[PATCH 2 of 8 hglib] client: add diff command

[Idan Kamara]

# HG changeset patch
# User Idan Kamara <idankk86 at gmail.com>
# Date 1313437605 -10800
# Node ID d31db408250057f30cba3c89477c597f5451b68d
# Parent  6921f7ffbfe063973f4e1723f3b62adacaa73b1f
client: add diff command

diff -r 6921f7ffbfe0 -r d31db4082500 hglib/client.py
--- a/hglib/client.py	Mon Aug 15 22:46:45 2011 +0300
+++ b/hglib/client.py	Mon Aug 15 22:46:45 2011 +0300
@@ -340,6 +340,22 @@
         out = self.rawcommand(args, eh=eh)
         return not warnings[0]
 
+    def diff(self, files=[], revs=[], change=None, text=False,
+             git=False, nodates=False, showfunction=False, reverse=False,
+             ignoreallspace=False, ignorespacechange=False, ignoreblanklines=False,
+             unified=None, stat=False, subrepos=False, include=None, exclude=None):
+            if change and revs:
+                raise ValueError('cannot specify both change and rev')
+
+            args = cmdbuilder('diff', *files, r=revs, c=change,
+                              a=text, g=git, nodates=nodates,
+                              p=showfunction, reverse=reverse,
+                              w=ignoreallspace, b=ignorespacechange,
+                              B=ignoreblanklines, U=unified, stat=stat,
+                              S=subrepos, I=include, X=exclude)
+
+            return self.rawcommand(args)
+
     def import_(self, patches, strip=None, force=False, nocommit=False,
                 bypass=False, exact=False, importbranch=False, message=None,
                 date=None, user=None, similarity=None):
diff -r 6921f7ffbfe0 -r d31db4082500 tests/test-diff.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-diff.py	Mon Aug 15 22:46:45 2011 +0300
@@ -0,0 +1,40 @@
+import common
+
+class test_diff(common.basetest):
+    def test_basic(self):
+        self.append('a', 'a\n')
+        self.client.add('a')
+        diff1 = """diff -r 000000000000 a
+--- /dev/null
++++ b/a
+@@ -0,0 +1,1 @@
++a
+"""
+        self.assertEquals(diff1, self.client.diff(nodates=True))
+        self.assertEquals(diff1, self.client.diff(['a'], nodates=True))
+        rev0, node0 = self.client.commit('first')
+        diff2 = """diff -r 000000000000 -r %s a
+--- /dev/null
++++ b/a
+@@ -0,0 +1,1 @@
++a
+""" % node0[:12]
+        self.assertEquals(diff2, self.client.diff(change=rev0, nodates=True))
+        self.append('a', 'a\n')
+        rev1, node1 = self.client.commit('second')
+        diff3 = """diff -r %s a
+--- a/a
++++ b/a
+@@ -1,1 +1,2 @@
+ a
++a
+""" % node0[:12]
+        self.assertEquals(diff3, self.client.diff(revs=[rev0], nodates=True))
+        diff4 = """diff -r %s -r %s a
+--- a/a
++++ b/a
+@@ -1,1 +1,2 @@
+ a
++a
+""" % (node0[:12], node1[:12])
+        self.assertEquals(diff4, self.client.diff(revs=[rev0, rev1], nodates=True))