llgo clean

internal/build/clean.go

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package build
+
+import (
+	"fmt"
+	"os"
+	"path"
+	"path/filepath"
+
+	"golang.org/x/tools/go/packages"
+)
+
+func Clean(args []string, conf *Config) {
+	flags, patterns, verbose := parseArgs(args)
+	cfg := &packages.Config{
+		Mode:       loadSyntax | packages.NeedExportFile,
+		BuildFlags: flags,
+	}
+
+	if patterns == nil {
+		patterns = []string{"."}
+	}
+	initial, err := packages.Load(cfg, patterns...)
+	check(err)
+
+	cleanPkgs(initial, verbose)
+
+	for _, pkg := range initial {
+		if pkg.Name == "main" {
+			cleanMainPkg(pkg, conf, verbose)
+		}
+	}
+}
+
+func cleanMainPkg(pkg *packages.Package, conf *Config, verbose bool) {
+	pkgPath := pkg.PkgPath
+	name := path.Base(pkgPath)
+	fname := name + conf.AppExt
+	app := filepath.Join(conf.BinPath, fname)
+	removeFile(app, verbose)
+	if len(pkg.CompiledGoFiles) > 0 {
+		dir := filepath.Dir(pkg.CompiledGoFiles[0])
+		buildApp := filepath.Join(dir, fname)
+		removeFile(buildApp, verbose)
+	}
+}
+
+func cleanPkgs(initial []*packages.Package, verbose bool) {
+	packages.Visit(initial, nil, func(p *packages.Package) {
+		file := p.ExportFile + ".ll"
+		removeFile(file, verbose)
+	})
+}
+
+func removeFile(file string, verbose bool) {
+	if _, err := os.Stat(file); os.IsNotExist(err) {
+		return
+	}
+	if verbose {
+		fmt.Fprintln(os.Stderr, "Remove", file)
+	}
+	os.Remove(file)
+}