on:

workflow_call:

inputs:

files:

required: false

type: string

default: "**/*"

files_ignore:

required: false

type: string

default: ""

dir_names:

required: false

type: boolean

default: false

outputs:

any_changed:

description: "Whether any files changed"

value: ${{ jobs.changed-files.outputs.any_changed }}

changed_files:

description: "All changed files"

value: ${{ jobs.changed-files.outputs.changed_files }}

permissions:

contents: read

jobs:

changed-files:

runs-on: ubuntu-latest

permissions:

contents: read

outputs:

any_changed: ${{ fromJson(steps.changed-files.outputs.result).any_changed }}

changed_files: ${{ fromJson(steps.changed-files.outputs.result).changed_files }}

steps:

- uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6

- name: Install micromatch

run: npm i -D micromatch@4.0.8

- uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8

id: changed-files

env:

files: ${{ inputs.files }}

files_ignore: ${{ inputs.files_ignore }}

dir_names: ${{ inputs.dir_names }}

with:

script: |

const path = require('path')

const micromatch = require('micromatch')

let base, head

if (context.eventName === 'pull_request') {

base = context.payload.pull_request.base.sha

head = context.payload.pull_request.head.sha

} else if (context.eventName === 'push') {

base = context.payload.before

head = context.payload.after

} else {

throw new Error('Unsupported event type: ' + context.eventName)

}

const patternsToMatch = process.env.files.split('\n').filter(Boolean)

const patternsToIgnore = process.env.files_ignore.split('\n').filter(Boolean)

console.log(`Getting changed files between ${base} and ${head}`)

const { data: { files } } = await github.rest.repos.compareCommits({

owner: context.payload.repository.owner.login,

repo: context.payload.repository.name,

base,

head,

})

const onlyNames = [...new Set(files.map(file => process.env.dir_names == 'true' ? path.dirname(file.filename) : file.filename))]

console.log('All changed files:', onlyNames)

const allPatterns = [...patternsToMatch, ...patternsToIgnore.map(pattern => `!${pattern}`)]

console.log('All patterns:', allPatterns)

const afterPatterns = micromatch(onlyNames, allPatterns, { dot: true })

console.log('After patterns:', afterPatterns)

return {

any_changed: afterPatterns.length > 0,

changed_files: afterPatterns.join(' '),

}