I do not know why GO does not have a build in tool for upgrade like Flutter and Rust,
I wrote the below Powershell script goinstaller.ps1 file to help me install and upgrade GO lang at Win10, regardless fresh install, or upgrade:
I want to share here, if you have something wrong in it, appreciate your feedback.
Write-Output " Welcome to GO lang portable installation script"
Write-Output " Written by: Hasan A Yousef, Aug 2020"
Write-Output " =============================================="
Write-Output " GO lang SDK will be installed at C:\go\bin"
Write-Output " GO lang (GOPATH) will be set as 'Documents\GoWorkPlace'"
Write-Output ""
#Here is the installation function, at the bottom of the file are the check for update process
function InstallGo {
param (
$latest_version,
$workDir
)
# The download location of the latest version zip file
$file = 'go' + $latest_version + '.windows-amd64.zip'
# set defaults
$path = 'C:\go'
$url = 'https://golang.org/dl/' + $file
$dest = [io.path]::combine($Home, 'Downloads', $file)
If(test-path $path)
{
$pathAll = $path + "*"
Write-Output " Removing the currently installed Go from $path"
Remove-Item $pathAll -recurse
} else {
# New-Item -ItemType Directory -Force -Path $path
Write-Output " Creating the directory required for GO installation: $path"
mkdir $path
}
# Download the zip file at the defined destination
Write-Output " Downloading $url"
#Invoke-WebRequest $url -OutFile $dest
Write-Output " $url downloaded as $dest"
# Unzip the file
Write-Output " Extracting $file to $path"
Expand-Archive -Force -Path $dest -DestinationPath $path\..
Write-Output " Extraction completed, Adding GO SDK to path"
# Add GO to the Path (if not exisiting)
$addPath = 'C:\go\bin'
# Iterate through all the existing paths to check if the new path is already included with or without a '\' on the end:
$env = [Environment]::GetEnvironmentVariable("PATH",1)
$regexAddPath = [regex]::Escape($addPath)
$arrPath = $env -split ';' | Where-Object {$_ -notMatch "^$regexAddPath\\?"}
$env = ($arrPath + $addPath) -join ';'
[Environment]::SetEnvironmentVariable("PATH", $env, "USER")
Write-Output " $addPath had been added to path."
Write-Output " GO SDK is ready in the path, setting up Environment Variables"
#Setting up variables
# set the $GOROOT (Aka $GOBIN), GOROOT is a variable that defines where your Go SDK is located
$goroot = Join-Path $path "bin"
[Environment]::SetEnvironmentVariable( "GOROOT", $goroot, [System.EnvironmentVariableTarget]::User)
# set the $GOPATH; GOPATH is a variable that defines the root of your workspace
$gopath = Join-Path $Home $workDir
[Environment]::SetEnvironmentVariable( "GOPATH", $gopath, [System.EnvironmentVariableTarget]::User)
# Setup the Go workspace; if it doesn't exist.
If (!(Test-Path $workDir)) {
New-Item -path $workDir -type directory
Write-Output " Go work space had been created: $gopath"
} else {
Write-Output " Go work space already exist: $gopath"
}
Write-Output " =============================================="
Write-Output " GO is ready, Below you'll see list of GO command"
go
}
############################################################################
# Here is the check process, based on which the above function may be called.
$workDir = 'Documents\GoWorkPlace'
# Get latest Go lang version
# Parse the remote repository with ls-remote, and get release branches
# The regex matches refs/heads/release-branch.go, so rc and beta won't be mached
$release_branches=$(git ls-remote --heads https://github.com/golang/go/ |
ConvertFrom-String | Where-Object {$_."P2" -Match 'refs/heads/release-branch.go'})
# Define utility for nat sort (see http://stackoverflow.com/a/5429048/2796058)
$ToNatural = { [regex]::Replace($_, '\d+', { $args[0].Value.PadLeft(20) }) }
# Extract actual tag versions, sort and get latest
$latest_version=$($release_branches.P2 | Select-String -Pattern '(\d+\.\d+)').Matches.Groups.Value |
Sort-Object $ToNatural | Select-Object -Last 1
Write-Output " Latest GO lang version is: $latest_version"
# Check installed version of GO lang
$cmdName = 'go'
Try{
Get-Command $cmdName -ErrorAction stop
$goversioncheck = go version
$goversion = [regex]::Match($goversioncheck, '((\d+\.\d+))').captures.groups[1].value
if ($goversion -eq $latest_version) {
Write-Output " You already have latest GO lang version installed, version: $goversion"
} else {
Write-Host " Upgrade Install of GO lang will start now"
InstallGo -latest_version $latest_version -workDir $workDir
}
} Catch{
Write-Host " Fresh Install of GO lang will start now"
InstallGo -latest_version $latest_version -workDir $workDir
}
Above to using portable/zip file, as it does not required admin privileges, if you prefer working with the msi file, then you need to replace the file name from .windows-amd64.zip to .windows-amd64.msi and replace file extraction command Expand-Archive -Force -Path $dest -DestinationPath $path\.. by file execution command Start-Process $dest