Merge branch 'ab/ref-filter-no-contains'

"git tag/branch/for-each-ref" family of commands long allowed to
filter the refs by "--contains X" (show only the refs that are
descendants of X), "--merged X" (show only the refs that are
ancestors of X), "--no-merged X" (show only the refs that are not
ancestors of X).  One curious omission, "--no-contains X" (show
only the refs that are not descendants of X) has been added to
them.

* ab/ref-filter-no-contains:
  tag: add tests for --with and --without
  ref-filter: reflow recently changed branch/tag/for-each-ref docs
  ref-filter: add --no-contains option to tag/branch/for-each-ref
  tag: change --point-at to default to HEAD
  tag: implicitly supply --list given another list-like option
  tag: change misleading --list <pattern> documentation
  parse-options: add OPT_NONEG to the "contains" option
  tag: add more incompatibles mode tests
  for-each-ref: partly change <object> to <commit> in help
  tag tests: fix a typo in a test description
  tag: remove a TODO item from the test suite
  ref-filter: add test for --contains on a non-commit
  ref-filter: make combining --merged & --no-merged an error
  tag doc: reword --[no-]merged to talk about commits, not tips
  tag doc: split up the --[no-]merged documentation
  tag doc: move the description of --[no-]merged earlier

Documentation/git-branch.txt

@@ -10,8 +10,9 @@ SYNOPSIS
 [verse]
 'git branch' [--color[=<when>] | --no-color] [-r | -a]
 	[--list] [-v [--abbrev=<length> | --no-abbrev]]
-	[--column[=<options>] | --no-column]
+	[--column[=<options>] | --no-column] [--sort=<key>]
-	[(--merged | --no-merged | --contains) [<commit>]] [--sort=<key>]
+	[(--merged | --no-merged) [<commit>]]
+	[--contains [<commit]] [--no-contains [<commit>]]
 	[--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 +36,12 @@ 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
+named commit), `--no-contains` inverts it. With `--merged`, only branches
-commit (i.e. the branches whose tip commits are reachable from the named
+merged into the named commit (i.e. the branches whose tip commits are
-commit) will be listed.  With `--no-merged` only branches not merged into
+reachable from the named commit) will be listed.  With `--no-merged` only
-the named commit will be listed.  If the <commit> argument is missing it
+branches not merged into the named commit will be listed.  If the <commit>
-defaults to `HEAD` (i.e. the tip of the current branch).
+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.
@@ -218,13 +220,19 @@ 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`.
+	specified commit (HEAD if not specified). Implies `--list`,
+	incompatible with `--no-merged`.
 
 --no-merged [<commit>]::
 	Only list branches whose tips are not reachable from the
-	specified commit (HEAD if not specified). Implies `--list`.
+	specified commit (HEAD if not specified). Implies `--list`,
+	incompatible with `--merged`.
 
 <branchname>::
 	The name of the branch to create or delete.
@@ -301,13 +309,16 @@ 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
+The options `--contains`, `--no-contains`, `--merged` and `--no-merged`
-but different purposes:
+serve four 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 the inverse of that, i.e. branches that don't
+  contain the specified <commit>.
+
 - `--merged` is used to find all branches which can be safely deleted,
   since those branches are fully contained by HEAD.
 

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
 -----------
@@ -69,16 +69,22 @@ OPTIONS
 
 --merged [<object>]::
 	Only list refs whose tips are reachable from the
-	specified commit (HEAD if not specified).
+	specified commit (HEAD if not specified),
+	incompatible with `--no-merged`.
 
 --no-merged [<object>]::
 	Only list refs whose tips are not reachable from the
-	specified commit (HEAD if not specified).
+	specified commit (HEAD if not specified),
+	incompatible with `--merged`.
 
 --contains [<object>]::
 	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.
 

Documentation/git-tag.txt

@@ -12,9 +12,10 @@ 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 [--contains <commit>] [--contains <commit>]
-	[--column[=<options>] | --no-column] [--create-reflog] [--sort=<key>]
+	[--points-at <object>] [--column[=<options>] | --no-column]
-	[--format=<format>] [--[no-]merged [<commit>]] [<pattern>...]
+	[--create-reflog] [--sort=<key>] [--format=<format>]
+	[--[no-]merged [<commit>]] [<pattern>...]
 'git tag' -v [--format=<format>] <tagname>...
 
 DESCRIPTION
@@ -82,18 +83,24 @@ OPTIONS
 
 -n<num>::
 	<num> specifies how many lines from the annotation, if any,
-	are printed when using -l.
+	are printed when using -l. Implies `--list`.
-	The default is not to print any annotation lines.
++
-	If no number is given to `-n`, only the first line is printed.
+The default is not to print any annotation lines.
-	If the tag is not annotated, the commit message is displayed instead.
+If no number is given to `-n`, only the first line is printed.
+If the tag is not annotated, the commit message is displayed instead.
 
--l <pattern>::
+-l::
---list <pattern>::
+--list::
-	List tags with names that match the given pattern (or all if no
+	List tags. With optional `<pattern>...`, e.g. `git tag --list
-	pattern is given).  Running "git tag" without arguments also
+	'v-*'`, list only the tags that match the pattern(s).
-	lists all tags. The pattern is a shell wildcard (i.e., matched
++
-	using fnmatch(3)).  Multiple patterns may be given; if any of
+Running "git tag" without arguments also lists all tags. The pattern
-	them matches, the tag is shown.
+is a shell wildcard (i.e., matched using fnmatch(3)). Multiple
+patterns may be given; if any of them matches, the tag is shown.
++
+This option is implicitly supplied if any other list-like option such
+as `--contains` is provided. See the documentation for each of those
+options for details.
 
 --sort=<key>::
 	Sort based on the key given.  Prefix `-` to sort in
@@ -122,10 +129,23 @@ This option is only applicable when listing tags without annotation lines.
 
 --contains [<commit>]::
 	Only list tags which contain the specified commit (HEAD if not
-	specified).
+	specified). Implies `--list`.
+
+--no-contains [<commit>]::
+	Only list tags which don't contain the specified commit (HEAD if
+	not specified). Implies `--list`.
+
+--merged [<commit>]::
+	Only list tags whose commits are reachable from the specified
+	commit (`HEAD` if not specified), incompatible with `--no-merged`.
+
+--no-merged [<commit>]::
+	Only list tags whose commits are not reachable from the specified
+	commit (`HEAD` if not specified), incompatible with `--merged`.
 
 --points-at <object>::
-	Only list tags of the given object.
+	Only list tags of the given object (HEAD if not
+	specified). Implies `--list`.
 
 -m <msg>::
 --message=<msg>::
@@ -173,11 +193,6 @@ This option is only applicable when listing tags without annotation lines.
 	that of linkgit:git-for-each-ref[1].  When unspecified,
 	defaults to `%(refname:strip=2)`.
 
---[no-]merged [<commit>]::
-	Only list tags whose tips are reachable, or not reachable
-	if `--no-merged` is used, from the specified commit (`HEAD`
-	if not specified).
-
 CONFIGURATION
 -------------
 By default, 'git tag' in sign-with-default mode (-s) will use your

builtin/branch.c

@@ -562,7 +562,9 @@ 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.no_commit, N_("print only branches that don't contain the commit")),
 		OPT__ABBREV(&filter.abbrev),
 
 		OPT_GROUP(N_("Specific git-branch actions:")),
@@ -618,7 +620,8 @@ 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.merge != REF_FILTER_MERGED_NONE || filter.points_at.nr ||
+	    filter.no_commit)
 		list = 1;
 
 	if (!!delete + !!rename + !!new_upstream +

builtin/for-each-ref.c

@@ -8,8 +8,8 @@
 static char const * const for_each_ref_usage[] = {
 	N_("git for-each-ref [<options>] [<pattern>]"),
 	N_("git for-each-ref [--points-at <object>]"),
-	N_("git for-each-ref [(--merged | --no-merged) [<object>]]"),
+	N_("git for-each-ref [(--merged | --no-merged) [<commit>]]"),
-	N_("git for-each-ref [--contains [<object>]]"),
+	N_("git for-each-ref [--contains [<commit>]] [--no-contains [<commit>]]"),
 	NULL
 };
 
@@ -43,6 +43,7 @@ int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
 		OPT_MERGED(&filter, N_("print only refs that are merged")),
 		OPT_NO_MERGED(&filter, N_("print only refs that are not merged")),
 		OPT_CONTAINS(&filter.with_commit, N_("print only refs which contain the commit")),
+		OPT_NO_CONTAINS(&filter.no_commit, N_("print only refs which don't contain the commit")),
 		OPT_BOOL(0, "ignore-case", &icase, N_("sorting and filtering are case insensitive")),
 		OPT_END(),
 	};

builtin/tag.c

@@ -22,7 +22,7 @@
 static const char * const git_tag_usage[] = {
 	N_("git tag [-a | -s | -u <key-id>] [-f] [-m <msg> | -F <file>] <tagname> [<head>]"),
 	N_("git tag -d <tagname>..."),
-	N_("git tag -l [-n[<num>]] [--contains <commit>] [--points-at <object>]"
+	N_("git tag -l [-n[<num>]] [--contains <commit>] [--no-contains <commit>] [--points-at <object>]"
 		"\n\t\t[--format=<format>] [--[no-]merged [<commit>]] [<pattern>...]"),
 	N_("git tag -v [--format=<format>] <tagname>..."),
 	NULL
@@ -424,14 +424,17 @@ 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"),
 			     N_("field name to sort on"), &parse_opt_ref_sorting),
 		{
 			OPTION_CALLBACK, 0, "points-at", &filter.points_at, N_("object"),
-			N_("print only tags of the object"), 0, parse_opt_object_name
+			N_("print only tags of the object"), PARSE_OPT_LASTARG_DEFAULT,
+			parse_opt_object_name, (intptr_t) "HEAD"
 		},
 		OPT_STRING(  0 , "format", &format, N_("format"), N_("format to use for the output")),
 		OPT_BOOL('i', "ignore-case", &icase, N_("sorting and filtering are case insensitive")),
@@ -454,8 +457,14 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 	}
 	create_tag_object = (opt.sign || annotate || msg.given || msgfile);
 
-	if (argc == 0 && !cmdmode)
+	if (!cmdmode) {
-		cmdmode = 'l';
+		if (argc == 0)
+			cmdmode = 'l';
+		else if (filter.with_commit || filter.no_commit ||
+			 filter.points_at.nr || filter.merge_commit ||
+			 filter.lines != -1)
+			cmdmode = 'l';
+	}
 
 	if ((create_tag_object || force) && (cmdmode != 0))
 		usage_with_options(git_tag_usage, options);
@@ -485,13 +494,15 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 		return ret;
 	}
 	if (filter.lines != -1)
-		die(_("-n option is only allowed with -l."));
+		die(_("-n option is only allowed in list mode"));
 	if (filter.with_commit)
-		die(_("--contains option is only allowed with -l."));
+		die(_("--contains option is only allowed in list mode"));
+	if (filter.no_commit)
+		die(_("--no-contains option is only allowed in list mode"));
 	if (filter.points_at.nr)
-		die(_("--points-at option is only allowed with -l."));
+		die(_("--points-at option is only allowed in list mode"));
 	if (filter.merge_commit)
-		die(_("--merged and --no-merged option are only allowed with -l"));
+		die(_("--merged and --no-merged options are only allowed in list mode"));
 	if (cmdmode == 'd')
 		return for_each_tag_name(argv, delete_tag, NULL);
 	if (cmdmode == 'v') {

contrib/completion/git-completion.bash

@@ -1194,7 +1194,7 @@ _git_branch ()
 	--*)
 		__gitcomp "
 			--color --no-color --verbose --abbrev= --no-abbrev
-			--track --no-track --contains --merged --no-merged
+			--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
@@ -3023,7 +3023,7 @@ _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

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_WITH(v, h) _OPT_CONTAINS_OR_WITH("with", v, h, PARSE_OPT_HIDDEN)
+#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 | PARSE_OPT_NONEG)
+#define OPT_WITHOUT(v, h) _OPT_CONTAINS_OR_WITH("without", v, h, PARSE_OPT_HIDDEN | PARSE_OPT_NONEG)
 
 #endif

ref-filter.c

@@ -1487,6 +1487,7 @@ struct ref_filter_cbdata {
 	struct ref_array *array;
 	struct ref_filter *filter;
 	struct contains_cache contains_cache;
+	struct contains_cache no_contains_cache;
 };
 
 /*
@@ -1586,11 +1587,11 @@ static enum contains_result contains_tag_algo(struct commit *candidate,
 }
 
 static int commit_contains(struct ref_filter *filter, struct commit *commit,
-			   struct contains_cache *cache)
+			   struct commit_list *list, struct contains_cache *cache)
 {
 	if (filter->with_commit_tag_algo)
-		return contains_tag_algo(commit, filter->with_commit, cache) == CONTAINS_YES;
+		return contains_tag_algo(commit, list, cache) == CONTAINS_YES;
-	return is_descendant_of(commit, filter->with_commit);
+	return is_descendant_of(commit, list);
 }
 
 /*
@@ -1780,13 +1781,17 @@ 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, &ref_cbdata->contains_cache))
+		    !commit_contains(filter, commit, filter->with_commit, &ref_cbdata->contains_cache))
+			return 0;
+		/* ...or for the `--no-contains' option */
+		if (filter->no_commit &&
+		    commit_contains(filter, commit, filter->no_commit, &ref_cbdata->no_contains_cache))
 			return 0;
 	}
 
@@ -1887,6 +1892,7 @@ int filter_refs(struct ref_array *array, struct ref_filter *filter, unsigned int
 	filter->kind = type & FILTER_REFS_KIND_MASK;
 
 	init_contains_cache(&ref_cbdata.contains_cache);
+	init_contains_cache(&ref_cbdata.no_contains_cache);
 
 	/*  Simple per-ref filtering */
 	if (!filter->kind)
@@ -1911,6 +1917,7 @@ int filter_refs(struct ref_array *array, struct ref_filter *filter, unsigned int
 	}
 
 	clear_contains_cache(&ref_cbdata.contains_cache);
+	clear_contains_cache(&ref_cbdata.no_contains_cache);
 
 	/*  Filters that need revision walking */
 	if (filter->merge_commit)
@@ -2084,8 +2091,17 @@ int parse_opt_merge_filter(const struct option *opt, const char *arg, int unset)
 {
 	struct ref_filter *rf = opt->value;
 	unsigned char sha1[20];
+	int no_merged = starts_with(opt->long_name, "no");
 
-	rf->merge = starts_with(opt->long_name, "no")
+	if (rf->merge) {
+		if (no_merged) {
+			return opterror(opt, "is incompatible with --merged", 0);
+		} else {
+			return opterror(opt, "is incompatible with --no-merged", 0);
+		}
+	}
+
+	rf->merge = no_merged
 		? REF_FILTER_MERGED_OMIT
 		: REF_FILTER_MERGED_INCLUDE;
 

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,

t/t3200-branch.sh

@@ -978,6 +978,10 @@ test_expect_success '--merged catches invalid object names' '
 	test_must_fail git branch --merged 0000000000000000000000000000000000000000
 '
 
+test_expect_success '--merged is incompatible with --no-merged' '
+	test_must_fail git branch --merged HEAD --no-merged HEAD
+'
+
 test_expect_success 'tracking with unexpected .fetch refspec' '
 	rm -rf a b c d &&
 	git init a &&

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 &&
@@ -126,10 +160,22 @@ 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
 
 '
 
+test_expect_success 'Assert that --contains only works on commits, not trees & blobs' '
+	test_must_fail git branch --contains master^{tree} &&
+	blob=$(git hash-object -w --stdin <<-\EOF
+	Some blob
+	EOF
+	) &&
+	test_must_fail git branch --contains $blob &&
+	test_must_fail git branch --no-contains $blob
+'
+
 # We want to set up a case where the walk for the tracking info
 # of one branch crosses the tip of another branch (and make sure
 # that the latter walk does not mess up our flag to see if it was
@@ -159,4 +205,15 @@ test_expect_success 'branch --merged with --verbose' '
 	test_i18ncmp expect actual
 '
 
+test_expect_success 'branch --contains combined with --no-contains' '
+	git branch --contains zzz --no-contains topic >actual &&
+	cat >expect <<-\EOF &&
+	  master
+	  side
+	  zzz
+	EOF
+	test_cmp expect actual
+
+'
+
 test_done

t/t6302-for-each-ref-filter.sh

@@ -93,6 +93,22 @@ test_expect_success 'filtering with --contains' '
 	test_cmp expect actual
 '
 
+test_expect_success 'filtering with --no-contains' '
+	cat >expect <<-\EOF &&
+	refs/tags/one
+	EOF
+	git for-each-ref --format="%(refname)" --no-contains=two >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'filtering with --contains and --no-contains' '
+	cat >expect <<-\EOF &&
+	refs/tags/two
+	EOF
+	git for-each-ref --format="%(refname)" --contains=two --no-contains=three >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success '%(color) must fail' '
 	test_must_fail git for-each-ref --format="%(color)%(refname)"
 '
@@ -421,4 +437,8 @@ test_expect_success 'check %(if:notequals=<string>)' '
 	test_cmp expect actual
 '
 
+test_expect_success '--merged is incompatible with --no-merged' '
+	test_must_fail git for-each-ref --merged HEAD --no-merged HEAD
+'
+
 test_done

t/t7004-tag.sh

@@ -16,7 +16,6 @@ tag_exists () {
 	git show-ref --quiet --verify refs/tags/"$1"
 }
 
-# todo: git tag -l now returns always zero, when fixed, change this test
 test_expect_success 'listing all tags in an empty tree should succeed' '
 	git tag -l &&
 	git tag
@@ -119,6 +118,18 @@ test_expect_success 'listing all tags if one exists should succeed' '
 	git tag
 '
 
+cat >expect <<EOF
+mytag
+EOF
+test_expect_success 'Multiple -l or --list options are equivalent to one -l option' '
+	git tag -l -l >actual &&
+	test_cmp expect actual &&
+	git tag --list --list >actual &&
+	test_cmp expect actual &&
+	git tag --list -l --list >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success 'listing all tags if one exists should output that tag' '
 	test $(git tag -l) = mytag &&
 	test $(git tag) = mytag
@@ -136,9 +147,8 @@ test_expect_success \
 	'listing a tag using a matching pattern should output that tag' \
 	'test $(git tag -l mytag) = mytag'
 
-# todo: git tag -l now returns always zero, when fixed, change this test
 test_expect_success \
-	'listing tags using a non-matching pattern should suceed' \
+	'listing tags using a non-matching pattern should succeed' \
 	'git tag -l xxx'
 
 test_expect_success \
@@ -338,6 +348,19 @@ test_expect_success 'tag -l can accept multiple patterns' '
 	test_cmp expect actual
 '
 
+# Between v1.7.7 & v2.13.0 a fair reading of the git-tag documentation
+# could leave you with the impression that "-l <pattern> -l <pattern>"
+# was how we wanted to accept multiple patterns.
+#
+# This test should not imply that this is a sane thing to support. but
+# since the documentation was worded like it was let's at least find
+# out if we're going to break this long-documented form of taking
+# multiple patterns.
+test_expect_success 'tag -l <pattern> -l <pattern> works, as our buggy documentation previously suggested' '
+	git tag -l "v1*" -l "v0*" >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success 'listing tags in column' '
 	COLUMNS=40 git tag -l --column=row >actual &&
 	cat >expected <<\EOF &&
@@ -620,6 +643,11 @@ test_expect_success \
 	git tag -n0 -l tag-one-line >actual &&
 	test_cmp expect actual &&
 
+	git tag -n0 | grep "^tag-one-line" >actual &&
+	test_cmp expect actual &&
+	git tag -n0 tag-one-line >actual &&
+	test_cmp expect actual &&
+
 	echo "tag-one-line    A msg" >expect &&
 	git tag -n1 -l | grep "^tag-one-line" >actual &&
 	test_cmp expect actual &&
@@ -633,6 +661,17 @@ test_expect_success \
 	test_cmp expect actual
 '
 
+test_expect_success 'The -n 100 invocation means -n --list 100, not -n100' '
+	>expect &&
+	git tag -n 100 >actual &&
+	test_cmp expect actual &&
+
+	git tag -m "A msg" 100 &&
+	echo "100             A msg" >expect &&
+	git tag -n 100 >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success \
 	'listing the zero-lines message of a non-signed tag should succeed' '
 	git tag -m "" tag-zero-lines &&
@@ -1383,6 +1422,23 @@ 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
@@ -1392,6 +1448,17 @@ 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
@@ -1401,6 +1468,19 @@ 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' '
@@ -1422,6 +1502,19 @@ 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
@@ -1436,6 +1529,20 @@ test_expect_success 'checking that original branch head has one tag now' "
 	test_cmp expected actual
 "
 
+cat > expected <<EOF
+v0.2.1
+v1.0
+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
@@ -1451,21 +1558,76 @@ test_expect_success 'checking that initial commit is in all tags' "
 	test_cmp expected actual
 "
 
+test_expect_success 'checking that --contains can be used in non-list mode' '
+	git tag --contains $hash1 v* >actual &&
+	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' '
 	test_must_fail git tag -a &&
+	test_must_fail git tag -a -l &&
+	test_must_fail git tag -s &&
+	test_must_fail git tag -s -l &&
+	test_must_fail git tag -m &&
+	test_must_fail git tag -m -l &&
+	test_must_fail git tag -m "hlagh" &&
+	test_must_fail git tag -m "hlagh" -l &&
+	test_must_fail git tag -F &&
+	test_must_fail git tag -F -l &&
+	test_must_fail git tag -f &&
+	test_must_fail git tag -f -l &&
+	test_must_fail git tag -a -s -m -F &&
+	test_must_fail git tag -a -s -m -F -l &&
 	test_must_fail git tag -l -v &&
-	test_must_fail git tag -n 100 &&
+	test_must_fail git tag -l -d &&
+	test_must_fail git tag -l -v -d &&
+	test_must_fail git tag -n 100 -v &&
 	test_must_fail git tag -l -m msg &&
 	test_must_fail git tag -l -F some file &&
-	test_must_fail git tag -v -s
+	test_must_fail git tag -v -s &&
+	test_must_fail git tag --contains tag-tree &&
+	test_must_fail git tag --contains tag-blob &&
+	test_must_fail git tag --no-contains tag-tree &&
+	test_must_fail git tag --no-contains tag-blob &&
+	test_must_fail git tag --contains --no-contains &&
+	test_must_fail git tag --no-with HEAD &&
+	test_must_fail git tag --no-without HEAD
 '
 
+for option in --contains --with --no-contains --without --merged --no-merged --points-at
+do
+	test_expect_success "mixing incompatible modes with $option is forbidden" "
+		test_must_fail git tag -d $option HEAD &&
+		test_must_fail git tag -d $option HEAD some-tag &&
+		test_must_fail git tag -v $option HEAD
+	"
+	test_expect_success "Doing 'git tag --list-like $option <commit> <pattern> is permitted" "
+		git tag -n $option HEAD HEAD &&
+		git tag $option HEAD HEAD &&
+		git tag $option
+	"
+done
+
 # check points-at
 
-test_expect_success '--points-at cannot be used in non-list mode' '
+test_expect_success '--points-at can be used in non-list mode' '
-	test_must_fail git tag --points-at=v4.0 foo
+	echo v4.0 >expect &&
+	git tag --points-at=v4.0 "v*" >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success '--points-at is a synonym for --points-at HEAD' '
+	echo v4.0 >expect &&
+	git tag --points-at >actual &&
+	test_cmp expect actual
 '
 
 test_expect_success '--points-at finds lightweight tags' '
@@ -1707,7 +1869,7 @@ run_with_limited_stack () {
 test_lazy_prereq ULIMIT_STACK_SIZE 'run_with_limited_stack true'
 
 # 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
@@ -1723,7 +1885,9 @@ 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_line_count ">" 10 actual
 '
 
 test_expect_success '--format should list tags as per format given' '
@@ -1742,8 +1906,17 @@ test_expect_success 'setup --merged test tags' '
 	git tag mergetest-3 HEAD
 '
 
-test_expect_success '--merged cannot be used in non-list mode' '
+test_expect_success '--merged can be used in non-list mode' '
-	test_must_fail git tag --merged=mergetest-2 foo
+	cat >expect <<-\EOF &&
+	mergetest-1
+	mergetest-2
+	EOF
+	git tag --merged=mergetest-2 "mergetest*" >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success '--merged is incompatible with --no-merged' '
+	test_must_fail git tag --merged HEAD --no-merged HEAD
 '
 
 test_expect_success '--merged shows merged tags' '
@@ -1763,6 +1936,11 @@ test_expect_success '--no-merged show unmerged tags' '
 	test_cmp expect actual
 '
 
+test_expect_success '--no-merged can be used in non-list mode' '
+	git tag --no-merged=mergetest-2 mergetest-* >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success 'ambiguous branch/tags not marked' '
 	git tag ambiguous &&
 	git branch ambiguous &&
@@ -1771,4 +1949,47 @@ test_expect_success 'ambiguous branch/tags not marked' '
 	test_cmp expect actual
 '
 
+test_expect_success '--contains combined with --no-contains' '
+	(
+		git init no-contains &&
+		cd no-contains &&
+		test_commit v0.1 &&
+		test_commit v0.2 &&
+		test_commit v0.3 &&
+		test_commit v0.4 &&
+		test_commit v0.5 &&
+		cat >expected <<-\EOF &&
+		v0.2
+		v0.3
+		v0.4
+		EOF
+		git tag --contains v0.2 --no-contains v0.5 >actual &&
+		test_cmp expected actual
+	)
+'
+
+# As the docs say, list tags which contain a specified *commit*. We
+# don't recurse down to tags for trees or blobs pointed to by *those*
+# commits.
+test_expect_success 'Does --[no-]contains stop at commits? Yes!' '
+	cd no-contains &&
+	blob=$(git rev-parse v0.3:v0.3.t) &&
+	tree=$(git rev-parse v0.3^{tree}) &&
+	git tag tag-blob $blob &&
+	git tag tag-tree $tree &&
+	git tag --contains v0.3 >actual &&
+	cat >expected <<-\EOF &&
+	v0.3
+	v0.4
+	v0.5
+	EOF
+	test_cmp expected actual &&
+	git tag --no-contains v0.3 >actual &&
+	cat >expected <<-\EOF &&
+	v0.1
+	v0.2
+	EOF
+	test_cmp expected actual
+'
+
 test_done