Make Towncrier compatible with the release script

CONTRIBUTING.md

@@ -89,6 +89,7 @@ it is not encouraged, you can use:
 - `pr-[PRNumber].type` for a PR with no related issue
 - `sdk-[iOSSDKIssueNumber].type` for a PR related a matrix-ios-sdk issue
 - `kit-[iOSKitIssueNumber].type` for a PR related a matrix-ios-kit issue
+- `x-nolink-[AnyNumber].type` for a PR with a change entry that will not have a link automatically appended. It must be used for internal project update only. `AnyNumber` should be a value that does not clash with existing files.
 
 To preview the changelog for pending changelog entries, use:
 

changelog.d/_template.md.jinja

@@ -25,13 +25,19 @@
         {%- set gh_issue = value.replace("#", "") -%}
         {{- links.append( "[#%s](%s/issues/%s)" | format(gh_issue, gh_element, gh_issue) ) | default("", True) -}}
     {%- elif value.startswith("pr-") %}
-        {%- set pr = value.replace("pr-", "#") -%}
-        {{- links.append(pr) | default("", True) -}}
+        {%- set pr = value.replace("pr-", "") -%}
+        {{- links.append( "[#%s](%s/pull/%s)" | format(pr, gh_sdk, pr) ) | default("", True) -}}
+    {%- elif value.startswith("x-nolink-") %}
+        {{- nil | default("", True) -}}
     {% else %}
         {{- links.append(value) | default("", True) -}}
     {% endif -%}
 {% endfor -%}
+{% if links|length == 0 %}
+- {{ text }}
+{% else %}
 - {{ text }} ({{ links | join(', ') }})
+{% endif %}
 {% endfor %}
 {% else %}
 - {{ sections[section][category]['']|join(', ') }}

changelog.d/pr-1196.build

@@ -0,0 +1 @@
+CHANGES.md: Use towncrier to manage the change log. More info in [CONTRIBUTING](CONTRIBUTING.md#changelog).