phabdiff: allow reviewers to be used as a string

Summary: It was a list. Make it possible to use it as a string.

Reviewed By: xavierd

Differential Revision: D20144811

fbshipit-source-id: b280c0344215a4c23ab9c63d89f47adf34fb06f3

eden/scm/edenscm/hgext/phabdiff.py

@@ -59,5 +59,7 @@ def showreviewers(repo, ctx, templ, **args):
         descr = ctx.description()
         match = re.search("Reviewers:(.*)", descr)
         if match:
-            reviewers = filter(None, re.split(r"[\s,]", match.group(1)))
+            reviewers = list(filter(None, re.split(r"[\s,]", match.group(1))))
+        args = args.copy()
+        args["templ"] = " ".join(reviewers)
         return templatekw.showlist("reviewer", reviewers, args)

eden/scm/tests/test-fb-hgext-phabdiff.t

@@ -48,6 +48,8 @@ Test reviewers label
   $ echo f > f
   $ hg commit -Aqm "Differential Revision: http://phabricator.intern.facebook.com/D9876
   > Reviewers: xlwang, quark durham, rmcelroy"
+  $ hg log -r . --template '{reviewers}\n'
+  xlwang quark durham rmcelroy
   $ hg log -r . --template '{reviewers % "- {reviewer}\n"}\n'
   - xlwang
   - quark