revset: add regular expression support to 'desc'
This is a case insensitive predicate like 'author', so it conforms to the
existing behavior of performing a case insensitive regex.
--- a/mercurial/revset.py Wed Jan 11 22:42:10 2017 -0500
+++ b/mercurial/revset.py Sat Jan 07 21:26:32 2017 -0500
@@ -814,15 +814,18 @@
@predicate('desc(string)', safe=True)
def desc(repo, subset, x):
"""Search commit message for string. The match is case-insensitive.
+
+ If `string` starts with `re:`, the remainder of the string is treated as
+ a regular expression. To match a substring that actually starts with `re:`,
+ use the prefix `literal:`.
"""
# i18n: "desc" is a keyword
- ds = encoding.lower(getstring(x, _("desc requires a string")))
-
- def matches(x):
- c = repo[x]
- return ds in encoding.lower(c.description())
-
- return subset.filter(matches, condrepr=('<desc %r>', ds))
+ ds = getstring(x, _("desc requires a string"))
+
+ kind, pattern, matcher = _substringmatcher(ds, casesensitive=False)
+
+ return subset.filter(lambda r: matcher(repo[r].description()),
+ condrepr=('<desc %r>', ds))
def _descendants(repo, subset, x, followfirst=False):
roots = getset(repo, fullreposet(repo), x)
--- a/tests/test-revset.t Wed Jan 11 22:42:10 2017 -0500
+++ b/tests/test-revset.t Sat Jan 07 21:26:32 2017 -0500
@@ -912,6 +912,9 @@
5
$ log 'desc(B)'
5
+ $ hg log -r 'desc(r"re:S?u")' --template "{rev} {desc|firstline}\n"
+ 5 5 bug
+ 6 6 issue619
$ log 'descendants(2 or 3)'
2
3