.gitlab-ci.yml: Flatten repository on openharmony-readthedocs-aggregated

This is currently only done for the main branch. For every new push to
this branch, the pipeline will push a flatten version of it on the main
branch of openharmony-readthedocs-aggregated referencing the origin
branch and SHA in the commit log.

Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>

.gitlab-ci.yml

@@ -72,19 +72,20 @@ deploy:
     - *doc-workspace-do
     - git clone https://user:$OHOS_AGGREGATED_DOCS_TOKEN@git.ostc-eu.org/OSTC/infrastructure/openharmony-readthedocs-aggregated.git
     - cd openharmony-readthedocs-aggregated
-    - git checkout test # TODO: switch to main / master
-    - find . -name '*.rst' -delete || true
-    - tar -c --dereference -C ../experimental . | tar -x
-    # Clean up files we don't want in the aggregated view
-    - rm -f .rst-aggregator Makefile
+    - git checkout origin/main # only main for now - needs to match the rules
+    - find . -maxdepth 1 -not -path ./.git -not -path . -exec rm -rf {} \;
+    - tar -c --dereference -C .. --exclude openharmony-readthedocs-aggregated --exclude ./.git . | tar -x
     # Commit and push back, if something changed.
-    - git config --local user.name "OpenHarmony Docs Build System"
-    - git config --local user.email "nobody@example.org"
-    - git add .
     - |
-        if ! git status; then
-          git commit -sm "Automatic snapshot update";
-          git push origin test;
-        fi
+      if [ -n "$(git status -s)" ]; then
+        msg="docs repository snapshot - $CI_COMMIT_BRANCH:$CI_COMMIT_SHA";
+        git config --local user.name "OpenHarmony CI";
+        git config --local user.email "ci@ostc-eu.org";
+        git add -A
+        git commit -sm "$msg";
+        git push origin HEAD:main;
+      else
+        echo "Nothing new to commit.";
+      fi
   rules:
-    - if: '$CI_COMMIT_BRANCH == "master"'
+    - if: '$CI_COMMIT_BRANCH == "main"'