Add SourceFile and WD methods to Path struct for file path retrieval

Author: maa3x

path.go

@@ -7,6 +7,7 @@ import (
 	"io/fs"
 	"os"
 	"path/filepath"
+	"runtime"
 )
 
 type Path string
@@ -15,6 +16,22 @@ func New(v ...string) Path {
 	return Path(filepath.Join(v...))
 }
 
+// ThisFile retrieves the path of the source file from which it was invoked.
+func ThisFile() Path {
+	_, f, _, _ := runtime.Caller(1)
+	return New(f)
+}
+
+// WD returns the path of the application’s current working directory.
+func WD() Path {
+	v := "."
+	if wd, err := os.Getwd(); err == nil {
+		v = wd
+	}
+
+	return New(v)
+}
+
 func (p Path) String() string {
 	return string(p)
 }

path_test.go

@@ -2,6 +2,7 @@ package ppath
 
 import (
 	"io/fs"
+	"log"
 	"os"
 	"path/filepath"
 	"runtime"
@@ -637,3 +638,25 @@ func TestAppendf(t *testing.T) {
 		t.Errorf("expected %s, got %s", expected, result.String())
 	}
 }
+
+func TestSourceFile(t *testing.T) {
+	// Test that SourceFile returns the correct path of the current file
+	expected := WD().Join("path_test.go").String()
+	log.Println(ThisFile())
+	sourceFile := ThisFile().String()
+	if sourceFile != expected {
+		t.Errorf("expected %s, got %s", expected, sourceFile)
+	}
+}
+
+func TestWD(t *testing.T) {
+	wd, err := os.Getwd()
+	if err != nil {
+		t.Fatalf("os.Getwd: %v", err)
+	}
+
+	p := WD()
+	if p.String() != wd {
+		t.Errorf("expected %s, got %s", wd, p.String())
+	}
+}