replace msys2 with mingw

cmd/internal/install/deps.go

@@ -14,7 +14,7 @@ func Dependencies(projectPath string, goVersion, tinyPkgConfigVersion, pyVersion
 	}
 	// Only install MSYS2 on Windows
 	if runtime.GOOS == "windows" {
-		if err := installMsys2(projectPath, verbose); err != nil {
+		if err := installMingw(projectPath, verbose); err != nil {
 			return err
 		}
 	}

cmd/internal/install/env.go

@@ -13,9 +13,9 @@ const (
 	PythonDir = "python"
 	// GoDir is the directory name for Go installation
 	GoDir = "go"
-	// Msys2Dir is the directory name for MSYS2 installation
-	Msys2Dir  = "msys2"
-	Msys2Root = Msys2Dir + "/msys64"
+	// MingwDir is the directory name for Mingw installation
+	MingwDir  = "mingw"
+	MingwRoot = MingwDir + "/mingw64"
 
 	TinyPkgConfigDir = "tiny-pkg-config"
 )
@@ -60,12 +60,12 @@ func GetGoCacheDir(projectPath string) string {
 	return filepath.Join(GetGoRoot(projectPath), "go-build")
 }
 
-func GetMsys2Dir(projectPath string) string {
-	return filepath.Join(projectPath, DepsDir, Msys2Dir)
+func GetMingwDir(projectPath string) string {
+	return filepath.Join(projectPath, DepsDir, MingwDir)
 }
 
-func GetMsys2Root(projectPath string) string {
-	return filepath.Join(projectPath, DepsDir, Msys2Root)
+func GetMingwRoot(projectPath string) string {
+	return filepath.Join(projectPath, DepsDir, MingwRoot)
 }
 
 func GetTinyPkgConfigDir(projectPath string) string {
@@ -80,7 +80,7 @@ func SetEnv(projectPath string) {
 	path := os.Getenv("PATH")
 	path = GetGoBinDir(absPath) + pathSeparator() + path
 	if runtime.GOOS == "windows" {
-		path = GetMsys2Root(absPath) + pathSeparator() + path
+		path = GetMingwRoot(absPath) + pathSeparator() + path
 		path = GetTinyPkgConfigDir(absPath) + pathSeparator() + path
 	}
 	os.Setenv("PATH", path)

cmd/internal/install/mingw.go

@@ -0,0 +1,16 @@
+package install
+
+import (
+	"fmt"
+)
+
+const (
+	mingwVersion = "14.2.0"
+	mingwURL     = "https://github.com/brechtsanders/winlibs_mingw/releases/download/14.2.0posix-19.1.1-12.0.0-ucrt-r2/winlibs-x86_64-posix-seh-gcc-14.2.0-llvm-19.1.1-mingw-w64ucrt-12.0.0-r2.zip"
+)
+
+func installMingw(projectPath string, verbose bool) error {
+	root := GetMingwDir(projectPath)
+	fmt.Printf("Installing mingw in %v\n", root)
+	return downloadAndExtract("mingw", mingwVersion, mingwURL, root, "", verbose)
+}