# HG changeset patch
# User Jeff Hammel <jhammel@mozilla.com>
# Date 1368788481 25200
# Node ID 44ec940c86a64aa49237cca0faaec60eaa0c0d55
# Parent  b878f4ce93fc71e0e68cd30f3d7bc188ee204aca
pull works, i think

diff -r b878f4ce93fc -r 44ec940c86a6 hq/main.py
--- a/hq/main.py	Fri May 17 03:19:28 2013 -0700
+++ b/hq/main.py	Fri May 17 04:01:21 2013 -0700
@@ -4,8 +4,6 @@
 mercurial queue extension front-end
 """
 
-# TODO: migrate to http://k0s.org/hg/CommandParser/
-
 import os
 import subprocess
 import sys
@@ -23,7 +21,6 @@
         """initialize global options"""
         # TODO: look at hgrc file
         # for [defaults] repository_host
-        # XXX ???
 
         # check for network
         self.network = network
@@ -77,21 +74,29 @@
         if mq is true, update the patch queue, if versioned
         """
         # check for outstanding changes
-        import pdb; pdb.set_trace()
-        output = self._call(['st']).strip()
-        lines = [line for line in output.splitlines()
-                 if not line.startswith('?')]
-        if lines:
+        output = self._status(self.root)
+        if output:
             print "Outstanding changes:"
             print output
             raise AssertionError
 
         applied, unapplied = self._series()
-        self._call(['qpop', '--all'])
-        self._call(['pull'] + (repo and [repo] or []))
+        self._call('qpop', '--all')
+        self._call(*(['pull'] + (repo and [repo] or [])))
         # TODO: pull queue repo
+        if self._versioned():
+            if self.incoming():
+                print >> sys.stderr, "Incoming changes, cannot pull"
+                # TODO: yes you can if they're compatible
+            else:
+                output = self._status(self.directory())
+                if output:
+                    print >> sys.stderr, "Cannot pull %s; outstanding changes" % (self.directory())
+                    print output
+                else:
+                    self._call('pull', '--mq')
         for patch in applied:
-            self._call(['qpush'])
+            self._call('qpush')
 
     def goto(self, patch):
         """
@@ -154,12 +159,18 @@
 
     def _series(self):
         """returns a 2-tuple of applied, unapplied"""
-        lines = self._command(['qseries']).strip()
+        lines = [line.strip()
+                 for line in self._call('qseries').strip().splitlines()]
         applied = []
         unapplied = []
         for line in lines:
-            line.strip()
-            index, status, name = line.split()
+
+            try:
+                index, status, name = line.split()
+            except:
+                print line
+                raise
+
             if status == 'A':
                 applied.append(name)
             else:
@@ -167,6 +178,18 @@
                 unapplied.append(name)
         return applied, unapplied
 
+    def _status(self, repo):
+        """get the status of a repo; if clean, return None, else
+        return the output of hg st"""
+
+        output = call([self.binary, 'st'], cwd=repo).strip()
+        lines = [line for line in output.splitlines()
+                 if not line.startswith('?')]
+        if lines:
+            return output
+
+
+        
 def main(args=sys.argv[1:]):
     parser = CommandParser(HQ)
     options, args = parser.parse_args(args)