.

.github/workflows/test.yml

@@ -6,31 +6,32 @@ on:
     branches:
       - master
       - releases/*
+      - users/ericsciple/*
 
 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
+      - uses: actions/checkout@v2-beta
+  #     - 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:
-    strategy:
-      matrix:
-        runs-on: [ubuntu-latest, macos-latest, windows-latest]
-    runs-on: ${{ matrix.runs-on }}
+  # test:
+  #   strategy:
+  #     matrix:
+  #       runs-on: [ubuntu-latest, macos-latest, windows-latest]
+  #   runs-on: ${{ matrix.runs-on }}
 
-    steps:
-      # Clone this repo
-      - name: Checkout
-        uses: actions/checkout@v1 # todo: switch to V2
+  #   steps:
+  #     # Clone this repo
+  #     - name: Checkout
+  #       uses: actions/checkout@v1 # todo: switch to V2
 
       # Basic checkout
       - name: Basic checkout
@@ -38,46 +39,46 @@ jobs:
         with:
           ref: test-data/v2/basic
           path: basic
-      - name: Verify basic
-        shell: bash
-        run: __test__/verify-basic.sh
+      # - 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
+      # # 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
+      # # 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
+      # # 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

package-lock.json

@@ -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==",
-          "requires": {
-            "os-name": "^3.1.0"
-          }
-        }
+      }
+    },
+    "@octokit/types": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-2.0.2.tgz",
+      "integrity": "sha512-StASIL2lgT3TRjxv17z9pAqbnI7HGu9DrJlg3sEBFfCLaMEqp+O3IQPUF6EZtQ4xkAu2ml6kMBBCtGxjvmtmuQ==",
+      "requires": {
+        "@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",
@@ -6603,6 +6604,11 @@
         "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 +6633,15 @@
         "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 +6668,11 @@
         }
       }
     },
+    "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 +6686,11 @@
       }
     },
     "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 +6773,7 @@
     "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

@@ -31,8 +31,9 @@
   "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"
   },
   "devDependencies": {
     "@types/jest": "^24.0.23",

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>
@@ -150,22 +155,10 @@ 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 {
@@ -188,22 +181,10 @@ class GitCommandManager {
   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> {
@@ -338,13 +319,9 @@ 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 +358,6 @@ 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

@@ -6,6 +6,7 @@ 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 * as githubApiHelper from './github-api-helper'
 import {IGitCommandManager} from './git-command-manager'
 
 const authConfigKey = `http.https://github.com/.extraheader`
@@ -23,6 +24,7 @@ export interface ISourceSettings {
 }
 
 export async function getSource(settings: ISourceSettings): Promise<void> {
+  // Repository URL
   core.info(
     `Syncing repository: ${settings.repositoryOwner}/${settings.repositoryName}`
   )
@@ -30,6 +32,13 @@ export async function getSource(settings: ISourceSettings): Promise<void> {
     settings.repositoryOwner
   )}/${encodeURIComponent(settings.repositoryName)}`
 
+  // Set intra-task state for cleanup
+  coreCommand.issueCommand(
+    'save-state',
+    {name: 'repositoryPath'},
+    settings.repositoryPath
+  )
+
   // Remove conflicting file path
   if (fsHelper.fileExistsSync(settings.repositoryPath)) {
     await io.rmRF(settings.repositoryPath)
@@ -44,91 +53,101 @@ 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
-  )
+  let git = (null as unknown) as IGitCommandManager
+  try {
+    git = await gitCommandManager.CreateCommandManager(
+      settings.repositoryPath,
+      settings.lfs
+    )
+  } catch (err) {
+    // Git is required for LFS
+    if (settings.lfs) {
+      throw err
+    }
 
-  // Try prepare existing directory, otherwise recreate
-  if (
-    isExisting &&
-    !(await tryPrepareExistingDirectory(
+    // Otherwise fallback to REST API
+  }
+
+  // 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))
-    }
-  }
-
-  // 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)
+  if (!git || `${1}` == '1') {
+    core.info(`Downloading the repository files using the GitHub REST API`)
+    core.info(
+      `To create a local repository instead, add Git ${gitCommandManager.MinimumGitVersion} or higher to the PATH`
+    )
+    await githubApiHelper.downloadRepository(
+      settings.accessToken,
+      settings.repositoryOwner,
+      settings.repositoryName,
+      settings.ref,
+      settings.commit,
+      settings.repositoryPath
+    )
+  } else {
+    // Initialize the repository
+    if (
+      !fsHelper.directoryExistsSync(path.join(settings.repositoryPath, '.git'))
+    ) {
+      await git.init()
+      await git.remoteAdd('origin', repositoryUrl)
+    }
 
-  // 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)
+    // 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.`
+      )
+    }
 
-  // LFS install
-  if (settings.lfs) {
-    await git.lfsInstall()
+    // 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()
   }
-
-  // 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> {
@@ -146,79 +165,89 @@ export async function cleanup(repositoryPath: string): Promise<void> {
   await removeGitConfig(git, authConfigKey)
 }
 
-async function tryPrepareExistingDirectory(
+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'),
+      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}`)
+      }
+    }
 
-  // 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)
+      // 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)
+      }
+
+      // Clean
+      if (clean) {
+        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 '${repositoryPath}'.`
+          )
+          remove = true
+        } else if (!(await git.tryReset())) {
+          remove = true
+        }
+
+        if (remove) {
+          core.warning(
+            `Unable to clean or reset the repository. The repository will be recreated instead.`
+          )
+        }
+      }
     } catch (error) {
-      core.debug(`Unable to delete '${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.`
+        `Unable to prepare the existing repository. The repository will be recreated instead.`
       )
+      remove = true
     }
-
-    return succeeded
   }
 
-  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 removeGitConfig(

src/github-api-helper.ts

@@ -0,0 +1,204 @@
+import * as assert from 'assert'
+import * as core from '@actions/core'
+import * as exec from '@actions/exec'
+import * as fs from 'fs'
+import * as github from '@actions/github'
+import * as https from 'https'
+import * as io from '@actions/io'
+import * as path from 'path'
+import * as refHelper from './ref-helper'
+import * as retryHelper from './retry-helper'
+import * as toolCache from '@actions/tool-cache'
+import {ExecOptions} from '@actions/exec/lib/interfaces'
+import {IncomingMessage} from 'http'
+import {RequestOptions, ReposGetArchiveLinkParams} from '@octokit/rest'
+import {WriteStream} from 'fs'
+
+const IS_WINDOWS = process.platform === 'win32'
+
+export async function downloadRepository(
+  accessToken: string,
+  owner: string,
+  repo: string,
+  ref: string,
+  commit: string,
+  repositoryPath: string
+): Promise<void> {
+  // Determine archive path
+  const runnerTemp = process.env['RUNNER_TEMP'] as string
+  assert.ok(runnerTemp, 'RUNNER_TEMP not defined')
+  const archivePath = path.join(runnerTemp, 'checkout.tar.gz')
+
+  // Ensure file does not exist
+  core.debug(`Ensuring archive file does not exist: ${archivePath}`)
+  await io.rmRF(archivePath)
+
+  // Download the archive
+  let archiveData = await retryHelper.execute(async () => {
+    core.info('Downloading the archive using the REST API')
+    return await downloadArchive(accessToken, owner, repo, ref, commit)
+  })
+
+  // Write archive to disk
+  core.info('Writing archive to disk')
+  await fs.promises.writeFile(archivePath, archiveData)
+  archiveData = Buffer.from('') // Free memory
+
+  // // Get the archive URL using the REST API
+  // await retryHelper.execute(async () => {
+  //   // Prepare the archive stream
+  //   core.debug(`Preparing the archive stream: ${archivePath}`)
+  //   await io.rmRF(archivePath)
+  //   const fileStream = fs.createWriteStream(archivePath)
+  //   const fileStreamClosed = getFileClosedPromise(fileStream)
+
+  //   try {
+  //     // Get the archive URL
+  //     core.info('Getting archive URL')
+  //     const archiveUrl = await getArchiveUrl(
+  //       accessToken,
+  //       owner,
+  //       repo,
+  //       ref,
+  //       commit
+  //     )
+
+  //     // Download the archive
+  //     core.info('Downloading the archive') // Do not print the archive URL because it has an embedded token
+  //     await downloadFile(archiveUrl, fileStream)
+  //   } finally {
+  //     fileStream.end()
+  //     await fileStreamClosed
+  //   }
+  // })
+
+  // Extract archive
+  const extractPath = path.join(runnerTemp, `checkout`)
+  await io.rmRF(extractPath)
+  await io.mkdirP(extractPath)
+  if (IS_WINDOWS) {
+    await toolCache.extractZip(archivePath, extractPath)
+  } else {
+    await toolCache.extractTar(archivePath, extractPath)
+  }
+
+  // Determine the real directory to copy (ignore extra dir at root of the archive)
+  const archiveFileNames = await fs.promises.readdir(extractPath)
+  assert.ok(
+    archiveFileNames.length == 1,
+    'Expected exactly one directory inside archive'
+  )
+  const extraDirectoryName = archiveFileNames[0]
+  core.info(`Resolved ${extraDirectoryName}`) // contains the short SHA
+  const tempRepositoryPath = path.join(extractPath, extraDirectoryName)
+
+  // Move the files
+  for (const fileName of await fs.promises.readdir(tempRepositoryPath)) {
+    const sourcePath = path.join(tempRepositoryPath, fileName)
+    const targetPath = path.join(repositoryPath, fileName)
+    await io.mv(sourcePath, targetPath)
+  }
+
+  await exec.exec(`find .`, [], {
+    cwd: repositoryPath
+  } as ExecOptions)
+}
+
+async function downloadArchive(
+  accessToken: string,
+  owner: string,
+  repo: string,
+  ref: string,
+  commit: string
+): Promise<Buffer> {
+  const octokit = new github.GitHub(accessToken)
+  const params: ReposGetArchiveLinkParams = {
+    owner: owner,
+    repo: repo,
+    archive_format: IS_WINDOWS ? 'zipball' : 'tarball',
+    ref: refHelper.getDownloadRef(ref, commit)
+  }
+  const response = await octokit.repos.getArchiveLink(params)
+  console.log('GOT THE RESPONSE')
+  console.log(`status=${response.status}`)
+  console.log(`headers=${JSON.stringify(response.headers)}`)
+  console.log(`data=${JSON.stringify(response.data)}`)
+  if (response.status != 200) {
+    throw new Error(
+      `Unexpected response from GitHub API. Status: '${response.status}'`
+    )
+  }
+
+  return Buffer.from(response.data) // response.data is ArrayBuffer
+}
+
+// async function getArchiveUrl(
+//   accessToken: string,
+//   owner: string,
+//   repo: string,
+//   ref: string,
+//   commit: string
+// ): Promise<string> {
+//   const octokit = new github.GitHub(accessToken)
+//   const params: RequestOptions & ReposGetArchiveLinkParams = {
+//     method: 'HEAD',
+//     owner: owner,
+//     repo: repo,
+//     archive_format: IS_WINDOWS ? 'zipball' : 'tarball',
+//     ref: refHelper.getDownloadRef(ref, commit)
+//   }
+//   const response = await octokit.repos.getArchiveLink(params)
+//   console.log('GOT THE RESPONSE')
+//   console.log(`status=${response.status}`)
+//   console.log(`headers=${JSON.stringify(response.headers)}`)
+//   console.log(`data=${JSON.stringify(response.data)}`)
+//   if (response.status != 200) {
+//     throw new Error(
+//       `Unexpected response from GitHub API. Status: '${response.status}'`
+//     )
+//   }
+//   console.log('GETTING THE LOCATION')
+//   const archiveUrl = response.headers['Location'] // Do not print the archive URL because it has an embedded token
+//   assert.ok(
+//     archiveUrl,
+//     `Expected GitHub API response to contain 'Location' header`
+//   )
+//   return archiveUrl
+// }
+
+// function downloadFile(url: string, fileStream: WriteStream): Promise<void> {
+//   return new Promise((resolve, reject) => {
+//     try {
+//       https.get(url, (response: IncomingMessage) => {
+//         if (response.statusCode != 200) {
+//           reject(`Request failed with status '${response.statusCode}'`)
+//           response.resume() // Consume response data to free up memory
+//           return
+//         }
+
+//         response.on('data', chunk => {
+//           fileStream.write(chunk)
+//         })
+//         response.on('end', () => {
+//           resolve()
+//         })
+//         response.on('error', err => {
+//           reject(err)
+//         })
+//       })
+//     } catch (err) {
+//       reject(err)
+//     }
+//   })
+// }
+
+// function getFileClosedPromise(stream: WriteStream): Promise<void> {
+//   return new Promise((resolve, reject) => {
+//     stream.on('error', err => {
+//       reject(err)
+//     })
+//     stream.on('finish', () => {
+//       resolve()
+//     })
+//   })
+// }

src/ref-helper.ts

@@ -5,6 +5,15 @@ export interface ICheckoutInfo {
   startPoint: string
 }
 
+export function getDownloadRef(ref: string, commit: string): string {
+  if (commit) {
+    return commit
+  }
+
+  // todo fix this to work with refs/pull etc
+  return ref
+}
+
 export async function getCheckoutInfo(
   git: IGitCommandManager,
   ref: string,

src/retry-helper.ts

@@ -0,0 +1,36 @@
+import * as core from '@actions/core'
+
+const maxAttempts = 3
+const minSeconds = 10
+const maxSeconds = 20
+
+export async function execute<T>(action: () => Promise<T>): Promise<T> {
+  let attempt = 1
+  while (attempt < maxAttempts) {
+    // Try
+    try {
+      return await action()
+    } catch (err) {
+      core.info(err.message)
+    }
+
+    // Sleep
+    const seconds = getRandomIntInclusive(minSeconds, maxSeconds)
+    core.info(`Waiting ${seconds} before trying again`)
+    await sleep(seconds * 1000)
+    attempt++
+  }
+
+  // Last attempt
+  return await action()
+}
+
+function getRandomIntInclusive(minimum: number, maximum: number): number {
+  minimum = Math.floor(minimum)
+  maximum = Math.floor(maximum)
+  return Math.floor(Math.random() * (maximum - minimum + 1)) + minimum
+}
+
+async function sleep(milliseconds): Promise<void> {
+  return new Promise(resolve => setTimeout(resolve, milliseconds))
+}