replace go script with PowerShell script for downloading MSYS2 archive

.github/workflows/build-windows.yml

@@ -44,38 +44,11 @@ jobs:
           release: false
           update: false
 
-      # FIXME: use ./util/get-msys2-archive.go to download the archive db
-      # for now, since we install go from pacman, we better do it this way
       - name: Use msys2 archive
         shell: pwsh
         run: |
-          # Base URL for the 2025-06-22 MSYS2 archive release
+          $date = "2025-06-22"
-          $baseUrl = "https://github.com/msys2/msys2-archive/releases/download/2025-06-22"
+          & "scripts/get-msys2-archive.ps1" -Date $date
-
-          $databases = @(
-              "clang64",
-              "clangarm64",
-              "mingw32",
-              "mingw64",
-              "msys",
-              "ucrt64"
-          )
-
-          $targetDir = "C:\msys64\var\lib\pacman\sync"
-
-          foreach ($db in $databases) {
-              $dbUrl = "$baseUrl/$db.db"
-              $sigUrl = "$baseUrl/$db.db.sig"
-
-              $dbFile = Join-Path $targetDir "$db.db"
-              $sigFile = Join-Path $targetDir "$db.db.sig"
-
-              Write-Host "Downloading $db.db ..."
-              Invoke-WebRequest -Uri $dbUrl -OutFile $dbFile
-
-              Write-Host "Downloading $db.db.sig ..."
-              Invoke-WebRequest -Uri $sigUrl -OutFile $sigFile
-          }
 
       - name: Install deps using pacman
         run: |

util/get-msys2-archive.go

@@ -1,108 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"io"
-	"net/http"
-	"os"
-	"path/filepath"
-	"sync"
-	"time"
-)
-
-const (
-	maxRetries = 3
-	retryDelay = 2 * time.Second
-	baseUrl    = "https://github.com/msys2/msys2-archive/releases/download"
-	targetDir  = "C:\\msys64\\var\\lib\\pacman\\sync"
-)
-
-var databases = []string{
-	"clang64",
-	"clangarm64",
-	"mingw32",
-	"mingw64",
-	"msys",
-	"ucrt64",
-}
-
-func downloadFile(url string, filepath string) error {
-	var err error
-	for i := 0; i < maxRetries; i++ {
-		if i > 0 {
-			fmt.Printf("Retrying download for %s in %v...\n", url, retryDelay)
-			time.Sleep(retryDelay)
-		}
-
-		err = attemptDownload(url, filepath)
-		if err == nil {
-			return nil
-		}
-		fmt.Printf("Attempt %d failed for %s: %v\n", i+1, url, err)
-	}
-	return fmt.Errorf("failed to download %s after %d attempts: %w", url, maxRetries, err)
-}
-
-func attemptDownload(url string, filepath string) error {
-	resp, err := http.Get(url)
-	if err != nil {
-		return err
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		return fmt.Errorf("bad status: %s", resp.Status)
-	}
-
-	out, err := os.Create(filepath)
-	if err != nil {
-		return err
-	}
-	defer out.Close()
-
-	_, err = io.Copy(out, resp.Body)
-	return err
-}
-
-func main() {
-	if len(os.Args) < 2 {
-		fmt.Printf("Usage: %s <archive_date>\n", os.Args[0])
-		os.Exit(1)
-	}
-
-	archiveDate := os.Args[1]
-	archiveBaseUrl := baseUrl + "/" + archiveDate
-
-	if _, err := os.Stat(targetDir); os.IsNotExist(err) {
-		fmt.Printf("Target directory %s does not exist. Exiting.\n", targetDir)
-		os.Exit(1)
-	}
-
-	var wg sync.WaitGroup
-
-	for _, db := range databases {
-		filesToDownload := []string{
-			fmt.Sprintf("%s.db", db),
-			fmt.Sprintf("%s.db.sig", db),
-		}
-
-		for _, file := range filesToDownload {
-			wg.Add(1)
-			go func(fileName string) {
-				defer wg.Done()
-				fileUrl := fmt.Sprintf("%s/%s", archiveBaseUrl, fileName)
-				filePath := filepath.Join(targetDir, fileName)
-
-				fmt.Printf("Downloading %s...\n", fileUrl)
-				if err := downloadFile(fileUrl, filePath); err != nil {
-					fmt.Printf("Failed to download %s: %v\n", fileUrl, err)
-				} else {
-					fmt.Printf("Successfully downloaded %s\n", filePath)
-				}
-			}(file)
-		}
-	}
-
-	wg.Wait()
-	fmt.Println("All downloads completed.")
-}

util/get-msys2-archive.ps1

@@ -0,0 +1,41 @@
+param(
+    [Parameter(Mandatory = $true)]
+    [string]$Date
+)
+
+$ErrorActionPreference = "Stop"
+
+if (-not $Date) {
+    Write-Error "MSYS2 archive date is required. Usage: get-msys2-archive.ps1 -Date <YYYY-MM-DD>"
+    exit 1
+}
+
+Write-Host "Using MSYS2 archive release date: $Date"
+
+# Base URL for the MSYS2 archive release
+$baseUrl = "https://github.com/msys2/msys2-archive/releases/download/$Date"
+
+$databases = @(
+    "clang64",
+    "clangarm64",
+    "mingw32",
+    "mingw64",
+    "msys",
+    "ucrt64"
+)
+
+$targetDir = "C:\msys64\var\lib\pacman\sync"
+
+foreach ($db in $databases) {
+    $dbUrl = "$baseUrl/$db.db"
+    $sigUrl = "$baseUrl/$db.db.sig"
+
+    $dbFile = Join-Path $targetDir "$db.db"
+    $sigFile = Join-Path $targetDir "$db.db.sig"
+
+    Write-Host "Downloading $db.db ..."
+    Invoke-WebRequest -Uri $dbUrl -OutFile $dbFile
+
+    Write-Host "Downloading $db.db.sig ..."
+    Invoke-WebRequest -Uri $sigUrl -OutFile $sigFile
+}