gradle-build-action/src/caches.ts
Daz DeBoer 76ea8a76b2
Treat configuration-cache as an extracted entry
Instead of using a fallback strategy to locate a configuration-cache entry
based on the current job and git SHA, these entries are now keyed based on their
file content with the keys persisted in the primary Gradle User Home entry.

This removes the chance of having a configuration-cache entry restored that is
incompatible with the restored Gradle User Home state, and makes the logic easier
to understand.

This change involved a fairly major refactor, with the CacheEntryExtractor being
split out from the primary cache implementation, and adding a separate extractor
implementation for configuration-cache.
2021-12-30 16:03:02 -07:00

79 lines
2.4 KiB
TypeScript

import * as core from '@actions/core'
import {isCacheDisabled, isCacheReadOnly} from './cache-utils'
import {logCachingReport, CacheListener} from './cache-reporting'
import {GradleStateCache} from './cache-base'
const CACHE_RESTORED_VAR = 'GRADLE_BUILD_ACTION_CACHE_RESTORED'
const GRADLE_USER_HOME = 'GRADLE_USER_HOME'
const CACHE_LISTENER = 'CACHE_LISTENER'
export async function restore(gradleUserHome: string): Promise<void> {
if (!shouldRestoreCaches()) {
return
}
const gradleStateCache = new GradleStateCache(gradleUserHome)
gradleStateCache.init()
await core.group('Restore Gradle state from cache', async () => {
core.saveState(GRADLE_USER_HOME, gradleUserHome)
const cacheListener = new CacheListener()
await gradleStateCache.restore(cacheListener)
core.saveState(CACHE_LISTENER, cacheListener.stringify())
})
// Export var that is detected in all later restore steps
core.exportVariable(CACHE_RESTORED_VAR, true)
// Export state that is detected in corresponding post-action step
core.saveState(CACHE_RESTORED_VAR, true)
}
export async function save(): Promise<void> {
if (!shouldSaveCaches()) {
return
}
const cacheListener: CacheListener = CacheListener.rehydrate(core.getState(CACHE_LISTENER))
if (isCacheReadOnly()) {
core.info('Cache is read-only: will not save state for use in subsequent builds.')
logCachingReport(cacheListener)
return
}
await core.group('Caching Gradle state', async () => {
const gradleUserHome = core.getState(GRADLE_USER_HOME)
return new GradleStateCache(gradleUserHome).save(cacheListener)
})
logCachingReport(cacheListener)
}
function shouldRestoreCaches(): boolean {
if (isCacheDisabled()) {
core.info('Cache is disabled: will not restore state from previous builds.')
return false
}
if (process.env[CACHE_RESTORED_VAR]) {
core.info('Cache only restored on first action step.')
return false
}
return true
}
function shouldSaveCaches(): boolean {
if (isCacheDisabled()) {
core.info('Cache is disabled: will not save state for later builds.')
return false
}
if (!core.getState(CACHE_RESTORED_VAR)) {
core.info('Cache will only be saved in final post-action step.')
return false
}
return true
}