gitlab-ci.yml: Fix aggregation logic

After the deployment of the new .workspace job and its application to
the aggregate-docs job, the job was subtly broken. The initial working
directory that the script was executing in was no longer the docs
directory but the root of the workspace.

Fix this by adjusting the logic slightly, this will also make the
rename of the aggregated git repository easier.

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@huawei.com>

.gitlab-ci.yml

@@ -67,18 +67,19 @@ deploy:
   stage: deploy
   script:
     - !reference [.workspace, script]
-    - git clone https://user:$OHOS_AGGREGATED_DOCS_TOKEN@git.ostc-eu.org/OSTC/infrastructure/openharmony-readthedocs-aggregated.git
-    - cd openharmony-readthedocs-aggregated
-    - git checkout origin/main # only main for now - needs to match the rules
-    - find . -maxdepth 1 -not -path ./.git -not -path . -exec rm -rf {} \;
-    - tar -c --dereference -C .. --exclude openharmony-readthedocs-aggregated --exclude ./.repo --exclude ./.git --exclude ./.gitlab-ci.yml . | tar -x
+    # We are in the root of the git-repo workspace.
+    - git clone https://user:$OHOS_AGGREGATED_DOCS_TOKEN@git.ostc-eu.org/OSTC/infrastructure/openharmony-readthedocs-aggregated.git aggregated
+    - (cd aggregated && git checkout origin/main) # only main for now - needs to match the rules
+    - (cd aggregated && find . -maxdepth 1 -not -path ./.git -not -path . -exec rm -rf {} \;)
+    - tar -c --dereference -C docs --exclude --exclude ./.git --exclude ./.gitlab-ci.yml . | tar -x -C aggregated
     # Commit and push back, if something changed.
     - |
+      cd aggregated;
       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 add -A;
         git commit -sm "$msg";
         git push origin HEAD:main;
       else