[2.1.x] Replaced CVE/ticket roles with extlinks.

Backport of 44f98f7880 from master.

docs/_ext/cve_role.py

@@ -1,27 +0,0 @@
-"""
-An interpreted text role to link docs to CVE issues. To use: :cve:`XXXXX`
-"""
-from docutils import nodes, utils
-from docutils.parsers.rst import roles
-
-
-def cve_role(name, rawtext, text, lineno, inliner, options=None, content=None):
-    if options is None:
-        options = {}
-
-    url_pattern = inliner.document.settings.env.app.config.cve_url
-    if url_pattern is None:
-        msg = inliner.reporter.warning("cve not configured: please configure cve_url in conf.py")
-        prb = inliner.problematic(rawtext, rawtext, msg)
-        return [prb], [msg]
-
-    url = url_pattern % text
-    roles.set_classes(options)
-    node = nodes.reference(rawtext, utils.unescape('CVE-%s' % text), refuri=url, **options)
-    return [node], []
-
-
-def setup(app):
-    app.add_config_value('cve_url', None, 'env')
-    app.add_role('cve', cve_role)
-    return {'parallel_read_safe': True}

docs/_ext/ticket_role.py

@@ -1,39 +0,0 @@
-"""
-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)
-    return {'parallel_read_safe': True}

docs/conf.py

@@ -38,12 +38,16 @@ needs_sphinx = '1.6.0'
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
 extensions = [
     "djangodocs",
+    'sphinx.ext.extlinks',
     "sphinx.ext.intersphinx",
     "sphinx.ext.viewcode",
-    "ticket_role",
-    "cve_role",
 ]
 
+extlinks = {
+    'cve': ('https://nvd.nist.gov/view/vuln/detail?vulnId=%s', 'CVE-'),
+    'ticket': ('https://code.djangoproject.com/ticket/%s', '#'),
+}
+
 # Spelling check needs an additional module that is not installed by default.
 # Add it only if spelling check is requested so docs can be generated without it.
 if 'spelling' in sys.argv:
@@ -365,7 +369,3 @@ epub_cover = ('', 'epub-cover.html')
 
 # If false, no index is generated.
 # epub_use_index = True
-
-# -- custom extension options --------------------------------------------------
-cve_url = 'https://nvd.nist.gov/view/vuln/detail?vulnId=%s'
-ticket_url = 'https://code.djangoproject.com/ticket/%s'