Update Node.js and Golang for Windows

download-golang.go

// 本来是下到临时文件夹中自动安装的，但exec.Command("xxx.msi")报"%1 is not a valid Win32 application."，用msiexec报错误1619，用cmd /c报0xc000013a。因此干脆就只做下载器了
package main

import (
	"flag"
	"fmt"
	"io"
	"log"
	"net/http"
	"os"
	"regexp"
	"runtime"
)

var stable_ver_regex = regexp.MustCompile(`"toggleVisible" id="go(.+?)">`)
var unstable_ver_regex = regexp.MustCompile(`"toggle" id="go(.+?)">`)

func download(url string) []byte {
	res, err := http.Get(url)
	if err != nil {
		log.Fatal(err)
	}
	if res.StatusCode >= 400 {
		log.Fatal("Response failed with status code:", res.StatusCode)
	}
	body, err := io.ReadAll(res.Body)
	res.Body.Close()
	return body
}

func main() {
	if runtime.GOOS != "windows" {
		log.Fatal("Only Windows is supported.")
	}

	unstable_flag := flag.Bool("unstable", false, "use unstable version.")
	flag.Parse()
	unstable_wanted := false
	if unstable_flag != nil {
		unstable_wanted = *unstable_flag
	}

	// get required version and link
	fmt.Println("Getting version info...")
	body := download("https://golang.google.cn/dl/")
	bodystr := string(body)

	var wanted_ver string
	stable_ver := stable_ver_regex.FindStringSubmatch(bodystr)[1]
	unstable_ver := unstable_ver_regex.FindStringSubmatch(bodystr)[1]
	if !unstable_wanted {
		wanted_ver = stable_ver
	} else {
		wanted_ver = unstable_ver
	}
	fmt.Println("Wanted:", wanted_ver)

	filename := fmt.Sprintf("go%s.windows-amd64.msi", wanted_ver)
	msiurl := "https://dl.google.com/go/" + filename

	// download
	msifile, err := os.Create(filename)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println("Downloading from", msiurl)
	msibytes := download(msiurl)
	_, err2 := msifile.Write(msibytes)
	if err2 != nil {
		log.Fatal(err2)
	}
	msifile.Close()
}

Update-Golang.psm1

function Get-GolangVer {
    $ProgressPreference = 'SilentlyContinue'
    $info = iwr 'https://golang.google.cn/dl/'
    if (-not $?) { return }
    $info -match '"toggleVisible" id="go(.+?)">' | Out-Null
    $ver = $Matches[1]
    $ProgressPreference = 'Continue'
    return $ver
}

function Get-GolangVerCurrent {
    try {
        (go version) -match 'go version go(.+?) windows/amd64' | Out-Null
        return $Matches[1]
    } catch [Management.Automation.CommandNotFoundException] {
        return ''
    }
}

function Update-Golang {
    if(-not [Runtime.InteropServices.RuntimeInformation]::IsOSPlatform([Runtime.InteropServices.OSPlatform]::Windows))
    { echo 'This script only supports Windows.'; return }

    echo 'Retriving latest version info...'
    $current_ver = Get-GolangVerCurrent
    $latest_ver  = Get-GolangVer
    if ($latest_ver -eq $null) { return }
    $filename = "go$latest_ver.windows-amd64.msi"
    echo "Current version: $current_ver"
    echo "Latest  version: $latest_ver"

    if ($current_ver -eq $latest_ver) {
        echo 'You are using the latest version.'
        return
    } else {
        $info = iwr ('https://dl.google.com/go/' + $filename) -Method HEAD
        if (-not $?) { return }
        echo ('Installer  size: ' + ([int]::parse($info.Headers.'Content-Length') / 1MB).ToString("F1") + ' MB')

        echo "Downloading..."
        pushd $env:TEMP
        iwr ('https://dl.google.com/go/' + $filename) -OutFile $filename
        if (-not $?) { return }

        echo "Installing..."
        & "./$filename" '/passive'
        popd
    }
}

Update-Node.psm1

# $script:baseurl = 'https://nodejs.org/dist/latest/'
$script:baseurl = 'https://cdn.npmmirror.com/binaries/node/latest/'

function Get-NodeVer {
    $ProgressPreference = 'SilentlyContinue'
    $shasumdata = iwr ($script:baseurl + 'SHASUMS256.txt')
    if (-not $?) { return }
    $shasumdata -match 'node-(.+?)-x64.msi' | Out-Null
    $ver = $Matches[1]
    $ProgressPreference = 'Continue'
    return $ver
}

function Get-NodeVerCurrent {
    try {
        return (node -v)
    } catch [Management.Automation.CommandNotFoundException] {
        return ''
    }
}

function Update-Node {
    if(-not [Runtime.InteropServices.RuntimeInformation]::IsOSPlatform([Runtime.InteropServices.OSPlatform]::Windows))
    { echo 'This script only supports Windows.'; return }

    echo 'Retriving latest version info...'
    $current_ver = Get-NodeVerCurrent
    $latest_ver  = Get-NodeVer
    if ($latest_ver -eq $null) { return }
    if ([Environment]::Is64BitOperatingSystem) { $sysbits = 'x64' } else { $sysbits = 'x86' }
    $filename = "node-$latest_ver-$sysbits.msi"
    echo "Current version: $current_ver"
    echo "Latest  version: $latest_ver"

    if ($current_ver -eq $latest_ver) {
        echo 'You are using the latest version.'
        return
    } else {
        $info = iwr ($script:baseurl + $filename) -Method HEAD
        if (-not $?) { return }
        echo ('Installer  size: ' + ([int]::parse($info.Headers.'Content-Length') / 1MB).ToString("F1") + ' MB')

        echo "Downloading..."
        pushd $env:TEMP
        iwr ($script:baseurl + $filename) -OutFile $filename
        if (-not $?) { return }

        echo "Installing..."
        & "./$filename" '/passive'
        popd
    }
}