stage-output: fix the archiving of all files

The archival task currently relies on the content of all_sources,
but some files are renamed afterwards if their extensions match
one of the special extension of the list.
This means that few files from all_sources are not found and then
not compressed.
Change then the logic: simply discover all files inside logs
and compress all of them.

Change-Id: I7d34d7d90849736b7b842c0bdd67492816f98ebc

roles/stage-output/tasks/main.yaml

@@ -88,18 +88,25 @@
   tags:
    - skip_ansible_lint
 
+- block:
+    - name: Discover log files for compression
+      find:
+        paths: "{{ stage_dir }}/logs"
+        recurse: true
+        file_type: 'file'
+      register: log_files_to_compress
+
     # NOTE(andreaf) The ansible module does not support recursive archive, so
     # using gzip is the only option here. The good bit is that gzip itself is
     # almost idempotent, as it will not compress again files with .gz extension.
     # gzip will however return 1 if any compressed file is encountered, so we
     # must ignore that (there's no specific error code).
-- name: Archive everything from docs sources
+    - name: Archive everything from logs
-  shell: gzip --recursive --best {{ item.dest }} || true
+      shell: gzip --recursive --best {{ item.path }} || true
       args:
-    chdir: "{{ stage_dir }}"
+        chdir: "{{ stage_dir }}/logs"
-  with_items: "{{ all_sources }}"
+      with_items: "{{ log_files_to_compress.files }}"
-  when:
-    - stage_compress_logs
-    - item.type == 'logs'
       tags:
        - skip_ansible_lint
+  when:
+    - stage_compress_logs