# HG changeset patch
# User Thomas Arendsen Hein <thomas@intevation.de>
# Date 1308257254 -7200
# Node ID 93731b3efd0dfdffd96299ca4290752563c718b3
# Parent  a6a8809c6e3319e427b046c7a50ec674019eee0d
revset: add desc(string) to search in commit messages

Like keyword(), but does not search in filenames and users.
No grepdesc() or descgrep() added, because it might be bad to introduce
grepfoo() versions of too many string searches.

diff -r a6a8809c6e33 -r 93731b3efd0d mercurial/revset.py
--- a/mercurial/revset.py	Thu Jun 16 22:03:26 2011 +0200
+++ b/mercurial/revset.py	Thu Jun 16 22:47:34 2011 +0200
@@ -361,6 +361,19 @@
     dm = util.matchdate(ds)
     return [r for r in subset if dm(repo[r].date()[0])]
 
+def desc(repo, subset, x):
+    """``desc(string)``
+    Search commit message for string. The match is case-insensitive.
+    """
+    # i18n: "desc" is a keyword
+    ds = getstring(x, _("desc requires a string")).lower()
+    l = []
+    for r in subset:
+        c = repo[r]
+        if ds in c.description().lower():
+            l.append(r)
+    return l
+
 def descendants(repo, subset, x):
     """``descendants(set)``
     Changesets which are descendants of changesets in set.
@@ -821,6 +834,7 @@
     "closed": closed,
     "contains": contains,
     "date": date,
+    "desc": desc,
     "descendants": descendants,
     "file": hasfile,
     "filelog": filelog,
@@ -920,7 +934,8 @@
     elif op == 'func':
         f = getstring(x[1], _("not a symbol"))
         wa, ta = optimize(x[2], small)
-        if f in "grep date user author keyword branch file outgoing closed":
+        if f in ("author branch closed date desc file grep keyword "
+                 "outgoing user"):
             w = 10 # slow
         elif f in "modifies adds removes":
             w = 30 # slower
diff -r a6a8809c6e33 -r 93731b3efd0d tests/test-revset.t
--- a/tests/test-revset.t	Thu Jun 16 22:03:26 2011 +0200
+++ b/tests/test-revset.t	Thu Jun 16 22:47:34 2011 +0200
@@ -190,6 +190,8 @@
   1
   3
   5
+  $ log 'desc(B)'
+  5
   $ log 'descendants(2 or 3)'
   2
   3