# Posts a comment listing all the colors that changed in a PR

name: Diff

on:

pull_request:

branches-ignore:

- 'test/**'

jobs:

comment:

runs-on: ubuntu-latest

steps:

- name: Checkout repository

uses: actions/checkout@v2

- name: Set up node

uses: actions/setup-node@v2

with:

node-version: 14

- name: Create comment (if necessary)

uses: actions/github-script@v5

with:

script: |

const fs = require('fs')

const body = fs.readFileSync('.github/diff_comment_template.md', 'utf8')

const result = await github.rest.issues.listComments({

issue_number: context.issue.number,

owner: context.repo.owner,

repo: context.repo.repo

});

console.log(result.data)

const botComments = result.data.filter(c => c.user.login === 'github-actions[bot]')

if (!botComments.length) {

await github.rest.issues.createComment({

issue_number: context.issue.number,

owner: context.repo.owner,

repo: context.repo.repo,

body

})

}

diff:

needs: comment

runs-on: ubuntu-latest

steps:

- name: Checkout repository

uses: actions/checkout@v2

- name: Checkout base branch

uses: actions/checkout@v2

with:

ref: ${{ github.base_ref }}

path: base

- name: Set up Node

uses: actions/setup-node@v2

with:

node-version: 14

- name: Install dependencies

run: yarn

- name: Build

run: yarn build

- name: Install dependencies (base)

run: pushd base; yarn; popd

- name: Build (base)

run: pushd base; yarn build; popd

- name: Diff

uses: primer/comment-token-update@main

env:

GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

GITHUB_USER: github-actions[bot]

with:

# This action will find the first comment by `github-actions[bot]` and

# insert the diff data if `<!-- diff --><!-- /diff -->` is present in that comment.

# If there are multiple comments by `github-actions[bot]`

# or if `<!-- diff --><!-- /diff -->` is missing,

# this action may not work as expected.

comment-token: 'diff'

script: |

diff=$(for file in themes/*.json

do

diff -U 1 base/$file $file

done)

echo "\`\`\`diff"

if [[ $diff ]]

then

echo "$diff"

else

echo "No colors changed"

fi

echo "\`\`\`"