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68 lines
2.0 KiB
PowerShell
68 lines
2.0 KiB
PowerShell
# Copyright (c) 2016 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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$myPath = Split-Path $MyInvocation.MyCommand.Path -Parent
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function GetEnvVar([string] $key, [scriptblock] $defaultFn) {
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if (Test-Path "Env:\$key") {
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return Get-ChildItem $Env $key
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}
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return $defaultFn.Invoke()
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}
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$cipdClientVer = GetEnvVar "CIPD_CLIENT_VER" {
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Get-Content (Join-Path $myPath -ChildPath 'cipd_client_version') -TotalCount 1
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}
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$cipdClientSrv = GetEnvVar "CIPD_CLIENT_SRV" {
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"https://chrome-infra-packages.appspot.com"
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}
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$plat="windows"
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if ([environment]::Is64BitOperatingSystem) {
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$arch="amd64"
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} else {
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$arch="386"
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}
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$url = "$cipdClientSrv/client?platform=$plat-$arch&version=$cipdClientVer"
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$client = Join-Path $myPath -ChildPath ".cipd_client.exe"
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try {
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$depot_tools_version = &git -C $myPath rev-parse HEAD 2>&1
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if ($LastExitCode -eq 0) {
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$user_agent = "depot_tools/$depot_tools_version"
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} else {
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$user_agent = "depot_tools/???"
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}
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} catch [System.Management.Automation.CommandNotFoundException] {
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$user_agent = "depot_tools/no_git/???"
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}
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$Env:CIPD_HTTP_USER_AGENT_PREFIX = $user_agent
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# Use a lock fle to prevent simultaneous processes from stepping on each other.
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$cipd_lock = Join-Path $myPath -ChildPath '.cipd_client.lock'
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while ($true) {
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$cipd_lock_file = $false
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try {
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$cipd_lock_file = [IO.File]::OpenWrite($cipd_lock)
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if (!(Test-Path $client)) {
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echo "Bootstrapping cipd client for $plat-$arch from $url..."
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$wc = (New-Object System.Net.WebClient)
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$wc.Headers.add('User-Agent', $user_agent)
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$wc.DownloadFile($url, $client)
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}
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break
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} catch {
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echo "CIPD lock is held, trying again after delay..."
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Start-Sleep -s 1
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} finally {
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if ($cipd_lock_file) {
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$cipd_lock_file.close()
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}
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}
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}
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