add goinfo ListRelatvieFiles

cmd/xgo/version.go

@@ -6,8 +6,8 @@ import "fmt"
 // VERSION is manually updated when needed a new tag
 // see also runtime/core/version.go
 const VERSION = "1.0.50"
-const REVISION = "b041912e5d7457935e52026572c003b0f0808d59+1"
-const NUMBER = 314
+const REVISION = "403a999217b51a86240a37e57c09ddfc6a731851+1"
+const NUMBER = 315
 
 // the matching runtime/core's version
 // manually updated

support/fileutil/slashlize.go

@@ -0,0 +1,13 @@
+package fileutil
+
+import (
+	"path/filepath"
+	"strings"
+)
+
+func Slashlize(path string) string {
+	if filepath.Separator == '/' {
+		return path
+	}
+	return strings.ReplaceAll(path, string(filepath.Separator), "/")
+}

support/goinfo/list.go

@@ -1,6 +1,8 @@
 package goinfo
 
 import (
+	"encoding/json"
+	"path/filepath"
 	"strings"
 
 	"github.com/xhd2015/xgo/support/cmd"
@@ -20,3 +22,60 @@ func ListPackages(dir string, mod string, args []string) ([]string, error) {
 	lines := strings.Split(output, "\n")
 	return lines, nil
 }
+
+// ListRelatvieFiles list all go files, return a list of relative paths
+func ListRelatvieFiles(dir string, args []string) ([]string, error) {
+	absDir, err := filepath.Abs(dir)
+	if err != nil {
+		return nil, err
+	}
+	flags := []string{"list", "-e", "-json"}
+	flags = append(flags, args...)
+	res, err := cmd.Dir(dir).Output("go", flags...)
+	if err != nil {
+		return nil, err
+	}
+	var relFiles []string
+	dec := json.NewDecoder(strings.NewReader(res))
+	for dec.More() {
+		// check 'go help list'
+		var pkg struct {
+			// the abs dir
+			Dir string
+			// the file names
+			GoFiles []string
+		}
+		err := dec.Decode(&pkg)
+		if err != nil {
+			return nil, err
+		}
+		if len(pkg.GoFiles) > 0 {
+			absPkgDir, err := filepath.Abs(pkg.Dir)
+			if err != nil {
+				return nil, err
+			}
+			for _, goFile := range pkg.GoFiles {
+				if !strings.HasSuffix(goFile, ".go") {
+					// some cache files
+					continue
+				}
+				absGoFile := goFile
+				if !filepath.IsAbs(goFile) {
+					// go list outputs file names
+					// in most cases this goFile is not absolute
+					absGoFile = filepath.Join(absPkgDir, goFile)
+				}
+
+				// this is just for compatibility
+				if !strings.HasPrefix(absGoFile, absDir) {
+					continue
+				}
+				relFile := strings.TrimPrefix(absGoFile[len(absDir):], string(filepath.Separator))
+				if relFile != "" {
+					relFiles = append(relFiles, relFile)
+				}
+			}
+		}
+	}
+	return relFiles, nil
+}