make octokit follow proxy setting.

.github/workflows/test.yml

@@ -11,13 +11,14 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1 # todo: switch to v2
+      - uses: actions/checkout@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
+      - run: npm test
       - name: Verify no unstaged changes
         run: __test__/verify-no-unstaged-changes.sh
 
@@ -30,7 +31,7 @@ jobs:
     steps:
       # Clone this repo
       - name: Checkout
-        uses: actions/checkout@v1 # todo: switch to V2
+        uses: actions/checkout@v2
 
       # Basic checkout
       - name: Basic checkout
@@ -81,3 +82,20 @@ jobs:
       - name: Verify LFS
         shell: bash
         run: __test__/verify-lfs.sh
+
+  test-job-container:
+    runs-on: ubuntu-latest
+    container: alpine:latest
+    steps:
+      # Clone this repo
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      # Basic checkout
+      - name: Basic checkout
+        uses: ./
+        with:
+          ref: test-data/v2/basic
+          path: basic
+      - name: Verify basic
+        run: __test__/verify-basic.sh --archive

README.md

@@ -2,28 +2,30 @@
   <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>
 
-# Checkout V2 beta
+# Checkout V2
 
 This action checks-out your repository under `$GITHUB_WORKSPACE`, so your workflow can access it.
 
-By default, the repository that triggered the workflow is checked-out, for the ref/SHA that triggered the event.
+Only a single commit is fetched by default, for the ref/SHA that triggered the workflow. Set `fetch-depth` to fetch more history. 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://help.github.com/en/articles/events-that-trigger-workflows) to learn which commit `$GITHUB_SHA` points to for different events.
+The auth token is persisted in the local git config. This enables your scripts to run authenticated git commands. The token is removed during post-job cleanup. Set `persist-credentials: false` to opt-out.
 
-Changes in V2:
-- Improved fetch performance
-  - The default behavior now fetches only the SHA being checked-out
+When Git 2.18 or higher is not in your PATH, falls back to the REST API to download the files.
+
+# What's new
+
+- Improved performance
+  - Fetches only a single commit by default
 - 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`
+  - Auth token persisted in the local git config
 - 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
+  - The input `path` is always relative to $GITHUB_WORKSPACE
+  - Aligns better with container actions, where $GITHUB_WORKSPACE gets mapped in
+- Fallback to REST API download
+  - When Git 2.18 or higher is not in the PATH, the REST API will be used to download the files
+  - When using a job container, the container's PATH is used
 - Removed input `submodules`
 
 Refer [here](https://github.com/actions/checkout/blob/v1/README.md) for previous versions.
@@ -32,20 +34,28 @@ Refer [here](https://github.com/actions/checkout/blob/v1/README.md) for previous
 
 <!-- start usage -->
 ```yaml
-- uses: actions/checkout@v2-beta
+- uses: actions/checkout@v2
   with:
     # Repository name with owner. For example, actions/checkout
     # Default: ${{ github.repository }}
     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.
+    # The branch, tag or SHA to checkout. When checking out the repository that
+    # triggered a workflow, this defaults to the reference or SHA for that event.
+    # Otherwise, defaults to `master`.
     ref: ''
 
-    # Access token for clone repository
+    # Auth token used to fetch the repository. The token is stored in the local git
+    # config, which enables your scripts to run authenticated git commands. The
+    # post-job step removes the token from the git config. [Learn more about creating
+    # and using encrypted secrets](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/creating-and-using-encrypted-secrets)
     # Default: ${{ github.token }}
     token: ''
 
+    # Whether to persist the token in the git config
+    # Default: true
+    persist-credentials: ''
+
     # Relative path under $GITHUB_WORKSPACE to place the repository
     path: ''
 
@@ -63,31 +73,139 @@ Refer [here](https://github.com/actions/checkout/blob/v1/README.md) for previous
 ```
 <!-- end usage -->
 
+# Scenarios
+
+- [Checkout a different branch](#Checkout-a-different-branch)
+- [Checkout HEAD^](#Checkout-HEAD)
+- [Checkout multiple repos (side by side)](#Checkout-multiple-repos-side-by-side)
+- [Checkout multiple repos (nested)](#Checkout-multiple-repos-nested)
+- [Checkout multiple repos (private)](#Checkout-multiple-repos-private)
+- [Checkout pull request HEAD commit instead of merge commit](#Checkout-pull-request-HEAD-commit-instead-of-merge-commit)
+- [Checkout pull request on closed event](#Checkout-pull-request-on-closed-event)
+- [Checkout submodules](#Checkout-submodules)
+- [Fetch all tags](#Fetch-all-tags)
+- [Fetch all branches](#Fetch-all-branches)
+- [Fetch all history for all tags and branches](#Fetch-all-history-for-all-tags-and-branches)
+
 ## Checkout a different branch
 
 ```yaml
-- uses: actions/checkout@v2-beta
+- uses: actions/checkout@v2
   with:
-    ref: some-branch
+    ref: my-branch
 ```
 
-## Checkout a different, private repository
+## Checkout HEAD^
 
 ```yaml
-- uses: actions/checkout@v2-beta
+- uses: actions/checkout@v2
   with:
-    repository: myAccount/myRepository
-    ref: refs/heads/master
+    fetch-depth: 2
+- run: git checkout HEAD^
+```
+
+## Checkout multiple repos (side by side)
+
+```yaml
+- name: Checkout
+  uses: actions/checkout@v2
+  with:
+    path: main
+
+- name: Checkout tools repo
+  uses: actions/checkout@v2
+  with:
+    repository: my-org/my-tools
+    path: my-tools
+```
+
+## Checkout multiple repos (nested)
+
+```yaml
+- name: Checkout
+  uses: actions/checkout@v2
+
+- name: Checkout tools repo
+  uses: actions/checkout@v2
+  with:
+    repository: my-org/my-tools
+    path: my-tools
+```
+
+## Checkout multiple repos (private)
+
+```yaml
+- name: Checkout
+  uses: actions/checkout@v2
+  with:
+    path: main
+
+- name: Checkout private tools
+  uses: actions/checkout@v2
+  with:
+    repository: my-org/my-private-tools
     token: ${{ secrets.GitHub_PAT }} # `GitHub_PAT` is a secret that contains your PAT
+    path: my-tools
 ```
-> - `${{ 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 the HEAD commit of a PR, rather than the merge commit
+> - `${{ github.token }}` is scoped to the current repository, so if you want to checkout a different 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 pull request HEAD commit instead of merge commit
 
 ```yaml
-- uses: actions/checkout@v2-beta
+- uses: actions/checkout@v2
   with:
-    ref: refs/pull/${{ github.event.number }}/head
+    ref: ${{ github.event.pull_request.head.sha }}
+```
+
+## Checkout pull request on closed event
+
+```yaml
+on:
+  pull_request:
+    branches: [master]
+    types: [opened, synchronize, closed]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+```
+
+## Checkout submodules
+
+```yaml
+- uses: actions/checkout@v2
+- name: Checkout submodules
+  shell: bash
+  run: |
+    auth_header="$(git config --local --get http.https://github.com/.extraheader)"
+    git submodule sync --recursive
+    git -c "http.extraheader=$auth_header" -c protocol.version=2 submodule update --init --force --recursive --depth=1
+```
+
+## Fetch all tags
+
+```yaml
+- uses: actions/checkout@v2
+- run: git fetch --depth=1 origin +refs/tags/*:refs/tags/*
+```
+
+## Fetch all branches
+
+```yaml
+- uses: actions/checkout@v2
+- run: |
+    git fetch --no-tags --prune --depth=1 origin +refs/heads/*:refs/remotes/origin/*
+```
+
+## Fetch all history for all tags and branches
+
+```yaml
+- uses: actions/checkout@v2
+- run: |
+    git fetch --prune --unshallow
 ```
 
 # License

__test__/input-helper.test.ts

@@ -63,7 +63,7 @@ describe('input-helper tests', () => {
   it('sets defaults', () => {
     const settings: ISourceSettings = inputHelper.getInputs()
     expect(settings).toBeTruthy()
-    expect(settings.accessToken).toBeFalsy()
+    expect(settings.authToken).toBeFalsy()
     expect(settings.clean).toBe(true)
     expect(settings.commit).toBeTruthy()
     expect(settings.commit).toBe('1234567890123456789012345678901234567890')

__test__/retry-helper.test.ts

@@ -0,0 +1,88 @@
+const mockCore = jest.genMockFromModule('@actions/core') as any
+mockCore.info = (message: string) => {
+  info.push(message)
+}
+let info: string[]
+let retryHelper: any
+
+describe('retry-helper tests', () => {
+  beforeAll(() => {
+    // Mocks
+    jest.setMock('@actions/core', mockCore)
+
+    // Now import
+    const retryHelperModule = require('../lib/retry-helper')
+    retryHelper = new retryHelperModule.RetryHelper(3, 0, 0)
+  })
+
+  beforeEach(() => {
+    // Reset info
+    info = []
+  })
+
+  afterAll(() => {
+    // Reset modules
+    jest.resetModules()
+  })
+
+  it('first attempt succeeds', async () => {
+    const actual = await retryHelper.execute(async () => {
+      return 'some result'
+    })
+    expect(actual).toBe('some result')
+    expect(info).toHaveLength(0)
+  })
+
+  it('second attempt succeeds', async () => {
+    let attempts = 0
+    const actual = await retryHelper.execute(() => {
+      if (++attempts == 1) {
+        throw new Error('some error')
+      }
+
+      return Promise.resolve('some result')
+    })
+    expect(attempts).toBe(2)
+    expect(actual).toBe('some result')
+    expect(info).toHaveLength(2)
+    expect(info[0]).toBe('some error')
+    expect(info[1]).toMatch(/Waiting .+ seconds before trying again/)
+  })
+
+  it('third attempt succeeds', async () => {
+    let attempts = 0
+    const actual = await retryHelper.execute(() => {
+      if (++attempts < 3) {
+        throw new Error(`some error ${attempts}`)
+      }
+
+      return Promise.resolve('some result')
+    })
+    expect(attempts).toBe(3)
+    expect(actual).toBe('some result')
+    expect(info).toHaveLength(4)
+    expect(info[0]).toBe('some error 1')
+    expect(info[1]).toMatch(/Waiting .+ seconds before trying again/)
+    expect(info[2]).toBe('some error 2')
+    expect(info[3]).toMatch(/Waiting .+ seconds before trying again/)
+  })
+
+  it('all attempts fail succeeds', async () => {
+    let attempts = 0
+    let error: Error = (null as unknown) as Error
+    try {
+      await retryHelper.execute(() => {
+        throw new Error(`some error ${++attempts}`)
+      })
+    } catch (err) {
+      error = err
+    }
+    expect(error.message).toBe('some error 3')
+    expect(attempts).toBe(3)
+    expect(info).toHaveLength(4)
+    expect(info[0]).toBe('some error 1')
+    expect(info[1]).toMatch(/Waiting .+ seconds before trying again/)
+    expect(info[2]).toBe('some error 2')
+    expect(info[3]).toMatch(/Waiting .+ seconds before trying again/)
+  })
+})

__test__/verify-basic.sh

@@ -1,10 +1,24 @@
-#!/bin/bash
+#!/bin/sh
 
 if [ ! -f "./basic/basic-file.txt" ]; then
     echo "Expected basic file does not exist"
     exit 1
 fi
 
-# Verify auth token
-cd basic
-git fetch
+if [ "$1" = "--archive" ]; then
+  # Verify no .git folder
+  if [ -d "./basic/.git" ]; then
+    echo "Did not expect ./basic/.git folder to exist"
+    exit 1
+  fi
+else
+  # Verify .git folder
+  if [ ! -d "./basic/.git" ]; then
+    echo "Expected ./basic/.git folder to exist"
+    exit 1
+  fi
+
+  # Verify auth token
+  cd basic
+  git fetch --no-tags --depth=1 origin +refs/heads/master:refs/remotes/origin/master
+fi

action.yml

@@ -1,16 +1,24 @@
 name: 'Checkout'
-description: 'Checkout a Git repository'
+description: 'Checkout a Git repository at a particular version'
 inputs: 
   repository:
     description: 'Repository name with owner. For example, actions/checkout'
     default: ${{ github.repository }}
   ref:
     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.
+      The branch, tag or SHA to checkout. When checking out the repository that
+      triggered a workflow, this defaults to the reference or SHA for that
+      event.  Otherwise, defaults to `master`.
   token:
-    description: 'Access token for clone repository'
+    description: >
+      Auth token used to fetch the repository. The token is stored in the local
+      git config, which enables your scripts to run authenticated git commands.
+      The post-job step removes the token from the git config. [Learn more about
+      creating and using encrypted secrets](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/creating-and-using-encrypted-secrets)
     default: ${{ github.token }}
+  persist-credentials:
+    description: 'Whether to persist the token in the git config'
+    default: true
   path:
     description: 'Relative path under $GITHUB_WORKSPACE to place the repository'
   clean:

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "checkout",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -15,11 +15,11 @@
       "integrity": "sha512-nvFkxwiicvpzNiCBF4wFBDfnBvi7xp/as7LE1hBxBxKG2L29+gkIPBiLKMVORL+Hg3JNf07AKRfl0V5djoypjQ=="
     },
     "@actions/github": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@actions/github/-/github-1.1.0.tgz",
-      "integrity": "sha512-cHf6PyoNMdei13jEdGPhKprIMFmjVVW/dnM5/9QmQDJ1ZTaGVyezUSCUIC/ySNLRvDUpeFwPYMdThSEJldSbUw==",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/@actions/github/-/github-2.0.0.tgz",
+      "integrity": "sha512-sNpZ5dJyJyfJIO5lNYx8r/Gha4Tlm8R0MLO2cBkGdOnAAEn3t1M/MHVcoBhY/VPfjGVe5RNAUPz+6INrViiUPA==",
       "requires": {
-        "@octokit/graphql": "^2.0.1",
+        "@octokit/graphql": "^4.3.1",
         "@octokit/rest": "^16.15.0"
       }
     },
@@ -28,6 +28,26 @@
       "resolved": "https://registry.npmjs.org/@actions/io/-/io-1.0.1.tgz",
       "integrity": "sha512-rhq+tfZukbtaus7xyUtwKfuiCRXd1hWSfmJNEpFgBQJ4woqPEpsBw04awicjwz9tyG2/MVhAEMfVn664Cri5zA=="
     },
+    "@actions/tool-cache": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@actions/tool-cache/-/tool-cache-1.1.2.tgz",
+      "integrity": "sha512-IJczPaZr02ECa3Lgws/TJEVco9tjOujiQSZbO3dHuXXjhd5vrUtfOgGwhmz3/f97L910OraPZ8SknofUk6RvOQ==",
+      "requires": {
+        "@actions/core": "^1.1.0",
+        "@actions/exec": "^1.0.1",
+        "@actions/io": "^1.0.1",
+        "semver": "^6.1.0",
+        "typed-rest-client": "^1.4.0",
+        "uuid": "^3.3.2"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "6.3.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw=="
+        }
+      }
+    },
     "@babel/code-frame": {
       "version": "7.5.5",
       "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.5.5.tgz",
@@ -578,72 +598,56 @@
       }
     },
     "@octokit/endpoint": {
-      "version": "5.4.0",
-      "resolved": "https://registry.npmjs.org/@octokit/endpoint/-/endpoint-5.4.0.tgz",
-      "integrity": "sha512-DWTNgEKg5KXzvNjKTzcFTnkZiL7te6pQxxumvxPjyjDpcY5V3xzywnNu1WVqySY3Ct1flF/kAoyDdZos6acq3Q==",
+      "version": "5.5.1",
+      "resolved": "https://registry.npmjs.org/@octokit/endpoint/-/endpoint-5.5.1.tgz",
+      "integrity": "sha512-nBFhRUb5YzVTCX/iAK1MgQ4uWo89Gu0TH00qQHoYRCsE12dWcG1OiLd7v2EIo2+tpUKPMOQ62QFy9hy9Vg2ULg==",
       "requires": {
+        "@octokit/types": "^2.0.0",
         "is-plain-object": "^3.0.0",
         "universal-user-agent": "^4.0.0"
-      },
-      "dependencies": {
-        "universal-user-agent": {
-          "version": "4.0.0",
-          "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-4.0.0.tgz",
-          "integrity": "sha512-eM8knLpev67iBDizr/YtqkJsF3GK8gzDc6st/WKzrTuPtcsOKW/0IdL4cnMBsU69pOx0otavLWBDGTwg+dB0aA==",
-          "requires": {
-            "os-name": "^3.1.0"
-          }
-        }
       }
     },
     "@octokit/graphql": {
-      "version": "2.1.3",
-      "resolved": "https://registry.npmjs.org/@octokit/graphql/-/graphql-2.1.3.tgz",
-      "integrity": "sha512-XoXJqL2ondwdnMIW3wtqJWEwcBfKk37jO/rYkoxNPEVeLBDGsGO1TCWggrAlq3keGt/O+C/7VepXnukUxwt5vA==",
+      "version": "4.3.1",
+      "resolved": "https://registry.npmjs.org/@octokit/graphql/-/graphql-4.3.1.tgz",
+      "integrity": "sha512-hCdTjfvrK+ilU2keAdqNBWOk+gm1kai1ZcdjRfB30oA3/T6n53UVJb7w0L5cR3/rhU91xT3HSqCd+qbvH06yxA==",
       "requires": {
-        "@octokit/request": "^5.0.0",
-        "universal-user-agent": "^2.0.3"
+        "@octokit/request": "^5.3.0",
+        "@octokit/types": "^2.0.0",
+        "universal-user-agent": "^4.0.0"
       }
     },
     "@octokit/request": {
-      "version": "5.1.0",
-      "resolved": "https://registry.npmjs.org/@octokit/request/-/request-5.1.0.tgz",
-      "integrity": "sha512-I15T9PwjFs4tbWyhtFU2Kq7WDPidYMvRB7spmxoQRZfxSmiqullG+Nz+KbSmpkfnlvHwTr1e31R5WReFRKMXjg==",
+      "version": "5.3.1",
+      "resolved": "https://registry.npmjs.org/@octokit/request/-/request-5.3.1.tgz",
+      "integrity": "sha512-5/X0AL1ZgoU32fAepTfEoggFinO3rxsMLtzhlUX+RctLrusn/CApJuGFCd0v7GMFhF+8UiCsTTfsu7Fh1HnEJg==",
       "requires": {
-        "@octokit/endpoint": "^5.1.0",
+        "@octokit/endpoint": "^5.5.0",
         "@octokit/request-error": "^1.0.1",
+        "@octokit/types": "^2.0.0",
         "deprecation": "^2.0.0",
         "is-plain-object": "^3.0.0",
         "node-fetch": "^2.3.0",
         "once": "^1.4.0",
         "universal-user-agent": "^4.0.0"
-      },
-      "dependencies": {
-        "universal-user-agent": {
-          "version": "4.0.0",
-          "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-4.0.0.tgz",
-          "integrity": "sha512-eM8knLpev67iBDizr/YtqkJsF3GK8gzDc6st/WKzrTuPtcsOKW/0IdL4cnMBsU69pOx0otavLWBDGTwg+dB0aA==",
-          "requires": {
-            "os-name": "^3.1.0"
-          }
-        }
       }
     },
     "@octokit/request-error": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmjs.org/@octokit/request-error/-/request-error-1.0.4.tgz",
-      "integrity": "sha512-L4JaJDXn8SGT+5G0uX79rZLv0MNJmfGa4vb4vy1NnpjSnWDLJRy6m90udGwvMmavwsStgbv2QNkPzzTCMmL+ig==",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/@octokit/request-error/-/request-error-1.2.0.tgz",
+      "integrity": "sha512-DNBhROBYjjV/I9n7A8kVkmQNkqFAMem90dSxqvPq57e2hBr7mNTX98y3R2zDpqMQHVRpBDjsvsfIGgBzy+4PAg==",
       "requires": {
+        "@octokit/types": "^2.0.0",
         "deprecation": "^2.0.0",
         "once": "^1.4.0"
       }
     },
     "@octokit/rest": {
-      "version": "16.33.0",
-      "resolved": "https://registry.npmjs.org/@octokit/rest/-/rest-16.33.0.tgz",
-      "integrity": "sha512-t4jMR+odsfooQwmHiREoTQixVTX2DfdbSaO+lKrW9R5XBuk0DW+5T/JdfwtxAGUAHgvDDpWY/NVVDfEPTzxD6g==",
+      "version": "16.35.0",
+      "resolved": "https://registry.npmjs.org/@octokit/rest/-/rest-16.35.0.tgz",
+      "integrity": "sha512-9ShFqYWo0CLoGYhA1FdtdykJuMzS/9H6vSbbQWDX4pWr4p9v+15MsH/wpd/3fIU+tSxylaNO48+PIHqOkBRx3w==",
       "requires": {
-        "@octokit/request": "^5.0.0",
+        "@octokit/request": "^5.2.0",
         "@octokit/request-error": "^1.0.2",
         "atob-lite": "^2.0.0",
         "before-after-hook": "^2.0.0",
@@ -655,16 +659,14 @@
         "octokit-pagination-methods": "^1.1.0",
         "once": "^1.4.0",
         "universal-user-agent": "^4.0.0"
+      }
     },
-      "dependencies": {
-        "universal-user-agent": {
-          "version": "4.0.0",
-          "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-4.0.0.tgz",
-          "integrity": "sha512-eM8knLpev67iBDizr/YtqkJsF3GK8gzDc6st/WKzrTuPtcsOKW/0IdL4cnMBsU69pOx0otavLWBDGTwg+dB0aA==",
+    "@octokit/types": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-2.0.2.tgz",
+      "integrity": "sha512-StASIL2lgT3TRjxv17z9pAqbnI7HGu9DrJlg3sEBFfCLaMEqp+O3IQPUF6EZtQ4xkAu2ml6kMBBCtGxjvmtmuQ==",
       "requires": {
-            "os-name": "^3.1.0"
-          }
-        }
+        "@types/node": ">= 8"
       }
     },
     "@types/babel__core": {
@@ -757,8 +759,7 @@
     "@types/node": {
       "version": "12.7.12",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-12.7.12.tgz",
-      "integrity": "sha512-KPYGmfD0/b1eXurQ59fXD1GBzhSQfz6/lKBxkaHX9dKTzjXbK68Zt7yGUxUsCS1jeTy/8aL+d9JEr+S54mpkWQ==",
-      "dev": true
+      "integrity": "sha512-KPYGmfD0/b1eXurQ59fXD1GBzhSQfz6/lKBxkaHX9dKTzjXbK68Zt7yGUxUsCS1jeTy/8aL+d9JEr+S54mpkWQ=="
     },
     "@types/stack-utils": {
       "version": "1.0.1",
@@ -766,6 +767,15 @@
       "integrity": "sha512-l42BggppR6zLmpfU6fq9HEa2oGPEI8yrSPL3GITjfRInppYFahObbIQOQK3UGxEnyQpltZLaPe75046NOZQikw==",
       "dev": true
     },
+    "@types/uuid": {
+      "version": "3.4.6",
+      "resolved": "https://registry.npmjs.org/@types/uuid/-/uuid-3.4.6.tgz",
+      "integrity": "sha512-cCdlC/1kGEZdEglzOieLDYBxHsvEOIg7kp/2FYyVR9Pxakq+Qf/inL3RKQ+PA8gOlI/NnL+fXmQH12nwcGzsHw==",
+      "dev": true,
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "@types/yargs": {
       "version": "13.0.3",
       "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-13.0.3.tgz",
@@ -919,6 +929,11 @@
       "integrity": "sha512-7evsyfH1cLOCdAzZAd43Cic04yKydNx0cF+7tiA19p1XnLLPU4dpCQOqpjqwokFe//vS0QqfqqjCS2JkiIs0cA==",
       "dev": true
     },
+    "agent-base": {
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-5.1.1.tgz",
+      "integrity": "sha512-TMeqbNl2fMW0nMjTEPOwe3J/PRFP4vqeoNuQMG0HlMrtm5QxKqdvAkZ1pRBQ/ulIyDD5Yq0nJ7YbdD8ey0TO3g=="
+    },
     "ajv": {
       "version": "6.10.2",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.2.tgz",
@@ -1697,7 +1712,6 @@
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
       "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
-      "dev": true,
       "requires": {
         "ms": "^2.1.1"
       }
@@ -3660,6 +3674,15 @@
         "sshpk": "^1.7.0"
       }
     },
+    "https-proxy-agent": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-4.0.0.tgz",
+      "integrity": "sha512-zoDhWrkR3of1l9QAL8/scJZyLu8j/gBkcwcaQOZh7Gyh/+uJQzGVETdgT30akuwkpL8HTRfssqI3BZuV18teDg==",
+      "requires": {
+        "agent-base": "5",
+        "debug": "4"
+      }
+    },
     "iconv-lite": {
       "version": "0.4.24",
       "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
@@ -4975,8 +4998,7 @@
     "ms": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
-      "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
-      "dev": true
+      "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
     },
     "mute-stream": {
       "version": "0.0.7",
@@ -6603,6 +6625,11 @@
         "tslib": "^1.8.1"
       }
     },
+    "tunnel": {
+      "version": "0.0.4",
+      "resolved": "https://registry.npmjs.org/tunnel/-/tunnel-0.0.4.tgz",
+      "integrity": "sha1-LTeFoVjBdMmhbcLARuxfxfF0IhM="
+    },
     "tunnel-agent": {
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
@@ -6627,6 +6654,15 @@
         "prelude-ls": "~1.1.2"
       }
     },
+    "typed-rest-client": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/typed-rest-client/-/typed-rest-client-1.5.0.tgz",
+      "integrity": "sha512-DVZRlmsfnTjp6ZJaatcdyvvwYwbWvR4YDNFDqb+qdTxpvaVP99YCpBkA8rxsLtAPjBVoDe4fNsnMIdZTiPuKWg==",
+      "requires": {
+        "tunnel": "0.0.4",
+        "underscore": "1.8.3"
+      }
+    },
     "typescript": {
       "version": "3.6.4",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.6.4.tgz",
@@ -6653,6 +6689,11 @@
         }
       }
     },
+    "underscore": {
+      "version": "1.8.3",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.8.3.tgz",
+      "integrity": "sha1-Tz+1OxBuYJf8+ctBCfKl6b36UCI="
+    },
     "union-value": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.1.tgz",
@@ -6666,11 +6707,11 @@
       }
     },
     "universal-user-agent": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-2.1.0.tgz",
-      "integrity": "sha512-8itiX7G05Tu3mGDTdNY2fB4KJ8MgZLS54RdG6PkkfwMAavrXu1mV/lls/GABx9O3Rw4PnTtasxrvbMQoBYY92Q==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-4.0.0.tgz",
+      "integrity": "sha512-eM8knLpev67iBDizr/YtqkJsF3GK8gzDc6st/WKzrTuPtcsOKW/0IdL4cnMBsU69pOx0otavLWBDGTwg+dB0aA==",
       "requires": {
-        "os-name": "^3.0.0"
+        "os-name": "^3.1.0"
       }
     },
     "unset-value": {
@@ -6753,8 +6794,7 @@
     "uuid": {
       "version": "3.3.3",
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.3.tgz",
-      "integrity": "sha512-pW0No1RGHgzlpHJO1nsVrHKpOEIxkGg1xB+v0ZmdNH5OAeAwzAVrCnI2/6Mtx+Uys6iaylxa+D3g4j63IKKjSQ==",
-      "dev": true
+      "integrity": "sha512-pW0No1RGHgzlpHJO1nsVrHKpOEIxkGg1xB+v0ZmdNH5OAeAwzAVrCnI2/6Mtx+Uys6iaylxa+D3g4j63IKKjSQ=="
     },
     "validate-npm-package-license": {
       "version": "3.0.4",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "checkout",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "description": "checkout action",
   "main": "lib/main.js",
   "scripts": {
@@ -31,12 +31,16 @@
   "dependencies": {
     "@actions/core": "^1.1.3",
     "@actions/exec": "^1.0.1",
-    "@actions/github": "^1.1.0",
-    "@actions/io": "^1.0.1"
+    "@actions/github": "^2.0.0",
+    "@actions/io": "^1.0.1",
+    "@actions/tool-cache": "^1.1.2",
+    "https-proxy-agent": "^4.0.0",
+    "uuid": "^3.3.3"
   },
   "devDependencies": {
     "@types/jest": "^24.0.23",
     "@types/node": "^12.7.12",
+    "@types/uuid": "^3.4.6",
     "@typescript-eslint/parser": "^2.8.0",
     "@zeit/ncc": "^0.20.5",
     "eslint": "^5.16.0",

src/git-command-manager.ts

@@ -3,8 +3,13 @@ import * as exec from '@actions/exec'
 import * as fshelper from './fs-helper'
 import * as io from '@actions/io'
 import * as path from 'path'
+import * as retryHelper from './retry-helper'
 import {GitVersion} from './git-version'
 
+// Auth header not supported before 2.9
+// Wire protocol v2 not supported before 2.18
+export const MinimumGitVersion = new GitVersion('2.18')
+
 export interface IGitCommandManager {
   branchDelete(remote: boolean, branch: string): Promise<void>
   branchExists(remote: boolean, pattern: string): Promise<boolean>
@@ -72,10 +77,12 @@ class GitCommandManager {
   async branchList(remote: boolean): Promise<string[]> {
     const result: string[] = []
 
-    // Note, this implementation uses "rev-parse --symbolic" because the output from
+    // Note, this implementation uses "rev-parse --symbolic-full-name" because the output from
     // "branch --list" is more difficult when in a detached HEAD state.
+    // Note, this implementation uses "rev-parse --symbolic-full-name" because there is a bug
+    // in Git 2.18 that causes "rev-parse --symbolic" to output symbolic full names.
 
-    const args = ['rev-parse', '--symbolic']
+    const args = ['rev-parse', '--symbolic-full-name']
     if (remote) {
       args.push('--remotes=origin')
     } else {
@@ -87,6 +94,12 @@ class GitCommandManager {
     for (let branch of output.stdout.trim().split('\n')) {
       branch = branch.trim()
       if (branch) {
+        if (branch.startsWith('refs/heads/')) {
+          branch = branch.substr('refs/heads/'.length)
+        } else if (branch.startsWith('refs/remotes/')) {
+          branch = branch.substr('refs/remotes/'.length)
+        }
+
         result.push(branch)
       }
     }
@@ -111,7 +124,7 @@ class GitCommandManager {
   }
 
   async config(configKey: string, configValue: string): Promise<void> {
-    await this.execGit(['config', configKey, configValue])
+    await this.execGit(['config', '--local', configKey, configValue])
   }
 
   async configExists(configKey: string): Promise<boolean> {
@@ -119,7 +132,7 @@ class GitCommandManager {
       return `\\${x}`
     })
     const output = await this.execGit(
-      ['config', '--name-only', '--get-regexp', pattern],
+      ['config', '--local', '--name-only', '--get-regexp', pattern],
       true
     )
     return output.exitCode === 0
@@ -150,22 +163,10 @@ class GitCommandManager {
       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++
-    }
+    const that = this
+    await retryHelper.execute(async () => {
+      await that.execGit(args)
+    })
   }
 
   getWorkingDirectory(): string {
@@ -177,33 +178,21 @@ class GitCommandManager {
   }
 
   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() === ''
+    // Note, "branch --show-current" would be simpler but isn't available until Git 2.22
+    const output = await this.execGit(
+      ['rev-parse', '--symbolic-full-name', '--verify', '--quiet', 'HEAD'],
+      true
+    )
+    return !output.stdout.trim().startsWith('refs/heads/')
   }
 
   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++
-    }
+    const that = this
+    await retryHelper.execute(async () => {
+      await that.execGit(args)
+    })
   }
 
   async lfsInstall(): Promise<void> {
@@ -230,20 +219,23 @@ class GitCommandManager {
 
   async tryConfigUnset(configKey: string): Promise<boolean> {
     const output = await this.execGit(
-      ['config', '--unset-all', configKey],
+      ['config', '--local', '--unset-all', configKey],
       true
     )
     return output.exitCode === 0
   }
 
   async tryDisableAutomaticGarbageCollection(): Promise<boolean> {
-    const output = await this.execGit(['config', 'gc.auto', '0'], true)
+    const output = await this.execGit(
+      ['config', '--local', 'gc.auto', '0'],
+      true
+    )
     return output.exitCode === 0
   }
 
   async tryGetFetchUrl(): Promise<string> {
     const output = await this.execGit(
-      ['config', '--get', 'remote.origin.url'],
+      ['config', '--local', '--get', 'remote.origin.url'],
       true
     )
 
@@ -338,13 +330,9 @@ class GitCommandManager {
     }
 
     // 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)) {
+    if (!gitVersion.checkMinimum(MinimumGitVersion)) {
       throw new Error(
-        `Minimum required git version is ${minimumGitVersion}. Your git ('${this.gitPath}') is ${gitVersion}`
+        `Minimum required git version is ${MinimumGitVersion}. Your git ('${this.gitPath}') is ${gitVersion}`
       )
     }
 
@@ -381,16 +369,6 @@ class GitCommandManager {
     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 {

src/git-source-provider.ts

@@ -1,11 +1,12 @@
 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 githubApiHelper from './github-api-helper'
 import * as io from '@actions/io'
 import * as path from 'path'
 import * as refHelper from './ref-helper'
+import * as stateHelper from './state-helper'
 import {IGitCommandManager} from './git-command-manager'
 
 const authConfigKey = `http.https://github.com/.extraheader`
@@ -19,10 +20,12 @@ export interface ISourceSettings {
   clean: boolean
   fetchDepth: number
   lfs: boolean
-  accessToken: string
+  authToken: string
+  persistCredentials: boolean
 }
 
 export async function getSource(settings: ISourceSettings): Promise<void> {
+  // Repository URL
   core.info(
     `Syncing repository: ${settings.repositoryOwner}/${settings.repositoryName}`
   )
@@ -43,30 +46,36 @@ export async function getSource(settings: ISourceSettings): Promise<void> {
   }
 
   // Git command manager
-  core.info(`Working directory is '${settings.repositoryPath}'`)
-  const git = await gitCommandManager.CreateCommandManager(
-    settings.repositoryPath,
-    settings.lfs
-  )
+  const git = await getGitCommandManager(settings)
 
-  // Try prepare existing directory, otherwise recreate
-  if (
-    isExisting &&
-    !(await tryPrepareExistingDirectory(
+  // Prepare existing directory, otherwise recreate
+  if (isExisting) {
+    await prepareExistingDirectory(
       git,
       settings.repositoryPath,
       repositoryUrl,
       settings.clean
-    ))
-  ) {
-    // Delete the contents of the directory. Don't delete the directory itself
-    // since it may be the current working directory.
-    core.info(`Deleting the contents of '${settings.repositoryPath}'`)
-    for (const file of await fs.promises.readdir(settings.repositoryPath)) {
-      await io.rmRF(path.join(settings.repositoryPath, file))
-    }
+    )
   }
 
+  if (!git) {
+    // Downloading using REST API
+    core.info(`The repository will be downloaded using the GitHub REST API`)
+    core.info(
+      `To create a local Git repository instead, add Git ${gitCommandManager.MinimumGitVersion} or higher to the PATH`
+    )
+    await githubApiHelper.downloadRepository(
+      settings.authToken,
+      settings.repositoryOwner,
+      settings.repositoryName,
+      settings.ref,
+      settings.commit,
+      settings.repositoryPath
+    )
+  } else {
+    // Save state for POST action
+    stateHelper.setRepositoryPath(settings.repositoryPath)
+
     // Initialize the repository
     if (
       !fsHelper.directoryExistsSync(path.join(settings.repositoryPath, '.git'))
@@ -85,14 +94,9 @@ export async function getSource(settings: ISourceSettings): Promise<void> {
     // 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)
+    try {
+      // Config auth token
+      await configureAuthToken(git, settings.authToken)
 
       // LFS install
       if (settings.lfs) {
@@ -122,13 +126,12 @@ export async function getSource(settings: ISourceSettings): Promise<void> {
 
       // 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
-  )
+    } finally {
+      if (!settings.persistCredentials) {
+        await removeGitConfig(git, authConfigKey)
+      }
+    }
+  }
 }
 
 export async function cleanup(repositoryPath: string): Promise<void> {
@@ -146,20 +149,46 @@ export async function cleanup(repositoryPath: string): Promise<void> {
   await removeGitConfig(git, authConfigKey)
 }
 
-async function tryPrepareExistingDirectory(
+async function getGitCommandManager(
+  settings: ISourceSettings
+): Promise<IGitCommandManager> {
+  core.info(`Working directory is '${settings.repositoryPath}'`)
+  let git = (null as unknown) as IGitCommandManager
+  try {
+    return await gitCommandManager.CreateCommandManager(
+      settings.repositoryPath,
+      settings.lfs
+    )
+  } catch (err) {
+    // Git is required for LFS
+    if (settings.lfs) {
+      throw err
+    }
+
+    // Otherwise fallback to REST API
+    return (null as unknown) as IGitCommandManager
+  }
+}
+
+async function prepareExistingDirectory(
   git: IGitCommandManager,
   repositoryPath: string,
   repositoryUrl: string,
   clean: boolean
-): Promise<boolean> {
+): Promise<void> {
+  let remove = false
+
+  // Check whether using git or REST API
+  if (!git) {
+    remove = true
+  }
   // Fetch URL does not match
-  if (
+  else if (
     !fsHelper.directoryExistsSync(path.join(repositoryPath, '.git')) ||
     repositoryUrl !== (await git.tryGetFetchUrl())
   ) {
-    return false
-  }
-
+    remove = true
+  } else {
     // 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'),
@@ -190,35 +219,74 @@ async function tryPrepareExistingDirectory(
       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
+          remove = true
         } else if (!(await git.tryReset())) {
-      succeeded = false
+          remove = true
         }
 
-    if (!succeeded) {
+        if (remove) {
           core.warning(
             `Unable to clean or reset the repository. The repository will be recreated instead.`
           )
         }
-
-    return succeeded
+      }
+    } catch (error) {
+      core.warning(
+        `Unable to prepare the existing repository. The repository will be recreated instead.`
+      )
+      remove = true
+    }
   }
 
-  return true
+  if (remove) {
+    // Delete the contents of the directory. Don't delete the directory itself
+    // since it might be the current working directory.
+    core.info(`Deleting the contents of '${repositoryPath}'`)
+    for (const file of await fs.promises.readdir(repositoryPath)) {
+      await io.rmRF(path.join(repositoryPath, file))
+    }
+  }
+}
+
+async function configureAuthToken(
+  git: IGitCommandManager,
+  authToken: string
+): Promise<void> {
+  // Configure a placeholder value. This approach avoids the credential being captured
+  // by process creation audit events, which are commonly logged. For more information,
+  // refer to https://docs.microsoft.com/en-us/windows-server/identity/ad-ds/manage/component-updates/command-line-process-auditing
+  const placeholder = `AUTHORIZATION: basic ***`
+  await git.config(authConfigKey, placeholder)
+
+  // Determine the basic credential value
+  const basicCredential = Buffer.from(
+    `x-access-token:${authToken}`,
+    'utf8'
+  ).toString('base64')
+  core.setSecret(basicCredential)
+
+  // Replace the value in the config file
+  const configPath = path.join(git.getWorkingDirectory(), '.git', 'config')
+  let content = (await fs.promises.readFile(configPath)).toString()
+  const placeholderIndex = content.indexOf(placeholder)
+  if (
+    placeholderIndex < 0 ||
+    placeholderIndex != content.lastIndexOf(placeholder)
+  ) {
+    throw new Error('Unable to replace auth placeholder in .git/config')
+  }
+  content = content.replace(
+    placeholder,
+    `AUTHORIZATION: basic ${basicCredential}`
+  )
+  await fs.promises.writeFile(configPath, content)
 }
 
 async function removeGitConfig(
@@ -230,21 +298,6 @@ async function removeGitConfig(
     !(await git.tryConfigUnset(configKey))
   ) {
     // Load the config contents
-    core.warning(
-      `Failed to remove '${configKey}' from the git config. Attempting to remove the config value by editing the file directly.`
-    )
-    const configPath = path.join(git.getWorkingDirectory(), '.git', 'config')
-    fsHelper.fileExistsSync(configPath)
-    let contents = fs.readFileSync(configPath).toString() || ''
-
-    // Filter - only includes lines that do not contain the config key
-    const upperConfigKey = configKey.toUpperCase()
-    const split = contents
-      .split('\n')
-      .filter(x => !x.toUpperCase().includes(upperConfigKey))
-    contents = split.join('\n')
-
-    // Rewrite the config file
-    fs.writeFileSync(configPath, contents)
+    core.warning(`Failed to remove '${configKey}' from the git config`)
   }
 }

src/github-api-helper.ts

@@ -0,0 +1,128 @@
+import * as assert from 'assert'
+import * as core from '@actions/core'
+import * as fs from 'fs'
+import * as github from '@actions/github'
+import * as io from '@actions/io'
+import * as path from 'path'
+import * as retryHelper from './retry-helper'
+import * as toolCache from '@actions/tool-cache'
+import {default as uuid} from 'uuid/v4'
+import {ReposGetArchiveLinkParams} from '@octokit/rest'
+import HttpsProxyAgent from 'https-proxy-agent'
+
+const IS_WINDOWS = process.platform === 'win32'
+
+export async function downloadRepository(
+  authToken: string,
+  owner: string,
+  repo: string,
+  ref: string,
+  commit: string,
+  repositoryPath: string
+): Promise<void> {
+  // Download the archive
+  let archiveData = await retryHelper.execute(async () => {
+    core.info('Downloading the archive')
+    return await downloadArchive(authToken, owner, repo, ref, commit)
+  })
+
+  // Write archive to disk
+  core.info('Writing archive to disk')
+  const uniqueId = uuid()
+  const archivePath = path.join(repositoryPath, `${uniqueId}.tar.gz`)
+  await fs.promises.writeFile(archivePath, archiveData)
+  archiveData = Buffer.from('') // Free memory
+
+  // Extract archive
+  core.info('Extracting the archive')
+  const extractPath = path.join(repositoryPath, uniqueId)
+  await io.mkdirP(extractPath)
+  if (IS_WINDOWS) {
+    await toolCache.extractZip(archivePath, extractPath)
+  } else {
+    await toolCache.extractTar(archivePath, extractPath)
+  }
+  io.rmRF(archivePath)
+
+  // Determine the path of the repository content. The archive contains
+  // a top-level folder and the repository content is inside.
+  const archiveFileNames = await fs.promises.readdir(extractPath)
+  assert.ok(
+    archiveFileNames.length == 1,
+    'Expected exactly one directory inside archive'
+  )
+  const archiveVersion = archiveFileNames[0] // The top-level folder name includes the short SHA
+  core.info(`Resolved version ${archiveVersion}`)
+  const tempRepositoryPath = path.join(extractPath, archiveVersion)
+
+  // Move the files
+  for (const fileName of await fs.promises.readdir(tempRepositoryPath)) {
+    const sourcePath = path.join(tempRepositoryPath, fileName)
+    const targetPath = path.join(repositoryPath, fileName)
+    if (IS_WINDOWS) {
+      await io.cp(sourcePath, targetPath, {recursive: true}) // Copy on Windows (Windows Defender may have a lock)
+    } else {
+      await io.mv(sourcePath, targetPath)
+    }
+  }
+  io.rmRF(extractPath)
+}
+
+async function downloadArchive(
+  authToken: string,
+  owner: string,
+  repo: string,
+  ref: string,
+  commit: string
+): Promise<Buffer> {
+  const octokit = createOctokit(authToken)
+  const params: ReposGetArchiveLinkParams = {
+    owner: owner,
+    repo: repo,
+    archive_format: IS_WINDOWS ? 'zipball' : 'tarball',
+    ref: commit || ref
+  }
+  const response = await octokit.repos.getArchiveLink(params)
+  if (response.status != 200) {
+    throw new Error(
+      `Unexpected response from GitHub API. Status: ${response.status}, Data: ${response.data}`
+    )
+  }
+
+  return Buffer.from(response.data) // response.data is ArrayBuffer
+}
+
+function createOctokit(authToken: string): github.GitHub {
+  let proxyVar: string =
+    process.env['https_proxy'] || process.env['HTTPS_PROXY'] || ''
+
+  if (!proxyVar) {
+    return new github.GitHub(authToken)
+  }
+
+  let noProxy: string = process.env['no_proxy'] || process.env['NO_PROXY'] || ''
+
+  let bypass: boolean = false
+  if (noProxy) {
+    let bypassList = noProxy.split(',')
+    for (let i = 0; i < bypassList.length; i++) {
+      let item = bypassList[i]
+      if (
+        item &&
+        typeof item === 'string' &&
+        item.trim().toLocaleLowerCase() === 'github.com'
+      ) {
+        bypass = true
+        break
+      }
+    }
+  }
+
+  if (bypass) {
+    return new github.GitHub(authToken)
+  } else {
+    return new github.GitHub(authToken, {
+      request: {agent: new HttpsProxyAgent(proxyVar)}
+    })
+  }
+}

src/input-helper.ts

@@ -97,8 +97,12 @@ export function getInputs(): ISourceSettings {
   result.lfs = (core.getInput('lfs') || 'false').toUpperCase() === 'TRUE'
   core.debug(`lfs = ${result.lfs}`)
 
-  // Access token
-  result.accessToken = core.getInput('token')
+  // Auth token
+  result.authToken = core.getInput('token')
+
+  // Persist credentials
+  result.persistCredentials =
+    (core.getInput('persist-credentials') || 'false').toUpperCase() === 'TRUE'
 
   return result
 }

src/main.ts

@@ -3,8 +3,7 @@ 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
+import * as stateHelper from './state-helper'
 
 async function run(): Promise<void> {
   try {
@@ -31,14 +30,14 @@ async function run(): Promise<void> {
 
 async function cleanup(): Promise<void> {
   try {
-    await gitSourceProvider.cleanup(cleanupRepositoryPath)
+    await gitSourceProvider.cleanup(stateHelper.RepositoryPath)
   } catch (error) {
     core.warning(error.message)
   }
 }
 
 // Main
-if (!cleanupRepositoryPath) {
+if (!stateHelper.IsPost) {
   run()
 }
 // Post

src/misc/generate-docs.ts

@@ -65,9 +65,14 @@ function updateUsage(
       let segment: string = description
       if (description.length > width) {
         segment = description.substr(0, width + 1)
-        while (!segment.endsWith(' ')) {
+        while (!segment.endsWith(' ') && segment) {
           segment = segment.substr(0, segment.length - 1)
         }
+
+        // Trimmed too much?
+        if (segment.length < width * 0.67) {
+          segment = description
+        }
       } else {
         segment = description
       }
@@ -96,7 +101,7 @@ function updateUsage(
 }
 
 updateUsage(
-  'actions/checkout@v2-beta',
+  'actions/checkout@v2',
   path.join(__dirname, '..', '..', 'action.yml'),
   path.join(__dirname, '..', '..', 'README.md')
 )

src/retry-helper.ts

@@ -0,0 +1,61 @@
+import * as core from '@actions/core'
+
+const defaultMaxAttempts = 3
+const defaultMinSeconds = 10
+const defaultMaxSeconds = 20
+
+export class RetryHelper {
+  private maxAttempts: number
+  private minSeconds: number
+  private maxSeconds: number
+
+  constructor(
+    maxAttempts: number = defaultMaxAttempts,
+    minSeconds: number = defaultMinSeconds,
+    maxSeconds: number = defaultMaxSeconds
+  ) {
+    this.maxAttempts = maxAttempts
+    this.minSeconds = Math.floor(minSeconds)
+    this.maxSeconds = Math.floor(maxSeconds)
+    if (this.minSeconds > this.maxSeconds) {
+      throw new Error('min seconds should be less than or equal to max seconds')
+    }
+  }
+
+  async execute<T>(action: () => Promise<T>): Promise<T> {
+    let attempt = 1
+    while (attempt < this.maxAttempts) {
+      // Try
+      try {
+        return await action()
+      } catch (err) {
+        core.info(err.message)
+      }
+
+      // Sleep
+      const seconds = this.getSleepAmount()
+      core.info(`Waiting ${seconds} seconds before trying again`)
+      await this.sleep(seconds)
+      attempt++
+    }
+
+    // Last attempt
+    return await action()
+  }
+
+  private getSleepAmount(): number {
+    return (
+      Math.floor(Math.random() * (this.maxSeconds - this.minSeconds + 1)) +
+      this.minSeconds
+    )
+  }
+
+  private async sleep(seconds: number): Promise<void> {
+    return new Promise(resolve => setTimeout(resolve, seconds * 1000))
+  }
+}
+
+export async function execute<T>(action: () => Promise<T>): Promise<T> {
+  const retryHelper = new RetryHelper()
+  return await retryHelper.execute(action)
+}

src/state-helper.ts

@@ -0,0 +1,30 @@
+import * as core from '@actions/core'
+import * as coreCommand from '@actions/core/lib/command'
+
+/**
+ * Indicates whether the POST action is running
+ */
+export const IsPost = !!process.env['STATE_isPost']
+
+/**
+ * The repository path for the POST action. The value is empty during the MAIN action.
+ */
+export const RepositoryPath =
+  (process.env['STATE_repositoryPath'] as string) || ''
+
+/**
+ * Save the repository path so the POST action can retrieve the value.
+ */
+export function setRepositoryPath(repositoryPath: string) {
+  coreCommand.issueCommand(
+    'save-state',
+    {name: 'repositoryPath'},
+    repositoryPath
+  )
+}
+
+// Publish a variable so that when the POST action runs, it can determine it should run the cleanup logic.
+// This is necessary since we don't have a separate entry point.
+if (!IsPost) {
+  coreCommand.issueCommand('save-state', {name: 'isPost'}, 'true')
+}