blankfile-signed-tag
+blanknonlfile-annotated-tag
+blanknonlfile-signed-tag
+blanks-annotated-tag
+blanks-signed-tag
+cba
+comment-annotated-tag
+comment-signed-tag
+commentfile-annotated-tag
+commentfile-signed-tag
+commentnonlfile-annotated-tag
+commentnonlfile-signed-tag
+comments-annotated-tag
+comments-signed-tag
+empty-annotated-tag
+empty-signed-tag
+emptyfile-annotated-tag
+emptyfile-signed-tag
+far-far-away
+file-annotated-tag
+file-signed-tag
+foo1.10
+foo1.10-alpha
+foo1.10-beta
+foo1.10-delta
+foo1.10-gamma
+foo1.10-unlisted-suffix
+foo1.3
+foo1.6
+foo1.6-rc1
+foo1.6-rc2
+foo1.7
+foo1.7-after1
+foo1.7-before1
+foo1.8
+foo1.8-foo-bar
+foo1.8-foo-baz
+foo1.9-pre1
+foo1.9-pre2
+foo1.9-prerelease1
+forcesignannotated-annotate
+forcesignannotated-disabled
+forcesignannotated-implied-sign
+forcesignannotated-lightweight
+forged-tag
+implied-annotate
+implied-sign
+non-annotated-tag
+reuse
+signed-tag
+stag-lines
+stag-one-line
+stag-zero-lines
+stdin-annotated-tag
+stdin-signed-tag
+t210
+t211
+tag-from-subdir
+tag-from-subdir-2
+tag-lines
+tag-one-line
+tag-signed-tag
+tag-zero-lines
+u-signed-tag
+v0.2.1
+v1.0
+v1.0.1
+v1.1.3
+v2.0
+v3.0
+v4.0
+EOF
+
# we require ulimit, this excludes Windows
-test_expect_success ULIMIT_STACK_SIZE '--contains works in a deep repo' '
+test_expect_success ULIMIT_STACK_SIZE '--contains and --no-contains work in a
deep repo' '
>expect &&
i=1 &&
while test $i -lt 8000
@@ -1725,7 +1882,9 @@ EOF"
git checkout master &&
git tag far-far-away HEAD^ &&
run_with_limited_stack git tag --contains HEAD >actual &&
- test_cmp expect actual
+ test_cmp expect actual &&
+ run_with_limited_stack git tag --no-contains HEAD >actual &&
+ test_cmp expect.no-contains actual
'
test_expect_success '--format should list tags as per format given' '
--
2.11.0
