Prepare the appservice spec for an r0 release

This puts the scaffolding in place for an r0 release to happen, such as the changelog and version variables.

changelogs/application_service/newsfragments/.gitignore

@@ -0,0 +1 @@
+!.gitignore

changelogs/application_service/pyproject.toml

@@ -0,0 +1,30 @@
+[tool.towncrier]
+    filename = "../application_service.rst"
+    directory = "newsfragments"
+    issue_format = "`#{issue} <https://github.com/matrix-org/matrix-doc/issues/{issue}>`_"
+    title_format = "{version}"
+    
+    [[tool.towncrier.type]]
+        directory = "breaking"
+        name = "Breaking Changes"
+        showcontent = true
+    
+    [[tool.towncrier.type]]
+        directory = "deprecation"
+        name = "Deprecations"
+        showcontent = true
+    
+    [[tool.towncrier.type]]
+        directory = "new"
+        name = "New Endpoints"
+        showcontent = true
+    
+    [[tool.towncrier.type]]
+        directory = "feature"
+        name = "Backwards Compatible Changes"
+        showcontent = true
+    
+    [[tool.towncrier.type]]
+        directory = "clarification"
+        name = "Spec Clarifications"
+        showcontent = true

scripts/gendoc.py

@@ -518,6 +518,10 @@ if __name__ == '__main__':
         "--server_release", "-s", action="store", default="unstable",
         help="The server-server release tag to generate, e.g. r1.2"
     )
+    parser.add_argument(
+        "--appservice_release", "-a", action="store", default="unstable",
+        help="The appservice release tag to generate, e.g. r1.2"
+    )
     parser.add_argument(
         "--list_targets", action="store_true",
         help="Do not update the specification. Instead print a list of targets.",
@@ -542,6 +546,8 @@ if __name__ == '__main__':
         "%CLIENT_MAJOR_VERSION%": "r0",
         "%SERVER_RELEASE_LABEL%": args.server_release,
         "%SERVER_MAJOR_VERSION%": extract_major(args.server_release),
+        "%APPSERVICE_MAJOR_VERSION%": "unstable",
+        "%APPSERVICE_RELEASE_LABEL%": args.appservice_release,
     }
 
     exit (main(args.target or ["all"], args.dest, args.nodelete, substitutions))

scripts/templating/matrix_templates/sections.py

@@ -32,6 +32,10 @@ class MatrixSections(Sections):
         changelogs = self.units.get("changelogs")
         return changelogs["client_server"]
 
+    def render_application_service_changelog(self):
+        changelogs = self.units.get("changelogs")
+        return changelogs["application_service"]
+
     def _render_events(self, filterFn, sortFn):
         template = self.env.get_template("events.tmpl")
         examples = self.units.get("event_examples")

scripts/templating/matrix_templates/units.py

@@ -754,6 +754,7 @@ class MatrixUnits(Units):
     def load_apis(self, substitutions):
         cs_ver = substitutions.get("%CLIENT_RELEASE_LABEL%", "unstable")
         fed_ver = substitutions.get("%SERVER_RELEASE_LABEL%", "unstable")
+        as_ver = substitutions.get("%APPSERVICE_RELEASE_LABEL%", "unstable")
 
         # we abuse the typetable to return this info to the templates
         return TypeTable(rows=[
@@ -766,8 +767,8 @@ class MatrixUnits(Units):
                 fed_ver,
                 "Federation between servers",
             ), TypeTableRow(
-                "`Application Service API <application_service/unstable.html>`_",
+                "`Application Service API <application_service/"+as_ver+".html>`_",
-                "unstable",
+                as_ver,
                 "Privileged server plugins",
             ), TypeTableRow(
                 "`Identity Service API <identity_service/unstable.html>`_",

specification/application_service_api.rst

@@ -30,13 +30,21 @@ irrespective of the underlying homeserver implementation.
 .. contents:: Table of Contents
 .. sectnum::
 
-Specification version
+Changelog
----------------------
+---------
+
+
+.. topic:: Version: unstable
+{{application_service_changelog}}
 
 This version of the specification is generated from
 `matrix-doc <https://github.com/matrix-org/matrix-doc>`_ as of Git commit
 `{{git_version}} <https://github.com/matrix-org/matrix-doc/tree/{{git_rev}}>`_.
 
+For the full historical changelog, see
+https://github.com/matrix-org/matrix-doc/blob/master/changelogs/application_service.rst
+
+
 Application Services
 --------------------
 Application services are passive and can only observe events from a given

specification/targets.yaml

@@ -13,7 +13,7 @@ targets:
   application_service:
     files:
       - application_service_api.rst
-    version_label: unstable
+    version_label: "%APPSERVICE_RELEASE_LABEL%"
   server_server:
     files:
       - server_server_api.rst