Allow kicking the SVN observer from an HTTP entry point.

For now just uses a hard-coded SVN URL, and never stores the last-seen
revision. As a result, it always examines all revisions.

attract_server/modules.py

@@ -1,9 +1,32 @@
+import logging
+
 from flask import Blueprint
 from pillar.api.utils import jsonify
 
 blueprint = Blueprint('attract', __name__)
+log = logging.getLogger(__name__)
 
 
 @blueprint.route('/jemoeder')
 def jemoeder():
     return jsonify({'je': 'moeder'})
+
+
+@blueprint.route('/subversion/kick')
+def subversion_kick():
+    from . import subversion
+
+    # TODO: each project should have its own SVN server.
+    svn_server_url = 'svn://localhost/agent327'
+    log.info('Re-examining SVN server %s', svn_server_url)
+    client = subversion.obtain(svn_server_url)
+
+    # TODO: last_seen_revision should be stored, probably at the project level.
+    last_seen_revision = 0
+    observer = subversion.CommitLogObserver(client, last_seen_revision=last_seen_revision)
+    observer.fetch_and_observe()
+
+    return jsonify({
+        'previous_last_seen_revision': last_seen_revision,
+        'last_seen_revision': observer.last_seen_revision,
+    })