Mercurial > hg
changeset 38275:f1d55ae2c5c8
revsets: define a none() revset
This can be useful for default values in corp-wide configuration
(e.g. for commits to hide, which defaults to none()), and perhaps in
scripts. I named it none() rather than empty() to match all().
Differential Revision: https://phab.mercurial-scm.org/D3713
| author | Martin von Zweigbergk <martinvonz@google.com> |
|---|---|
| date | Mon, 11 Jun 2018 11:37:21 -0700 |
| parents | 99188a7c8717 |
| children | fa4a286410a5 |
| files | mercurial/revset.py tests/test-revset2.t |
| diffstat | 2 files changed, 11 insertions(+), 0 deletions(-) [+] |
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--- a/mercurial/revset.py Mon Jun 11 19:24:01 2018 +0200 +++ b/mercurial/revset.py Mon Jun 11 11:37:21 2018 -0700 @@ -1346,6 +1346,14 @@ result = baseset([rn]) return result & subset +@predicate('none()', safe=True) +def none(repo, subset, x): + """No changesets. + """ + # i18n: "none" is a keyword + getargs(x, 0, 0, _("none takes no arguments")) + return baseset() + @predicate('obsolete()', safe=True) def obsolete(repo, subset, x): """Mutable changeset with a newer version."""
--- a/tests/test-revset2.t Mon Jun 11 19:24:01 2018 +0200 +++ b/tests/test-revset2.t Mon Jun 11 11:37:21 2018 -0700 @@ -584,6 +584,9 @@ hg: parse error: empty string is not a valid revision [255] +test empty revset + $ hg log 'none()' + we can use patterns when searching for tags $ log 'tag("1..*")'