Support for [http://fossil-scm.org Fossil] SCM Distributed Version Control System (DVCS)

git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@5457 ce84e21b-d406-0410-9b95-82705330c041

1 files changed, 50 insertions, 0 deletions

diff --git a/src/lib/Server/Plugins/Fossil.py b/src/lib/Server/Plugins/Fossil.py
new file mode 100644
index 000000000..e50a8caff
--- /dev/null
+++ b/src/lib/Server/Plugins/Fossil.py
@@ -0,0 +1,50 @@
+import os
+from subprocess import Popen, PIPE
+import Bcfg2.Server.Plugin
+
+# for debugging output only
+import logging
+logger = logging.getLogger('Bcfg2.Plugins.Fossil')
+
+class Fossil(Bcfg2.Server.Plugin.Plugin,
+             Bcfg2.Server.Plugin.Version):
+    name = 'Fossil'
+    __version__ = '$Id$'
+    __author__ = 'bcfg-dev@mcs.anl.gov'
+
+    def __init__(self, core, datastore):
+        Bcfg2.Server.Plugin.Plugin.__init__(self, core, datastore)
+        self.core = core
+        self.datastore = datastore
+
+        # path to fossil file for bcfg2 repo
+        fossil_file = "%s/_FOSSIL_" % datastore
+
+        # Read revision from bcfg2 repo
+        if os.path.isfile(fossil_file):
+            self.get_revision()
+        elif not os.path.isdir(datastore):
+            logger.error("%s is not a directory" % datastore)
+            raise Bcfg2.Server.Plugin.PluginInitError
+        else:
+            logger.error("%s is not a file" % fossil_file)
+            raise Bcfg2.Server.Plugin.PluginInitError
+
+        logger.debug("Initialized fossil plugin with fossil file = %s" % fossil_file)
+
+    def get_revision(self):
+        '''Read fossil revision information for the bcfg2 repository'''
+        try:
+            data = Popen("env LC_ALL=C fossil info", 
+                        shell=True,
+                        cwd=self.datastore,
+                        stdout=PIPE).stdout.readlines()
+            revline = [line.split(': ')[1].strip() for line in data if \
+                       line.split(': ')[0].strip() == 'checkout'][-1]
+            revision = revline.split(' ')[0]
+        except IndexError:
+            logger.error("Failed to read fossil info; disabling fossil support")
+            logger.error('''Ran command "fossil info" from directory "%s"''' % (self.datastore))
+            logger.error("Got output: %s" % data)
+            raise Bcfg2.Server.Plugin.PluginInitError
+        return revision