Check extensions of VS Code extension pack are running smoothly

[benoitf]

Is your task related to a problem? Please describe.

#15272 would bring support of Extension pack
But each extension should be running properly when support will be there.
This issue is to ensure that all API/features are available in Che-Theia to make sure that these extensions are running properly.

Describe the solution you'd like

Check that all extensions of the packs are able to run smoothly on Eclipse Che.
It includes:

• Git Extension pack: https://marketplace.visualstudio.com/items?itemName=donjayamanne.git-extension-pack
• Java Extension pack: https://marketplace.visualstudio.com/items?itemName=vscjava.vscode-java-pack
• Php Extension pack: https://marketplace.visualstudio.com/items?itemName=felixfbecker.php-pack
• Python Extension pack: https://marketplace.visualstudio.com/items?itemName=donjayamanne.python-extension-pack
• NodeJS pack: https://marketplace.visualstudio.com/items?itemName=waderyan.nodejs-extension-pack

Of course, some "non-open-source" extensions shouldn't be checked

Additional context

As it's for test/checking if it's working, all extensions can be used in a single Che plugin meta.yaml.

[che-bot]

Issues go stale after 180 days of inactivity. lifecycle/stale issues rot after an additional 7 days of inactivity and eventually close.

Mark the issue as fresh with /remove-lifecycle stale in a new comment.

If this issue is safe to close now please do so.

Moderators: Add lifecycle/frozen label to avoid stale mode.

[sunix]

for the git extension pack:

• Git History (git log) - PR in progress feat(plugins): Add git history plugin che-plugin-registry#805
  That one works, there is a little ui bug, but it shouldn't be visible in most of the git repos, see comment: feat(plugins): Add git history plugin che-plugin-registry#805 (comment)
• Project Manager
  Detection of git projects is not working in Che. I have set a baseFolder. But it couldn't detect the projects (see screenshot [1].
  Also this is a lot about switching from one project to another where in che we would stay most of the time in the same window/workspace
  Tested with:

      - id: alefragnani/project-manager/latest
        type: chePlugin
        registryUrl: 'https://sunix-che-plugin-registry-dev-a62hi.surge.sh/v3'

• GitLens - already in the plugin registry
• gitignore
• Open in GitHub / Bitbucket / VisualStudio.com
  Not working ... executing the commands "Open in Github" or "Copy Github link to clipboard" don't do anything
  Tested with:

        - id: ziyasal/vscode-open-in-github/latest
          type: chePlugin
          registryUrl: 'https://sunix-che-plugin-registry-vscode-open-in-github-pat0d.surge.sh/v3'

Screenshots

• [1] Project manager
  

[l0rd]

Closing as we are sunsetting che-theia