add feature: newliner

[lunatic-fox]

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• PR does not match another non-stale PR currently opened

Features

This feature adds newliner.py and changes optimize_icons.yml to optimizer.yml.

About optimizer

optimizer workflow is triggered by any user commit to the pull request (synchronize) and by feature:icon label.

• synchronize - This trigger adds a newline at the end of each file that is missing it.
• feature:icon - This trigger optimizes any icon with SVGO, it also adds a newline at the end of the optimized icon.

This PR closes #1624 and changes #1554

Notes

We can change the label that triggers the icon optimization.

I've decided to make these two actions in one workflow, because some triggers are conflicting or not working properly, but if some way can be found to split them it would be nice to apply it.

[Snailedlt]

I suggest we use newline-action instead of making our own newline script. And also I would prefer it if the script was moved to a different workflow all together.

See comment below for more info

[Snailedlt]

Any reason why we can't use the newline-action?

Suggested change

	- name: Setup Python v3.10
	uses: actions/setup-python@v4
	with:
	python-version: '3.10'
	- name: Add newline
	run: python ./.github/scripts/newliner.py ${{ env.SVGO }}
	- name: Add newline
	uses: Logerfo/newline-action@0.0.4
	with:
	github-token: ${{ secrets.GITHUB_TOKEN }}

This would add newline to any file, not just SVG files.
It's also possible to ignore files in a config (see link above)

Come to think of it, maybe it would be better to add the newline in a separate script like this:

name: Add newline
on:
  pull_request:
    types: [synchronize, opened]
jobs:
  build:
    name: newline-action
    runs-on: ubuntu-16.04
    steps:
      - uses: actions/checkout@master
      - uses: Logerfo/newline-action@0.0.4
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }} # The `GITHUB_TOKEN` secret.
          config-path: .github/newline.yml # The path of the addtional configurations file.

[Panquesito7]

This sounds good to me. 👍

[canaleal]

Has not been updated in 2 years. Closing, but can be reopened.