On Thu, Sep 10, 2015 at 09:52:49PM +0530, Karthik Nayak wrote:
> Use 'ref-filter' APIs to implement the '--merged' and '--no-merged'
> options into 'tag.c'. The '--merged' option lets the user to only list
> tags merged into the named commit. The '--no-merged' option lets the
> user to only list tags not merged into the named commit. If no object
> is provided it assumes HEAD as the object.
>
> Add documentation and tests for the same.
>
> Mentored-by: Christian Couder <[email protected]>
> Mentored-by: Matthieu Moy <[email protected]>
> Signed-off-by: Karthik Nayak <[email protected]>
> ---
> Documentation/git-tag.txt | 7 ++++++-
> builtin/tag.c | 6 +++++-
> t/t7004-tag.sh | 27 +++++++++++++++++++++++++++
> 3 files changed, 38 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/git-tag.txt b/Documentation/git-tag.txt
> index 0c7f4e6..3803bf7 100644
> --- a/Documentation/git-tag.txt
> +++ b/Documentation/git-tag.txt
> @@ -14,7 +14,7 @@ SYNOPSIS
> 'git tag' -d <tagname>...
> 'git tag' [-n[<num>]] -l [--contains <commit>] [--points-at <object>]
> [--column[=<options>] | --no-column] [--create-reflog] [--sort=<key>]
> - [--format=<format>] [<pattern>...]
> + [--format=<format>] [--[no-]merged [<commit>]] [<pattern>...]
> 'git tag' -v <tagname>...
>
> DESCRIPTION
> @@ -165,6 +165,11 @@ This option is only applicable when listing tags without
> annotation lines.
> that of linkgit:git-for-each-ref[1]. When unspecified,
> defaults to `%(refname:short)`.
>
> +--[no-]merged [<commit>]::
We prefer to write --[no-]* as:
--option::
--no-option::
although this may be the first instance that we see this combination
with an argument.
I also found the "[<commit>]" syntax confusing and had to go and figure
out what PARSE_OPT_LASTARG_DEFAULT does; I wonder if it's worth
appending something like the following to the help for this option:
The `commit` may be omitted if this is the final argument.
> + 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
> diff --git a/builtin/tag.c b/builtin/tag.c
> index 075d90b..081fe84 100644
> --- a/builtin/tag.c
> +++ b/builtin/tag.c
> @@ -23,7 +23,7 @@ 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\t\t[--format=<format>] [<pattern>...]"),
> + "\n\t\t[--format=<format>] [--[no-]merged [<commit>]]
> [<pattern>...]"),
> N_("git tag -v <tagname>..."),
> NULL
> };
> @@ -359,6 +359,8 @@ int cmd_tag(int argc, const char **argv, const char
> *prefix)
> 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_WITH(&filter.with_commit, N_("print only tags that 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),
> {
> @@ -417,6 +419,8 @@ int cmd_tag(int argc, const char **argv, const char
> *prefix)
> die(_("--contains option is only allowed with -l."));
> if (filter.points_at.nr)
> die(_("--points-at option is only allowed with -l."));
> + if (filter.merge_commit)
> + die(_("--merged and --no-merged option are only allowed with
> -l"));
> if (cmdmode == 'd')
> return for_each_tag_name(argv, delete_tag);
> if (cmdmode == 'v')
> diff --git a/t/t7004-tag.sh b/t/t7004-tag.sh
> index 8987fb1..3dd2f51 100755
> --- a/t/t7004-tag.sh
> +++ b/t/t7004-tag.sh
> @@ -1531,4 +1531,31 @@ test_expect_success '--format should list tags as per
> format given' '
> test_cmp expect actual
> '
>
> +test_expect_success 'setup --merged test tags' '
> + git tag mergetest-1 HEAD~2 &&
> + git tag mergetest-2 HEAD~1 &&
> + git tag mergetest-3 HEAD
> +'
> +
> +test_expect_success '--merged cannot be used in non-list mode' '
> + test_must_fail git tag --merged=mergetest-2 foo
> +'
> +
> +test_expect_success '--merged shows merged tags' '
> + cat >expect <<-\EOF &&
> + mergetest-1
> + mergetest-2
> + EOF
> + git tag -l --merged=mergetest-2 mergetest-* >actual &&
> + test_cmp expect actual
> +'
> +
> +test_expect_success '--no-merged show unmerged tags' '
> + cat >expect <<-\EOF &&
> + mergetest-3
> + EOF
> + git tag -l --no-merged=mergetest-2 mergetest-* >actual &&
> + test_cmp expect actual
> +'
> +
> test_done
> --
> 2.5.1
>
> --
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