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import * as core from '@actions/core'
const defaultMaxAttempts = 3
const defaultMinSeconds = 10
const defaultMaxSeconds = 20
export class RetryHelper {
private maxAttempts: number
private minSeconds: number
private maxSeconds: number
constructor(
maxAttempts: number = defaultMaxAttempts,
minSeconds: number = defaultMinSeconds,
maxSeconds: number = defaultMaxSeconds
) {
this.maxAttempts = maxAttempts
this.minSeconds = Math.floor(minSeconds)
this.maxSeconds = Math.floor(maxSeconds)
if (this.minSeconds > this.maxSeconds) {
throw new Error('min seconds should be less than or equal to max seconds')
}
}
async execute<T>(action: () => Promise<T>): Promise<T> {
let attempt = 1
while (attempt < this.maxAttempts) {
// Try
try {
return await action()
} catch (err) {
core.info(err.message)
}
// Sleep
const seconds = this.getSleepAmount()
core.info(`Waiting ${seconds} seconds before trying again`)
await this.sleep(seconds)
attempt++
}
// Last attempt
return await action()
}
private getSleepAmount(): number {
return (
Math.floor(Math.random() * (this.maxSeconds - this.minSeconds + 1)) +
this.minSeconds
)
}
private async sleep(seconds: number): Promise<void> {
return new Promise(resolve => setTimeout(resolve, seconds * 1000))
}
}
export async function execute<T>(action: () => Promise<T>): Promise<T> {
const retryHelper = new RetryHelper()
return await retryHelper.execute(action)
}
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