Add support for custom commit messages

[AnandChowdhary]

This PR fixes #32 by adding these options:

• signed-commit-message is the commit message when a new contributor signs the CLA in a PR
• signed-empty-commit-message is the commit message when a new contributor signs the CLA (empty)
• create-file-commit-message is the commit message when a new file is created

Usage example:

jobs:
  CLAssistant:
    runs-on: ubuntu-latest
    steps:
      - name: "CLA Assistant"
        if: (github.event.comment.body == 'recheckcla' || github.event.comment.body == 'I have read the CLA Document and I hereby sign the CLA') || github.event_name == 'pull_request'
        uses: cla-assistant/github-action@v1.4.2-alpha
        env: 
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with: 
          path-to-signatures: 'signatures/version1/cla.json'
          signed-commit-message: 'chore(cla): $contributorName has signed the CLA in #$pullRequestNo'
          create-file-commit-message: 'chore(cla): Creating file for storing CLA Signatures'

[CLAassistant]

All committers have signed the CLA.

[AnandChowdhary]

Now that I think about it, it would also be nice if we add support for a intro message by changing this line: https://github.com/cla-assistant/github-action/blob/master/src/pullRequestComment.ts#L34.

[ibakshay]

Hi @AnandChowdhary, Thank you very much for your contribution. I really appreciate it ..

Now that I think about it, it would also be nice if we add support for an intro message by changing this line:

Yep sure, even I thought about it. Please go ahead and feel free to do it 😄 . Then we can also support dynamic pull request comments.

The only thing you need to ensure is that I have read the CLA Document and I hereby sign the CLA content shouldn't be changed as we are recognizing this content as a signature. I'd like to keep this content as static.

[AnandChowdhary]

Please go ahead and feel free to do it

On it!

The only thing you need to ensure is that I have read the CLA Document and I hereby sign the CLA content shouldn't be changed as we are recognizing this content as a signature. I'd like to keep this content as static.

Yep, agreed, let's keep this static.

[AnandChowdhary]

Two new options have been added:

• all-signed-comment-message is the message when everyone has signed, defaults to **CLA Assistant Lite** All Contributors have signed the CLA. (edited)
• request-comment-message is the message when a user is requested to sign the CLA, defaults to **CLA Assistant Lite:** <br/>Thank you for your submission, we really appreciate it. Like many open-source projects, we ask that $you sign our [Contributor License Agreement]($pathToCLADocument) before we can accept your contribution. You can sign the CLA by just posting a Pull Request Comment same as the below format.

[ibakshay]

@AnandChowdhary awesome!. Could you also please include the inputs signed-commit-message and others which you added into the action.yml file? :) Then, I will merge your contribution 💯 ..

[ibakshay]

Thanks a lot for your contribution :) We really appreciate it..

[AnandChowdhary]

Forgot to add docs here, can you please add the new options to README?

[ibakshay]

Sure, no worries. I will do it :).

[AnandChowdhary]

This works great!

For people using Gitmoji, this is our configuration:

signed-commit-message: ":wrench: @$contributorName has signed the CLA in #$pullRequestNo"
signed-empty-commit-message: ":wrench: @$contributorName has signed the CLA"
create-file-commit-message: ":wrench: Creating a file for storing CLA signatures"
all-signed-comment-message: "✍️ All contributors have signed the CLA"
request-comment-message: "Thanks for your submission! We ask that $you sign our [Contributor License Agreement]($pathToCLADocument) before we can accept your contribution. You can sign the CLA by adding a comment below using this text:"

[ibakshay]

Awesomee!!.. I also tested yesterday. It works great 💯 ...
I am just curious. How did you get custom avatar for kojbot? Is it a GitHub App or GitHub Action?
Because for GitHub Action, as for as I know, we cannot have a custom avatar in place.

[AnandChowdhary]

No, it's a GitHub account with a personal access token being used instead of the default GITHUB_TOKEN: https://github.com/KojBot