add has_in_tree_htaccess flag to template generator

Add a flag to tell us which projects have a .htaccess file in their
doc build output.

Change-Id: I0af0e32d9c646d61f4c72599cdc4613299aa5ec9
Depends-On: I236b7b0a9aae065167bd0aef316603d258e4c3c6
Signed-off-by: Doug Hellmann <doug@doughellmann.com>

doc/contributor-guide/source/doc-tools/template-generator.rst

@@ -142,6 +142,10 @@ include a link to that documentation on the templated landing pages.
 ``has_admin_guide``
     produces a link to docs.o.o/name/latest/admin/
 
+``has_in_tree_htaccess``
+    enables full redirects to old paths, not just to the top of
+    /name/latest/
+
 .. note::
 
    The documentation associated with the flags must exist before the

www/.htaccess

@@ -60,9 +60,17 @@ redirectmatch 301 "^/project-install-guide/ocata/(.*)$" /ocata/install/$1
 # Redirecting infra docs links to new developer location
 redirectmatch 301 "^/infra/shade(.*)$" /developer/shade$1
 
-# Redirecting old project developer docs to the new project home pages
+# Redirecting old project developer docs to the new layout. If a
-# while leaving the index / project list page as it is.
+# project has an in-tree .htaccess file, assume it can handle the full
-redirectmatch 301 "^/developer/([^/]+)/.*$" /$1/latest/
+# path in the redirect. Otherwise, redirect everything to the new
+# latest index.html.
+{% for project in projects|sort(attribute='name') -%}
+{%- if project.has_in_tree_htaccess %}
+redirectmatch 301 "^/developer/{{project.name}}/(.*)$" /{{project.name}}/latest/$1
+{%- else %}
+redirectmatch 301 "^/developer/{{project.name}}/.*$" /{{project.name}}/latest/
+{%- endif %}
+{%- endfor %}
 
 # Redirect old cli-reference to the OSC latest docs
 redirectmatch 301 "^/cli-reference/.*$" /python-openstackclient/latest/

www/project-data/schema.yaml

@@ -41,3 +41,5 @@ items:
       type: boolean
     has_user_guide:
       type: boolean
+    has_in_tree_htaccess:
+      type: boolean