--- a/mercurial/revset.py Fri Apr 10 22:22:09 2020 +0800
+++ b/mercurial/revset.py Fri Apr 10 22:23:44 2020 +0800
@@ -247,7 +247,15 @@
def relationset(repo, subset, x, y, order):
- raise error.ParseError(_(b"can't use a relation in this context"))
+ # this is pretty basic implementation of 'x#y' operator, still
+ # experimental so undocumented. see the wiki for further ideas.
+ # https://www.mercurial-scm.org/wiki/RevsetOperatorPlan
+ rel = getsymbol(y)
+ if rel in relations:
+ return relations[rel](repo, subset, x, rel, order)
+
+ relnames = [r for r in relations.keys() if len(r) > 1]
+ raise error.UnknownIdentifier(rel, relnames)
def _splitrange(a, b):
@@ -281,6 +289,11 @@
return ancdepths, descdepths
+def generationsrel(repo, subset, x, rel, order):
+ z = (b'rangeall', None)
+ return generationssubrel(repo, subset, x, rel, z, order)
+
+
def generationssubrel(repo, subset, x, rel, z, order):
# TODO: rewrite tests, and drop startdepth argument from ancestors() and
# descendants() predicates
@@ -2649,6 +2662,11 @@
b"smartset": rawsmartset,
}
+relations = {
+ b"g": generationsrel,
+ b"generations": generationsrel,
+}
+
subscriptrelations = {
b"g": generationssubrel,
b"generations": generationssubrel,