Implement builders to build Go from source code

This commit is contained in:
MaksimZhukov 2020-06-09 22:52:06 +03:00
parent 8c06ab5f1e
commit 6cf25b0561
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[submodule "helpers"]
path = helpers
url = https://github.com/actions/versions-package-tools
branch = master

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# Contributor Covenant Code of Conduct
## Our Pledge
In the interest of fostering an open and welcoming environment, we as
contributors and maintainers pledge to make participation in our project and
our community a harassment-free experience for everyone, regardless of age, body
size, disability, ethnicity, sex characteristics, gender identity and expression,
level of experience, education, socio-economic status, nationality, personal
appearance, race, religion, or sexual identity and orientation.
## Our Standards
Examples of behavior that contributes to creating a positive environment
include:
* Using welcoming and inclusive language
* Being respectful of differing viewpoints and experiences
* Gracefully accepting constructive criticism
* Focusing on what is best for the community
* Showing empathy towards other community members
Examples of unacceptable behavior by participants include:
* The use of sexualized language or imagery and unwelcome sexual attention or
advances
* Trolling, insulting/derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others' private information, such as a physical or electronic
address, without explicit permission
* Other conduct which could reasonably be considered inappropriate in a
professional setting
## Our Responsibilities
Project maintainers are responsible for clarifying the standards of acceptable
behavior and are expected to take appropriate and fair corrective action in
response to any instances of unacceptable behavior.
Project maintainers have the right and responsibility to remove, edit, or
reject comments, commits, code, wiki edits, issues, and other contributions
that are not aligned to this Code of Conduct, or to ban temporarily or
permanently any contributor for other behaviors that they deem inappropriate,
threatening, offensive, or harmful.
## Scope
This Code of Conduct applies within all project spaces, and it also applies when
an individual is representing the project or its community in public spaces.
Examples of representing a project or community include using an official
project e-mail address, posting via an official social media account, or acting
as an appointed representative at an online or offline event. Representation of
a project may be further defined and clarified by project maintainers.
## Enforcement
Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported by contacting the project team at opensource@github.com. All
complaints will be reviewed and investigated and will result in a response that
is deemed necessary and appropriate to the circumstances. The project team is
obligated to maintain confidentiality with regard to the reporter of an incident.
Further details of specific enforcement policies may be posted separately.
Project maintainers who do not follow or enforce the Code of Conduct in good
faith may face temporary or permanent repercussions as determined by other
members of the project's leadership.
## Attribution
This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
[homepage]: https://www.contributor-covenant.org
For answers to common questions about this code of conduct, see
https://www.contributor-covenant.org/faq

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## Contributing
[fork]: https://github.com/actions/go-versions/fork
[pr]: https://github.com/actions/go-versions/compare
[code-of-conduct]: CODE_OF_CONDUCT.md
Hi there! We're thrilled that you'd like to contribute to this project. Your help is essential for keeping it great.
Contributions to this project are [released](https://help.github.com/articles/github-terms-of-service/#6-contributions-under-repository-license) to the public under the [MIT](LICENSE.md).
Please note that this project is released with a [Contributor Code of Conduct][code-of-conduct]. By participating in this project you agree to abide by its terms.
## Submitting a pull request
1. [Fork][fork] and clone the repository
1. Create a new branch: `git checkout -b my-branch-name`
1. Make your changes
1. Push to your fork and [submit a pull request][pr]
1. Make sure that checks in your pull request are green
Here are a few things you can do that will increase the likelihood of your pull request being accepted:
- Please include a summary of the change and which issue is fixed. Also include relevant motivation and context.
- Follow the style guide for [PowerShell](https://github.com/PoshCode/PowerShellPracticeAndStyle).
- Write [good commit messages](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html).
## Code structure
### Directory structure
```
├── azure-pipelines/
| └──templates/
├── builders/
├── helpers/
├── installers/
└── tests/
└──sources/
```
- `azure-pipelines*` - contains global YAML definitions for build pipelines. Reusable templates for specific jobs are located in `templates` subfolder.
- `builders` - contains Go builder classes and functions.
- `helpers` - contains global helper functions and functions.
- `installers` - contains installation script templates.
- `tests` - contains test scripts. Required tests sources are located in `sources` subfolder.
\* _We use Azure Pipelines because there are a few features that Actions is still missing, we'll move to Actions as soon as possible_.
## Resources
- [How to Contribute to Open Source](https://opensource.guide/how-to-contribute/)
- [Using Pull Requests](https://help.github.com/articles/about-pull-requests/)
- [GitHub Help](https://help.github.com)

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MIT License
Copyright (c) 2020 GitHub
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# Go for Actions
This repository contains the code and scripts that we use to prepare Go packages used in [virtual-environments](https://github.com/actions/virtual-environments) and accessible through the [setup-go](https://github.com/actions/setup-go) Action.
The file [versions-manifest.json](./versions-manifest.json) contains the list of available and released versions.
> Caution: this is prepared for and only permitted for use by actions `virtual-environments` and `setup-go` action.
**Status**: Currently under development and in use for beta and preview actions. This repo is undergoing rapid changes.
Latest of LTS versions will be installed on the [virtual-environments](https://github.com/actions/virtual-environments) images. Other versions will be pulled JIT using the [`setup-go`](https://github.com/actions/setup-go) action.
## Adding new versions
We are trying to prepare packages for new versions of Go as soon as they are released. Please open an issue if any versions are missing.
## Contribution
Contributions are welcome! See [Contributor's Guide](./CONTRIBUTING.md) for more details about contribution process and code structure

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If you discover a security issue in this repo, please submit it through the [GitHub Security Bug Bounty](https://hackerone.com/github)
Thanks for helping make GitHub Actions safe for everyone.

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name: $(date:yyyyMMdd)$(rev:.r)-Go-$(VERSION)
trigger: none
pr:
autoCancel: true
branches:
include:
- master
paths:
exclude:
- versions-manifest.json
stages:
- stage: Build_Go_Darwin
dependsOn: []
variables:
Platform: darwin
Architecture: x64
jobs:
- template: /azure-pipelines/templates/build-job.yml
- stage: Test_Go_Darwin
condition: succeeded()
dependsOn: Build_Go_Darwin
variables:
VmImage: macOS-latest
Platform: darwin
Architecture: x64
jobs:
- template: /azure-pipelines/templates/test-job.yml
- stage: Build_Go_Linux
dependsOn: []
variables:
Platform: linux
Architecture: x64
jobs:
- template: /azure-pipelines/templates/build-job.yml
- stage: Test_Go_Linux
condition: succeeded()
dependsOn: Build_Go_Linux
variables:
VmImage: ubuntu-latest
Platform: linux
Architecture: x64
jobs:
- template: /azure-pipelines/templates/test-job.yml
- stage: Build_Go_Windows
dependsOn: []
variables:
Platform: win32
Architecture: x64
jobs:
- template: /azure-pipelines/templates/build-job.yml
- stage: Test_Go_Windows
condition: succeeded()
dependsOn: Build_Go_Windows
variables:
VmImage: windows-latest
Platform: win32
Architecture: x64
jobs:
- template: /azure-pipelines/templates/test-job.yml

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jobs:
- job: Build_Go
timeoutInMinutes: 90
pool:
name: Azure Pipelines
vmImage: ubuntu-latest
steps:
- checkout: self
- task: PowerShell@2
displayName: 'Build Go $(Version)'
inputs:
targetType: filePath
filePath: './builders/build-go.ps1'
arguments: '-Version $(Version) -Platform $(Platform) -Architecture $(Architecture)'
- task: PublishPipelineArtifact@1
displayName: 'Publish Artifact: Go $(Version)'
inputs:
targetPath: '$(Build.ArtifactStagingDirectory)'
artifactName: 'go-$(Version)-$(Platform)-$(Architecture)'

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jobs:
- job: Test_Go
pool:
name: Azure Pipelines
vmImage: $(VmImage)
steps:
- checkout: self
submodules: true
- task: PowerShell@2
displayName: Fully cleanup the toolcache directory before testing
inputs:
targetType: filePath
filePath: helpers/clean-toolcache.ps1
arguments: -ToolName "go"
- task: DownloadPipelineArtifact@2
inputs:
source: 'current'
artifact: 'go-$(Version)-$(Platform)-$(Architecture)'
path: $(Build.ArtifactStagingDirectory)
- task: ExtractFiles@1
inputs:
archiveFilePatterns: '$(Build.ArtifactStagingDirectory)/go-$(Version)-$(Platform)-$(Architecture).*'
destinationFolder: $(Build.BinariesDirectory)
cleanDestinationFolder: false
- task: PowerShell@2
displayName: 'Apply build artifact to the local machines'
inputs:
targetType: inline
script: |
if ("$(Platform)" -match 'win32') { powershell ./setup.ps1 } else { sh ./setup.sh }
workingDirectory: '$(Build.BinariesDirectory)'
- task: GoTool@0
inputs:
version: '$(Version)'
- task: PowerShell@2
displayName: 'Wait for the logs'
inputs:
targetType: inline
script: |
Write-Host "Fake step that do nothing"
Write-Host "We need it because log of previous step 'Use Go' is not available here yet."
Write-Host "In testing step (Go.Tests.ps1) we analyze build log of 'GoTool' task"
Write-Host "to determine if Go version was consumed from cache and was downloaded"
- task: PowerShell@2
displayName: 'Run tests'
inputs:
TargetType: inline
script: |
Install-Module Pester -Force -Scope CurrentUser -RequiredVersion 4.10.1
Import-Module Pester
$pesterParams = @{
Path="./Go.Tests.ps1";
Parameters=@{
Version="$(Version)";
}
}
Invoke-Pester -Script $pesterParams -OutputFile "$(Build.SourcesDirectory)/tests/test_results.xml" -OutputFormat NUnitXml
workingDirectory: '$(Build.SourcesDirectory)/tests'
- task: PublishTestResults@2
displayName: 'Publish test results'
inputs:
testResultsFiles: '*.xml'
testResultsFormat: NUnit
searchFolder: 'tests'
failTaskOnFailedTests: true
testRunTitle: "Go $(Version)-$(Platform)"
condition: always()

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using module "./builders/win-go-builder.psm1"
using module "./builders/nix-go-builder.psm1"
<#
.SYNOPSIS
Generate Go artifact.
.DESCRIPTION
Main script that creates instance of GoBuilder and builds of Go using specified parameters.
.PARAMETER Version
Required parameter. The version with which Go will be built.
.PARAMETER Architecture
Optional parameter. The architecture with which Go will be built. Using x64 by default.
.PARAMETER Platform
Required parameter. The platform for which Go will be built.
#>
param(
[Parameter (Mandatory=$true)][version] $Version,
[Parameter (Mandatory=$true)][string] $Platform,
[string] $Architecture = "x64"
)
Import-Module (Join-Path $PSScriptRoot "../helpers" | Join-Path -ChildPath "nix-helpers.psm1") -DisableNameChecking
Import-Module (Join-Path $PSScriptRoot "../helpers" | Join-Path -ChildPath "win-helpers.psm1") -DisableNameChecking
function Get-GoBuilder {
<#
.SYNOPSIS
Wrapper for class constructor to simplify importing GoBuilder.
.DESCRIPTION
Create instance of GoBuilder with specified parameters.
.PARAMETER Version
The version with which Go will be built.
.PARAMETER Platform
The platform for which Go will be built.
.PARAMETER Architecture
The architecture with which Go will be built.
#>
param (
[version] $Version,
[string] $Architecture,
[string] $Platform
)
$Platform = $Platform.ToLower()
if ($Platform -match 'win32') {
$builder = [WinGoBuilder]::New($Version, $Platform, $Architecture)
} elseif (($Platform -match 'linux') -or ($Platform -match 'darwin')) {
$builder = [NixGoBuilder]::New($Version, $Platform, $Architecture)
} else {
Write-Host "##vso[task.logissue type=error;] Invalid platform: $Platform"
exit 1
}
return $builder
}
### Create Go builder instance, and build artifact
$Builder = Get-GoBuilder -Version $Version -Platform $Platform -Architecture $Architecture
$Builder.Build()

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class GoBuilder {
<#
.SYNOPSIS
Base Go builder class.
.DESCRIPTION
Base Go builder class that contains general builder methods.
.PARAMETER Version
The version of Go that should be built.
.PARAMETER Platform
The platform of Go that should be built.
.PARAMETER Architecture
The architecture with which Go should be built.
.PARAMETER TempFolderLocation
The location of temporary files that will be used during Go package generation. Using system BUILD_STAGINGDIRECTORY variable value.
.PARAMETER ArtifactLocation
The location of generated Go artifact. Using system environment BUILD_BINARIESDIRECTORY variable value.
.PARAMETER InstallationTemplatesLocation
The location of installation script template. Using "installers" folder from current repository.
#>
[version] $Version
[string] $Platform
[string] $Architecture
[string] $TempFolderLocation
[string] $WorkFolderLocation
[string] $ArtifactFolderLocation
[string] $InstallationTemplatesLocation
GoBuilder ([version] $version, [string] $platform, [string] $architecture) {
$this.Version = $version
$this.Platform = $platform
$this.Architecture = $architecture
$this.TempFolderLocation = [IO.Path]::GetTempPath()
$this.WorkFolderLocation = $env:BUILD_BINARIESDIRECTORY
$this.ArtifactFolderLocation = $env:BUILD_STAGINGDIRECTORY
$this.InstallationTemplatesLocation = Join-Path -Path $PSScriptRoot -ChildPath "../installers"
}
[uri] GetBinariesUri() {
<#
.SYNOPSIS
Get base Go URI and return complete URI for Go installation executable.
#>
$arch = ($this.Architecture -eq "x64") ? "amd64" : $this.Architecture
$goPlatform = ($this.Platform -Match "win32") ? "windows" : $this.Platform
$ArchiveType = ($this.Platform -Match "win32") ? "zip" : "tar.gz"
If ($this.Version.Build -eq "0") {
$goVersion = "go$($this.Version.ToString(2))"
} else {
$goVersion = "go$($this.Version.ToString(3))"
}
$filename = "$goVersion.$goPlatform-$arch.$ArchiveType"
return "https://storage.googleapis.com/golang/$filename"
}
[string] Download() {
<#
.SYNOPSIS
Download Go binaries into artifact location.
#>
$binariesUri = $this.GetBinariesUri()
$targetFilename = [IO.Path]::GetFileName($binariesUri)
$targetFilepath = Join-Path -Path $this.TempFolderLocation -ChildPath $targetFilename
Write-Debug "Download binaries from $binariesUri to $targetFilepath"
try {
(New-Object System.Net.WebClient).DownloadFile($binariesUri, $targetFilepath)
} catch {
Write-Host "Error during downloading file from '$binariesUri'"
exit 1
}
Write-Debug "Done; Binaries location: $targetFilepath"
return $targetFilepath
}
[void] Build() {
<#
.SYNOPSIS
Generates Go artifact from downloaded binaries.
#>
Write-Host "Download Go $($this.Version) [$($this.Architecture)] executable..."
$binariesArchivePath = $this.Download()
Write-Host "Unpack binaries to target directory"
$this.ExtractBinaries($binariesArchivePath)
Write-Host "Create installation script..."
$this.CreateInstallationScript()
Write-Host "Archive artifact"
$this.ArchiveArtifact()
}
}

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using module "./builders/go-builder.psm1"
class NixGoBuilder : GoBuilder {
<#
.SYNOPSIS
Ubuntu Go builder class.
.DESCRIPTION
Contains methods that required to build Ubuntu Go artifact from sources. Inherited from base NixGoBuilder.
.PARAMETER platform
The full name of platform for which Go should be built.
.PARAMETER version
The version of Go that should be built.
#>
[string] $InstallationTemplateName
[string] $InstallationScriptName
[string] $OutputArtifactName
NixGoBuilder(
[version] $version,
[string] $platform,
[string] $architecture
) : Base($version, $platform, $architecture) {
$this.InstallationTemplateName = "nix-setup-template.sh"
$this.InstallationScriptName = "setup.sh"
$this.OutputArtifactName = "go-$Version-$Platform-$Architecture.tar.gz"
}
[void] ExtractBinaries($archivePath) {
Extract-TarArchive -ArchivePath $archivePath -OutputDirectory $this.WorkFolderLocation
}
[void] CreateInstallationScript() {
<#
.SYNOPSIS
Create Go artifact installation script based on template specified in InstallationTemplateName property.
#>
$installationScriptLocation = New-Item -Path $this.WorkFolderLocation -Name $this.InstallationScriptName -ItemType File
$installationTemplateLocation = Join-Path -Path $this.InstallationTemplatesLocation -ChildPath $this.InstallationTemplateName
$installationTemplateContent = Get-Content -Path $installationTemplateLocation -Raw
$installationTemplateContent = $installationTemplateContent -f $this.Version.ToString(3)
$installationTemplateContent | Out-File -FilePath $installationScriptLocation
Write-Debug "Done; Installation script location: $installationScriptLocation)"
}
[void] ArchiveArtifact() {
$OutputPath = Join-Path $this.ArtifactFolderLocation $this.OutputArtifactName
Create-TarArchive -SourceFolder $this.WorkFolderLocation -ArchivePath $OutputPath
}
}

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using module "./builders/go-builder.psm1"
class WinGoBuilder : GoBuilder {
<#
.SYNOPSIS
Ubuntu Go builder class.
.DESCRIPTION
Contains methods that required to build Ubuntu Go artifact from sources. Inherited from base NixGoBuilder.
.PARAMETER platform
The full name of platform for which Go should be built.
.PARAMETER version
The version of Go that should be built.
#>
[string] $InstallationTemplateName
[string] $InstallationScriptName
[string] $OutputArtifactName
WinGoBuilder(
[version] $version,
[string] $platform,
[string] $architecture
) : Base($version, $platform, $architecture) {
$this.InstallationTemplateName = "win-setup-template.ps1"
$this.InstallationScriptName = "setup.ps1"
$this.OutputArtifactName = "go-$Version-$Platform-$Architecture.zip"
}
[void] ExtractBinaries($archivePath) {
$extractTargetDirectory = Join-Path $this.TempFolderLocation "tempExtract"
Extract-SevenZipArchive -ArchivePath $archivePath -OutputDirectory $extractTargetDirectory
$goOutputPath = Get-Item $extractTargetDirectory\* | Select-Object -First 1 -ExpandProperty Fullname
Move-Item -Path $goOutputPath\* -Destination $this.WorkFolderLocation
}
[void] CreateInstallationScript() {
<#
.SYNOPSIS
Create Go artifact installation script based on specified template.
#>
$installationScriptLocation = New-Item -Path $this.WorkFolderLocation -Name $this.InstallationScriptName -ItemType File
$installationTemplateLocation = Join-Path -Path $this.InstallationTemplatesLocation -ChildPath $this.InstallationTemplateName
$installationTemplateContent = Get-Content -Path $installationTemplateLocation -Raw
$variablesToReplace = @{
"{{__VERSION__}}" = $this.Version;
"{{__ARCHITECTURE__}}" = $this.Architecture;
}
$variablesToReplace.keys | ForEach-Object { $installationTemplateContent = $installationTemplateContent.Replace($_, $variablesToReplace[$_]) }
$installationTemplateContent | Out-File -FilePath $installationScriptLocation
Write-Debug "Done; Installation script location: $installationScriptLocation)"
}
[void] ArchiveArtifact() {
$OutputPath = Join-Path $this.ArtifactFolderLocation $this.OutputArtifactName
Create-SevenZipArchive -SourceFolder $this.WorkFolderLocation -ArchivePath $OutputPath -ArchiveType "zip"
}
}

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{
"regex": "go-\\d+\\.\\d+\\.\\d+-(\\w+)-(x\\d+)",
"groups": {
"arch": 2,
"platform": 1
}
}

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set -e
GO_VERSION={0}
GO_TOOLCACHE_PATH=$AGENT_TOOLSDIRECTORY/go
GO_TOOLCACHE_VERSION_PATH=$GO_TOOLCACHE_PATH/$GO_VERSION
GO_TOOLCACHE_VERSION_ARCH_PATH=$GO_TOOLCACHE_VERSION_PATH/x64
echo "Check if Go hostedtoolcache folder exist..."
if [ ! -d $GO_TOOLCACHE_PATH ]; then
mkdir -p $GO_TOOLCACHE_PATH
fi
echo "Delete Go $GO_VERSION if installed"
rm -rf $GO_TOOLCACHE_VERSION_PATH
echo "Create Go $GO_VERSION folder"
mkdir -p $GO_TOOLCACHE_VERSION_ARCH_PATH
echo "Copy Go binaries to hostedtoolcache folder"
cp -R ./* $GO_TOOLCACHE_VERSION_ARCH_PATH
rm $GO_TOOLCACHE_VERSION_ARCH_PATH/setup.sh
echo "Create complete file"
touch $GO_TOOLCACHE_VERSION_PATH/x64.complete

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$ErrorActionPreference = "Stop"
[version]$Version = "{{__VERSION__}}"
[string]$Architecture = "{{__ARCHITECTURE__}}"
$ToolcacheRoot = $env:AGENT_TOOLSDIRECTORY
if ([string]::IsNullOrEmpty($ToolcacheRoot)) {
# GitHub images don't have `AGENT_TOOLSDIRECTORY` variable
$ToolcacheRoot = $env:RUNNER_TOOL_CACHE
}
$GoToolcachePath = Join-Path -Path $ToolcacheRoot -ChildPath "go"
$GoToolcacheVersionPath = Join-Path -Path $GoToolcachePath -ChildPath $Version.ToString()
$GoToolcacheArchitecturePath = Join-Path $GoToolcacheVersionPath $Architecture
Write-Host "Check if Go hostedtoolcache folder exist..."
if (-not (Test-Path $GoToolcachePath)) {
New-Item -ItemType Directory -Path $GoToolcachePath | Out-Null
}
Write-Host "Delete Go $Version if installed"
if (Test-Path $GoToolcacheVersionPath) {
Remove-Item $GoToolcachePath -Recurse -Force | Out-Null
}
Write-Host "Create Go $Version folder"
if (-not (Test-Path $GoToolcacheArchitecturePath)) {
New-Item -ItemType Directory -Path $GoToolcacheArchitecturePath | Out-Null
}
Write-Host "Copy Go binaries to hostedtoolcache folder"
Copy-Item -Path * -Destination $GoToolcacheArchitecturePath -Recurse
Remove-Item $GoToolcacheArchitecturePath\setup.ps1 -Force | Out-Null
Write-Host "Create complete file"
New-Item -ItemType File -Path $GoToolcacheVersionPath -Name "$Architecture.complete" | Out-Null

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param (
[version] [Parameter (Mandatory = $true)] [ValidateNotNullOrEmpty()]
$Version
)
Import-Module (Join-Path $PSScriptRoot "../helpers/pester-extensions.psm1")
Import-Module (Join-Path $PSScriptRoot "../helpers/common-helpers.psm1")
function Get-UseGoLogs {
$logsFolderPath = Join-Path -Path $env:AGENT_HOMEDIRECTORY -ChildPath "_diag" | Join-Path -ChildPath "pages"
$useGoLogFile = Get-ChildItem -Path $logsFolderPath | Where-Object {
$logContent = Get-Content $_.Fullname -Raw
return $logContent -match "GoTool"
} | Select-Object -First 1
return $useGoLogFile.Fullname
}
Describe "Go" {
It "is available" {
"go version" | Should -ReturnZeroExitCode
}
It "version is correct" {
$versionOutput = Invoke-Expression -Command "go version"
$finalVersion = $Version.ToString(3)
If ($Version.Build -eq "0"){
$finalVersion = $Version.ToString(2)
}
$versionOutput | Should -Match $finalVersion
}
It "is used from tool-cache" {
$goPath = (Get-Command "go").Path
$goPath | Should -Not -BeNullOrEmpty
$expectedPath = Join-Path -Path $env:AGENT_TOOLSDIRECTORY -ChildPath "go"
$goPath.startsWith($expectedPath) | Should -BeTrue -Because "'$goPath' is not started with '$expectedPath'"
}
It "cached version is used without downloading" {
# Analyze output of previous steps to check if Go was consumed from cache or downloaded
$useGoLogFile = Get-UseGoLogs
$useGoLogFile | Should -Exist
$useGoLogContent = Get-Content $useGoLogFile -Raw
$useGoLogContent | Should -Match "Found tool in cache"
}
Set-Location -Path "source"
$sourceLocation = Get-Location
It "Run simple code" {
$simpleLocation = Join-Path -Path $sourceLocation -ChildPath "simple"
Set-Location -Path $simpleLocation
"go run simple.go" | Should -ReturnZeroExitCode
"go build simple.go" | Should -ReturnZeroExitCode
"./simple" | Should -ReturnZeroExitCode
}
It "Run maps code" {
$mapsLocation = Join-Path -Path $sourceLocation -ChildPath "maps"
Set-Location -Path $mapsLocation
"go run maps.go" | Should -ReturnZeroExitCode
"go build maps.go" | Should -ReturnZeroExitCode
"./maps" | Should -ReturnZeroExitCode
}
It "Run methods code" {
$methodsLocation = Join-Path -Path $sourceLocation -ChildPath "methods"
Set-Location -Path $methodsLocation
"go run methods.go" | Should -ReturnZeroExitCode
"go build methods.go" | Should -ReturnZeroExitCode
"./methods" | Should -ReturnZeroExitCode
}
}

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package main
import "fmt"
func main() {
m := make(map[string]int)
m["k1"] = 7
m["k2"] = 13
fmt.Println("map:", m)
v1 := m["k1"]
fmt.Println("v1: ", v1)
fmt.Println("len:", len(m))
delete(m, "k2")
fmt.Println("map:", m)
_, prs := m["k2"]
fmt.Println("prs:", prs)
n := map[string]int{"foo": 1, "bar": 2}
fmt.Println("map:", n)
}

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package main
import "fmt"
type rect struct {
width, height int
}
func (r *rect) area() int {
return r.width * r.height
}
func (r rect) perim() int {
return 2*r.width + 2*r.height
}
func main() {
r := rect{width: 10, height: 5}
fmt.Println("area: ", r.area())
fmt.Println("perim:", r.perim())
rp := &r
fmt.Println("area: ", rp.area())
fmt.Println("perim:", rp.perim())
}

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package main
import "fmt"
func main() {
fmt.Println("Hello, world.")
}