feat(build): add cleanbuild system + a touch of color

build/build.go

@@ -5,6 +5,9 @@ import (
 	"os"
 	"path"
 	"strings"
+
+	"github.com/gookit/color"
+	"golang.org/x/term"
 )
 
 const LUAU_VERSION = "0.634"
@@ -17,6 +20,8 @@ func bail(err error) {
 }
 
 func buildVm(artifactPath string, cmakeFlags ...string) {
+	color.Blue.Println("> Cloning luau-lang/luau")
+
 	dir, homeDirErr := os.MkdirTemp("", "lei-build")
 	bail(homeDirErr)
 
@@ -26,6 +31,10 @@ func buildVm(artifactPath string, cmakeFlags ...string) {
 	Exec("git", "", "clone", "https://github.com/luau-lang/luau.git", dir)
 	Exec("git", dir, "checkout", LUAU_VERSION)
 
+	color.Green.Printf("> Cloned repo to%s\n\n", dir)
+
+	color.Blue.Println("> Compile libLuau.VM.a")
+
 	// Build the Luau VM using CMake
 	buildDir := path.Join(dir, "cmake")
 	bail(os.Mkdir(buildDir, os.ModePerm))
@@ -34,9 +43,8 @@ func buildVm(artifactPath string, cmakeFlags ...string) {
 	Exec("cmake", buildDir, append(defaultCmakeFlags, cmakeFlags...)...)
 	Exec("cmake", buildDir, "--build", ".", "--target Luau.VM", "--config", "RelWithDebInfo")
 
-	// TODO: Write status file including version & build type (vector3 or vector4)
+	color.Green.Println("> Successfully compiled!\n")
-	//       If current build type and version differ, then rebuild from scratch and
+
-	//       replace
 	// Copy the artifact to the artifact directory
 	artifactFile, artifactErr := os.ReadFile(path.Join(buildDir, ARTIFACT_NAME))
 	bail(artifactErr)
@@ -49,6 +57,7 @@ func main() {
 
 	artifactDir := path.Join(homeDir, ".lei")
 	artifactPath := path.Join(artifactDir, ARTIFACT_NAME)
+	lockfilePath := path.Join(artifactDir, ".lock")
 
 	bail(os.MkdirAll(artifactDir, os.ModePerm))
 
@@ -62,16 +71,23 @@ func main() {
 	for _, arg := range args {
 		if arg == "--enable-vector4" {
 			features = append(features, "LUAU_VECTOR4")
+			// FIXME: This flag apparently isn't recognized by cmake for some reason
 			cmakeFlags = append(cmakeFlags, "-DLUAU_VECTOR_SIZE=4")
 		} else {
 			goArgs = append(goArgs, arg)
 		}
 	}
 
-	if _, err := os.Stat(artifactPath); err == nil {
+	lockfileContents, err := os.ReadFile(lockfilePath)
+	bail(err)
+
+	serFeatures := fmt.Sprintf("%v", features)
+	toCleanBuild := string(lockfileContents) != serFeatures
+	if _, err := os.Stat(artifactPath); err == nil && !toCleanBuild {
 		fmt.Printf("[build] Using existing artifact at %s\n", artifactPath)
 	} else {
 		buildVm(artifactPath, cmakeFlags...)
+		bail(os.WriteFile(lockfilePath, []byte(serFeatures), os.ModePerm))
 	}
 
 	buildTags := []string{}
@@ -79,6 +95,10 @@ func main() {
 		buildTags = append(buildTags, []string{"-tags", strings.Join(features, ",")}...)
 	}
 
+	w, _, termErr := term.GetSize(int(os.Stdout.Fd()))
+	bail(termErr)
+	fmt.Println(strings.Repeat("=", w))
+
 	subcommand := goArgs[0]
 	goArgs = goArgs[1:]
 	combinedArgs := append(buildTags, goArgs...)