adding hg support to roslib

core/roslib/src/roslib/vcs/hg.py

@@ -0,0 +1,86 @@
+# Software License Agreement (BSD License)
+#
+# Copyright (c) 2010, Willow Garage, Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+#  * Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above
+#    copyright notice, this list of conditions and the following
+#    disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of Willow Garage, Inc. nor the names of its
+#    contributors may be used to endorse or promote products derived
+#    from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+"""
+hg vcs support.
+
+New in ROS C-Turtle.
+"""
+
+import subprocess
+import os
+import vcs_base
+
+class HGClient(vcs_base.VCSClientBase):
+    def get_url(self):
+        """
+        @return: HG URL of the directory path (output of hg paths command), or None if it cannot be determined
+        """
+        if self.detect_presence():
+            output = subprocess.Popen(["hg", "paths", "default"], cwd=self._path, stdout=subprocess.PIPE).communicate()[0]
+            return output.rstrip()
+        return None
+
+    def detect_presence(self):
+        return self.path_exists() and os.path.isdir(os.path.join(self._path, '.hg'))
+
+
+    def checkout(self, url, version=''):
+        if self.path_exists():
+            print >>sys.stderr, "Error: cannnot checkout into existing directory"
+            return False
+            
+        cmd = "hg clone %s %s"%(url, self._path)
+        if not subprocess.check_call(cmd, shell=True) == 0:
+            return False
+        cmd = "hg checkout %s"%(version)
+        if not subprocess.check_call(cmd, cwd=self._path, shell=True) == 0:
+            return False
+        return True
+
+    def update(self, version=''):
+        if not self.detect_presence():
+            return False
+        cmd = "hg pull"
+        if not subprocess.check_call(cmd, cwd=self._path, shell=True) == 0:
+            return False
+        cmd = "hg checkout %s"%version
+        if not subprocess.check_call(cmd, cwd=self._path, shell=True) == 0:
+            return False
+        return True
+        
+    def get_vcs_type_name(self):
+        return 'hg'
+
+    def get_version(self):
+        output = subprocess.Popen(['hg', 'identify', "-i", self._path], stdout=subprocess.PIPE).communicate()[0]
+        return output.strip()