go-versions/builders/go-builder.psm1

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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()
}
}