Handle repositories input with spaces between repositories

[niodice]

This action could handle a little more flexibility in the repositories input. A common mistake is to provide repositories: foo, bar instead of repositories: foo,bar if a token is needed for > 1 repository.

For example:

    - name: Generate Github Actions App token
      id: generate-token
      uses: actions/create-github-app-token@v1
      with:
        app-id: ${{ env.GH_APP_APP_ID }}
        private-key: ${{ env.GH_APP_PRIVATE_KEY }}
        repositories: foo, bar

Fails to get a token because the body in the HTTP request to GH will look like this:

body: '{"repositories":["foo"," bar"]}',

I think trimming the repos, something like repos = repos.map(r => r.trim()), would catch this and make for a more intuitive API

[gr2m]

Yes, we should definitely do that. Pull request welcome! Please add a test or update one of the existing ones 🙏

[krokofant]

Should trailing commas be trimmed as well? Seems these lines needs to be changed

create-github-app-token/lib/main.js

Line 147 in c8f55ef

repo: parsedRepositoryNames.split(",")[0],

create-github-app-token/lib/main.js

Line 157 in c8f55ef

repositoryNames: parsedRepositoryNames.split(","),

For just spaces

'a, b,c , d'.split(/\s*,\s*/)

With trailing commas:

'a, b,c , d,'.replace(/,\s*$/,'').split(/\s*,\s*/)