fgmeta/svn_catalog_repository.py

import subprocess, os
import xml.etree.cElementTree as ET

class SVNCatalogRepository:
    def __init__(self, path):
        if not os.path.exists(path):
            raise RuntimeError("No directory at:" + path)

        self._path = path
        xml = subprocess.check_output(["svn", "info", "--xml", path])
        root = ET.fromstring(xml)

        if (root.find(".//repository/root") == None):
            raise RuntimeError("Not an SVN repository:" + path)

    def hasPathChanged(self, path, oldRevision):
        return self.scmRevisionForPath(path) != oldRevision

    def scmRevisionForPath(self, path):
        xml = subprocess.check_output(["svn", "info", "--xml", path])
        root = ET.fromstring(xml)
        commit = root.find(".//entry/commit")
        return commit.get('revision', 0)

    def update(self):
        subprocess.call(["svn", "update"])