Add wp language files on trellis deploy

deploy-hooks share-after.yml

---
- block:
  - name: Install language files
    command: wp core language install {{ item }}
    args:
      chdir: "{{ deploy_helper.new_release_path }}"
      # check for existance of po-file, language install should only run once:
      creates: "{{ deploy_helper.new_release_path }}/web/app/languages/{{ item }}.po"
    with_items: "{{ project.languages }}"
    
  # not sure if this is the best way to do this, but seems to work:
  - name: Get installed language files
    find:
      paths: "{{ deploy_helper.new_release_path }}/web/app/languages"
      patterns: "??.po,???.po,??_*.po"
    register: language_files

  # this should remove language files if languages are removed from the list:
  - name: Uninstall unused language files
    command: wp core language uninstall {{ item | splitext | first }}
    args:
      chdir: "{{ deploy_helper.new_release_path }}"
    #debug: msg="{{ item | splitext | first }}"
    with_items: "{{ language_files.files | map(attribute='path') | map('basename') | list }}"
    when: item | splitext | first not in project.languages
  
  # always run language update:
  - name: Install/update language files for core, plugins and themes
    command: wp core language update
    args:
      chdir: "{{ deploy_helper.new_release_path }}"
  
  when: project.languages is defined

deploy.yml

  ...
  # add share-after hook:
  vars:
    deploy_build_before: "{{ playbook_dir }}/deploy-hooks/build-before.yml"
    deploy_build_after: "{{ playbook_dir }}/roles/deploy/hooks/build-after.yml"
    deploy_share_after: "{{ playbook_dir }}/deploy-hooks/share-after.yml"
    deploy_finalize_before: "{{ playbook_dir }}/roles/deploy/hooks/finalize-before.yml"
    deploy_finalize_after: "{{ playbook_dir }}/roles/deploy/hooks/finalize-after.yml"
    ...

group_vars staging wordpress_sites.yml

wordpress_sites:
  example.com:
    site_hosts:
      - canonical: staging.example.com
        # redirects:
        #   - otherdomain.com
    local_path: ../site # path targeting local Bedrock site directory (relative to Ansible root)
    repo: git@github.com:example/example.com.git # replace with your Git repo URL
    repo_subtree_path: site # relative path to your Bedrock/WP directory in your repo
    branch: master
    multisite:
      enabled: false
    ssl:
      enabled: false
      provider: letsencrypt
    cache:
      enabled: false
    # add languages list, entries must be language codes as used by wp:
    languages:
      - de_DE
      - fr_FR

roles deploy defaults main.yml

...
# add languages folder to project_shared_children:
project_shared_children:
  - path: web/app/uploads
    src: uploads
  - path: web/app/languages
    src: languages
...