mirror of https://github.com/actions/checkout
553 lines
15 KiB
TypeScript
553 lines
15 KiB
TypeScript
import * as core from '@actions/core'
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import * as exec from '@actions/exec'
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import * as fshelper from './fs-helper'
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import * as io from '@actions/io'
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import * as path from 'path'
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import * as refHelper from './ref-helper'
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import * as regexpHelper from './regexp-helper'
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import * as retryHelper from './retry-helper'
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import {GitVersion} from './git-version'
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// Auth header not supported before 2.9
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// Wire protocol v2 not supported before 2.18
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export const MinimumGitVersion = new GitVersion('2.18')
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export interface IGitCommandManager {
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branchDelete(remote: boolean, branch: string): Promise<void>
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branchExists(remote: boolean, pattern: string): Promise<boolean>
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branchList(remote: boolean): Promise<string[]>
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checkout(ref: string, startPoint: string): Promise<void>
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checkoutDetach(): Promise<void>
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config(
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configKey: string,
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configValue: string,
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globalConfig?: boolean,
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add?: boolean
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): Promise<void>
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configExists(configKey: string, globalConfig?: boolean): Promise<boolean>
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fetch(refSpec: string[], fetchDepth?: number): Promise<void>
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getDefaultBranch(repositoryUrl: string): Promise<string>
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getWorkingDirectory(): string
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init(): Promise<void>
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isDetached(): Promise<boolean>
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lfsFetch(ref: string): Promise<void>
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lfsInstall(): Promise<void>
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log1(format?: string): Promise<string>
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remoteAdd(remoteName: string, remoteUrl: string): Promise<void>
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removeEnvironmentVariable(name: string): void
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revParse(ref: string): Promise<string>
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setEnvironmentVariable(name: string, value: string): void
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shaExists(sha: string): Promise<boolean>
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submoduleForeach(command: string, recursive: boolean): Promise<string>
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submoduleSync(recursive: boolean): Promise<void>
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submoduleUpdate(fetchDepth: number, recursive: boolean): Promise<void>
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submoduleStatus(): Promise<boolean>
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tagExists(pattern: string): Promise<boolean>
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tryClean(): Promise<boolean>
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tryConfigUnset(configKey: string, globalConfig?: boolean): Promise<boolean>
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tryDisableAutomaticGarbageCollection(): Promise<boolean>
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tryGetFetchUrl(): Promise<string>
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tryReset(): Promise<boolean>
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}
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export async function createCommandManager(
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workingDirectory: string,
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lfs: boolean
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): Promise<IGitCommandManager> {
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return await GitCommandManager.createCommandManager(workingDirectory, lfs)
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}
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class GitCommandManager {
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private gitEnv = {
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GIT_TERMINAL_PROMPT: '0', // Disable git prompt
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GCM_INTERACTIVE: 'Never' // Disable prompting for git credential manager
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}
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private gitPath = ''
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private lfs = false
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private workingDirectory = ''
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// Private constructor; use createCommandManager()
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private constructor() {}
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async branchDelete(remote: boolean, branch: string): Promise<void> {
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const args = ['branch', '--delete', '--force']
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if (remote) {
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args.push('--remote')
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}
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args.push(branch)
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await this.execGit(args)
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}
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async branchExists(remote: boolean, pattern: string): Promise<boolean> {
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const args = ['branch', '--list']
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if (remote) {
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args.push('--remote')
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}
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args.push(pattern)
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const output = await this.execGit(args)
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return !!output.stdout.trim()
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}
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async branchList(remote: boolean): Promise<string[]> {
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const result: string[] = []
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// Note, this implementation uses "rev-parse --symbolic-full-name" because the output from
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// "branch --list" is more difficult when in a detached HEAD state.
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// TODO(https://github.com/actions/checkout/issues/786): this implementation uses
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// "rev-parse --symbolic-full-name" because there is a bug
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// in Git 2.18 that causes "rev-parse --symbolic" to output symbolic full names. When
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// 2.18 is no longer supported, we can switch back to --symbolic.
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const args = ['rev-parse', '--symbolic-full-name']
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if (remote) {
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args.push('--remotes=origin')
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} else {
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args.push('--branches')
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}
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const stderr: string[] = []
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const errline: string[] = []
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const stdout: string[] = []
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const stdline: string[] = []
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const listeners = {
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stderr: (data: Buffer) => {
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stderr.push(data.toString())
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},
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errline: (data: Buffer) => {
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errline.push(data.toString())
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},
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stdout: (data: Buffer) => {
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stdout.push(data.toString())
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},
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stdline: (data: Buffer) => {
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stdline.push(data.toString())
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}
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}
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// Suppress the output in order to avoid flooding annotations with innocuous errors.
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await this.execGit(args, false, true, listeners)
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core.debug(`stderr callback is: ${stderr}`)
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core.debug(`errline callback is: ${errline}`)
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core.debug(`stdout callback is: ${stdout}`)
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core.debug(`stdline callback is: ${stdline}`)
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for (let branch of stdline) {
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branch = branch.trim()
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if (!branch) {
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continue
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}
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if (branch.startsWith('refs/heads/')) {
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branch = branch.substring('refs/heads/'.length)
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} else if (branch.startsWith('refs/remotes/')) {
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branch = branch.substring('refs/remotes/'.length)
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}
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result.push(branch)
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}
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return result
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}
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async checkout(ref: string, startPoint: string): Promise<void> {
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const args = ['checkout', '--progress', '--force']
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if (startPoint) {
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args.push('-B', ref, startPoint)
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} else {
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args.push(ref)
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}
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await this.execGit(args)
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}
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async checkoutDetach(): Promise<void> {
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const args = ['checkout', '--detach']
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await this.execGit(args)
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}
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async config(
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configKey: string,
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configValue: string,
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globalConfig?: boolean,
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add?: boolean
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): Promise<void> {
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const args: string[] = ['config', globalConfig ? '--global' : '--local']
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if (add) {
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args.push('--add')
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}
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args.push(...[configKey, configValue])
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await this.execGit(args)
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}
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async configExists(
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configKey: string,
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globalConfig?: boolean
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): Promise<boolean> {
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const pattern = regexpHelper.escape(configKey)
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const output = await this.execGit(
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[
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'config',
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globalConfig ? '--global' : '--local',
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'--name-only',
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'--get-regexp',
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pattern
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],
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true
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)
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return output.exitCode === 0
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}
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async fetch(refSpec: string[], fetchDepth?: number): Promise<void> {
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const args = ['-c', 'protocol.version=2', 'fetch']
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if (!refSpec.some(x => x === refHelper.tagsRefSpec)) {
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args.push('--no-tags')
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}
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args.push('--prune', '--progress', '--no-recurse-submodules')
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if (fetchDepth && fetchDepth > 0) {
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args.push(`--depth=${fetchDepth}`)
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} else if (
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fshelper.fileExistsSync(
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path.join(this.workingDirectory, '.git', 'shallow')
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)
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) {
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args.push('--unshallow')
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}
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args.push('origin')
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for (const arg of refSpec) {
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args.push(arg)
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}
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const that = this
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await retryHelper.execute(async () => {
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await that.execGit(args)
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})
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}
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async getDefaultBranch(repositoryUrl: string): Promise<string> {
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let output: GitOutput | undefined
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await retryHelper.execute(async () => {
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output = await this.execGit([
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'ls-remote',
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'--quiet',
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'--exit-code',
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'--symref',
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repositoryUrl,
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'HEAD'
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])
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})
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if (output) {
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// Satisfy compiler, will always be set
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for (let line of output.stdout.trim().split('\n')) {
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line = line.trim()
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if (line.startsWith('ref:') || line.endsWith('HEAD')) {
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return line
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.substr('ref:'.length, line.length - 'ref:'.length - 'HEAD'.length)
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.trim()
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}
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}
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}
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throw new Error('Unexpected output when retrieving default branch')
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}
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getWorkingDirectory(): string {
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return this.workingDirectory
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}
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async init(): Promise<void> {
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await this.execGit(['init', this.workingDirectory])
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}
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async isDetached(): Promise<boolean> {
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// Note, "branch --show-current" would be simpler but isn't available until Git 2.22
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const output = await this.execGit(
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['rev-parse', '--symbolic-full-name', '--verify', '--quiet', 'HEAD'],
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true
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)
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return !output.stdout.trim().startsWith('refs/heads/')
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}
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async lfsFetch(ref: string): Promise<void> {
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const args = ['lfs', 'fetch', 'origin', ref]
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const that = this
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await retryHelper.execute(async () => {
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await that.execGit(args)
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})
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}
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async lfsInstall(): Promise<void> {
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await this.execGit(['lfs', 'install', '--local'])
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}
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async log1(format?: string): Promise<string> {
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var args = format ? ['log', '-1', format] : ['log', '-1']
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var silent = format ? false : true
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const output = await this.execGit(args, false, silent)
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return output.stdout
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}
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async remoteAdd(remoteName: string, remoteUrl: string): Promise<void> {
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await this.execGit(['remote', 'add', remoteName, remoteUrl])
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}
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removeEnvironmentVariable(name: string): void {
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delete this.gitEnv[name]
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}
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/**
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* Resolves a ref to a SHA. For a branch or lightweight tag, the commit SHA is returned.
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* For an annotated tag, the tag SHA is returned.
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* @param {string} ref For example: 'refs/heads/main' or '/refs/tags/v1'
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* @returns {Promise<string>}
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*/
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async revParse(ref: string): Promise<string> {
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const output = await this.execGit(['rev-parse', ref])
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return output.stdout.trim()
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}
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setEnvironmentVariable(name: string, value: string): void {
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this.gitEnv[name] = value
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}
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async shaExists(sha: string): Promise<boolean> {
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const args = ['rev-parse', '--verify', '--quiet', `${sha}^{object}`]
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const output = await this.execGit(args, true)
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return output.exitCode === 0
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}
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async submoduleForeach(command: string, recursive: boolean): Promise<string> {
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const args = ['submodule', 'foreach']
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if (recursive) {
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args.push('--recursive')
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}
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args.push(command)
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const output = await this.execGit(args)
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return output.stdout
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}
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async submoduleSync(recursive: boolean): Promise<void> {
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const args = ['submodule', 'sync']
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if (recursive) {
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args.push('--recursive')
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}
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await this.execGit(args)
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}
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async submoduleUpdate(fetchDepth: number, recursive: boolean): Promise<void> {
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const args = ['-c', 'protocol.version=2']
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args.push('submodule', 'update', '--init', '--force')
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if (fetchDepth > 0) {
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args.push(`--depth=${fetchDepth}`)
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}
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if (recursive) {
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args.push('--recursive')
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}
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await this.execGit(args)
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}
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async submoduleStatus(): Promise<boolean> {
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const output = await this.execGit(['submodule', 'status'], true)
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core.debug(output.stdout)
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return output.exitCode === 0
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}
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async tagExists(pattern: string): Promise<boolean> {
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const output = await this.execGit(['tag', '--list', pattern])
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return !!output.stdout.trim()
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}
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async tryClean(): Promise<boolean> {
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const output = await this.execGit(['clean', '-ffdx'], true)
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return output.exitCode === 0
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}
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async tryConfigUnset(
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configKey: string,
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globalConfig?: boolean
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): Promise<boolean> {
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const output = await this.execGit(
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[
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'config',
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globalConfig ? '--global' : '--local',
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'--unset-all',
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configKey
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],
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true
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)
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return output.exitCode === 0
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}
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async tryDisableAutomaticGarbageCollection(): Promise<boolean> {
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const output = await this.execGit(
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['config', '--local', 'gc.auto', '0'],
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true
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)
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return output.exitCode === 0
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}
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async tryGetFetchUrl(): Promise<string> {
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const output = await this.execGit(
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['config', '--local', '--get', 'remote.origin.url'],
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true
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)
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if (output.exitCode !== 0) {
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return ''
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}
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const stdout = output.stdout.trim()
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if (stdout.includes('\n')) {
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return ''
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}
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return stdout
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}
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async tryReset(): Promise<boolean> {
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const output = await this.execGit(['reset', '--hard', 'HEAD'], true)
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return output.exitCode === 0
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}
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static async createCommandManager(
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workingDirectory: string,
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lfs: boolean
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): Promise<GitCommandManager> {
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const result = new GitCommandManager()
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await result.initializeCommandManager(workingDirectory, lfs)
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return result
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}
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private async execGit(
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args: string[],
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allowAllExitCodes = false,
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silent = false,
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customListeners = {}
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): Promise<GitOutput> {
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fshelper.directoryExistsSync(this.workingDirectory, true)
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const result = new GitOutput()
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const env = {}
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for (const key of Object.keys(process.env)) {
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env[key] = process.env[key]
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}
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for (const key of Object.keys(this.gitEnv)) {
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env[key] = this.gitEnv[key]
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}
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const defaultListener = {
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stdout: (data: Buffer) => {
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stdout.push(data.toString())
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}
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}
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const mergedListeners = {...defaultListener, ...customListeners}
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const stdout: string[] = []
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const options = {
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cwd: this.workingDirectory,
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env,
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silent,
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ignoreReturnCode: allowAllExitCodes,
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listeners: mergedListeners
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}
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result.exitCode = await exec.exec(`"${this.gitPath}"`, args, options)
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result.stdout = stdout.join('')
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core.debug(result.exitCode.toString())
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core.debug(result.stdout)
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return result
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}
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private async initializeCommandManager(
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workingDirectory: string,
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lfs: boolean
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): Promise<void> {
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this.workingDirectory = workingDirectory
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// Git-lfs will try to pull down assets if any of the local/user/system setting exist.
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// If the user didn't enable `LFS` in their pipeline definition, disable LFS fetch/checkout.
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this.lfs = lfs
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if (!this.lfs) {
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this.gitEnv['GIT_LFS_SKIP_SMUDGE'] = '1'
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}
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this.gitPath = await io.which('git', true)
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// Git version
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core.debug('Getting git version')
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let gitVersion = new GitVersion()
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let gitOutput = await this.execGit(['version'])
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let stdout = gitOutput.stdout.trim()
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if (!stdout.includes('\n')) {
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const match = stdout.match(/\d+\.\d+(\.\d+)?/)
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if (match) {
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gitVersion = new GitVersion(match[0])
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}
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}
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if (!gitVersion.isValid()) {
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throw new Error('Unable to determine git version')
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}
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// Minimum git version
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if (!gitVersion.checkMinimum(MinimumGitVersion)) {
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throw new Error(
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`Minimum required git version is ${MinimumGitVersion}. Your git ('${this.gitPath}') is ${gitVersion}`
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)
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}
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if (this.lfs) {
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// Git-lfs version
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core.debug('Getting git-lfs version')
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let gitLfsVersion = new GitVersion()
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const gitLfsPath = await io.which('git-lfs', true)
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gitOutput = await this.execGit(['lfs', 'version'])
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stdout = gitOutput.stdout.trim()
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if (!stdout.includes('\n')) {
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const match = stdout.match(/\d+\.\d+(\.\d+)?/)
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if (match) {
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gitLfsVersion = new GitVersion(match[0])
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}
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}
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if (!gitLfsVersion.isValid()) {
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throw new Error('Unable to determine git-lfs version')
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}
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// Minimum git-lfs version
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// Note:
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// - Auth header not supported before 2.1
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const minimumGitLfsVersion = new GitVersion('2.1')
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if (!gitLfsVersion.checkMinimum(minimumGitLfsVersion)) {
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throw new Error(
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`Minimum required git-lfs version is ${minimumGitLfsVersion}. Your git-lfs ('${gitLfsPath}') is ${gitLfsVersion}`
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)
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}
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}
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// Set the user agent
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const gitHttpUserAgent = `git/${gitVersion} (github-actions-checkout)`
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core.debug(`Set git useragent to: ${gitHttpUserAgent}`)
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this.gitEnv['GIT_HTTP_USER_AGENT'] = gitHttpUserAgent
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}
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}
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class GitOutput {
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stdout = ''
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exitCode = 0
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}
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