1 files changed, 38 insertions, 0 deletions
diff --git a/docs/_ext/ticket_role.py b/docs/_ext/ticket_role.py
new file mode 100644
index 0000000000..b53778558e
--- /dev/null
+++ b/docs/_ext/ticket_role.py
@@ -0,0 +1,38 @@
+"""
+An interpreted text role to link docs to Trac tickets.
+
+To use: :ticket:`XXXXX`
+
+Based on code from psycopg2 by Daniele Varrazzo.
+"""
+from docutils import nodes, utils
+from docutils.parsers.rst import roles
+
+
+def ticket_role(name, rawtext, text, lineno, inliner, options=None, content=None):
+    if options is None:
+        options = {}
+    try:
+        num = int(text.replace('#', ''))
+    except ValueError:
+        msg = inliner.reporter.error(
+            "ticket number must be... a number, got '%s'" % text)
+        prb = inliner.problematic(rawtext, rawtext, msg)
+        return [prb], [msg]
+
+    url_pattern = inliner.document.settings.env.app.config.ticket_url
+    if url_pattern is None:
+        msg = inliner.reporter.warning(
+            "ticket not configured: please configure ticket_url in conf.py")
+        prb = inliner.problematic(rawtext, rawtext, msg)
+        return [prb], [msg]
+
+    url = url_pattern % num
+    roles.set_classes(options)
+    node = nodes.reference(rawtext, '#' + utils.unescape(text), refuri=url, **options)
+    return [node], []
+
+
+def setup(app):
+    app.add_config_value('ticket_url', None, 'env')
+    app.add_role('ticket', ticket_role)