Refactor input parameters

Moved reading of all input parameters into a common source: `input-params.ts`.
This centralized all input parameter reads, and allowed an improved implementation
of reading boolean parameters. In particular, the implementation now provides a default
value for a boolean input parameter that isn't declared for an action.

src/cache-base.ts

@@ -2,6 +2,7 @@ import * as core from '@actions/core'
 import * as exec from '@actions/exec'
 import path from 'path'
 import fs from 'fs'
+import * as params from './input-params'
 import {CacheListener} from './cache-reporting'
 import {saveCache, restoreCache, cacheDebug, isCacheDebuggingEnabled, tryDelete, generateCacheKey} from './cache-utils'
 import {GradleHomeEntryExtractor} from './cache-extract-entries'
@@ -9,8 +10,6 @@ import {GradleHomeEntryExtractor} from './cache-extract-entries'
 const RESTORED_CACHE_KEY_KEY = 'restored-cache-key'
 
 export const META_FILE_DIR = '.gradle-build-action'
-const INCLUDE_PATHS_PARAMETER = 'gradle-home-cache-includes'
-const EXCLUDE_PATHS_PARAMETER = 'gradle-home-cache-excludes'
 
 export class GradleStateCache {
     private cacheName: string
@@ -142,7 +141,7 @@ export class GradleStateCache {
      * Delete any file paths that are excluded by the `gradle-home-cache-excludes` parameter.
      */
     private deleteExcludedPaths(): void {
-        const rawPaths: string[] = core.getMultilineInput(EXCLUDE_PATHS_PARAMETER)
+        const rawPaths: string[] = params.getCacheExcludes()
         const resolvedPaths = rawPaths.map(x => path.resolve(this.gradleUserHome, x))
 
         for (const p of resolvedPaths) {
@@ -157,7 +156,7 @@ export class GradleStateCache {
      * but this can be overridden by the `gradle-home-cache-includes` parameter.
      */
     protected getCachePath(): string[] {
-        const rawPaths: string[] = core.getMultilineInput(INCLUDE_PATHS_PARAMETER)
+        const rawPaths: string[] = params.getCacheIncludes()
         rawPaths.push(META_FILE_DIR)
         const resolvedPaths = rawPaths.map(x => this.resolveCachePath(x))
         cacheDebug(`Using cache paths: ${resolvedPaths}`)

src/cache-extract-entries.ts

@@ -3,17 +3,11 @@ import fs from 'fs'
 import * as core from '@actions/core'
 import * as glob from '@actions/glob'
 
+import * as params from './input-params'
+
 import {META_FILE_DIR} from './cache-base'
 import {CacheEntryListener, CacheListener} from './cache-reporting'
-import {
-    cacheDebug,
-    getCacheKeyPrefix,
-    hashFileNames,
-    isCacheDebuggingEnabled,
-    restoreCache,
-    saveCache,
-    tryDelete
-} from './cache-utils'
+import {cacheDebug, getCacheKeyPrefix, hashFileNames, restoreCache, saveCache, tryDelete} from './cache-utils'
 import {loadBuildResults} from './build-results'
 
 const SKIP_RESTORE_VAR = 'GRADLE_BUILD_ACTION_SKIP_RESTORE'
@@ -246,7 +240,7 @@ abstract class AbstractEntryExtractor {
 
     // Run actions sequentially if debugging is enabled
     private async awaitForDebugging(p: Promise<ExtractedCacheEntry>): Promise<ExtractedCacheEntry> {
-        if (isCacheDebuggingEnabled()) {
+        if (params.isCacheDebuggingEnabled()) {
             await p
         }
         return p

src/cache-utils.ts

@@ -7,18 +7,12 @@ import * as crypto from 'crypto'
 import * as path from 'path'
 import * as fs from 'fs'
 
+import * as params from './input-params'
+
 import {CacheEntryListener} from './cache-reporting'
 
 const CACHE_PROTOCOL_VERSION = 'v8-'
 
-const JOB_CONTEXT_PARAMETER = 'workflow-job-context'
-const CACHE_DISABLED_PARAMETER = 'cache-disabled'
-const CACHE_READONLY_PARAMETER = 'cache-read-only'
-const CACHE_WRITEONLY_PARAMETER = 'cache-write-only'
-const STRICT_CACHE_MATCH_PARAMETER = 'gradle-home-cache-strict-match'
-const CACHE_CLEANUP_ENABLED_PARAMETER = 'gradle-home-cache-cleanup'
-const CACHE_DEBUG_VAR = 'GRADLE_BUILD_ACTION_CACHE_DEBUG_ENABLED'
-
 const CACHE_KEY_PREFIX_VAR = 'GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX'
 const CACHE_KEY_OS_VAR = 'GRADLE_BUILD_ACTION_CACHE_KEY_ENVIRONMENT'
 const CACHE_KEY_JOB_VAR = 'GRADLE_BUILD_ACTION_CACHE_KEY_JOB'
@@ -32,23 +26,23 @@ export function isCacheDisabled(): boolean {
     if (!cache.isFeatureAvailable()) {
         return true
     }
-    return core.getBooleanInput(CACHE_DISABLED_PARAMETER)
+    return params.isCacheDisabled()
 }
 
 export function isCacheReadOnly(): boolean {
-    return !isCacheWriteOnly() && core.getBooleanInput(CACHE_READONLY_PARAMETER)
+    return !isCacheWriteOnly() && params.isCacheReadOnly()
 }
 
 export function isCacheWriteOnly(): boolean {
-    return core.getBooleanInput(CACHE_WRITEONLY_PARAMETER)
+    return params.isCacheWriteOnly()
 }
 
 export function isCacheDebuggingEnabled(): boolean {
-    return process.env[CACHE_DEBUG_VAR] ? true : false
+    return params.isCacheDebuggingEnabled()
 }
 
 export function isCacheCleanupEnabled(): boolean {
-    return core.getBooleanInput(CACHE_CLEANUP_ENABLED_PARAMETER)
+    return params.isCacheCleanupEnabled()
 }
 
 /**
@@ -97,7 +91,7 @@ export function generateCacheKey(cacheName: string): CacheKey {
     // Exact match on Git SHA
     const cacheKey = `${cacheKeyForJobContext}-${getCacheKeyJobExecution()}`
 
-    if (core.getBooleanInput(STRICT_CACHE_MATCH_PARAMETER)) {
+    if (params.isCacheStrictMatch()) {
         return new CacheKey(cacheKey, [cacheKeyForJobContext])
     }
 
@@ -126,7 +120,7 @@ function getCacheKeyJobInstance(): string {
 
     // By default, we hash the full `matrix` data for the run, to uniquely identify this job invocation
     // The only way we can obtain the `matrix` data is via the `workflow-job-context` parameter in action.yml.
-    const workflowJobContext = core.getInput(JOB_CONTEXT_PARAMETER)
+    const workflowJobContext = params.getJobContext()
     return hashStrings([workflowJobContext])
 }
 

src/input-params.ts

@@ -0,0 +1,77 @@
+import * as core from '@actions/core'
+import {parseArgsStringToArgv} from 'string-argv'
+
+export function isCacheDisabled(): boolean {
+    return getBooleanInput('cache-disabled')
+}
+
+export function isCacheReadOnly(): boolean {
+    return getBooleanInput('cache-read-only')
+}
+
+export function isCacheWriteOnly(): boolean {
+    return getBooleanInput('cache-write-only')
+}
+
+export function isCacheStrictMatch(): boolean {
+    return getBooleanInput('gradle-home-cache-strict-match')
+}
+
+export function isCacheDebuggingEnabled(): boolean {
+    return process.env['GRADLE_BUILD_ACTION_CACHE_DEBUG_ENABLED'] ? true : false
+}
+
+export function isCacheCleanupEnabled(): boolean {
+    return getBooleanInput('gradle-home-cache-cleanup')
+}
+
+export function getCacheIncludes(): string[] {
+    return core.getMultilineInput('gradle-home-cache-includes')
+}
+
+export function getCacheExcludes(): string[] {
+    return core.getMultilineInput('gradle-home-cache-excludes')
+}
+
+export function getBuildRootDirectory(): string {
+    return core.getInput('build-root-directory')
+}
+
+export function getGradleVersion(): string {
+    return core.getInput('gradle-version')
+}
+
+export function getGradleExecutable(): string {
+    return core.getInput('gradle-executable')
+}
+
+export function getArguments(): string[] {
+    const input = core.getInput('arguments')
+    return parseArgsStringToArgv(input)
+}
+
+// Internal parameters
+export function getJobContext(): string {
+    return core.getInput('workflow-job-context')
+}
+
+export function getGithubToken(): string {
+    return core.getInput('github-token', {required: true})
+}
+
+export function isJobSummaryEnabled(): boolean {
+    return getBooleanInput('generate-job-summary', true)
+}
+
+function getBooleanInput(paramName: string, paramDefault = false): boolean {
+    const paramValue = core.getInput(paramName)
+    switch (paramValue.toLowerCase().trim()) {
+        case '':
+            return paramDefault
+        case 'false':
+            return false
+        case 'true':
+            return true
+    }
+    throw TypeError(`The value '${paramValue} is not valid for '${paramName}. Valid values are: [true, false]`)
+}

src/main.ts

@@ -1,10 +1,10 @@
 import * as core from '@actions/core'
-import {parseArgsStringToArgv} from 'string-argv'
 
 import * as setupGradle from './setup-gradle'
 import * as execution from './execution'
 import * as provisioner from './provision'
 import * as layout from './repository-layout'
+import * as params from './input-params'
 
 /**
  * The main entry point for the action, called by Github Actions for the step.
@@ -18,7 +18,7 @@ export async function run(): Promise<void> {
         const executable = await provisioner.provisionGradle()
 
         // Only execute if arguments have been provided
-        const args: string[] = parseCommandLineArguments()
+        const args: string[] = params.getArguments()
         if (args.length > 0) {
             const buildRootDirectory = layout.buildRootDirectory()
             await execution.executeGradleBuild(executable, buildRootDirectory, args)
@@ -32,8 +32,3 @@ export async function run(): Promise<void> {
 }
 
 run()
-
-function parseCommandLineArguments(): string[] {
-    const input = core.getInput('arguments')
-    return parseArgsStringToArgv(input)
-}

src/provision.ts

@@ -7,6 +7,7 @@ import * as cache from '@actions/cache'
 import * as toolCache from '@actions/tool-cache'
 
 import * as gradlew from './gradlew'
+import * as params from './input-params'
 import * as layout from './repository-layout'
 import {handleCacheFailure, isCacheDisabled, isCacheReadOnly} from './cache-utils'
 
@@ -17,12 +18,12 @@ const gradleVersionsBaseUrl = 'https://services.gradle.org/versions'
  * @return Installed Gradle executable or undefined if no version configured.
  */
 export async function provisionGradle(): Promise<string | undefined> {
-    const gradleVersion = core.getInput('gradle-version')
+    const gradleVersion = params.getGradleVersion()
     if (gradleVersion !== '' && gradleVersion !== 'wrapper') {
         return addToPath(path.resolve(await installGradle(gradleVersion)))
     }
 
-    const gradleExecutable = core.getInput('gradle-executable')
+    const gradleExecutable = params.getGradleExecutable()
     if (gradleExecutable !== '') {
         const workspaceDirectory = layout.workspaceDirectory()
         return addToPath(path.resolve(workspaceDirectory, gradleExecutable))

src/repository-layout.ts

@@ -1,4 +1,4 @@
-import * as core from '@actions/core'
+import * as params from './input-params'
 import * as path from 'path'
 
 export function workspaceDirectory(): string {
@@ -7,7 +7,7 @@ export function workspaceDirectory(): string {
 
 export function buildRootDirectory(): string {
     const baseDirectory = workspaceDirectory()
-    const buildRootDirectoryInput = core.getInput('build-root-directory')
+    const buildRootDirectoryInput = params.getBuildRootDirectory()
     const resolvedBuildRootDirectory =
         buildRootDirectoryInput === ''
             ? path.resolve(baseDirectory)

src/setup-gradle.ts

@@ -5,6 +5,7 @@ import * as path from 'path'
 import * as os from 'os'
 import * as caches from './caches'
 import * as layout from './repository-layout'
+import * as params from './input-params'
 
 import {logJobSummary, writeJobSummary} from './job-summary'
 import {loadBuildResults} from './build-results'
@@ -14,7 +15,6 @@ import {DaemonController} from './daemon-controller'
 const GRADLE_SETUP_VAR = 'GRADLE_BUILD_ACTION_SETUP_COMPLETED'
 const GRADLE_USER_HOME = 'GRADLE_USER_HOME'
 const CACHE_LISTENER = 'CACHE_LISTENER'
-const JOB_SUMMARY_ENABLED_PARAMETER = 'generate-job-summary'
 
 export async function setup(): Promise<void> {
     const gradleUserHome = await determineGradleUserHome()
@@ -93,5 +93,5 @@ function shouldGenerateJobSummary(): boolean {
         return false
     }
 
-    return core.getBooleanInput(JOB_SUMMARY_ENABLED_PARAMETER)
+    return params.isJobSummaryEnabled()
 }