actions
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checkout
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Convert checkout to a regular action (#70)

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eric sciple 2019-12-03 10:28:59 -05:00 committed by GitHub
parent 50fbc622fc
commit e347bba93b
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33 changed files with 22256 additions and 62 deletions
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.eslintignore Normal file
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dist/
lib/
node_modules/

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.eslintrc.json Normal file
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{
"plugins": ["jest", "@typescript-eslint"],
"extends": ["plugin:github/es6"],
"parser": "@typescript-eslint/parser",
"parserOptions": {
"ecmaVersion": 9,
"sourceType": "module",
"project": "./tsconfig.json"
},
"rules": {
"eslint-comments/no-use": "off",
"import/no-namespace": "off",
"no-unused-vars": "off",
"@typescript-eslint/no-unused-vars": "error",
"@typescript-eslint/explicit-member-accessibility": ["error", {"accessibility": "no-public"}],
"@typescript-eslint/no-require-imports": "error",
"@typescript-eslint/array-type": "error",
"@typescript-eslint/await-thenable": "error",
"@typescript-eslint/ban-ts-ignore": "error",
"camelcase": "off",
"@typescript-eslint/camelcase": "error",
"@typescript-eslint/class-name-casing": "error",
"@typescript-eslint/explicit-function-return-type": ["error", {"allowExpressions": true}],
"@typescript-eslint/func-call-spacing": ["error", "never"],
"@typescript-eslint/generic-type-naming": ["error", "^[A-Z][A-Za-z]*$"],
"@typescript-eslint/no-array-constructor": "error",
"@typescript-eslint/no-empty-interface": "error",
"@typescript-eslint/no-explicit-any": "error",
"@typescript-eslint/no-extraneous-class": "error",
"@typescript-eslint/no-for-in-array": "error",
"@typescript-eslint/no-inferrable-types": "error",
"@typescript-eslint/no-misused-new": "error",
"@typescript-eslint/no-namespace": "error",
"@typescript-eslint/no-non-null-assertion": "warn",
"@typescript-eslint/no-object-literal-type-assertion": "error",
"@typescript-eslint/no-unnecessary-qualifier": "error",
"@typescript-eslint/no-unnecessary-type-assertion": "error",
"@typescript-eslint/no-useless-constructor": "error",
"@typescript-eslint/no-var-requires": "error",
"@typescript-eslint/prefer-for-of": "warn",
"@typescript-eslint/prefer-function-type": "warn",
"@typescript-eslint/prefer-includes": "error",
"@typescript-eslint/prefer-interface": "error",
"@typescript-eslint/prefer-string-starts-ends-with": "error",
"@typescript-eslint/promise-function-async": "error",
"@typescript-eslint/require-array-sort-compare": "error",
"@typescript-eslint/restrict-plus-operands": "error",
"semi": "off",
"@typescript-eslint/semi": ["error", "never"],
"@typescript-eslint/type-annotation-spacing": "error",
"@typescript-eslint/unbound-method": "error"
},
"env": {
"node": true,
"es6": true,
"jest/globals": true
}
}

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.github/workflows/test.yml vendored
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name: "test-local" name: Build and Test
on: on:
pull_request: pull_request:
push: push:
branches: branches:
- master - master
- 'releases/*' - releases/*
jobs: jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v1 # todo: switch to v2
- run: npm ci
- run: npm run build
- run: npm run format-check
- run: npm run lint
- run: npm run pack
- run: npm run gendocs
- name: Verify no unstaged changes
run: __test__/verify-no-unstaged-changes.sh
test: test:
strategy: strategy:
matrix: matrix:
os: [windows-latest, ubuntu-latest, macOS-latest] runs-on: [ubuntu-latest, macos-latest, windows-latest]
runs-on: ${{ matrix.os }} runs-on: ${{ matrix.runs-on }}
steps: steps:
- uses: actions/checkout@master # Clone this repo
- uses: ./ - name: Checkout
with: uses: actions/checkout@v1 # todo: switch to V2
ref: master
# Basic checkout
- name: Basic checkout
uses: ./
with:
ref: test-data/v2/basic
path: basic
- name: Verify basic
shell: bash
run: __test__/verify-basic.sh
# Clean
- name: Modify work tree
shell: bash
run: __test__/modify-work-tree.sh
- name: Clean checkout
uses: ./
with:
ref: test-data/v2/basic
path: basic
- name: Verify clean
shell: bash
run: __test__/verify-clean.sh
# Side by side
- name: Side by side checkout 1
uses: ./
with:
ref: test-data/v2/side-by-side-1
path: side-by-side-1
- name: Side by side checkout 2
uses: ./
with:
ref: test-data/v2/side-by-side-2
path: side-by-side-2
- name: Verify side by side
shell: bash
run: __test__/verify-side-by-side.sh
# LFS
- name: LFS checkout
uses: ./
with:
repository: actions/checkout # hardcoded, otherwise doesn't work from a fork
ref: test-data/v2/lfs
path: lfs
lfs: true
- name: Verify LFS
shell: bash
run: __test__/verify-lfs.sh

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lib/
node_modules/

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dist/
lib/
node_modules/

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.prettierrc.json Normal file
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{
"printWidth": 80,
"tabWidth": 2,
"useTabs": false,
"semi": false,
"singleQuote": true,
"trailingComma": "none",
"bracketSpacing": false,
"arrowParens": "avoid",
"parser": "typescript"
}

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CHANGELOG.md
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# Changelog # Changelog
## Unreleased Changes ## v2 (preview)
- N/A
## v1.2.0 - Improved fetch performance
- Reverted the breaking behavior change in v1.1.0 that broke custom authentication flows - The default behavior now fetches only the SHA being checked-out.
- Script authenticated git commands
- Persists `with.token` in the local git config.
- Enables your scripts to run authenticated git commands.
- Post-job cleanup removes the token.
- Coming soon: Opt out by setting `with.persist-credentials` to `false`.
- Creates a local branch
- No longer detached HEAD when checking out a branch.
- A local branch is created with the corresponding upstream branch set.
- Improved layout
- `with.path` is always relative to `github.workspace`.
- Aligns better with container actions, where `github.workspace` gets mapped in.
- Removed input `submodules`
## v1.1.0 (Not reccomended for use, this functionality will be ported to the 2.0 update)
- Persist `with.token` or `${{ github.token }}` into checkout repository's git config as `http.https://github.com/.extraheader=AUTHORIZATION: basic ***` to better support scripting git
## v1.0.0 ## v1
- Initial Release of the checkout action
Refer [here](https://github.com/actions/checkout/blob/v1/CHANGELOG.md) for the V1 changelog

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README.md
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<a href="https://github.com/actions/checkout"><img alt="GitHub Actions status" src="https://github.com/actions/checkout/workflows/test-local/badge.svg"></a> <a href="https://github.com/actions/checkout"><img alt="GitHub Actions status" src="https://github.com/actions/checkout/workflows/test-local/badge.svg"></a>
</p> </p>
# Checkout # Checkout V2 (preview)
This action checks out your repository to `$GITHUB_WORKSPACE`, so that your workflow can access the contents of your repository. This action checks-out your repository under `$GITHUB_WORKSPACE`, so your workflow can access it.
By default, this is equivalent to running `git fetch` and `git checkout $GITHUB_SHA`, so that you'll always have your repo contents at the version that triggered the workflow. By default, the repository that triggered the workflow is checked-out, for the ref/SHA that triggered the event.
See [here](https://help.github.com/en/articles/events-that-trigger-workflows) to learn what `$GITHUB_SHA` is for different kinds of events.
Refer [here](https://help.github.com/en/articles/events-that-trigger-workflows) to learn which commit `$GITHUB_SHA` points to for different events.
Refer [here](https://github.com/actions/checkout/blob/v1/README.md) for previous versions.
# Usage # Usage
See [action.yml](action.yml) <!-- start usage -->
Basic:
```yaml ```yaml
steps: - uses: actions/checkout@preview
- uses: actions/checkout@v1
- uses: actions/setup-node@v1
with: with:
node-version: 10.x # Repository name
- run: npm install # Default: ${{ github.repository }}
- run: npm test repository: ''
# Ref to checkout (SHA, branch, tag). For the repository that triggered the
# workflow, defaults to the ref/SHA for the event. Otherwise defaults to master.
ref: ''
# Access token for clone repository
# Default: ${{ github.token }}
token: ''
# Relative path under $GITHUB_WORKSPACE to place the repository
path: ''
# Whether to execute `git clean -ffdx && git reset --hard HEAD` before fetching
# Default: true
clean: ''
# Number of commits to fetch. 0 indicates all history.
# Default: 1
fetch-depth: ''
# Whether to download Git-LFS files
# Default: false
lfs: ''
``` ```
<!-- end usage -->
By default, the branch or tag ref that triggered the workflow will be checked out. If you wish to check out a different branch, a different repository or use different token to checkout, specify that using `with.ref`, `with.repository` and `with.token`. ## Checkout a different branch
## Checkout different branch from the workflow repository
```yaml ```yaml
- uses: actions/checkout@v1 - uses: actions/checkout@preview
with: with:
ref: some-branch ref: some-branch
``` ```
## Checkout different private repository ## Checkout a different, private repository
```yaml ```yaml
- uses: actions/checkout@v1 - uses: actions/checkout@preview
with: with:
repository: myAccount/myRepository repository: myAccount/myRepository
ref: refs/heads/master ref: refs/heads/master
token: ${{ secrets.GitHub_PAT }} # `GitHub_PAT` is a secret contains your PAT. token: ${{ secrets.GitHub_PAT }} # `GitHub_PAT` is a secret that contains your PAT
``` ```
> - `${{ github.token }}` is scoped to the current repository, so if you want to checkout another repository that is private you will need to provide your own [PAT](https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line). > - `${{ github.token }}` is scoped to the current repository, so if you want to checkout another repository that is private you will need to provide your own [PAT](https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line).
## Checkout private submodules
```yaml
- uses: actions/checkout@v1
with:
submodules: true # 'recursive' 'true' or 'false'
token: ${{ secrets.GitHub_PAT }} # `GitHub_PAT` is a secret contains your PAT.
```
> - Private submodules must be configured via `https` not `ssh`.
> - `${{ github.token }}` only has permission to the workflow triggering repository. If the repository contains any submodules that come from private repositories, you will need to add your [PAT](https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line) as secret and use the secret in `with.token` to make the `checkout` action work.
For more details, see [Contexts and expression syntax for GitHub Actions](https://help.github.com/en/articles/contexts-and-expression-syntax-for-github-actions) and [Creating and using encrypted secrets](https://help.github.com/actions/automating-your-workflow-with-github-actions/creating-and-using-encrypted-secrets)
# License # License
The scripts and documentation in this project are released under the [MIT License](LICENSE) The scripts and documentation in this project are released under the [MIT License](LICENSE)

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import {GitVersion} from '../lib/git-version'
describe('git-version tests', () => {
it('basics', async () => {
let version = new GitVersion('')
expect(version.isValid()).toBeFalsy()
version = new GitVersion('asdf')
expect(version.isValid()).toBeFalsy()
version = new GitVersion('1.2')
expect(version.isValid()).toBeTruthy()
expect(version.toString()).toBe('1.2')
version = new GitVersion('1.2.3')
expect(version.isValid()).toBeTruthy()
expect(version.toString()).toBe('1.2.3')
})
it('check minimum', async () => {
let version = new GitVersion('4.5')
expect(version.checkMinimum(new GitVersion('3.6'))).toBeTruthy()
expect(version.checkMinimum(new GitVersion('3.6.7'))).toBeTruthy()
expect(version.checkMinimum(new GitVersion('4.4'))).toBeTruthy()
expect(version.checkMinimum(new GitVersion('4.5'))).toBeTruthy()
expect(version.checkMinimum(new GitVersion('4.5.0'))).toBeTruthy()
expect(version.checkMinimum(new GitVersion('4.6'))).toBeFalsy()
expect(version.checkMinimum(new GitVersion('4.6.0'))).toBeFalsy()
expect(version.checkMinimum(new GitVersion('5.1'))).toBeFalsy()
expect(version.checkMinimum(new GitVersion('5.1.2'))).toBeFalsy()
version = new GitVersion('4.5.6')
expect(version.checkMinimum(new GitVersion('3.6'))).toBeTruthy()
expect(version.checkMinimum(new GitVersion('3.6.7'))).toBeTruthy()
expect(version.checkMinimum(new GitVersion('4.4'))).toBeTruthy()
expect(version.checkMinimum(new GitVersion('4.5'))).toBeTruthy()
expect(version.checkMinimum(new GitVersion('4.5.5'))).toBeTruthy()
expect(version.checkMinimum(new GitVersion('4.5.6'))).toBeTruthy()
expect(version.checkMinimum(new GitVersion('4.5.7'))).toBeFalsy()
expect(version.checkMinimum(new GitVersion('4.6'))).toBeFalsy()
expect(version.checkMinimum(new GitVersion('4.6.0'))).toBeFalsy()
expect(version.checkMinimum(new GitVersion('5.1'))).toBeFalsy()
expect(version.checkMinimum(new GitVersion('5.1.2'))).toBeFalsy()
})
})

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import * as assert from 'assert'
import * as path from 'path'
import {ISourceSettings} from '../lib/git-source-provider'
const originalGitHubWorkspace = process.env['GITHUB_WORKSPACE']
const gitHubWorkspace = path.resolve('/checkout-tests/workspace')
// Late bind
let inputHelper: any
// Mock @actions/core
let inputs = {} as any
const mockCore = jest.genMockFromModule('@actions/core') as any
mockCore.getInput = (name: string) => {
return inputs[name]
}
// Mock @actions/github
const mockGitHub = jest.genMockFromModule('@actions/github') as any
mockGitHub.context = {
repo: {
owner: 'some-owner',
repo: 'some-repo'
},
ref: 'refs/heads/some-ref',
sha: '1234567890123456789012345678901234567890'
}
// Mock ./fs-helper
const mockFSHelper = jest.genMockFromModule('../lib/fs-helper') as any
mockFSHelper.directoryExistsSync = (path: string) => path == gitHubWorkspace
describe('input-helper tests', () => {
beforeAll(() => {
// GitHub workspace
process.env['GITHUB_WORKSPACE'] = gitHubWorkspace
// Mocks
jest.setMock('@actions/core', mockCore)
jest.setMock('@actions/github', mockGitHub)
jest.setMock('../lib/fs-helper', mockFSHelper)
// Now import
inputHelper = require('../lib/input-helper')
})
beforeEach(() => {
// Reset inputs
inputs = {}
})
afterAll(() => {
// Reset GitHub workspace
delete process.env['GITHUB_WORKSPACE']
if (originalGitHubWorkspace) {
process.env['GITHUB_WORKSPACE'] = originalGitHubWorkspace
}
// Reset modules
jest.resetModules()
})
it('sets defaults', () => {
const settings: ISourceSettings = inputHelper.getInputs()
expect(settings).toBeTruthy()
expect(settings.accessToken).toBeFalsy()
expect(settings.clean).toBe(true)
expect(settings.commit).toBeTruthy()
expect(settings.commit).toBe('1234567890123456789012345678901234567890')
expect(settings.fetchDepth).toBe(1)
expect(settings.lfs).toBe(false)
expect(settings.ref).toBe('refs/heads/some-ref')
expect(settings.repositoryName).toBe('some-repo')
expect(settings.repositoryOwner).toBe('some-owner')
expect(settings.repositoryPath).toBe(gitHubWorkspace)
})
it('requires qualified repo', () => {
inputs.repository = 'some-unqualified-repo'
assert.throws(() => {
inputHelper.getInputs()
}, /Invalid repository 'some-unqualified-repo'/)
})
it('roots path', () => {
inputs.path = 'some-directory/some-subdirectory'
const settings: ISourceSettings = inputHelper.getInputs()
expect(settings.repositoryPath).toBe(
path.join(gitHubWorkspace, 'some-directory', 'some-subdirectory')
)
})
it('sets correct default ref/sha for other repo', () => {
inputs.repository = 'some-owner/some-other-repo'
const settings: ISourceSettings = inputHelper.getInputs()
expect(settings.ref).toBe('refs/heads/master')
expect(settings.commit).toBeFalsy()
})
it('sets ref to empty when explicit sha', () => {
inputs.ref = '1111111111222222222233333333334444444444'
const settings: ISourceSettings = inputHelper.getInputs()
expect(settings.ref).toBeFalsy()
expect(settings.commit).toBe('1111111111222222222233333333334444444444')
})
it('sets sha to empty when explicit ref', () => {
inputs.ref = 'refs/heads/some-other-ref'
const settings: ISourceSettings = inputHelper.getInputs()
expect(settings.ref).toBe('refs/heads/some-other-ref')
expect(settings.commit).toBeFalsy()
})
it('gives good error message for submodules input', () => {
inputs.submodules = 'true'
assert.throws(() => {
inputHelper.getInputs()
}, /The input 'submodules' is not supported/)
})
})

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__test__/modify-work-tree.sh Executable file
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#!/bin/bash
if [ ! -f "./basic/basic-file.txt" ]; then
echo "Expected basic file does not exist"
exit 1
fi
echo hello >> ./basic/basic-file.txt
echo hello >> ./basic/new-file.txt
git -C ./basic status

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__test__/ref-helper.test.ts Normal file
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import * as assert from 'assert'
import * as refHelper from '../lib/ref-helper'
import {IGitCommandManager} from '../lib/git-command-manager'
const commit = '1234567890123456789012345678901234567890'
let git: IGitCommandManager
describe('ref-helper tests', () => {
beforeEach(() => {
git = ({} as unknown) as IGitCommandManager
})
it('getCheckoutInfo requires git', async () => {
const git = (null as unknown) as IGitCommandManager
try {
await refHelper.getCheckoutInfo(git, 'refs/heads/my/branch', commit)
throw new Error('Should not reach here')
} catch (err) {
expect(err.message).toBe('Arg git cannot be empty')
}
})
it('getCheckoutInfo requires ref or commit', async () => {
try {
await refHelper.getCheckoutInfo(git, '', '')
throw new Error('Should not reach here')
} catch (err) {
expect(err.message).toBe('Args ref and commit cannot both be empty')
}
})
it('getCheckoutInfo sha only', async () => {
const checkoutInfo = await refHelper.getCheckoutInfo(git, '', commit)
expect(checkoutInfo.ref).toBe(commit)
expect(checkoutInfo.startPoint).toBeFalsy()
})
it('getCheckoutInfo refs/heads/', async () => {
const checkoutInfo = await refHelper.getCheckoutInfo(
git,
'refs/heads/my/branch',
commit
)
expect(checkoutInfo.ref).toBe('my/branch')
expect(checkoutInfo.startPoint).toBe('refs/remotes/origin/my/branch')
})
it('getCheckoutInfo refs/pull/', async () => {
const checkoutInfo = await refHelper.getCheckoutInfo(
git,
'refs/pull/123/merge',
commit
)
expect(checkoutInfo.ref).toBe('refs/remotes/pull/123/merge')
expect(checkoutInfo.startPoint).toBeFalsy()
})
it('getCheckoutInfo refs/tags/', async () => {
const checkoutInfo = await refHelper.getCheckoutInfo(
git,
'refs/tags/my-tag',
commit
)
expect(checkoutInfo.ref).toBe('refs/tags/my-tag')
expect(checkoutInfo.startPoint).toBeFalsy()
})
it('getCheckoutInfo unqualified branch only', async () => {
git.branchExists = jest.fn(async (remote: boolean, pattern: string) => {
return true
})
const checkoutInfo = await refHelper.getCheckoutInfo(git, 'my/branch', '')
expect(checkoutInfo.ref).toBe('my/branch')
expect(checkoutInfo.startPoint).toBe('refs/remotes/origin/my/branch')
})
it('getCheckoutInfo unqualified tag only', async () => {
git.branchExists = jest.fn(async (remote: boolean, pattern: string) => {
return false
})
git.tagExists = jest.fn(async (pattern: string) => {
return true
})
const checkoutInfo = await refHelper.getCheckoutInfo(git, 'my-tag', '')
expect(checkoutInfo.ref).toBe('refs/tags/my-tag')
expect(checkoutInfo.startPoint).toBeFalsy()
})
it('getCheckoutInfo unqualified ref only, not a branch or tag', async () => {
git.branchExists = jest.fn(async (remote: boolean, pattern: string) => {
return false
})
git.tagExists = jest.fn(async (pattern: string) => {
return false
})
try {
await refHelper.getCheckoutInfo(git, 'my-ref', '')
throw new Error('Should not reach here')
} catch (err) {
expect(err.message).toBe(
"A branch or tag with the name 'my-ref' could not be found"
)
}
})
it('getRefSpec requires ref or commit', async () => {
assert.throws(
() => refHelper.getRefSpec('', ''),
/Args ref and commit cannot both be empty/
)
})
it('getRefSpec sha + refs/heads/', async () => {
const refSpec = refHelper.getRefSpec('refs/heads/my/branch', commit)
expect(refSpec.length).toBe(1)
expect(refSpec[0]).toBe(`+${commit}:refs/remotes/origin/my/branch`)
})
it('getRefSpec sha + refs/pull/', async () => {
const refSpec = refHelper.getRefSpec('refs/pull/123/merge', commit)
expect(refSpec.length).toBe(1)
expect(refSpec[0]).toBe(`+${commit}:refs/remotes/pull/123/merge`)
})
it('getRefSpec sha + refs/tags/', async () => {
const refSpec = refHelper.getRefSpec('refs/tags/my-tag', commit)
expect(refSpec.length).toBe(1)
expect(refSpec[0]).toBe(`+${commit}:refs/tags/my-tag`)
})
it('getRefSpec sha only', async () => {
const refSpec = refHelper.getRefSpec('', commit)
expect(refSpec.length).toBe(1)
expect(refSpec[0]).toBe(commit)
})
it('getRefSpec unqualified ref only', async () => {
const refSpec = refHelper.getRefSpec('my-ref', '')
expect(refSpec.length).toBe(2)
expect(refSpec[0]).toBe('+refs/heads/my-ref*:refs/remotes/origin/my-ref*')
expect(refSpec[1]).toBe('+refs/tags/my-ref*:refs/tags/my-ref*')
})
it('getRefSpec refs/heads/ only', async () => {
const refSpec = refHelper.getRefSpec('refs/heads/my/branch', '')
expect(refSpec.length).toBe(1)
expect(refSpec[0]).toBe(
'+refs/heads/my/branch:refs/remotes/origin/my/branch'
)
})
it('getRefSpec refs/pull/ only', async () => {
const refSpec = refHelper.getRefSpec('refs/pull/123/merge', '')
expect(refSpec.length).toBe(1)
expect(refSpec[0]).toBe('+refs/pull/123/merge:refs/remotes/pull/123/merge')
})
it('getRefSpec refs/tags/ only', async () => {
const refSpec = refHelper.getRefSpec('refs/tags/my-tag', '')
expect(refSpec.length).toBe(1)
expect(refSpec[0]).toBe('+refs/tags/my-tag:refs/tags/my-tag')
})
})

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__test__/verify-basic.sh Executable file
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#!/bin/bash
if [ ! -f "./basic/basic-file.txt" ]; then
echo "Expected basic file does not exist"
exit 1
fi
# Verify auth token
cd basic
git fetch

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__test__/verify-clean.sh Executable file
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#!/bin/bash
if [[ "$(git -C ./basic status --porcelain)" != "" ]]; then
echo ----------------------------------------
echo git status
echo ----------------------------------------
git status
echo ----------------------------------------
echo git diff
echo ----------------------------------------
git diff
exit 1
fi

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__test__/verify-lfs.sh Executable file
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#!/bin/bash
if [ ! -f "./lfs/regular-file.txt" ]; then
echo "Expected regular file does not exist"
exit 1
fi
if [ ! -f "./lfs/lfs-file.bin" ]; then
echo "Expected lfs file does not exist"
exit 1
fi

17
__test__/verify-no-unstaged-changes.sh Executable file
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#!/bin/bash
if [[ "$(git status --porcelain)" != "" ]]; then
echo ----------------------------------------
echo git status
echo ----------------------------------------
git status
echo ----------------------------------------
echo git diff
echo ----------------------------------------
git diff
echo ----------------------------------------
echo Troubleshooting
echo ----------------------------------------
echo "::error::Unstaged changes detected. Locally try running: git clean -ffdx && npm ci && npm run all"
exit 1
fi

11
__test__/verify-side-by-side.sh Executable file
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#!/bin/bash
if [ ! -f "./side-by-side-1/side-by-side-test-file-1.txt" ]; then
echo "Expected file 1 does not exist"
exit 1
fi
if [ ! -f "./side-by-side-2/side-by-side-test-file-2.txt" ]; then
echo "Expected file 2 does not exist"
exit 1
fi

11
__test__/verify-submodules-not-checked-out.sh Executable file
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#!/bin/bash
if [ ! -f "./submodules-not-checked-out/regular-file.txt" ]; then
echo "Expected regular file does not exist"
exit 1
fi
if [ -f "./submodules-not-checked-out/submodule-level-1/submodule-file.txt" ]; then
echo "Unexpected submodule file exists"
exit 1
fi

33
action.yml
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@ -1,23 +1,28 @@
name: 'Checkout' name: 'Checkout'
description: 'Checkout a Git repository.' description: 'Checkout a Git repository'
inputs: inputs:
repository: repository:
description: 'Repository name' description: 'Repository name'
default: ${{ github.repository }}
ref: ref:
description: 'Ref to checkout (SHA, branch, tag)' description: >
Ref to checkout (SHA, branch, tag). For the repository that triggered the
workflow, defaults to the ref/SHA for the event. Otherwise defaults to master.
token: token:
description: 'Access token for clone repository' description: 'Access token for clone repository'
clean: default: ${{ github.token }}
description: 'If true, execute `execute git clean -ffdx && git reset --hard HEAD` before fetching'
default: true
submodules:
description: 'Whether to include submodules: false to exclude submodules, true to include only one level of submodules, or recursive to recursively clone submodules; defaults to false'
lfs:
description: 'Whether to download Git-LFS files; defaults to false'
fetch-depth:
description: 'The depth of commits to ask Git to fetch; defaults to no limit'
path: path:
description: 'Optional path to check out source code' description: 'Relative path under $GITHUB_WORKSPACE to place the repository'
clean:
description: 'Whether to execute `git clean -ffdx && git reset --hard HEAD` before fetching'
default: true
fetch-depth:
description: 'Number of commits to fetch. 0 indicates all history.'
default: 1
lfs:
description: 'Whether to download Git-LFS files'
default: false
runs: runs:
# Plugins live on the runner and are only available to a certain set of first party actions. using: node12
plugin: 'checkout' main: dist/index.js
post: dist/index.js

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dist/problem-matcher.json vendored Normal file
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{
"problemMatcher": [
{
"owner": "checkout-git",
"pattern": [
{
"regexp": "^(fatal|error): (.*)$",
"message": 2
}
]
}
]
}

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jest.config.js Normal file
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module.exports = {
clearMocks: true,
moduleFileExtensions: ['js', 'ts'],
testEnvironment: 'node',
testMatch: ['**/*.test.ts'],
testRunner: 'jest-circus/runner',
transform: {
'^.+\\.ts$': 'ts-jest'
},
verbose: true
}

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52
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{
"name": "checkout",
"version": "2.0.0",
"description": "checkout action",
"main": "lib/main.js",
"scripts": {
"build": "tsc",
"format": "prettier --write **/*.ts",
"format-check": "prettier --check **/*.ts",
"lint": "eslint src/**/*.ts",
"pack": "ncc build",
"gendocs": "node lib/misc/generate-docs.js",
"test": "jest",
"all": "npm run build && npm run format && npm run lint && npm run pack && npm run gendocs && npm test"
},
"repository": {
"type": "git",
"url": "git+https://github.com/actions/checkout.git"
},
"keywords": [
"github",
"actions",
"checkout"
],
"author": "GitHub",
"license": "MIT",
"bugs": {
"url": "https://github.com/actions/checkout/issues"
},
"homepage": "https://github.com/actions/checkout#readme",
"dependencies": {
"@actions/core": "^1.1.3",
"@actions/exec": "^1.0.1",
"@actions/github": "^1.1.0",
"@actions/io": "^1.0.1"
},
"devDependencies": {
"@types/jest": "^24.0.23",
"@types/node": "^12.7.12",
"@typescript-eslint/parser": "^2.8.0",
"@zeit/ncc": "^0.20.5",
"eslint": "^5.16.0",
"eslint-plugin-github": "^2.0.0",
"eslint-plugin-jest": "^22.21.0",
"jest": "^24.9.0",
"jest-circus": "^24.9.0",
"js-yaml": "^3.13.1",
"prettier": "^1.19.1",
"ts-jest": "^24.2.0",
"typescript": "^3.6.4"
}
}

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import * as fs from 'fs'
export function directoryExistsSync(path: string, required?: boolean): boolean {
if (!path) {
throw new Error("Arg 'path' must not be empty")
}
let stats: fs.Stats
try {
stats = fs.statSync(path)
} catch (error) {
if (error.code === 'ENOENT') {
if (!required) {
return false
}
throw new Error(`Directory '${path}' does not exist`)
}
throw new Error(
`Encountered an error when checking whether path '${path}' exists: ${error.message}`
)
}
if (stats.isDirectory()) {
return true
} else if (!required) {
return false
}
throw new Error(`Directory '${path}' does not exist`)
}
export function existsSync(path: string): boolean {
if (!path) {
throw new Error("Arg 'path' must not be empty")
}
try {
fs.statSync(path)
} catch (error) {
if (error.code === 'ENOENT') {
return false
}
throw new Error(
`Encountered an error when checking whether path '${path}' exists: ${error.message}`
)
}
return true
}
export function fileExistsSync(path: string): boolean {
if (!path) {
throw new Error("Arg 'path' must not be empty")
}
let stats: fs.Stats
try {
stats = fs.statSync(path)
} catch (error) {
if (error.code === 'ENOENT') {
return false
}
throw new Error(
`Encountered an error when checking whether path '${path}' exists: ${error.message}`
)
}
if (!stats.isDirectory()) {
return true
}
return false
}

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import * as core from '@actions/core'
import * as exec from '@actions/exec'
import * as fshelper from './fs-helper'
import * as io from '@actions/io'
import * as path from 'path'
import {GitVersion} from './git-version'
export interface IGitCommandManager {
branchDelete(remote: boolean, branch: string): Promise<void>
branchExists(remote: boolean, pattern: string): Promise<boolean>
branchList(remote: boolean): Promise<string[]>
checkout(ref: string, startPoint: string): Promise<void>
checkoutDetach(): Promise<void>
config(configKey: string, configValue: string): Promise<void>
configExists(configKey: string): Promise<boolean>
fetch(fetchDepth: number, refSpec: string[]): Promise<void>
getWorkingDirectory(): string
init(): Promise<void>
isDetached(): Promise<boolean>
lfsFetch(ref: string): Promise<void>
lfsInstall(): Promise<void>
log1(): Promise<void>
remoteAdd(remoteName: string, remoteUrl: string): Promise<void>
tagExists(pattern: string): Promise<boolean>
tryClean(): Promise<boolean>
tryConfigUnset(configKey: string): Promise<boolean>
tryDisableAutomaticGarbageCollection(): Promise<boolean>
tryGetFetchUrl(): Promise<string>
tryReset(): Promise<boolean>
}
export async function CreateCommandManager(
workingDirectory: string,
lfs: boolean
): Promise<IGitCommandManager> {
return await GitCommandManager.createCommandManager(workingDirectory, lfs)
}
class GitCommandManager {
private gitEnv = {
GIT_TERMINAL_PROMPT: '0', // Disable git prompt
GCM_INTERACTIVE: 'Never' // Disable prompting for git credential manager
}
private gitPath = ''
private lfs = false
private workingDirectory = ''
// Private constructor; use createCommandManager()
private constructor() {}
async branchDelete(remote: boolean, branch: string): Promise<void> {
const args = ['branch', '--delete', '--force']
if (remote) {
args.push('--remote')
}
args.push(branch)
await this.execGit(args)
}
async branchExists(remote: boolean, pattern: string): Promise<boolean> {
const args = ['branch', '--list']
if (remote) {
args.push('--remote')
}
args.push(pattern)
const output = await this.execGit(args)
return !!output.stdout.trim()
}
async branchList(remote: boolean): Promise<string[]> {
const result: string[] = []
// Note, this implementation uses "rev-parse --symbolic" because the output from
// "branch --list" is more difficult when in a detached HEAD state.
const args = ['rev-parse', '--symbolic']
if (remote) {
args.push('--remotes=origin')
} else {
args.push('--branches')
}
const output = await this.execGit(args)
for (let branch of output.stdout.trim().split('\n')) {
branch = branch.trim()
if (branch) {
result.push(branch)
}
}
return result
}
async checkout(ref: string, startPoint: string): Promise<void> {
const args = ['checkout', '--progress', '--force']
if (startPoint) {
args.push('-B', ref, startPoint)
} else {
args.push(ref)
}
await this.execGit(args)
}
async checkoutDetach(): Promise<void> {
const args = ['checkout', '--detach']
await this.execGit(args)
}
async config(configKey: string, configValue: string): Promise<void> {
await this.execGit(['config', configKey, configValue])
}
async configExists(configKey: string): Promise<boolean> {
const pattern = configKey.replace(/[^a-zA-Z0-9_]/g, x => {
return `\\${x}`
})
const output = await this.execGit(
['config', '--name-only', '--get-regexp', pattern],
true
)
return output.exitCode === 0
}
async fetch(fetchDepth: number, refSpec: string[]): Promise<void> {
const args = [
'-c',
'protocol.version=2',
'fetch',
'--no-tags',
'--prune',
'--progress',
'--no-recurse-submodules'
]
if (fetchDepth > 0) {
args.push(`--depth=${fetchDepth}`)
} else if (
fshelper.fileExistsSync(
path.join(this.workingDirectory, '.git', 'shallow')
)
) {
args.push('--unshallow')
}
args.push('origin')
for (const arg of refSpec) {
args.push(arg)
}
let attempt = 1
const maxAttempts = 3
while (attempt <= maxAttempts) {
const allowAllExitCodes = attempt < maxAttempts
const output = await this.execGit(args, allowAllExitCodes)
if (output.exitCode === 0) {
break
}
const seconds = this.getRandomIntInclusive(1, 10)
core.warning(
`Git fetch failed with exit code ${output.exitCode}. Waiting ${seconds} seconds before trying again.`
)
await this.sleep(seconds * 1000)
attempt++
}
}
getWorkingDirectory(): string {
return this.workingDirectory
}
async init(): Promise<void> {
await this.execGit(['init', this.workingDirectory])
}
async isDetached(): Promise<boolean> {
// Note, this implementation uses "branch --show-current" because
// "rev-parse --symbolic-full-name HEAD" can fail on a new repo
// with nothing checked out.
const output = await this.execGit(['branch', '--show-current'])
return output.stdout.trim() === ''
}
async lfsFetch(ref: string): Promise<void> {
const args = ['lfs', 'fetch', 'origin', ref]
let attempt = 1
const maxAttempts = 3
while (attempt <= maxAttempts) {
const allowAllExitCodes = attempt < maxAttempts
const output = await this.execGit(args, allowAllExitCodes)
if (output.exitCode === 0) {
break
}
const seconds = this.getRandomIntInclusive(1, 10)
core.warning(
`Git lfs fetch failed with exit code ${output.exitCode}. Waiting ${seconds} seconds before trying again.`
)
await this.sleep(seconds * 1000)
attempt++
}
}
async lfsInstall(): Promise<void> {
await this.execGit(['lfs', 'install', '--local'])
}
async log1(): Promise<void> {
await this.execGit(['log', '-1'])
}
async remoteAdd(remoteName: string, remoteUrl: string): Promise<void> {
await this.execGit(['remote', 'add', remoteName, remoteUrl])
}
async tagExists(pattern: string): Promise<boolean> {
const output = await this.execGit(['tag', '--list', pattern])
return !!output.stdout.trim()
}
async tryClean(): Promise<boolean> {
const output = await this.execGit(['clean', '-ffdx'], true)
return output.exitCode === 0
}
async tryConfigUnset(configKey: string): Promise<boolean> {
const output = await this.execGit(
['config', '--unset-all', configKey],
true
)
return output.exitCode === 0
}
async tryDisableAutomaticGarbageCollection(): Promise<boolean> {
const output = await this.execGit(['config', 'gc.auto', '0'], true)
return output.exitCode === 0
}
async tryGetFetchUrl(): Promise<string> {
const output = await this.execGit(
['config', '--get', 'remote.origin.url'],
true
)
if (output.exitCode !== 0) {
return ''
}
const stdout = output.stdout.trim()
if (stdout.includes('\n')) {
return ''
}
return stdout
}
async tryReset(): Promise<boolean> {
const output = await this.execGit(['reset', '--hard', 'HEAD'], true)
return output.exitCode === 0
}
static async createCommandManager(
workingDirectory: string,
lfs: boolean
): Promise<GitCommandManager> {
const result = new GitCommandManager()
await result.initializeCommandManager(workingDirectory, lfs)
return result
}
private async execGit(
args: string[],
allowAllExitCodes = false
): Promise<GitOutput> {
fshelper.directoryExistsSync(this.workingDirectory, true)
const result = new GitOutput()
const env = {}
for (const key of Object.keys(process.env)) {
env[key] = process.env[key]
}
for (const key of Object.keys(this.gitEnv)) {
env[key] = this.gitEnv[key]
}
const stdout: string[] = []
const options = {
cwd: this.workingDirectory,
env,
ignoreReturnCode: allowAllExitCodes,
listeners: {
stdout: (data: Buffer) => {
stdout.push(data.toString())
}
}
}
result.exitCode = await exec.exec(`"${this.gitPath}"`, args, options)
result.stdout = stdout.join('')
return result
}
private async initializeCommandManager(
workingDirectory: string,
lfs: boolean
): Promise<void> {
this.workingDirectory = workingDirectory
// Git-lfs will try to pull down assets if any of the local/user/system setting exist.
// If the user didn't enable `LFS` in their pipeline definition, disable LFS fetch/checkout.
this.lfs = lfs
if (!this.lfs) {
this.gitEnv['GIT_LFS_SKIP_SMUDGE'] = '1'
}
this.gitPath = await io.which('git', true)
// Git version
core.debug('Getting git version')
let gitVersion = new GitVersion()
let gitOutput = await this.execGit(['version'])
let stdout = gitOutput.stdout.trim()
if (!stdout.includes('\n')) {
const match = stdout.match(/\d+\.\d+(\.\d+)?/)
if (match) {
gitVersion = new GitVersion(match[0])
}
}
if (!gitVersion.isValid()) {
throw new Error('Unable to determine git version')
}
// Minimum git version
// Note:
// - Auth header not supported before 2.9
// - Wire protocol v2 not supported before 2.18
const minimumGitVersion = new GitVersion('2.18')
if (!gitVersion.checkMinimum(minimumGitVersion)) {
throw new Error(
`Minimum required git version is ${minimumGitVersion}. Your git ('${this.gitPath}') is ${gitVersion}`
)
}
if (this.lfs) {
// Git-lfs version
core.debug('Getting git-lfs version')
let gitLfsVersion = new GitVersion()
const gitLfsPath = await io.which('git-lfs', true)
gitOutput = await this.execGit(['lfs', 'version'])
stdout = gitOutput.stdout.trim()
if (!stdout.includes('\n')) {
const match = stdout.match(/\d+\.\d+(\.\d+)?/)
if (match) {
gitLfsVersion = new GitVersion(match[0])
}
}
if (!gitLfsVersion.isValid()) {
throw new Error('Unable to determine git-lfs version')
}
// Minimum git-lfs version
// Note:
// - Auth header not supported before 2.1
const minimumGitLfsVersion = new GitVersion('2.1')
if (!gitLfsVersion.checkMinimum(minimumGitLfsVersion)) {
throw new Error(
`Minimum required git-lfs version is ${minimumGitLfsVersion}. Your git-lfs ('${gitLfsPath}') is ${gitLfsVersion}`
)
}
}
// Set the user agent
const gitHttpUserAgent = `git/${gitVersion} (github-actions-checkout)`
core.debug(`Set git useragent to: ${gitHttpUserAgent}`)
this.gitEnv['GIT_HTTP_USER_AGENT'] = gitHttpUserAgent
}
private getRandomIntInclusive(minimum: number, maximum: number): number {
minimum = Math.floor(minimum)
maximum = Math.floor(maximum)
return Math.floor(Math.random() * (maximum - minimum + 1)) + minimum
}
private async sleep(milliseconds): Promise<void> {
return new Promise(resolve => setTimeout(resolve, milliseconds))
}
}
class GitOutput {
stdout = ''
exitCode = 0
}

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import * as core from '@actions/core'
import * as coreCommand from '@actions/core/lib/command'
import * as fs from 'fs'
import * as fsHelper from './fs-helper'
import * as gitCommandManager from './git-command-manager'
import * as io from '@actions/io'
import * as path from 'path'
import * as refHelper from './ref-helper'
import {IGitCommandManager} from './git-command-manager'
const authConfigKey = `http.https://github.com/.extraheader`
export interface ISourceSettings {
repositoryPath: string
repositoryOwner: string
repositoryName: string
ref: string
commit: string
clean: boolean
fetchDepth: number
lfs: boolean
accessToken: string
}
export async function getSource(settings: ISourceSettings): Promise<void> {
core.info(
`Syncing repository: ${settings.repositoryOwner}/${settings.repositoryName}`
)
const repositoryUrl = `https://github.com/${encodeURIComponent(
settings.repositoryOwner
)}/${encodeURIComponent(settings.repositoryName)}`
// Remove conflicting file path
if (fsHelper.fileExistsSync(settings.repositoryPath)) {
await io.rmRF(settings.repositoryPath)
}
// Create directory
let isExisting = true
if (!fsHelper.directoryExistsSync(settings.repositoryPath)) {
isExisting = false
await io.mkdirP(settings.repositoryPath)
}
// Git command manager
core.info(`Working directory is '${settings.repositoryPath}'`)
const git = await gitCommandManager.CreateCommandManager(
settings.repositoryPath,
settings.lfs
)
// Try prepare existing directory, otherwise recreate
if (
isExisting &&
!(await tryPrepareExistingDirectory(
git,
settings.repositoryPath,
repositoryUrl,
settings.clean
))
) {
await io.rmRF(settings.repositoryPath)
await io.mkdirP(settings.repositoryPath)
}
// Initialize the repository
if (
!fsHelper.directoryExistsSync(path.join(settings.repositoryPath, '.git'))
) {
await git.init()
await git.remoteAdd('origin', repositoryUrl)
}
// Disable automatic garbage collection
if (!(await git.tryDisableAutomaticGarbageCollection())) {
core.warning(
`Unable to turn off git automatic garbage collection. The git fetch operation may trigger garbage collection and cause a delay.`
)
}
// Remove possible previous extraheader
await removeGitConfig(git, authConfigKey)
// Add extraheader (auth)
const base64Credentials = Buffer.from(
`x-access-token:${settings.accessToken}`,
'utf8'
).toString('base64')
core.setSecret(base64Credentials)
const authConfigValue = `AUTHORIZATION: basic ${base64Credentials}`
await git.config(authConfigKey, authConfigValue)
// LFS install
if (settings.lfs) {
await git.lfsInstall()
}
// Fetch
const refSpec = refHelper.getRefSpec(settings.ref, settings.commit)
await git.fetch(settings.fetchDepth, refSpec)
// Checkout info
const checkoutInfo = await refHelper.getCheckoutInfo(
git,
settings.ref,
settings.commit
)
// LFS fetch
// Explicit lfs-fetch to avoid slow checkout (fetches one lfs object at a time).
// Explicit lfs fetch will fetch lfs objects in parallel.
if (settings.lfs) {
await git.lfsFetch(checkoutInfo.startPoint || checkoutInfo.ref)
}
// Checkout
await git.checkout(checkoutInfo.ref, checkoutInfo.startPoint)
// Dump some info about the checked out commit
await git.log1()
// Set intra-task state for cleanup
coreCommand.issueCommand(
'save-state',
{name: 'repositoryPath'},
settings.repositoryPath
)
}
export async function cleanup(repositoryPath: string): Promise<void> {
// Repo exists?
if (!fsHelper.fileExistsSync(path.join(repositoryPath, '.git', 'config'))) {
return
}
fsHelper.directoryExistsSync(repositoryPath, true)
// Remove the config key
const git = await gitCommandManager.CreateCommandManager(
repositoryPath,
false
)
await removeGitConfig(git, authConfigKey)
}
async function tryPrepareExistingDirectory(
git: IGitCommandManager,
repositoryPath: string,
repositoryUrl: string,
clean: boolean
): Promise<boolean> {
// Fetch URL does not match
if (
!fsHelper.directoryExistsSync(path.join(repositoryPath, '.git')) ||
repositoryUrl !== (await git.tryGetFetchUrl())
) {
return false
}
// Delete any index.lock and shallow.lock left by a previously canceled run or crashed git process
const lockPaths = [
path.join(repositoryPath, '.git', 'index.lock'),
path.join(repositoryPath, '.git', 'shallow.lock')
]
for (const lockPath of lockPaths) {
try {
await io.rmRF(lockPath)
} catch (error) {
core.debug(`Unable to delete '${lockPath}'. ${error.message}`)
}
}
try {
// Checkout detached HEAD
if (!(await git.isDetached())) {
await git.checkoutDetach()
}
// Remove all refs/heads/*
let branches = await git.branchList(false)
for (const branch of branches) {
await git.branchDelete(false, branch)
}
// Remove all refs/remotes/origin/* to avoid conflicts
branches = await git.branchList(true)
for (const branch of branches) {
await git.branchDelete(true, branch)
}
} catch (error) {
core.warning(
`Unable to prepare the existing repository. The repository will be recreated instead.`
)
return false
}
// Clean
if (clean) {
let succeeded = true
if (!(await git.tryClean())) {
core.debug(
`The clean command failed. This might be caused by: 1) path too long, 2) permission issue, or 3) file in use. For futher investigation, manually run 'git clean -ffdx' on the directory '${repositoryPath}'.`
)
succeeded = false
} else if (!(await git.tryReset())) {
succeeded = false
}
if (!succeeded) {
core.warning(
`Unable to clean or reset the repository. The repository will be recreated instead.`
)
}
return succeeded
}
return true
}
async function removeGitConfig(
git: IGitCommandManager,
configKey: string
): Promise<void> {
if (
(await git.configExists(configKey)) &&
!(await git.tryConfigUnset(configKey))
) {
// Load the config contents
core.warning(
`Failed to remove '${configKey}' from the git config. Attempting to remove the config value by editing the file directly.`
)
const configPath = path.join(git.getWorkingDirectory(), '.git', 'config')
fsHelper.fileExistsSync(configPath)
let contents = fs.readFileSync(configPath).toString() || ''
// Filter - only includes lines that do not contain the config key
const upperConfigKey = configKey.toUpperCase()
const split = contents
.split('\n')
.filter(x => !x.toUpperCase().includes(upperConfigKey))
contents = split.join('\n')
// Rewrite the config file
fs.writeFileSync(configPath, contents)
}
}

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export class GitVersion {
private readonly major: number = NaN
private readonly minor: number = NaN
private readonly patch: number = NaN
/**
* Used for comparing the version of git and git-lfs against the minimum required version
* @param version the version string, e.g. 1.2 or 1.2.3
*/
constructor(version?: string) {
if (version) {
const match = version.match(/^(\d+)\.(\d+)(\.(\d+))?$/)
if (match) {
this.major = Number(match[1])
this.minor = Number(match[2])
if (match[4]) {
this.patch = Number(match[4])
}
}
}
}
/**
* Compares the instance against a minimum required version
* @param minimum Minimum version
*/
checkMinimum(minimum: GitVersion): boolean {
if (!minimum.isValid()) {
throw new Error('Arg minimum is not a valid version')
}
// Major is insufficient
if (this.major < minimum.major) {
return false
}
// Major is equal
if (this.major === minimum.major) {
// Minor is insufficient
if (this.minor < minimum.minor) {
return false
}
// Minor is equal
if (this.minor === minimum.minor) {
// Patch is insufficient
if (this.patch && this.patch < (minimum.patch || 0)) {
return false
}
}
}
return true
}
/**
* Indicates whether the instance was constructed from a valid version string
*/
isValid(): boolean {
return !isNaN(this.major)
}
/**
* Returns the version as a string, e.g. 1.2 or 1.2.3
*/
toString(): string {
let result = ''
if (this.isValid()) {
result = `${this.major}.${this.minor}`
if (!isNaN(this.patch)) {
result += `.${this.patch}`
}
}
return result
}
}

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import * as core from '@actions/core'
import * as fsHelper from './fs-helper'
import * as github from '@actions/github'
import * as path from 'path'
import {ISourceSettings} from './git-source-provider'
export function getInputs(): ISourceSettings {
const result = ({} as unknown) as ISourceSettings
// GitHub workspace
let githubWorkspacePath = process.env['GITHUB_WORKSPACE']
if (!githubWorkspacePath) {
throw new Error('GITHUB_WORKSPACE not defined')
}
githubWorkspacePath = path.resolve(githubWorkspacePath)
core.debug(`GITHUB_WORKSPACE = '${githubWorkspacePath}'`)
fsHelper.directoryExistsSync(githubWorkspacePath, true)
// Qualified repository
const qualifiedRepository =
core.getInput('repository') ||
`${github.context.repo.owner}/${github.context.repo.repo}`
core.debug(`qualified repository = '${qualifiedRepository}'`)
const splitRepository = qualifiedRepository.split('/')
if (
splitRepository.length !== 2 ||
!splitRepository[0] ||
!splitRepository[1]
) {
throw new Error(
`Invalid repository '${qualifiedRepository}'. Expected format {owner}/{repo}.`
)
}
result.repositoryOwner = splitRepository[0]
result.repositoryName = splitRepository[1]
// Repository path
result.repositoryPath = core.getInput('path') || '.'
result.repositoryPath = path.resolve(
githubWorkspacePath,
result.repositoryPath
)
if (
!(result.repositoryPath + path.sep).startsWith(
githubWorkspacePath + path.sep
)
) {
throw new Error(
`Repository path '${result.repositoryPath}' is not under '${githubWorkspacePath}'`
)
}
// Workflow repository?
const isWorkflowRepository =
qualifiedRepository.toUpperCase() ===
`${github.context.repo.owner}/${github.context.repo.repo}`.toUpperCase()
// Source branch, source version
result.ref = core.getInput('ref')
if (!result.ref) {
if (isWorkflowRepository) {
result.ref = github.context.ref
result.commit = github.context.sha
}
if (!result.ref && !result.commit) {
result.ref = 'refs/heads/master'
}
}
// SHA?
else if (result.ref.match(/^[0-9a-fA-F]{40}$/)) {
result.commit = result.ref
result.ref = ''
}
core.debug(`ref = '${result.ref}'`)
core.debug(`commit = '${result.commit}'`)
// Clean
result.clean = (core.getInput('clean') || 'true').toUpperCase() === 'TRUE'
core.debug(`clean = ${result.clean}`)
// Submodules
if (core.getInput('submodules')) {
throw new Error(
"The input 'submodules' is not supported in actions/checkout@v2"
)
}
// Fetch depth
result.fetchDepth = Math.floor(Number(core.getInput('fetch-depth') || '1'))
if (isNaN(result.fetchDepth) || result.fetchDepth < 0) {
result.fetchDepth = 0
}
core.debug(`fetch depth = ${result.fetchDepth}`)
// LFS
result.lfs = (core.getInput('lfs') || 'false').toUpperCase() === 'TRUE'
core.debug(`lfs = ${result.lfs}`)
// Access token
result.accessToken = core.getInput('token')
return result
}

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import * as core from '@actions/core'
import * as coreCommand from '@actions/core/lib/command'
import * as gitSourceProvider from './git-source-provider'
import * as inputHelper from './input-helper'
import * as path from 'path'
const cleanupRepositoryPath = process.env['STATE_repositoryPath'] as string
async function run(): Promise<void> {
try {
const sourceSettings = inputHelper.getInputs()
try {
// Register problem matcher
coreCommand.issueCommand(
'add-matcher',
{},
path.join(__dirname, 'problem-matcher.json')
)
// Get sources
await gitSourceProvider.getSource(sourceSettings)
} finally {
// Unregister problem matcher
coreCommand.issueCommand('remove-matcher', {owner: 'checkout-git'}, '')
}
} catch (error) {
core.setFailed(error.message)
}
}
async function cleanup(): Promise<void> {
try {
await gitSourceProvider.cleanup(cleanupRepositoryPath)
} catch (error) {
core.warning(error.message)
}
}
// Main
if (!cleanupRepositoryPath) {
run()
}
// Post
else {
cleanup()
}

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import * as fs from 'fs'
import * as os from 'os'
import * as path from 'path'
import * as yaml from 'js-yaml'
//
// SUMMARY
//
// This script rebuilds the usage section in the README.md to be consistent with the action.yml
function updateUsage(
actionReference: string,
actionYamlPath: string = 'action.yml',
readmePath: string = 'README.md',
startToken: string = '<!-- start usage -->',
endToken: string = '<!-- end usage -->'
): void {
if (!actionReference) {
throw new Error('Parameter actionReference must not be empty')
}
// Load the action.yml
const actionYaml = yaml.safeLoad(fs.readFileSync(actionYamlPath).toString())
// Load the README
const originalReadme = fs.readFileSync(readmePath).toString()
// Find the start token
const startTokenIndex = originalReadme.indexOf(startToken)
if (startTokenIndex < 0) {
throw new Error(`Start token '${startToken}' not found`)
}
// Find the end token
const endTokenIndex = originalReadme.indexOf(endToken)
if (endTokenIndex < 0) {
throw new Error(`End token '${endToken}' not found`)
} else if (endTokenIndex < startTokenIndex) {
throw new Error('Start token must appear before end token')
}
// Build the new README
const newReadme: string[] = []
// Append the beginning
newReadme.push(originalReadme.substr(0, startTokenIndex + startToken.length))
// Build the new usage section
newReadme.push('```yaml', `- uses: ${actionReference}`, ' with:')
const inputs = actionYaml.inputs
let firstInput = true
for (const key of Object.keys(inputs)) {
const input = inputs[key]
// Line break between inputs
if (!firstInput) {
newReadme.push('')
}
// Constrain the width of the description
const width = 80
let description = input.description as string
while (description) {
// Longer than width? Find a space to break apart
let segment: string = description
if (description.length > width) {
segment = description.substr(0, width + 1)
while (!segment.endsWith(' ')) {
segment = segment.substr(0, segment.length - 1)
}
} else {
segment = description
}
description = description.substr(segment.length) // Remaining
segment = segment.trimRight() // Trim the trailing space
newReadme.push(` # ${segment}`)
}
// Input and default
if (input.default !== undefined) {
newReadme.push(` # Default: ${input.default}`)
}
newReadme.push(` ${key}: ''`)
firstInput = false
}
newReadme.push('```')
// Append the end
newReadme.push(originalReadme.substr(endTokenIndex))
// Write the new README
fs.writeFileSync(readmePath, newReadme.join(os.EOL))
}
updateUsage(
'actions/checkout@preview',
path.join(__dirname, '..', '..', 'action.yml'),
path.join(__dirname, '..', '..', 'README.md')
)

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import {IGitCommandManager} from './git-command-manager'
export interface ICheckoutInfo {
ref: string
startPoint: string
}
export async function getCheckoutInfo(
git: IGitCommandManager,
ref: string,
commit: string
): Promise<ICheckoutInfo> {
if (!git) {
throw new Error('Arg git cannot be empty')
}
if (!ref && !commit) {
throw new Error('Args ref and commit cannot both be empty')
}
const result = ({} as unknown) as ICheckoutInfo
const upperRef = (ref || '').toUpperCase()
// SHA only
if (!ref) {
result.ref = commit
}
// refs/heads/
else if (upperRef.startsWith('REFS/HEADS/')) {
const branch = ref.substring('refs/heads/'.length)
result.ref = branch
result.startPoint = `refs/remotes/origin/${branch}`
}
// refs/pull/
else if (upperRef.startsWith('REFS/PULL/')) {
const branch = ref.substring('refs/pull/'.length)
result.ref = `refs/remotes/pull/${branch}`
}
// refs/tags/
else if (upperRef.startsWith('REFS/')) {
result.ref = ref
}
// Unqualified ref, check for a matching branch or tag
else {
if (await git.branchExists(true, `origin/${ref}`)) {
result.ref = ref
result.startPoint = `refs/remotes/origin/${ref}`
} else if (await git.tagExists(`${ref}`)) {
result.ref = `refs/tags/${ref}`
} else {
throw new Error(
`A branch or tag with the name '${ref}' could not be found`
)
}
}
return result
}
export function getRefSpec(ref: string, commit: string): string[] {
if (!ref && !commit) {
throw new Error('Args ref and commit cannot both be empty')
}
const upperRef = (ref || '').toUpperCase()
// SHA
if (commit) {
// refs/heads
if (upperRef.startsWith('REFS/HEADS/')) {
const branch = ref.substring('refs/heads/'.length)
return [`+${commit}:refs/remotes/origin/${branch}`]
}
// refs/pull/
else if (upperRef.startsWith('REFS/PULL/')) {
const branch = ref.substring('refs/pull/'.length)
return [`+${commit}:refs/remotes/pull/${branch}`]
}
// refs/tags/
else if (upperRef.startsWith('REFS/TAGS/')) {
return [`+${commit}:${ref}`]
}
// Otherwise no destination ref
else {
return [commit]
}
}
// Unqualified ref, check for a matching branch or tag
else if (!upperRef.startsWith('REFS/')) {
return [
`+refs/heads/${ref}*:refs/remotes/origin/${ref}*`,
`+refs/tags/${ref}*:refs/tags/${ref}*`
]
}
// refs/heads/
else if (upperRef.startsWith('REFS/HEADS/')) {
const branch = ref.substring('refs/heads/'.length)
return [`+${ref}:refs/remotes/origin/${branch}`]
}
// refs/pull/
else if (upperRef.startsWith('REFS/PULL/')) {
const branch = ref.substring('refs/pull/'.length)
return [`+${ref}:refs/remotes/pull/${branch}`]
}
// refs/tags/
else {
return [`+${ref}:${ref}`]
}
}

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{
"compilerOptions": {
"target": "es6",
"module": "commonjs",
"lib": [
"es6"
],
"outDir": "./lib",
"rootDir": "./src",
"declaration": true,
"strict": true,
"noImplicitAny": false,
"esModuleInterop": true
},
"exclude": ["__test__", "lib", "node_modules"]
}