Merge pull request #304 from gradle/dd/test-init-scripts

Improve init scripts and add test coverage

The build-scan-capture init script will now capture results from builds that do not publish a build-scan, with and without the configuration-cache.

Fixes #292

.github/workflows/ci-init-script-check.yml

@@ -0,0 +1,23 @@
+name: CI-init-script-check
+
+on:
+  push:
+
+jobs:
+  test-init-scripts:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v3
+    - name: Setup Java
+      uses: actions/setup-java@v3
+      with:
+        distribution: temurin
+        java-version: 8
+    - name: Setup Gradle
+      uses: ./
+      with:
+        cache-read-only: false # For testing, allow writing cache entries on non-default branches
+    - name: Run integration tests
+      working-directory: test/test-init-scripts
+      run: ./gradlew check

.github/workflows/demo-job-summary.yml

@@ -23,10 +23,13 @@ jobs:
     - name: Build kotlin-dsl project
       working-directory: .github/workflow-samples/kotlin-dsl
       run: ./gradlew assemble
+    - name: Build kotlin-dsl project without build scan
+      working-directory: .github/workflow-samples/kotlin-dsl
+      run: ./gradlew check --no-scan
     - name: Build groovy-dsl project
       working-directory: .github/workflow-samples/groovy-dsl
       run: ./gradlew assemble
-    - name: Build kotlin-dsl project again
+    - name: Build kotlin-dsl project with multiple gradle invocations
       working-directory: .github/workflow-samples/kotlin-dsl
       run: | 
          ./gradlew tasks --no-daemon

.github/workflows/integ-test-execution.yml

@@ -56,19 +56,26 @@ jobs:
   gradle-versions:
     strategy:
       matrix:
-        gradle: [7.3, 6.9, 5.6.4, 4.10.3]
+        gradle: [7.3, 6.9, 5.6.4, 4.10.3, 3.5.1]
         os: ${{fromJSON(inputs.runner-os)}}
         include:
           - gradle: 5.6.4
             build-root-suffix: -gradle-5
           - gradle: 4.10.3
             build-root-suffix: -gradle-4
+          - gradle: 3.5.1
+            build-root-suffix: -gradle-4
     runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout sources
       uses: actions/checkout@v3
     - name: Download distribution if required
       uses: ./.github/actions/download-dist
+    - name: Setup Java
+      uses: actions/setup-java@v3
+      with:
+        distribution: temurin
+        java-version: 8
     - name: Run Gradle build
       uses: ./
       id: gradle

.github/workflows/integ-test-provision-gradle-versions.yml

@@ -59,19 +59,26 @@ jobs:
   gradle-versions:
     strategy:
       matrix:
-        gradle: [7.3, 6.9, 5.6.4, 4.10.3]
+        gradle: [7.3, 6.9, 5.6.4, 4.10.3, 3.5.1]
         os: ${{fromJSON(inputs.runner-os)}}
         include:
           - gradle: 5.6.4
             build-root-suffix: -gradle-5
           - gradle: 4.10.3
             build-root-suffix: -gradle-4
+          - gradle: 3.5.1
+            build-root-suffix: -gradle-4
     runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout sources
       uses: actions/checkout@v3
     - name: Download distribution if required
       uses: ./.github/actions/download-dist
+    - name: Setup Java
+      uses: actions/setup-java@v3
+      with:
+        distribution: temurin
+        java-version: 8
     - name: Setup Gradle
       uses: ./
       with:

dist/main/index.js

@@ -64967,6 +64967,7 @@ class GradleStateCache {
         fs_1.default.appendFileSync(propertiesFile, 'org.gradle.daemon=false');
         const initScriptFilenames = [
             'build-result-capture.init.gradle',
+            'build-result-capture-service.plugin.groovy',
             'project-root-capture.init.gradle',
             'project-root-capture.plugin.groovy'
         ];
@@ -65291,7 +65292,7 @@ class ConfigurationCacheEntryExtractor extends AbstractEntryExtractor {
         });
     }
     getProjectRoots() {
-        const projectList = path_1.default.resolve(this.gradleUserHome, cache_base_1.PROJECT_ROOTS_FILE);
+        const projectList = path_1.default.resolve(process.env['RUNNER_TEMP'], cache_base_1.PROJECT_ROOTS_FILE);
         if (!fs_1.default.existsSync(projectList)) {
             core.info(`Missing project list file ${projectList}`);
             return [];
@@ -65559,7 +65560,7 @@ function isCacheDisabled() {
 }
 exports.isCacheDisabled = isCacheDisabled;
 function isCacheReadOnly() {
-    return core.getBooleanInput(CACHE_READONLY_PARAMETER);
+    return !isCacheWriteOnly() && core.getBooleanInput(CACHE_READONLY_PARAMETER);
 }
 exports.isCacheReadOnly = isCacheReadOnly;
 function isCacheWriteOnly() {
@@ -66031,14 +66032,12 @@ function writeSummaryTable(results) {
     core.summary.addRaw('\n');
 }
 function renderOutcome(result) {
-    const badgeUrl = result.buildFailed
-        ? 'https://img.shields.io/badge/Build%20Scan%E2%84%A2-FAILED-red?logo=Gradle'
-        : 'https://img.shields.io/badge/Build%20Scan%E2%84%A2-SUCCESS-brightgreen?logo=Gradle';
+    const labelPart = result.buildScanUri ? 'Build%20Scan%E2%84%A2' : 'Build';
+    const outcomePart = result.buildFailed ? 'FAILED-red' : 'SUCCESS-brightgreen';
+    const badgeUrl = `https://img.shields.io/badge/${labelPart}-${outcomePart}?logo=Gradle`;
     const badgeHtml = `<img src="${badgeUrl}" alt="Gradle Build">`;
-    if (result.buildScanUri) {
-        return `<a href="${result.buildScanUri}" rel="nofollow">${badgeHtml}</a>`;
-    }
-    return badgeHtml;
+    const targetUrl = result.buildScanUri ? result.buildScanUri : '#';
+    return `<a href="${targetUrl}" rel="nofollow">${badgeHtml}</a>`;
 }
 
 

dist/post/index.js

@@ -64018,6 +64018,7 @@ class GradleStateCache {
         fs_1.default.appendFileSync(propertiesFile, 'org.gradle.daemon=false');
         const initScriptFilenames = [
             'build-result-capture.init.gradle',
+            'build-result-capture-service.plugin.groovy',
             'project-root-capture.init.gradle',
             'project-root-capture.plugin.groovy'
         ];
@@ -64342,7 +64343,7 @@ class ConfigurationCacheEntryExtractor extends AbstractEntryExtractor {
         });
     }
     getProjectRoots() {
-        const projectList = path_1.default.resolve(this.gradleUserHome, cache_base_1.PROJECT_ROOTS_FILE);
+        const projectList = path_1.default.resolve(process.env['RUNNER_TEMP'], cache_base_1.PROJECT_ROOTS_FILE);
         if (!fs_1.default.existsSync(projectList)) {
             core.info(`Missing project list file ${projectList}`);
             return [];
@@ -64610,7 +64611,7 @@ function isCacheDisabled() {
 }
 exports.isCacheDisabled = isCacheDisabled;
 function isCacheReadOnly() {
-    return core.getBooleanInput(CACHE_READONLY_PARAMETER);
+    return !isCacheWriteOnly() && core.getBooleanInput(CACHE_READONLY_PARAMETER);
 }
 exports.isCacheReadOnly = isCacheReadOnly;
 function isCacheWriteOnly() {
@@ -64951,14 +64952,12 @@ function writeSummaryTable(results) {
     core.summary.addRaw('\n');
 }
 function renderOutcome(result) {
-    const badgeUrl = result.buildFailed
-        ? 'https://img.shields.io/badge/Build%20Scan%E2%84%A2-FAILED-red?logo=Gradle'
-        : 'https://img.shields.io/badge/Build%20Scan%E2%84%A2-SUCCESS-brightgreen?logo=Gradle';
+    const labelPart = result.buildScanUri ? 'Build%20Scan%E2%84%A2' : 'Build';
+    const outcomePart = result.buildFailed ? 'FAILED-red' : 'SUCCESS-brightgreen';
+    const badgeUrl = `https://img.shields.io/badge/${labelPart}-${outcomePart}?logo=Gradle`;
     const badgeHtml = `<img src="${badgeUrl}" alt="Gradle Build">`;
-    if (result.buildScanUri) {
-        return `<a href="${result.buildScanUri}" rel="nofollow">${badgeHtml}</a>`;
-    }
-    return badgeHtml;
+    const targetUrl = result.buildScanUri ? result.buildScanUri : '#';
+    return `<a href="${targetUrl}" rel="nofollow">${badgeHtml}</a>`;
 }
 
 

src/cache-base.ts

@@ -172,6 +172,7 @@ export class GradleStateCache {
 
         const initScriptFilenames = [
             'build-result-capture.init.gradle',
+            'build-result-capture-service.plugin.groovy',
             'project-root-capture.init.gradle',
             'project-root-capture.plugin.groovy'
         ]

src/cache-extract-entries.ts

@@ -387,7 +387,7 @@ export class ConfigurationCacheEntryExtractor extends AbstractEntryExtractor {
      * set of project roots, to allow saving of configuration-cache entries for each.
      */
     private getProjectRoots(): string[] {
-        const projectList = path.resolve(this.gradleUserHome, PROJECT_ROOTS_FILE)
+        const projectList = path.resolve(process.env['RUNNER_TEMP']!, PROJECT_ROOTS_FILE)
         if (!fs.existsSync(projectList)) {
             core.info(`Missing project list file ${projectList}`)
             return []

src/job-summary.ts

@@ -60,13 +60,10 @@ function writeSummaryTable(results: BuildResult[]): void {
 }
 
 function renderOutcome(result: BuildResult): string {
-    const badgeUrl = result.buildFailed
-        ? 'https://img.shields.io/badge/Build%20Scan%E2%84%A2-FAILED-red?logo=Gradle'
-        : 'https://img.shields.io/badge/Build%20Scan%E2%84%A2-SUCCESS-brightgreen?logo=Gradle'
+    const labelPart = result.buildScanUri ? 'Build%20Scan%E2%84%A2' : 'Build'
+    const outcomePart = result.buildFailed ? 'FAILED-red' : 'SUCCESS-brightgreen'
+    const badgeUrl = `https://img.shields.io/badge/${labelPart}-${outcomePart}?logo=Gradle`
     const badgeHtml = `<img src="${badgeUrl}" alt="Gradle Build">`
-
-    if (result.buildScanUri) {
-        return `<a href="${result.buildScanUri}" rel="nofollow">${badgeHtml}</a>`
-    }
-    return badgeHtml
+    const targetUrl = result.buildScanUri ? result.buildScanUri : '#'
+    return `<a href="${targetUrl}" rel="nofollow">${badgeHtml}</a>`
 }

src/resources/build-result-capture-service.plugin.groovy

@@ -0,0 +1,46 @@
+import org.gradle.tooling.events.*
+import org.gradle.tooling.events.task.*
+import org.gradle.util.GradleVersion
+
+// Can't use settingsEvaluated since this script is applied inside a settingsEvaluated handler
+// But projectsEvaluated is good enough, since the build service won't catch configuration failures anyway
+projectsEvaluated {
+    def projectTracker = gradle.sharedServices.registerIfAbsent("gradle-build-action-buildResultsRecorder", BuildResultsRecorder, { spec ->
+        spec.getParameters().getRootProject().set(gradle.rootProject.name)
+        spec.getParameters().getRequestedTasks().set(gradle.startParameter.taskNames.join(" "))
+        spec.getParameters().getInvocationId().set(gradle.ext.invocationId)
+    })
+
+    gradle.services.get(BuildEventsListenerRegistry).onTaskCompletion(projectTracker)
+}
+
+abstract class BuildResultsRecorder implements BuildService<BuildResultsRecorder.Params>, OperationCompletionListener, AutoCloseable {
+    private boolean buildFailed = false
+    interface Params extends BuildServiceParameters {
+        Property<String> getRootProject()
+        Property<String> getRequestedTasks()
+        Property<String> getInvocationId()
+    }
+
+    public void onFinish(FinishEvent finishEvent) {
+        if (finishEvent instanceof TaskFinishEvent && finishEvent.result instanceof TaskFailureResult) {
+            buildFailed = true
+        }
+    }
+
+    @Override
+    public void close() {
+        def buildResults = [
+            rootProject: getParameters().getRootProject().get(), 
+            requestedTasks: getParameters().getRequestedTasks().get(), 
+            gradleVersion: GradleVersion.current().version, 
+            buildFailed: buildFailed,
+            buildScanUri: null
+        ]
+
+        def buildResultsDir = new File(System.getenv("RUNNER_TEMP"), ".build-results")
+        buildResultsDir.mkdirs()
+        def buildResultsFile = new File(buildResultsDir, System.getenv("GITHUB_ACTION") + getParameters().getInvocationId().get() + ".json")
+        buildResultsFile << groovy.json.JsonOutput.toJson(buildResults)
+    }
+}

src/resources/build-result-capture.init.gradle

@@ -7,25 +7,38 @@ import org.gradle.util.GradleVersion
 def isTopLevelBuild = gradle.getParent() == null
 if (isTopLevelBuild) {
     def version = GradleVersion.current().baseVersion
-    def atLeastGradle4 = version >= GradleVersion.version("4.0")
+
+    def atLeastGradle3 = version >= GradleVersion.version("3.0")
     def atLeastGradle6 = version >= GradleVersion.version("6.0")
 
+    def invocationId = "-${System.currentTimeMillis()}"
+
     if (atLeastGradle6) {
+        def useBuildService = version >= GradleVersion.version("6.6")
         settingsEvaluated { settings ->
+            // The `buildScanPublished` hook is the only way to capture the build scan URI.
             if (settings.pluginManager.hasPlugin("com.gradle.enterprise")) {
-                registerCallbacks(settings.extensions["gradleEnterprise"].buildScan, settings.rootProject.name)
+                captureUsingBuildScanPublished(settings.extensions["gradleEnterprise"].buildScan, settings.rootProject.name, invocationId)
+            }
+            // We also need to add hooks in case the plugin is applied but no build scan is published 
+            if (useBuildService) {
+                captureUsingBuildService(settings, invocationId)
+            } else {
+                captureUsingBuildFinished(gradle, invocationId)
             }
         }
-    } else if (atLeastGradle4) {
+    } else if (atLeastGradle3) {
         projectsEvaluated { gradle ->
             if (gradle.rootProject.pluginManager.hasPlugin("com.gradle.build-scan")) {
-                registerCallbacks(gradle.rootProject.extensions["buildScan"], gradle.rootProject.name)
+                captureUsingBuildScanPublished(gradle.rootProject.extensions["buildScan"], gradle.rootProject.name, invocationId)
             }
+            // We  need to capture in buildFinished in case the plugin is applied but no build scan is published 
+            captureUsingBuildFinished(gradle, invocationId)
         }
     }
 }
 
-def registerCallbacks(buildScanExtension, rootProjectName) {
+def captureUsingBuildScanPublished(buildScanExtension, rootProjectName, invocationId) {
     buildScanExtension.with {
         def requestedTasks = gradle.startParameter.taskNames.join(" ")
         def gradleVersion = GradleVersion.current().version
@@ -36,10 +49,6 @@ def registerCallbacks(buildScanExtension, rootProjectName) {
         }
 
         buildScanPublished { buildScan ->
-            def buildResultsDir = new File(System.getenv("RUNNER_TEMP"), ".build-results")
-            buildResultsDir.mkdirs()
-            
-            def buildResultsFile = new File(buildResultsDir, System.getenv("GITHUB_ACTION") + System.currentTimeMillis() + ".json")
 
             def buildScanUri = buildScan.buildScanUri.toASCIIString()
             def buildResults = [
@@ -49,9 +58,41 @@ def registerCallbacks(buildScanExtension, rootProjectName) {
                 buildFailed: buildFailed, 
                 buildScanUri: buildScanUri
             ]
-            buildResultsFile << groovy.json.JsonOutput.toJson(buildResults)
+
+            def buildResultsDir = new File(System.getenv("RUNNER_TEMP"), ".build-results")
+            buildResultsDir.mkdirs()
+            def buildResultsFile = new File(buildResultsDir, System.getenv("GITHUB_ACTION") + invocationId + ".json")
+
+            // Overwrite any contents written by buildFinished or build service, since this result is a superset.
+            if (buildResultsFile.exists()) {
+                buildResultsFile.text = groovy.json.JsonOutput.toJson(buildResults) 
+            } else {
+                buildResultsFile << groovy.json.JsonOutput.toJson(buildResults)
+            }
 
             println("::set-output name=build-scan-url::${buildScan.buildScanUri}")
         }
     }
 }
+
+def captureUsingBuildFinished(gradle, invocationId) {
+    gradle.buildFinished { result ->
+        def buildResults = [
+            rootProject: gradle.rootProject.name, 
+            requestedTasks: gradle.startParameter.taskNames.join(" "),
+            gradleVersion: GradleVersion.current().version, 
+            buildFailed: result.failure != null,
+            buildScanUri: null
+        ]
+
+        def buildResultsDir = new File(System.getenv("RUNNER_TEMP"), ".build-results")
+        buildResultsDir.mkdirs()
+        def buildResultsFile = new File(buildResultsDir, System.getenv("GITHUB_ACTION") + invocationId + ".json")
+        buildResultsFile << groovy.json.JsonOutput.toJson(buildResults)
+    }
+}
+
+def captureUsingBuildService(settings, invocationId) {
+    gradle.ext.invocationId = invocationId
+    apply from: 'build-result-capture-service.plugin.groovy'
+}

src/resources/project-root-capture.plugin.groovy

@@ -10,7 +10,7 @@ import org.gradle.tooling.events.*
 
 settingsEvaluated { settings ->
     def rootDir = settings.rootDir.absolutePath
-    def rootListLocation = new File(settings.gradle.gradleUserHomeDir, "project-roots.txt").absolutePath
+    def rootListLocation = new File(System.getenv("RUNNER_TEMP"), "project-roots.txt").absolutePath
 
     def projectTracker = gradle.sharedServices.registerIfAbsent("gradle-build-action-projectRootTracker", ProjectTracker, { spec ->
         spec.getParameters().getRootDir().set(rootDir);

test/test-init-scripts/.gitignore

@@ -0,0 +1,2 @@
+build
+.gradle

test/test-init-scripts/build.gradle

@@ -0,0 +1,29 @@
+plugins {
+    id 'groovy'
+}
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(8)
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    testImplementation gradleTestKit()
+    testImplementation 'org.spockframework:spock-core:2.1-groovy-3.0'
+    testImplementation('org.spockframework:spock-junit4:2.1-groovy-3.0')
+
+    testImplementation ('io.ratpack:ratpack-groovy-test:1.9.0') {
+        exclude group: 'org.codehaus.groovy', module: 'groovy-all'
+    }
+    testImplementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-smile:2.13.3'
+
+}
+
+test {
+    useJUnitPlatform()
+}

test/test-init-scripts/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.2-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

test/test-init-scripts/gradlew

@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

test/test-init-scripts/gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

test/test-init-scripts/settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'test-init-scripts'

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

@@ -0,0 +1,240 @@
+package com.gradle.gradlebuildaction
+
+import com.fasterxml.jackson.core.JsonFactory
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.dataformat.smile.SmileFactory
+import org.gradle.testkit.runner.BuildResult
+import org.gradle.testkit.runner.GradleRunner
+import org.gradle.testkit.runner.internal.DefaultGradleRunner
+import org.gradle.util.GradleVersion
+import ratpack.groovy.test.embed.GroovyEmbeddedApp
+import spock.lang.AutoCleanup
+import spock.lang.Specification
+import spock.lang.TempDir
+
+import java.nio.file.Files
+import java.util.zip.GZIPOutputStream
+
+class BaseInitScriptTest extends Specification {
+
+    static final TestGradleVersion GRADLE_3_5 = new TestGradleVersion(GradleVersion.version('3.5.1'), 7, 9)
+    static final TestGradleVersion GRADLE_4_0 = new TestGradleVersion(GradleVersion.version('4.0.2'), 7, 9)
+    static final TestGradleVersion GRADLE_4_10 = new TestGradleVersion(GradleVersion.version('4.10.3'), 7, 10)
+    static final TestGradleVersion GRADLE_5_0 = new TestGradleVersion(GradleVersion.version('5.0'), 8, 11)
+    static final TestGradleVersion GRADLE_5_6 = new TestGradleVersion(GradleVersion.version('5.6.4'), 8, 12)
+    static final TestGradleVersion GRADLE_6_0 = new TestGradleVersion(GradleVersion.version('6.0.1'), 8, 13)
+    static final TestGradleVersion GRADLE_6_7 = new TestGradleVersion(GradleVersion.version('6.7'), 8, 15)
+    static final TestGradleVersion GRADLE_7_0 = new TestGradleVersion(GradleVersion.version('7.0.2'), 8, 16)
+    static final TestGradleVersion GRADLE_7_4 = new TestGradleVersion(GradleVersion.version('7.4.2'), 8, 17)
+
+    static final List<TestGradleVersion> ALL_VERSIONS = [
+        GRADLE_3_5, // First version where TestKit supports environment variables
+        GRADLE_4_0,
+        GRADLE_4_10,
+        GRADLE_5_0,
+        GRADLE_5_6,
+        GRADLE_6_0,
+        GRADLE_6_7,
+        GRADLE_7_0,
+        GRADLE_7_4,
+    ]
+
+    static final List<TestGradleVersion> CONFIGURATION_CACHE_VERSIONS =
+        [GRADLE_7_0, GRADLE_7_4]
+
+    static final String PUBLIC_BUILD_SCAN_ID = 'i2wepy2gr7ovw'
+    static final String DEFAULT_SCAN_UPLOAD_TOKEN = 'scan-upload-token'
+    static final String ROOT_PROJECT_NAME = 'test-init-script'
+
+    File settingsFile
+    File buildFile
+
+    @TempDir
+    File testProjectDir
+
+    @AutoCleanup
+    def mockScansServer = GroovyEmbeddedApp.of {
+        def jsonWriter = new ObjectMapper(new JsonFactory()).writer()
+        def smileWriter = new ObjectMapper(new SmileFactory()).writer()
+
+        handlers {
+            post('in/:gradleVersion/:pluginVersion') {
+                def scanUrlString = "${mockScansServer.address}s/$PUBLIC_BUILD_SCAN_ID"
+                def body = [
+                    id     : PUBLIC_BUILD_SCAN_ID,
+                    scanUrl: scanUrlString.toString(),
+                ]
+                def out = new ByteArrayOutputStream()
+                new GZIPOutputStream(out).withStream { smileWriter.writeValue(it, body) }
+                context.response
+                    .contentType('application/vnd.gradle.scan-ack')
+                    .send(out.toByteArray())
+            }
+            prefix('scans/publish') {
+                post('gradle/:pluginVersion/token') {
+                    def pluginVersion = context.pathTokens.pluginVersion
+                    def scanUrlString = "${mockScansServer.address}s/$PUBLIC_BUILD_SCAN_ID"
+                    def body = [
+                        id             : PUBLIC_BUILD_SCAN_ID,
+                        scanUrl        : scanUrlString.toString(),
+                        scanUploadUrl  : "${mockScansServer.address.toString()}scans/publish/gradle/$pluginVersion/upload".toString(),
+                        scanUploadToken: DEFAULT_SCAN_UPLOAD_TOKEN
+                    ]
+                    context.response
+                        .contentType('application/vnd.gradle.scan-ack+json')
+                        .send(jsonWriter.writeValueAsBytes(body))
+                }
+                post('gradle/:pluginVersion/upload') {
+                    context.request.getBody(1024 * 1024 * 10).then {
+                        context.response
+                            .contentType('application/vnd.gradle.scan-upload-ack+json')
+                            .send()
+                    }
+                }
+                notFound()
+            }
+        }
+    }
+
+    def setup() {
+        settingsFile = new File(testProjectDir, 'settings.gradle')
+        buildFile = new File(testProjectDir, 'build.gradle')
+
+        File srcInitScriptsDir = new File("../../src/resources")
+        File targetInitScriptsDir = new File(testProjectDir, "initScripts")
+        targetInitScriptsDir.mkdirs()
+
+        for (File srcInitScript : srcInitScriptsDir.listFiles()) {
+            File targetInitScript = new File(targetInitScriptsDir, srcInitScript.name)
+            Files.copy(srcInitScript.toPath(), targetInitScript.toPath())
+        }
+        settingsFile << "rootProject.name = '${ROOT_PROJECT_NAME}'\n"
+        buildFile << ''
+    }
+
+    def declareGePluginApplication(GradleVersion gradleVersion) {
+        settingsFile.text = maybeAddPluginsToSettings(gradleVersion) + settingsFile.text
+        buildFile.text = maybeAddPluginsToRootProject(gradleVersion) + buildFile.text
+    }
+
+    String maybeAddPluginsToSettings(GradleVersion gradleVersion) {
+        if (gradleVersion < GradleVersion.version('5.0')) {
+            '' // applied in build.gradle
+        } else if (gradleVersion < GradleVersion.version('6.0')) {
+            '' // applied in build.gradle
+        } else {
+            """
+              plugins {
+                id 'com.gradle.enterprise' version '3.4.1'
+              }
+              gradleEnterprise {
+                server = '$mockScansServer.address'
+                buildScan {
+                  publishAlways()
+                }
+              }
+            """
+        }
+    }
+
+    String maybeAddPluginsToRootProject(GradleVersion gradleVersion) {
+        if (gradleVersion < GradleVersion.version('5.0')) {
+            """
+              plugins {
+                id 'com.gradle.build-scan' version '1.16'
+              }
+              buildScan {
+                server = '$mockScansServer.address'
+                publishAlways()
+              }
+            """
+        } else if (gradleVersion < GradleVersion.version('6.0')) {
+            """
+              plugins {
+                id 'com.gradle.build-scan' version '3.4.1'
+              }
+              gradleEnterprise {
+                server = '$mockScansServer.address'
+                buildScan {
+                  publishAlways()
+                }
+              }
+            """
+        } else {
+            '' // applied in settings.gradle
+        }
+    }
+
+    def addFailingTaskToBuild() {
+        buildFile << '''
+task expectFailure {
+    doLast {
+        throw new RuntimeException("Expected to fail")
+    }
+}
+'''
+    }
+
+    BuildResult run(List<String> args, String initScript, GradleVersion gradleVersion = GradleVersion.current(), List<String> jvmArgs = [], Map<String, String> envVars = [:]) {
+        createRunner(initScript, args, gradleVersion, jvmArgs, envVars).build()
+    }
+
+    BuildResult runAndFail(List<String> args, String initScript, GradleVersion gradleVersion = GradleVersion.current(), List<String> jvmArgs = [], Map<String, String> envVars = [:]) {
+        createRunner(initScript, args, gradleVersion, jvmArgs, envVars).buildAndFail()
+    }
+
+    GradleRunner createRunner(String initScript, List<String> args, GradleVersion gradleVersion = GradleVersion.current(), List<String> jvmArgs = [], Map<String, String> envVars = [:]) {
+        File initScriptsDir = new File(testProjectDir, "initScripts")
+        args << '-I' << new File(initScriptsDir, initScript).absolutePath
+
+        envVars['RUNNER_TEMP'] = testProjectDir.absolutePath
+        envVars['GITHUB_ACTION'] = 'github-step-id'
+
+        def runner = ((DefaultGradleRunner) GradleRunner.create())
+            .withJvmArguments(jvmArgs)
+            .withGradleVersion(gradleVersion.version)
+            .withProjectDir(testProjectDir)
+            .withArguments(args)
+            .forwardOutput()
+
+        if (envVars) {
+            runner.withEnvironment(envVars)
+        }
+
+        runner
+    }
+
+    static final class TestGradleVersion {
+
+        final GradleVersion gradleVersion
+        private final Integer jdkMin
+        private final Integer jdkMax
+
+        TestGradleVersion(GradleVersion gradleVersion, Integer jdkMin, Integer jdkMax) {
+            this.gradleVersion = gradleVersion
+            this.jdkMin = jdkMin
+            this.jdkMax = jdkMax
+        }
+
+        boolean isCompatibleWithCurrentJvm() {
+            def jvmVersion = getJvmVersion()
+            jdkMin <= jvmVersion && jvmVersion <= jdkMax
+        }
+
+        private static int getJvmVersion() {
+            String version = System.getProperty('java.version')
+            if (version.startsWith('1.')) {
+                Integer.parseInt(version.substring(2, 3))
+            } else {
+                Integer.parseInt(version.substring(0, version.indexOf('.')))
+            }
+        }
+
+        @Override
+        String toString() {
+            return "Gradle " + gradleVersion.version
+        }
+
+    }
+
+}

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

@@ -0,0 +1,138 @@
+package com.gradle.gradlebuildaction
+
+import groovy.json.JsonSlurper
+
+import static org.junit.Assume.assumeTrue
+
+class TestBuildResultRecorder extends BaseInitScriptTest {
+    def initScript = 'build-result-capture.init.gradle'
+
+    def "produces build results file for build with #testGradleVersion"() {
+        assumeTrue testGradleVersion.compatibleWithCurrentJvm
+
+        when:
+        run(['help'], initScript, testGradleVersion.gradleVersion)
+
+        then:
+        assertResults('help', testGradleVersion, false, false)
+
+        where:
+        testGradleVersion << ALL_VERSIONS
+    }
+
+    def "produces build results file for failing build with #testGradleVersion"() {
+        assumeTrue testGradleVersion.compatibleWithCurrentJvm
+
+        when:
+        addFailingTaskToBuild()
+        runAndFail(['expectFailure'], initScript, testGradleVersion.gradleVersion)
+
+        then:
+        assertResults('expectFailure', testGradleVersion, true, false)
+
+        where:
+        testGradleVersion << ALL_VERSIONS
+    }
+
+    def "produces build results file for build with --configuration-cache on #testGradleVersion"() {
+        assumeTrue testGradleVersion.compatibleWithCurrentJvm
+
+        when:
+        run(['help', '--configuration-cache'], initScript, testGradleVersion.gradleVersion)
+
+        then:
+        assertResults('help', testGradleVersion, false, false)
+        assert buildResultFile.delete()
+
+        when:
+        run(['help', '--configuration-cache'], initScript, testGradleVersion.gradleVersion)
+
+        then:
+        assertResults('help', testGradleVersion, false, false)
+
+        where:
+        testGradleVersion << CONFIGURATION_CACHE_VERSIONS
+    }
+
+    def "produces build results file for #testGradleVersion with build scan published"() {
+        assumeTrue testGradleVersion.compatibleWithCurrentJvm
+
+        when:
+        declareGePluginApplication(testGradleVersion.gradleVersion)
+        run(['help'], initScript, testGradleVersion.gradleVersion)
+
+        then:
+        assertResults('help', testGradleVersion, false, true)
+
+        where:
+        testGradleVersion << ALL_VERSIONS
+    }
+
+    def "produces build results file for #testGradleVersion with ge-plugin and no build scan published"() {
+        assumeTrue testGradleVersion.compatibleWithCurrentJvm
+
+        when:
+        declareGePluginApplication(testGradleVersion.gradleVersion)
+        run(['help', '--no-scan'], initScript, testGradleVersion.gradleVersion)
+
+        then:
+        assertResults('help', testGradleVersion, false, false)
+
+        where:
+        testGradleVersion << ALL_VERSIONS
+    }
+
+    def "produces build results file for failing build on #testGradleVersion with build scan published"() {
+        assumeTrue testGradleVersion.compatibleWithCurrentJvm
+
+        when:
+        declareGePluginApplication(testGradleVersion.gradleVersion)
+        addFailingTaskToBuild()
+        runAndFail(['expectFailure'], initScript, testGradleVersion.gradleVersion)
+
+        then:
+        assertResults('expectFailure', testGradleVersion, true, true)
+
+        where:
+        testGradleVersion << ALL_VERSIONS
+    }
+
+    def "produces build results file for build with --configuration-cache on #testGradleVersion with build scan published"() {
+        assumeTrue testGradleVersion.compatibleWithCurrentJvm
+
+        when:
+        declareGePluginApplication(testGradleVersion.gradleVersion)
+        run(['help', '--configuration-cache'], initScript, testGradleVersion.gradleVersion)
+
+        then:
+        assertResults('help', testGradleVersion, false, true)
+        assert buildResultFile.delete()
+
+        when:
+        run(['help', '--configuration-cache'], initScript, testGradleVersion.gradleVersion)
+
+        then:
+        assertResults('help', testGradleVersion, false, true)
+
+        where:
+        testGradleVersion << CONFIGURATION_CACHE_VERSIONS
+    }
+
+    void assertResults(String task, TestGradleVersion testGradleVersion, boolean hasFailure, boolean hasBuildScan) {
+        def results = new JsonSlurper().parse(buildResultFile)
+        assert results['rootProject'] == ROOT_PROJECT_NAME
+        assert results['requestedTasks'] == task
+        assert results['gradleVersion'] == testGradleVersion.gradleVersion.version
+        assert results['buildFailed'] == hasFailure
+        assert results['buildScanUri'] == (hasBuildScan ? "${mockScansServer.address}s/${PUBLIC_BUILD_SCAN_ID}" : null)
+    }
+
+    private File getBuildResultFile() {
+        def buildResultsDir = new File(testProjectDir, '.build-results')
+        assert buildResultsDir.directory
+        assert buildResultsDir.listFiles().size() == 1
+        def resultsFile = buildResultsDir.listFiles()[0]
+        assert resultsFile.name.startsWith('github-step-id')
+        return resultsFile
+    }
+}

test/test-init-scripts/src/test/groovy/com/gradle/gradlebuildaction/TestProjectRootCapture.groovy

@@ -0,0 +1,77 @@
+package com.gradle.gradlebuildaction
+
+import static org.junit.Assume.assumeTrue
+
+class TestProjectRootCapture extends BaseInitScriptTest {
+    def initScript = 'project-root-capture.init.gradle'
+
+    def "captures project root on #testGradleVersion"() {
+        assumeTrue testGradleVersion.compatibleWithCurrentJvm
+
+        when:
+        run(['help'], initScript, testGradleVersion.gradleVersion)
+
+        then:
+        assertCapturesProjectRoot()
+
+        where:
+        testGradleVersion << CONFIGURATION_CACHE_VERSIONS
+    }
+
+    def "captures project root on #testGradleVersion when build fails"() {
+        assumeTrue testGradleVersion.compatibleWithCurrentJvm
+
+        addFailingTaskToBuild()
+
+        when:
+        runAndFail(['expectFailure'], initScript, testGradleVersion.gradleVersion)
+
+        then:
+        assertCapturesProjectRoot()
+
+        where:
+        testGradleVersion << CONFIGURATION_CACHE_VERSIONS
+    }
+
+    def "captures project root on #testGradleVersion with --configuration-cache"() {
+        assumeTrue testGradleVersion.compatibleWithCurrentJvm
+
+        when:
+        run(['help', '--configuration-cache'], initScript, testGradleVersion.gradleVersion)
+
+        then:
+        assertCapturesProjectRoot()
+        assert projectRootList.delete()
+
+        when:
+        run(['help', '--configuration-cache'], initScript, testGradleVersion.gradleVersion)
+
+        then:
+        assertCapturesProjectRoot()
+
+        where:
+        testGradleVersion << CONFIGURATION_CACHE_VERSIONS
+    }
+
+    def "has no effect on #testVersion"() {
+        assumeTrue testVersion.compatibleWithCurrentJvm
+
+        when:
+        run(['help'], initScript, testVersion.gradleVersion)
+
+        then:
+        assert !projectRootList.exists()
+
+        where:
+        testVersion << (ALL_VERSIONS - CONFIGURATION_CACHE_VERSIONS)
+    }
+
+    private void assertCapturesProjectRoot() {
+        assert projectRootList.exists()
+        assert new File(projectRootList.text.trim()).canonicalPath == testProjectDir.canonicalPath
+    }
+
+    private File getProjectRootList() {
+        new File(testProjectDir, 'project-roots.txt')
+    }
+}