[bot] Update dist directory

The most common case for validation will be that the wrapper jars are unchanged
from a previous workflow run. In this case, we cache the validated wrapper
checksums to minimise the work required on a subsequent run.

Fixes #172

.github/actions/init-integ-test/action.yml

@@ -9,6 +9,11 @@ runs:
         distribution: 'temurin'
         java-version: 11
 
+    - name: Configure environment
+      shell: bash
+      run: |
+        echo "ALLOWED_GRADLE_WRAPPER_CHECKSUMS=e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" >> "$GITHUB_ENV"
+
     # Downloads a 'dist' directory artifact that was uploaded in an earlier 'build-dist' step
     - name: Download dist
       if: ${{ env.SKIP_DIST != 'true' && !env.ACT }}

.github/workflow-samples/groovy-dsl/settings.gradle

@@ -1,5 +1,5 @@
 plugins {
-    id "com.gradle.develocity" version "3.17.5"
+    id "com.gradle.develocity" version "3.17.6"
     id "com.gradle.common-custom-user-data-gradle-plugin" version "2.0.1"
 }
 

.github/workflow-samples/kotlin-dsl/settings.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("com.gradle.develocity") version "3.17.5"
+    id("com.gradle.develocity") version "3.17.6"
     id("com.gradle.common-custom-user-data-gradle-plugin") version "2.0.1"
 }
 

.github/workflow-samples/no-wrapper-gradle-5/build.gradle

@@ -1,5 +1,5 @@
 plugins {
-    id "com.gradle.develocity" version "3.17.5" 
+    id "com.gradle.develocity" version "3.17.6" 
 }
 
 develocity {

.github/workflow-samples/no-wrapper/settings.gradle

@@ -1,5 +1,5 @@
 plugins {
-    id "com.gradle.develocity" version "3.17.5"
+    id "com.gradle.develocity" version "3.17.6"
 }
 
 develocity {

.github/workflow-samples/non-executable-wrapper/settings.gradle

@@ -1,5 +1,5 @@
 plugins {
-    id "com.gradle.develocity" version "3.17.5"
+    id "com.gradle.develocity" version "3.17.6"
 }
 
 develocity {

.github/workflows/integ-test-inject-develocity.yml

@@ -32,11 +32,11 @@ jobs:
       matrix:
         gradle: [current, 7.6.2, 6.9.4, 5.6.4]
         os: ${{fromJSON(inputs.runner-os)}}
-        plugin-version: [3.16.2, 3.17.5]
+        plugin-version: [3.16.2, 3.17.6]
         include:
         - plugin-version: 3.16.2
           accessKeyEnv: GRADLE_ENTERPRISE_ACCESS_KEY
-        - plugin-version: 3.17.5
+        - plugin-version: 3.17.6
           accessKeyEnv: DEVELOCITY_ACCESS_KEY
 
     runs-on: ${{ matrix.os }}
@@ -83,7 +83,7 @@ jobs:
       matrix:
         gradle: [current, 7.6.2, 6.9.4, 5.6.4]
         os: ${{fromJSON(inputs.runner-os)}}
-        plugin-version: [3.16.2, 3.17.5]
+        plugin-version: [3.16.2, 3.17.6]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout sources
@@ -132,7 +132,7 @@ jobs:
       matrix:
         gradle: [ current, 7.6.2, 6.9.4, 5.6.4 ]
         os: ${{fromJSON(inputs.runner-os)}}
-        plugin-version: [ 3.16.2, 3.17.5 ]
+        plugin-version: [ 3.16.2, 3.17.6 ]
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
@@ -168,7 +168,7 @@ jobs:
       matrix:
         gradle: [ current, 7.6.2, 6.9.4, 5.6.4 ]
         os: ${{fromJSON(inputs.runner-os)}}
-        plugin-version: [ 3.16.2, 3.17.5 ]
+        plugin-version: [ 3.16.2, 3.17.6 ]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout sources

.github/workflows/integ-test-wrapper-validation.yml

@@ -29,8 +29,8 @@ jobs:
     - name: Run wrapper-validation-action
       id: setup-gradle
       uses: ./setup-gradle
-      with:
+      env:
-        validate-wrappers: true
+        ALLOWED_GRADLE_WRAPPER_CHECKSUMS: ''
       continue-on-error: true
 
     - name: Check failure

dependency-submission/action.yml

@@ -172,6 +172,21 @@ inputs:
     description: The Develocity short-lived access tokens expiry in hours. Default is 2 hours.
     required: false
 
+  # Wrapper validation configuration
+  validate-wrappers:
+    description: |
+      When 'true' the action will automatically validate all wrapper jars found in the repository.
+      If the wrapper checksums are not valid, the action will fail.
+    required: false
+    default: false
+
+  allow-snapshot-wrappers:
+    description: |
+      When 'true', wrapper validation will include the checksums of snapshot wrapper jars. 
+      Use this if you are running with nightly or snapshot versions of the Gradle wrapper.
+    required: false
+    default: false
+
   # DEPRECATED ACTION INPUTS
 
   # EXPERIMENTAL ACTION INPUTS

docs/setup-gradle.md

@@ -515,14 +515,30 @@ Since Gradle applies init scripts in alphabetical order, one way to ensure this
 
 ## Gradle Wrapper validation
 
-Instead of using the [wrapper-validation action](./wrapper-validation.md) separately, you can enable
+By default, this action will perform the same wrapper validation as is performed by the dedicated 
-wrapper validation directly in your Setup Gradle step.
+[wrapper-validation action](./wrapper-validation.md). 
+This means that invalid wrapper jars will be automatically detected when using `setup-gradle`. 
+
+If you do not want wrapper-validation to occur automatically, you can disable it:
+
+```yaml
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@v3
+      with:
+        validate-wrappers: false
+```
+
+If your repository uses snapshot versions of the Gradle wrapper, such as nightly builds, then you'll need to 
+explicitly allow snapshot wrappers in wrapper validation.
+These are not allowed by default.
+
 
 ```yaml
     - name: Setup Gradle
       uses: gradle/actions/setup-gradle@v3
       with:
         validate-wrappers: true
+        allow-snapshot-wrappers: true
 ```
 
 If you need more advanced configuration, then you're advised to continue using a separate workflow step
@@ -733,7 +749,7 @@ Here's a minimal example:
       run: ./gradlew build
 ```
 
-This configuration will automatically apply `v3.17.5` of the [Develocity Gradle plugin](https://docs.gradle.com/develocity/gradle-plugin/), and publish build scans to https://develocity.your-server.com.
+This configuration will automatically apply `v3.17.6` of the [Develocity Gradle plugin](https://docs.gradle.com/develocity/gradle-plugin/), and publish build scans to https://develocity.your-server.com.
 
 This example assumes that the `develocity.your-server.com` server allows anonymous publishing of build scans.
 In the likely scenario that your Develocity server requires authentication, you will also need to pass a valid [Develocity access key](https://docs.gradle.com/develocity/gradle-plugin/#via_environment_variable) taken from a secret:
@@ -805,7 +821,7 @@ Here's an example using the env vars:
       env:
         DEVELOCITY_INJECTION_ENABLED: true
         DEVELOCITY_URL: https://develocity.your-server.com
-        DEVELOCITY_PLUGIN_VERSION: 3.17.5
+        DEVELOCITY_PLUGIN_VERSION: 3.17.6
 ```
 
 ## Publishing to scans.gradle.com

docs/wrapper-validation.md

@@ -4,6 +4,9 @@ This action validates the checksums of _all_ [Gradle Wrapper](https://docs.gradl
 
 The action should be run in the root of the repository, as it will recursively search for any files named `gradle-wrapper.jar`.
 
+The `setup-gradle` action will perform wrapper validation on each execution. If you are using `setup-gradle` in your
+workflows, it is unlikely that you will need to use this action.
+
 ## The Gradle Wrapper Problem in Open Source
 
 The `gradle-wrapper.jar` is a binary blob of executable code that is checked into nearly
@@ -90,18 +93,22 @@ We recommend the message commit contents of:
 
 From there, you can easily follow the rest of the prompts to create a Pull Request against the project.
 
-## Reporting Failures
+## Validation Failures
 
-If this GitHub action fails because a `gradle-wrapper.jar` doesn't match one of our published SHA-256 checksums,
+A wrapper jar can fail validation for a few reasons:
+1. The wrapper is from a snapshot build of Gradle (nightly or release nightly) and you have not set `allow-snapshots`
+   or `allow-snapshot-wrappers` to `true`.
+2. The wrapper jar is from a version of Gradle with an unverifiable wrapper jar (see below).
+3. The wrapper jar was not published by Gradle, and could be compromised.
+
+If this GitHub action fails because a `gradle-wrapper.jar` was not published by Gradle,
 we highly recommend that you reach out to us at [security@gradle.com](mailto:security@gradle.com).
 
-**Note:** `gradle-wrapper.jar` generated by Gradle 3.3 to 4.0 are not verifiable because those files were dynamically generated by Gradle in a non-reproducible way. It's not possible to verify the `gradle-wrapper.jar` for those versions are legitimate using a hash comparison. You should try to determine if the `gradle-wrapper.jar` was generated by one of these versions before running the build.
+#### Unverifiable Wrapper Jars
+Wrapper Jars generated by Gradle versions `3.3` to `4.0` are not verifiable because those files were dynamically generated by Gradle in a non-reproducible way. It's not possible to verify the `gradle-wrapper.jar` for those versions are legitimate using a hash comparison. If you have a validation failure, you should try to determine if the `gradle-wrapper.jar` was generated by one of these versions before running the build.
 
-If the Gradle version in `gradle-wrapper.properties` is out of this range, you may need to regenerate the `gradle-wrapper.jar` by running `./gradlew wrapper`. If you need to use a version of Gradle between 3.3 and 4.0, you can use a newer version of Gradle to generate the `gradle-wrapper.jar`.
+- If the Gradle version in `gradle-wrapper.properties` is outside of this range, you can regenerate the `gradle-wrapper.jar` by running `./gradlew wrapper`. This will generate a new, verifiable wrapper jar.
-
+- If you need to run your build with a version of Gradle between 3.3 and 4.0, you can use a newer version of Gradle to generate the `gradle-wrapper.jar`.
-If you're curious and want to explore what the differences are between the `gradle-wrapper.jar` in your possession
-and one of our valid release, you can compare them using this online utility: [diffoscope](https://try.diffoscope.org/).
-Regardless of what you find, we still kindly request that you reach out to us and let us know.
 
 ## Resources
 

setup-gradle/action.yml

@@ -190,9 +190,16 @@ inputs:
   # Wrapper validation configuration
   validate-wrappers:
     description: |
-      When 'true', the action will perform the 'wrapper-validation' action automatically.
+      When 'true' (the default) the action will automatically validate all wrapper jars found in the repository.
       If the wrapper checksums are not valid, the action will fail.
     required: false
+    default: true
+
+  allow-snapshot-wrappers:
+    description: |
+      When 'true', wrapper validation will include the checksums of snapshot wrapper jars. 
+      Use this if you are running with nightly or snapshot versions of the Gradle wrapper.
+    required: false
     default: false
 
   # DEPRECATED ACTION INPUTS

sources/package-lock.json

@@ -20,6 +20,7 @@
         "@actions/tool-cache": "2.0.1",
         "@octokit/rest": "20.1.0",
         "@octokit/webhooks-types": "7.5.0",
+        "cheerio": "^1.0.0-rc.12",
         "semver": "7.6.0",
         "string-argv": "0.3.2",
         "typed-rest-client": "1.8.11",
@@ -3309,6 +3310,11 @@
         "readable-stream": "^3.4.0"
       }
     },
+    "node_modules/boolbase": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/boolbase/-/boolbase-1.0.0.tgz",
+      "integrity": "sha512-JZOSA7Mo9sNGB8+UjSgzdLtokWAky1zbztM3WRLCbZ70/3cTANmQmOdR7y2g+J0e2WXywy1yS468tY+IruqEww=="
+    },
     "node_modules/bottleneck": {
       "version": "2.19.5",
       "resolved": "https://registry.npmjs.org/bottleneck/-/bottleneck-2.19.5.tgz",
@@ -3526,6 +3532,42 @@
         "node": ">=10"
       }
     },
+    "node_modules/cheerio": {
+      "version": "1.0.0-rc.12",
+      "resolved": "https://registry.npmjs.org/cheerio/-/cheerio-1.0.0-rc.12.tgz",
+      "integrity": "sha512-VqR8m68vM46BNnuZ5NtnGBKIE/DfN0cRIzg9n40EIq9NOv90ayxLBXA8fXC5gquFRGJSTRqBq25Jt2ECLR431Q==",
+      "dependencies": {
+        "cheerio-select": "^2.1.0",
+        "dom-serializer": "^2.0.0",
+        "domhandler": "^5.0.3",
+        "domutils": "^3.0.1",
+        "htmlparser2": "^8.0.1",
+        "parse5": "^7.0.0",
+        "parse5-htmlparser2-tree-adapter": "^7.0.0"
+      },
+      "engines": {
+        "node": ">= 6"
+      },
+      "funding": {
+        "url": "https://github.com/cheeriojs/cheerio?sponsor=1"
+      }
+    },
+    "node_modules/cheerio-select": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/cheerio-select/-/cheerio-select-2.1.0.tgz",
+      "integrity": "sha512-9v9kG0LvzrlcungtnJtpGNxY+fzECQKhK4EGJX2vByejiMX84MFNQw4UxPJl3bFbTMw+Dfs37XaIkCwTZfLh4g==",
+      "dependencies": {
+        "boolbase": "^1.0.0",
+        "css-select": "^5.1.0",
+        "css-what": "^6.1.0",
+        "domelementtype": "^2.3.0",
+        "domhandler": "^5.0.3",
+        "domutils": "^3.0.1"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/fb55"
+      }
+    },
     "node_modules/ci-info": {
       "version": "3.8.0",
       "resolved": "https://registry.npmjs.org/ci-info/-/ci-info-3.8.0.tgz",
@@ -3723,6 +3765,32 @@
       "integrity": "sha512-VxBKmeNcqQdiUQUW2Tzq0t377b54N2bMtXO/qiLa+6eRRmmC4qT3D4OnTGoT/U6O9aklQ/jTwbOtRMTTY8G0Ig==",
       "deprecated": "This package is no longer supported. It's now a built-in Node module. If you've depended on crypto, you should switch to the one that's built-in."
     },
+    "node_modules/css-select": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/css-select/-/css-select-5.1.0.tgz",
+      "integrity": "sha512-nwoRF1rvRRnnCqqY7updORDsuqKzqYJ28+oSMaJMMgOauh3fvwHqMS7EZpIPqK8GL+g9mKxF1vP/ZjSeNjEVHg==",
+      "dependencies": {
+        "boolbase": "^1.0.0",
+        "css-what": "^6.1.0",
+        "domhandler": "^5.0.2",
+        "domutils": "^3.0.1",
+        "nth-check": "^2.0.1"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/fb55"
+      }
+    },
+    "node_modules/css-what": {
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/css-what/-/css-what-6.1.0.tgz",
+      "integrity": "sha512-HTUrgRJ7r4dsZKU6GjmpfRK1O76h97Z8MfS1G0FozR+oF2kG6Vfe8JE6zwrkbxigziPHinCJ+gCPjA9EaBDtRw==",
+      "engines": {
+        "node": ">= 6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/fb55"
+      }
+    },
     "node_modules/damerau-levenshtein": {
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/damerau-levenshtein/-/damerau-levenshtein-1.0.8.tgz",
@@ -3900,6 +3968,57 @@
         "node": ">=6.0.0"
       }
     },
+    "node_modules/dom-serializer": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/dom-serializer/-/dom-serializer-2.0.0.tgz",
+      "integrity": "sha512-wIkAryiqt/nV5EQKqQpo3SToSOV9J0DnbJqwK7Wv/Trc92zIAYZ4FlMu+JPFW1DfGFt81ZTCGgDEabffXeLyJg==",
+      "dependencies": {
+        "domelementtype": "^2.3.0",
+        "domhandler": "^5.0.2",
+        "entities": "^4.2.0"
+      },
+      "funding": {
+        "url": "https://github.com/cheeriojs/dom-serializer?sponsor=1"
+      }
+    },
+    "node_modules/domelementtype": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/domelementtype/-/domelementtype-2.3.0.tgz",
+      "integrity": "sha512-OLETBj6w0OsagBwdXnPdN0cnMfF9opN69co+7ZrbfPGrdpPVNBUj02spi6B1N7wChLQiPn4CSH/zJvXw56gmHw==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/fb55"
+        }
+      ]
+    },
+    "node_modules/domhandler": {
+      "version": "5.0.3",
+      "resolved": "https://registry.npmjs.org/domhandler/-/domhandler-5.0.3.tgz",
+      "integrity": "sha512-cgwlv/1iFQiFnU96XXgROh8xTeetsnJiDsTc7TYCLFd9+/WNkIqPTxiM/8pSd8VIrhXGTf1Ny1q1hquVqDJB5w==",
+      "dependencies": {
+        "domelementtype": "^2.3.0"
+      },
+      "engines": {
+        "node": ">= 4"
+      },
+      "funding": {
+        "url": "https://github.com/fb55/domhandler?sponsor=1"
+      }
+    },
+    "node_modules/domutils": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/domutils/-/domutils-3.1.0.tgz",
+      "integrity": "sha512-H78uMmQtI2AhgDJjWeQmHwJJ2bLPD3GMmO7Zja/ZZh84wkm+4ut+IUnUdRa8uCGX88DiVx1j6FRe1XfxEgjEZA==",
+      "dependencies": {
+        "dom-serializer": "^2.0.0",
+        "domelementtype": "^2.3.0",
+        "domhandler": "^5.0.3"
+      },
+      "funding": {
+        "url": "https://github.com/fb55/domutils?sponsor=1"
+      }
+    },
     "node_modules/dot-object": {
       "version": "2.1.4",
       "resolved": "https://registry.npmjs.org/dot-object/-/dot-object-2.1.4.tgz",
@@ -3944,6 +4063,17 @@
         "once": "^1.4.0"
       }
     },
+    "node_modules/entities": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/entities/-/entities-4.5.0.tgz",
+      "integrity": "sha512-V0hjH4dGPh9Ao5p0MoRY6BVqtwCjhz6vI5LT8AJ55H+4g9/4vbHx1I54fS0XuclLhDHArPQCiMjDxjaL8fPxhw==",
+      "engines": {
+        "node": ">=0.12"
+      },
+      "funding": {
+        "url": "https://github.com/fb55/entities?sponsor=1"
+      }
+    },
     "node_modules/error-ex": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/error-ex/-/error-ex-1.3.2.tgz",
@@ -5187,6 +5317,24 @@
       "integrity": "sha512-H2iMtd0I4Mt5eYiapRdIDjp+XzelXQ0tFE4JS7YFwFevXXMmOp9myNrUvCg0D6ws8iqkRPBfKHgbwig1SmlLfg==",
       "dev": true
     },
+    "node_modules/htmlparser2": {
+      "version": "8.0.2",
+      "resolved": "https://registry.npmjs.org/htmlparser2/-/htmlparser2-8.0.2.tgz",
+      "integrity": "sha512-GYdjWKDkbRLkZ5geuHs5NY1puJ+PXwP7+fHPRz06Eirsb9ugf6d8kkXav6ADhcODhFFPMIXyxkxSuMf3D6NCFA==",
+      "funding": [
+        "https://github.com/fb55/htmlparser2?sponsor=1",
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/fb55"
+        }
+      ],
+      "dependencies": {
+        "domelementtype": "^2.3.0",
+        "domhandler": "^5.0.3",
+        "domutils": "^3.0.1",
+        "entities": "^4.4.0"
+      }
+    },
     "node_modules/human-signals": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/human-signals/-/human-signals-2.1.0.tgz",
@@ -7060,6 +7208,17 @@
         "node": ">=8"
       }
     },
+    "node_modules/nth-check": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/nth-check/-/nth-check-2.1.1.tgz",
+      "integrity": "sha512-lqjrjmaOoAnWfMmBPL+XNnynZh2+swxiX3WUE0s4yEHI6m+AwrK2UZOimIRl3X/4QctVqS8AiZjFqyOGrMXb/w==",
+      "dependencies": {
+        "boolbase": "^1.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/fb55/nth-check?sponsor=1"
+      }
+    },
     "node_modules/object-inspect": {
       "version": "1.13.1",
       "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.1.tgz",
@@ -7293,6 +7452,29 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/parse5": {
+      "version": "7.1.2",
+      "resolved": "https://registry.npmjs.org/parse5/-/parse5-7.1.2.tgz",
+      "integrity": "sha512-Czj1WaSVpaoj0wbhMzLmWD69anp2WH7FXMB9n1Sy8/ZFF9jolSQVMu1Ij5WIyGmcBmhk7EOndpO4mIpihVqAXw==",
+      "dependencies": {
+        "entities": "^4.4.0"
+      },
+      "funding": {
+        "url": "https://github.com/inikulin/parse5?sponsor=1"
+      }
+    },
+    "node_modules/parse5-htmlparser2-tree-adapter": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/parse5-htmlparser2-tree-adapter/-/parse5-htmlparser2-tree-adapter-7.0.0.tgz",
+      "integrity": "sha512-B77tOZrqqfUfnVcOrUvfdLbz4pu4RopLD/4vmu3HUPswwTA8OH0EMW9BlWR2B0RCoiZRAHEUu7IxeP1Pd1UU+g==",
+      "dependencies": {
+        "domhandler": "^5.0.2",
+        "parse5": "^7.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/inikulin/parse5?sponsor=1"
+      }
+    },
     "node_modules/pascal-case": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/pascal-case/-/pascal-case-3.1.2.tgz",
@@ -11649,6 +11831,11 @@
         "readable-stream": "^3.4.0"
       }
     },
+    "boolbase": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/boolbase/-/boolbase-1.0.0.tgz",
+      "integrity": "sha512-JZOSA7Mo9sNGB8+UjSgzdLtokWAky1zbztM3WRLCbZ70/3cTANmQmOdR7y2g+J0e2WXywy1yS468tY+IruqEww=="
+    },
     "bottleneck": {
       "version": "2.19.5",
       "resolved": "https://registry.npmjs.org/bottleneck/-/bottleneck-2.19.5.tgz",
@@ -11790,6 +11977,33 @@
       "integrity": "sha512-kWWXztvZ5SBQV+eRgKFeh8q5sLuZY2+8WUIzlxWVTg+oGwY14qylx1KbKzHd8P6ZYkAg0xyIDU9JMHhyJMZ1jw==",
       "dev": true
     },
+    "cheerio": {
+      "version": "1.0.0-rc.12",
+      "resolved": "https://registry.npmjs.org/cheerio/-/cheerio-1.0.0-rc.12.tgz",
+      "integrity": "sha512-VqR8m68vM46BNnuZ5NtnGBKIE/DfN0cRIzg9n40EIq9NOv90ayxLBXA8fXC5gquFRGJSTRqBq25Jt2ECLR431Q==",
+      "requires": {
+        "cheerio-select": "^2.1.0",
+        "dom-serializer": "^2.0.0",
+        "domhandler": "^5.0.3",
+        "domutils": "^3.0.1",
+        "htmlparser2": "^8.0.1",
+        "parse5": "^7.0.0",
+        "parse5-htmlparser2-tree-adapter": "^7.0.0"
+      }
+    },
+    "cheerio-select": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/cheerio-select/-/cheerio-select-2.1.0.tgz",
+      "integrity": "sha512-9v9kG0LvzrlcungtnJtpGNxY+fzECQKhK4EGJX2vByejiMX84MFNQw4UxPJl3bFbTMw+Dfs37XaIkCwTZfLh4g==",
+      "requires": {
+        "boolbase": "^1.0.0",
+        "css-select": "^5.1.0",
+        "css-what": "^6.1.0",
+        "domelementtype": "^2.3.0",
+        "domhandler": "^5.0.3",
+        "domutils": "^3.0.1"
+      }
+    },
     "ci-info": {
       "version": "3.8.0",
       "resolved": "https://registry.npmjs.org/ci-info/-/ci-info-3.8.0.tgz",
@@ -11936,6 +12150,23 @@
       "resolved": "https://registry.npmjs.org/crypto/-/crypto-1.0.1.tgz",
       "integrity": "sha512-VxBKmeNcqQdiUQUW2Tzq0t377b54N2bMtXO/qiLa+6eRRmmC4qT3D4OnTGoT/U6O9aklQ/jTwbOtRMTTY8G0Ig=="
     },
+    "css-select": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/css-select/-/css-select-5.1.0.tgz",
+      "integrity": "sha512-nwoRF1rvRRnnCqqY7updORDsuqKzqYJ28+oSMaJMMgOauh3fvwHqMS7EZpIPqK8GL+g9mKxF1vP/ZjSeNjEVHg==",
+      "requires": {
+        "boolbase": "^1.0.0",
+        "css-what": "^6.1.0",
+        "domhandler": "^5.0.2",
+        "domutils": "^3.0.1",
+        "nth-check": "^2.0.1"
+      }
+    },
+    "css-what": {
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/css-what/-/css-what-6.1.0.tgz",
+      "integrity": "sha512-HTUrgRJ7r4dsZKU6GjmpfRK1O76h97Z8MfS1G0FozR+oF2kG6Vfe8JE6zwrkbxigziPHinCJ+gCPjA9EaBDtRw=="
+    },
     "damerau-levenshtein": {
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/damerau-levenshtein/-/damerau-levenshtein-1.0.8.tgz",
@@ -12062,6 +12293,39 @@
         "esutils": "^2.0.2"
       }
     },
+    "dom-serializer": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/dom-serializer/-/dom-serializer-2.0.0.tgz",
+      "integrity": "sha512-wIkAryiqt/nV5EQKqQpo3SToSOV9J0DnbJqwK7Wv/Trc92zIAYZ4FlMu+JPFW1DfGFt81ZTCGgDEabffXeLyJg==",
+      "requires": {
+        "domelementtype": "^2.3.0",
+        "domhandler": "^5.0.2",
+        "entities": "^4.2.0"
+      }
+    },
+    "domelementtype": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/domelementtype/-/domelementtype-2.3.0.tgz",
+      "integrity": "sha512-OLETBj6w0OsagBwdXnPdN0cnMfF9opN69co+7ZrbfPGrdpPVNBUj02spi6B1N7wChLQiPn4CSH/zJvXw56gmHw=="
+    },
+    "domhandler": {
+      "version": "5.0.3",
+      "resolved": "https://registry.npmjs.org/domhandler/-/domhandler-5.0.3.tgz",
+      "integrity": "sha512-cgwlv/1iFQiFnU96XXgROh8xTeetsnJiDsTc7TYCLFd9+/WNkIqPTxiM/8pSd8VIrhXGTf1Ny1q1hquVqDJB5w==",
+      "requires": {
+        "domelementtype": "^2.3.0"
+      }
+    },
+    "domutils": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/domutils/-/domutils-3.1.0.tgz",
+      "integrity": "sha512-H78uMmQtI2AhgDJjWeQmHwJJ2bLPD3GMmO7Zja/ZZh84wkm+4ut+IUnUdRa8uCGX88DiVx1j6FRe1XfxEgjEZA==",
+      "requires": {
+        "dom-serializer": "^2.0.0",
+        "domelementtype": "^2.3.0",
+        "domhandler": "^5.0.3"
+      }
+    },
     "dot-object": {
       "version": "2.1.4",
       "resolved": "https://registry.npmjs.org/dot-object/-/dot-object-2.1.4.tgz",
@@ -12097,6 +12361,11 @@
         "once": "^1.4.0"
       }
     },
+    "entities": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/entities/-/entities-4.5.0.tgz",
+      "integrity": "sha512-V0hjH4dGPh9Ao5p0MoRY6BVqtwCjhz6vI5LT8AJ55H+4g9/4vbHx1I54fS0XuclLhDHArPQCiMjDxjaL8fPxhw=="
+    },
     "error-ex": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/error-ex/-/error-ex-1.3.2.tgz",
@@ -13007,6 +13276,17 @@
       "integrity": "sha512-H2iMtd0I4Mt5eYiapRdIDjp+XzelXQ0tFE4JS7YFwFevXXMmOp9myNrUvCg0D6ws8iqkRPBfKHgbwig1SmlLfg==",
       "dev": true
     },
+    "htmlparser2": {
+      "version": "8.0.2",
+      "resolved": "https://registry.npmjs.org/htmlparser2/-/htmlparser2-8.0.2.tgz",
+      "integrity": "sha512-GYdjWKDkbRLkZ5geuHs5NY1puJ+PXwP7+fHPRz06Eirsb9ugf6d8kkXav6ADhcODhFFPMIXyxkxSuMf3D6NCFA==",
+      "requires": {
+        "domelementtype": "^2.3.0",
+        "domhandler": "^5.0.3",
+        "domutils": "^3.0.1",
+        "entities": "^4.4.0"
+      }
+    },
     "human-signals": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/human-signals/-/human-signals-2.1.0.tgz",
@@ -14426,6 +14706,14 @@
         "path-key": "^3.0.0"
       }
     },
+    "nth-check": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/nth-check/-/nth-check-2.1.1.tgz",
+      "integrity": "sha512-lqjrjmaOoAnWfMmBPL+XNnynZh2+swxiX3WUE0s4yEHI6m+AwrK2UZOimIRl3X/4QctVqS8AiZjFqyOGrMXb/w==",
+      "requires": {
+        "boolbase": "^1.0.0"
+      }
+    },
     "object-inspect": {
       "version": "1.13.1",
       "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.1.tgz",
@@ -14584,6 +14872,23 @@
         "lines-and-columns": "^1.1.6"
       }
     },
+    "parse5": {
+      "version": "7.1.2",
+      "resolved": "https://registry.npmjs.org/parse5/-/parse5-7.1.2.tgz",
+      "integrity": "sha512-Czj1WaSVpaoj0wbhMzLmWD69anp2WH7FXMB9n1Sy8/ZFF9jolSQVMu1Ij5WIyGmcBmhk7EOndpO4mIpihVqAXw==",
+      "requires": {
+        "entities": "^4.4.0"
+      }
+    },
+    "parse5-htmlparser2-tree-adapter": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/parse5-htmlparser2-tree-adapter/-/parse5-htmlparser2-tree-adapter-7.0.0.tgz",
+      "integrity": "sha512-B77tOZrqqfUfnVcOrUvfdLbz4pu4RopLD/4vmu3HUPswwTA8OH0EMW9BlWR2B0RCoiZRAHEUu7IxeP1Pd1UU+g==",
+      "requires": {
+        "domhandler": "^5.0.2",
+        "parse5": "^7.0.0"
+      }
+    },
     "pascal-case": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/pascal-case/-/pascal-case-3.1.2.tgz",

sources/package.json

@@ -42,6 +42,7 @@
     "@actions/tool-cache": "2.0.1",
     "@octokit/rest": "20.1.0",
     "@octokit/webhooks-types": "7.5.0",
+    "cheerio": "^1.0.0-rc.12",
     "semver": "7.6.0",
     "string-argv": "0.3.2",
     "typed-rest-client": "1.8.11",

sources/src/actions/dependency-submission/main.ts

@@ -10,7 +10,8 @@ import {
     DependencyGraphConfig,
     DependencyGraphOption,
     GradleExecutionConfig,
-    setActionId
+    setActionId,
+    WrapperValidationConfig
 } from '../../configuration'
 import {saveDeprecationState} from '../../deprecation-collector'
 import {handleMainActionError} from '../../errors'
@@ -23,7 +24,7 @@ export async function run(): Promise<void> {
         setActionId('gradle/actions/dependency-submission')
 
         // Configure Gradle environment (Gradle User Home)
-        await setupGradle.setup(new CacheConfig(), new BuildScanConfig())
+        await setupGradle.setup(new CacheConfig(), new BuildScanConfig(), new WrapperValidationConfig())
 
         // Capture the enabled state of dependency-graph
         const originallyEnabled = process.env['GITHUB_DEPENDENCY_GRAPH_ENABLED']

sources/src/actions/setup-gradle/main.ts

@@ -6,7 +6,7 @@ import {
     CacheConfig,
     DependencyGraphConfig,
     GradleExecutionConfig,
-    doValidateWrappers,
+    WrapperValidationConfig,
     getActionId,
     setActionId
 } from '../../configuration'
@@ -26,13 +26,8 @@ export async function run(): Promise<void> {
 
         setActionId('gradle/actions/setup-gradle')
 
-        // Check for invalid wrapper JARs if requested
-        if (doValidateWrappers()) {
-            await setupGradle.checkNoInvalidWrapperJars()
-        }
-
         // Configure Gradle environment (Gradle User Home)
-        await setupGradle.setup(new CacheConfig(), new BuildScanConfig())
+        await setupGradle.setup(new CacheConfig(), new BuildScanConfig(), new WrapperValidationConfig())
 
         // Configure the dependency graph submission
         await dependencyGraph.setup(new DependencyGraphConfig())

sources/src/caching/cache-cleaner.ts

@@ -1,7 +1,9 @@
 import * as core from '@actions/core'
+import * as exec from '@actions/exec'
+
 import fs from 'fs'
 import path from 'path'
-import {provisionAndMaybeExecute} from '../execution/gradle'
+import * as provisioner from '../execution/provision'
 
 export class CacheCleaner {
     private readonly gradleUserHome: string
@@ -24,9 +26,8 @@ export class CacheCleaner {
         await this.forceCleanupFilesOlderThan(cleanTimestamp)
     }
 
+    // Visible for testing
     async forceCleanupFilesOlderThan(cleanTimestamp: string): Promise<void> {
-        core.info(`Cleaning up caches before ${cleanTimestamp}`)
-
         // Run a dummy Gradle build to trigger cache cleanup
         const cleanupProjectDir = path.resolve(this.tmpDir, 'dummy-cleanup-project')
         fs.mkdirSync(cleanupProjectDir, {recursive: true})
@@ -54,7 +55,16 @@ export class CacheCleaner {
         )
         fs.writeFileSync(path.resolve(cleanupProjectDir, 'build.gradle'), 'task("noop") {}')
 
-        await provisionAndMaybeExecute('current', cleanupProjectDir, [
+        const executable = await provisioner.provisionGradle('current')
+
+        await core.group('Executing Gradle to clean up caches', async () => {
+            core.info(`Cleaning up caches last used before ${cleanTimestamp}`)
+            await this.executeCleanupBuild(executable!, cleanupProjectDir)
+        })
+    }
+
+    private async executeCleanupBuild(executable: string, cleanupProjectDir: string): Promise<void> {
+        const args = [
             '-g',
             this.gradleUserHome,
             '-I',
@@ -65,6 +75,13 @@ export class CacheCleaner {
             '--build-cache',
             '-DGITHUB_DEPENDENCY_GRAPH_ENABLED=false',
             'noop'
-        ])
+        ]
+
+        const result = await exec.getExecOutput(executable, args, {
+            cwd: cleanupProjectDir,
+            silent: true
+        })
+
+        core.info(result.stdout)
     }
 }

sources/src/caching/caches.ts

@@ -92,7 +92,9 @@ export async function save(
         return
     }
 
-    await daemonController.stopAllDaemons()
+    await core.group('Stopping Gradle daemons', async () => {
+        await daemonController.stopAllDaemons()
+    })
 
     if (cacheConfig.isCacheCleanupEnabled()) {
         if (buildResults.anyConfigCacheHit()) {
@@ -113,7 +115,6 @@ export async function save(
 }
 
 async function performCacheCleanup(gradleUserHome: string): Promise<void> {
-    core.info('Forcing cache cleanup.')
     const cacheCleaner = new CacheCleaner(gradleUserHome, process.env['RUNNER_TEMP']!)
     try {
         await cacheCleaner.forceCleanup()

sources/src/caching/gradle-home-extry-extractor.ts

@@ -4,12 +4,11 @@ import * as core from '@actions/core'
 import * as glob from '@actions/glob'
 import * as semver from 'semver'
 
-import {META_FILE_DIR} from './gradle-user-home-cache'
 import {CacheEntryListener, CacheListener} from './cache-reporting'
 import {cacheDebug, hashFileNames, isCacheDebuggingEnabled, restoreCache, saveCache, tryDelete} from './cache-utils'
 
 import {BuildResult, loadBuildResults} from '../build-results'
-import {CacheConfig} from '../configuration'
+import {CacheConfig, ACTION_METADATA_DIR} from '../configuration'
 import {getCacheKeyBase} from './cache-key'
 
 const SKIP_RESTORE_VAR = 'GRADLE_BUILD_ACTION_SKIP_RESTORE'
@@ -298,7 +297,7 @@ abstract class AbstractEntryExtractor {
     }
 
     private getCacheMetadataFile(): string {
-        const actionMetadataDirectory = path.resolve(this.gradleUserHome, META_FILE_DIR)
+        const actionMetadataDirectory = path.resolve(this.gradleUserHome, ACTION_METADATA_DIR)
         fs.mkdirSync(actionMetadataDirectory, {recursive: true})
 
         return path.resolve(actionMetadataDirectory, `${this.extractorName}-entry-metadata.json`)

sources/src/caching/gradle-user-home-cache.ts

@@ -7,14 +7,12 @@ import fs from 'fs'
 import {generateCacheKey} from './cache-key'
 import {CacheListener} from './cache-reporting'
 import {saveCache, restoreCache, cacheDebug, isCacheDebuggingEnabled, tryDelete} from './cache-utils'
-import {CacheConfig} from '../configuration'
+import {CacheConfig, ACTION_METADATA_DIR} from '../configuration'
 import {GradleHomeEntryExtractor, ConfigurationCacheEntryExtractor} from './gradle-home-extry-extractor'
 import {getPredefinedToolchains, mergeToolchainContent, readResourceFileAsString} from './gradle-user-home-utils'
 
 const RESTORED_CACHE_KEY_KEY = 'restored-cache-key'
 
-export const META_FILE_DIR = '.setup-gradle'
-
 export class GradleUserHomeCache {
     private readonly cacheName = 'home'
     private readonly cacheDescription = 'Gradle User Home'
@@ -172,7 +170,7 @@ export class GradleUserHomeCache {
      */
     protected getCachePath(): string[] {
         const rawPaths: string[] = this.cacheConfig.getCacheIncludes()
-        rawPaths.push(META_FILE_DIR)
+        rawPaths.push(ACTION_METADATA_DIR)
         const resolvedPaths = rawPaths.map(x => this.resolveCachePath(x))
         cacheDebug(`Using cache paths: ${resolvedPaths}`)
         return resolvedPaths
@@ -188,7 +186,7 @@ export class GradleUserHomeCache {
 
     private initializeGradleUserHome(): void {
         // Create a directory for storing action metadata
-        const actionCacheDir = path.resolve(this.gradleUserHome, META_FILE_DIR)
+        const actionCacheDir = path.resolve(this.gradleUserHome, ACTION_METADATA_DIR)
         fs.mkdirSync(actionCacheDir, {recursive: true})
 
         this.copyInitScripts()

sources/src/configuration.ts

@@ -8,6 +8,8 @@ import path from 'path'
 
 const ACTION_ID_VAR = 'GRADLE_ACTION_ID'
 
+export const ACTION_METADATA_DIR = '.setup-gradle'
+
 export class DependencyGraphConfig {
     getDependencyGraphOption(): DependencyGraphOption {
         const val = core.getInput('dependency-graph')
@@ -357,8 +359,14 @@ export class GradleExecutionConfig {
     }
 }
 
-export function doValidateWrappers(): boolean {
+export class WrapperValidationConfig {
-    return getBooleanInput('validate-wrappers')
+    doValidateWrappers(): boolean {
+        return getBooleanInput('validate-wrappers')
+    }
+
+    allowSnapshotWrappers(): boolean {
+        return getBooleanInput('allow-snapshot-wrappers')
+    }
 }
 
 // Internal parameters

sources/src/daemon-controller.ts

@@ -12,8 +12,6 @@ export class DaemonController {
     }
 
     async stopAllDaemons(): Promise<void> {
-        core.info('Stopping all Gradle daemons before saving Gradle User Home state')
-
         const executions: Promise<number>[] = []
         const args = ['--stop']
 

sources/src/deprecation-collector.ts

@@ -25,7 +25,7 @@ export function recordDeprecation(message: string): void {
 
 export function failOnUseOfRemovedFeature(removalMessage: string, deprecationMessage: string = removalMessage): void {
     const deprecation = new Deprecation(deprecationMessage)
-    const errorMessage = `${removalMessage}. See ${deprecation.getDocumentationLink()}`
+    const errorMessage = `${removalMessage}.\nSee ${deprecation.getDocumentationLink()}`
     recordedErrors.push(errorMessage)
     core.setFailed(errorMessage)
 }

sources/src/develocity/build-scan.ts

@@ -7,7 +7,7 @@ export async function setup(config: BuildScanConfig): Promise<void> {
     maybeExportVariable('DEVELOCITY_AUTO_INJECTION_CUSTOM_VALUE', 'gradle-actions')
     if (config.getBuildScanPublishEnabled()) {
         maybeExportVariable('DEVELOCITY_INJECTION_ENABLED', 'true')
-        maybeExportVariable('DEVELOCITY_PLUGIN_VERSION', '3.17.5')
+        maybeExportVariable('DEVELOCITY_PLUGIN_VERSION', '3.17.6')
         maybeExportVariable('DEVELOCITY_CCUD_PLUGIN_VERSION', '2.0')
         maybeExportVariable('DEVELOCITY_TERMS_OF_USE_URL', config.getBuildScanTermsOfUseUrl())
         maybeExportVariable('DEVELOCITY_TERMS_OF_USE_AGREE', config.getBuildScanTermsOfUseAgree())

sources/src/setup-gradle.ts

@@ -10,16 +10,25 @@ import * as buildScan from './develocity/build-scan'
 import {loadBuildResults, markBuildResultsProcessed} from './build-results'
 import {CacheListener, generateCachingReport} from './caching/cache-reporting'
 import {DaemonController} from './daemon-controller'
-import {BuildScanConfig, CacheConfig, SummaryConfig, getWorkspaceDirectory} from './configuration'
+import {
-import {findInvalidWrapperJars} from './wrapper-validation/validate'
+    BuildScanConfig,
-import {JobFailure} from './errors'
+    CacheConfig,
+    SummaryConfig,
+    WrapperValidationConfig,
+    getWorkspaceDirectory
+} from './configuration'
+import * as wrapperValidator from './wrapper-validation/wrapper-validator'
 
 const GRADLE_SETUP_VAR = 'GRADLE_BUILD_ACTION_SETUP_COMPLETED'
 const USER_HOME = 'USER_HOME'
 const GRADLE_USER_HOME = 'GRADLE_USER_HOME'
 const CACHE_LISTENER = 'CACHE_LISTENER'
 
-export async function setup(cacheConfig: CacheConfig, buildScanConfig: BuildScanConfig): Promise<boolean> {
+export async function setup(
+    cacheConfig: CacheConfig,
+    buildScanConfig: BuildScanConfig,
+    wrapperValidationConfig: WrapperValidationConfig
+): Promise<boolean> {
     const userHome = await determineUserHome()
     const gradleUserHome = await determineGradleUserHome()
 
@@ -42,6 +51,8 @@ export async function setup(cacheConfig: CacheConfig, buildScanConfig: BuildScan
 
     core.saveState(CACHE_LISTENER, cacheListener.stringify())
 
+    await wrapperValidator.validateWrappers(wrapperValidationConfig, getWorkspaceDirectory(), gradleUserHome)
+
     await buildScan.setup(buildScanConfig)
 
     return true
@@ -116,16 +127,3 @@ async function determineUserHome(): Promise<string> {
     core.debug(`Determined user.home from java -version output: '${userHome}'`)
     return userHome
 }
-
-export async function checkNoInvalidWrapperJars(rootDir = getWorkspaceDirectory()): Promise<void> {
-    const allowedChecksums = process.env['ALLOWED_GRADLE_WRAPPER_CHECKSUMS']?.split(',') || []
-    const result = await findInvalidWrapperJars(rootDir, 1, false, allowedChecksums)
-    if (result.isValid()) {
-        core.info(result.toDisplayString())
-    } else {
-        core.info(result.toDisplayString())
-        throw new JobFailure(
-            `Gradle Wrapper Validation Failed!\n  See https://github.com/gradle/actions/blob/main/docs/wrapper-validation.md#reporting-failures\n${result.toDisplayString()}`
-        )
-    }
-}

sources/src/wrapper-validation/cache.ts

@@ -0,0 +1,26 @@
+import fs from 'fs'
+import path from 'path'
+import {ACTION_METADATA_DIR} from '../configuration'
+
+export class ChecksumCache {
+    private readonly cacheFile: string
+
+    constructor(gradleUserHome: string) {
+        this.cacheFile = path.resolve(gradleUserHome, ACTION_METADATA_DIR, 'valid-wrappers.json')
+    }
+
+    load(): string[] {
+        // Load previously validated checksums saved in Gradle User Home
+        if (fs.existsSync(this.cacheFile)) {
+            return JSON.parse(fs.readFileSync(this.cacheFile, 'utf-8'))
+        }
+        return []
+    }
+
+    save(checksums: string[]): void {
+        const uniqueChecksums = [...new Set(checksums)]
+        // Save validated checksums to Gradle User Home
+        fs.mkdirSync(path.dirname(this.cacheFile), {recursive: true})
+        fs.writeFileSync(this.cacheFile, JSON.stringify(uniqueChecksums))
+    }
+}

sources/src/wrapper-validation/checksums.ts

@@ -1,4 +1,5 @@
 import * as httpm from 'typed-rest-client/HttpClient'
+import * as cheerio from 'cheerio'
 
 import fileWrapperChecksums from './wrapper-checksums.json'
 
@@ -54,7 +55,15 @@ export async function fetchUnknownChecksums(
         // eslint-disable-next-line @typescript-eslint/no-explicit-any
         (entry: any) => entry.wrapperChecksumUrl as string
     )
-    const checksums = await Promise.all(checksumUrls.map(async (url: string) => httpGetText(url)))
+    if (allowSnapshots) {
+        await addDistributionSnapshotChecksums(checksumUrls)
+    }
+    const checksums = await Promise.all(
+        checksumUrls.map(async (url: string) => {
+            // console.log(`Fetching checksum from ${url}`)
+            return httpGetText(url)
+        })
+    )
     return new Set(checksums)
 }
 
@@ -66,3 +75,22 @@ async function httpGetText(url: string): Promise<string> {
     const response = await httpc.get(url)
     return await response.readBody()
 }
+
+// Public for testing
+export async function addDistributionSnapshotChecksums(checksumUrls: string[]): Promise<void> {
+    // Load the index page of the distribution snapshot repository
+    const indexPage = await httpGetText('https://services.gradle.org/distributions-snapshots/')
+
+    // // Extract all wrapper checksum from the index page. These end in -wrapper.jar.sha256
+    // // Load the HTML into cheerio
+    const $ = cheerio.load(indexPage)
+
+    // // Find all links ending with '-wrapper.jar.sha256'
+    const wrapperChecksumLinks = $('a[href$="-wrapper.jar.sha256"]')
+
+    // build the absolute URL for each wrapper checksum
+    wrapperChecksumLinks.each((index, element) => {
+        const url = $(element).attr('href')
+        checksumUrls.push(`https://services.gradle.org${url}`)
+    })
+}

sources/src/wrapper-validation/validate.ts

@@ -8,6 +8,7 @@ export async function findInvalidWrapperJars(
     minWrapperCount: number,
     allowSnapshots: boolean,
     allowedChecksums: string[],
+    previouslyValidatedChecksums: string[] = [],
     knownValidChecksums: checksums.WrapperChecksums = checksums.KNOWN_CHECKSUMS
 ): Promise<ValidationResult> {
     const wrapperJars = await find.findWrapperJars(gitRepoRoot)
@@ -21,7 +22,11 @@ export async function findInvalidWrapperJars(
         const notYetValidatedWrappers = []
         for (const wrapperJar of wrapperJars) {
             const sha = await hash.sha256File(resolve(gitRepoRoot, wrapperJar))
-            if (allowedChecksums.includes(sha) || knownValidChecksums.checksums.has(sha)) {
+            if (
+                allowedChecksums.includes(sha) ||
+                previouslyValidatedChecksums.includes(sha) ||
+                knownValidChecksums.checksums.has(sha)
+            ) {
                 result.valid.push(new WrapperJar(wrapperJar, sha))
             } else {
                 notYetValidatedWrappers.push(new WrapperJar(wrapperJar, sha))

sources/src/wrapper-validation/wrapper-validator.ts

@@ -0,0 +1,41 @@
+import * as core from '@actions/core'
+
+import {WrapperValidationConfig} from '../configuration'
+import {ChecksumCache} from './cache'
+import {findInvalidWrapperJars} from './validate'
+import {JobFailure} from '../errors'
+
+export async function validateWrappers(
+    config: WrapperValidationConfig,
+    workspaceRoot: string,
+    gradleUserHome: string
+): Promise<void> {
+    if (!config.doValidateWrappers()) {
+        return // Wrapper validation is disabled
+    }
+    const checksumCache = new ChecksumCache(gradleUserHome)
+
+    const allowedChecksums = process.env['ALLOWED_GRADLE_WRAPPER_CHECKSUMS']?.split(',') || []
+    const previouslyValidatedChecksums = checksumCache.load()
+
+    const result = await findInvalidWrapperJars(
+        workspaceRoot,
+        0,
+        config.allowSnapshotWrappers(),
+        allowedChecksums,
+        previouslyValidatedChecksums
+    )
+    if (result.isValid()) {
+        await core.group('All Gradle Wrapper jars are valid', async () => {
+            core.info(`Loaded previously validated checksums from cache: ${previouslyValidatedChecksums.join(', ')}`)
+            core.info(result.toDisplayString())
+        })
+    } else {
+        core.info(result.toDisplayString())
+        throw new JobFailure(
+            `Gradle Wrapper Validation Failed!\n  See https://github.com/gradle/actions/blob/main/docs/wrapper-validation.md#validation-failures\n${result.toDisplayString()}`
+        )
+    }
+
+    checksumCache.save(result.valid.map(wrapper => wrapper.checksum))
+}

sources/test/init-scripts/settings.gradle

@@ -1,5 +1,5 @@
 plugins {
-    id "com.gradle.develocity" version "3.17.5"
+    id "com.gradle.develocity" version "3.17.6"
     id "com.gradle.common-custom-user-data-gradle-plugin" version "2.0.1"
 }
 

sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/BaseInitScriptTest.groovy

@@ -16,7 +16,7 @@ import java.nio.file.Files
 import java.util.zip.GZIPOutputStream
 
 class BaseInitScriptTest extends Specification {
-    static final String DEVELOCITY_PLUGIN_VERSION = '3.17.5'
+    static final String DEVELOCITY_PLUGIN_VERSION = '3.17.6'
     static final String CCUD_PLUGIN_VERSION = '2.0.1'
 
     static final TestGradleVersion GRADLE_3_X = new TestGradleVersion(GradleVersion.version('3.5.1'), 7, 9)

sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/TestBuildResultRecorder.groovy

@@ -196,7 +196,7 @@ class TestBuildResultRecorder extends BaseInitScriptTest {
         when:
         settingsFile.text = """
             plugins {
-                id 'com.gradle.develocity' version '3.17.5' apply(false)
+                id 'com.gradle.develocity' version '3.17.6' apply(false)
             }
             gradle.settingsEvaluated {
                 apply plugin: 'com.gradle.develocity'

sources/test/jest/wrapper-validation/checksums.test.ts

@@ -32,6 +32,22 @@ test('fetches wrapper jars checksums', async () => {
   ).toBe(true)
 })
 
+test('fetches wrapper jar checksums for snapshots', async () => {
+  const nonSnapshotChecksums = await checksums.fetchUnknownChecksums(false, new checksums.WrapperChecksums)
+  const validChecksums = await checksums.fetchUnknownChecksums(true, new checksums.WrapperChecksums)
+
+  // Expect that at least one snapshot checksum is different from the non-snapshot checksums
+  expect(validChecksums.size).toBeGreaterThan(nonSnapshotChecksums.size)
+})
+
+test('fetches all wrapper checksum URLS for snapshots', async () => {
+  const checksumUrls: string[] = []
+  await checksums.addDistributionSnapshotChecksums(checksumUrls)
+
+  expect(checksumUrls.length).toBeGreaterThan(100) // May only be a few unique checksums
+  console.log(checksumUrls)
+})
+
 describe('retry', () => {
   afterEach(() => {
     nock.cleanAll()

sources/test/jest/wrapper-validation/validate.test.ts

@@ -1,11 +1,15 @@
 import * as path from 'path'
+import * as fs from 'fs'
 import * as validate from '../../../src/wrapper-validation/validate'
 import {expect, test, jest} from '@jest/globals'
 import { WrapperChecksums } from '../../../src/wrapper-validation/checksums'
+import { ChecksumCache } from '../../../src/wrapper-validation/cache'
+import exp from 'constants'
 
 jest.setTimeout(30000)
 
 const baseDir = path.resolve('./test/jest/wrapper-validation')
+const tmpDir = path.resolve('./test/jest/tmp')
 
 test('succeeds if all found wrapper jars are valid', async () => {
   const result = await validate.findInvalidWrapperJars(baseDir, 3, false, [
@@ -24,6 +28,24 @@ test('succeeds if all found wrapper jars are valid', async () => {
   )
 })
 
+test('succeeds if all found wrapper jars are previously valid', async () => {
+  const result = await validate.findInvalidWrapperJars(baseDir, 3, false, [], [
+    'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855',
+    '3888c76faa032ea8394b8a54e04ce2227ab1f4be64f65d450f8509fe112d38ce'
+  ])
+
+  expect(result.isValid()).toBe(true)
+  // Only hardcoded and explicitly allowed checksums should have been used
+  expect(result.fetchedChecksums).toBe(false)
+
+  expect(result.toDisplayString()).toBe(
+    '✓ Found known Gradle Wrapper JAR files:\n' +
+      '  e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 data/invalid/gradle-wrapper.jar\n' +
+      '  e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 data/invalid/gradlе-wrapper.jar\n' + // homoglyph
+      '  3888c76faa032ea8394b8a54e04ce2227ab1f4be64f65d450f8509fe112d38ce data/valid/gradle-wrapper.jar'
+  )
+})
+
 test('succeeds if all found wrapper jars are valid (and checksums are fetched from Gradle API)', async () => {
   const knownValidChecksums = new WrapperChecksums()
   const result = await validate.findInvalidWrapperJars(
@@ -31,6 +53,7 @@ test('succeeds if all found wrapper jars are valid (and checksums are fetched fr
     1,
     false,
     ['e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855'],
+    [],
     knownValidChecksums
   )
   console.log(`fetchedChecksums = ${result.fetchedChecksums}`)
@@ -98,3 +121,17 @@ test('fails if not enough wrapper jars are found', async () => {
       '  3888c76faa032ea8394b8a54e04ce2227ab1f4be64f65d450f8509fe112d38ce data/valid/gradle-wrapper.jar'
   )
 })
+
+test('can save and load checksums', async () => {
+  const cacheDir = path.join(tmpDir, 'wrapper-validation-cache')
+  fs.rmSync(cacheDir, {recursive: true, force: true})
+
+  const checksumCache = new ChecksumCache(cacheDir)
+
+  expect(checksumCache.load()).toEqual([])
+
+  checksumCache.save(['123', '456'])
+
+  expect(checksumCache.load()).toEqual(['123', '456'])
+  expect(fs.existsSync(cacheDir)).toBe(true)
+})