mv applet.

applets/cp/run.go

@@ -49,19 +49,14 @@ func usage(flagSet *flag.FlagSet) {
 	flagSet.PrintDefaults()
 }
 
-func isDir(path string) bool {
-	stat, errStat := os.Stat(path)
-	return errStat == nil && stat.IsDir()
-}
-
 func cp(recursive bool, list []string) error {
 	if len(list) < 2 {
 		return fmt.Errorf("cp: missing operand")
 	}
 
 	last := len(list) - 1
 	dst := list[last]
-	dstDir := isDir(dst)
+	dstDir := common.IsDir(dst)
 
 	srcMultiple := len(list) > 2
 	if srcMultiple {

applets/mv/run.go

@@ -0,0 +1,90 @@
+package mv
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/udhos/conbox/common"
+)
+
+// Run executes the applet.
+func Run(tab map[string]common.AppletFunc, args []string) int {
+
+	flagSet := flag.NewFlagSet("mv", flag.ContinueOnError)
+	help := flagSet.Bool("h", false, "Show command-line help")
+
+	if err := flagSet.Parse(args); err != nil {
+		usage(flagSet)
+		return 1 // exit status
+	}
+
+	if *help {
+		usage(flagSet)
+		return 2 // exit status
+	}
+
+	if flagSet.NArg() < 2 {
+		fmt.Println("mv: missing operand")
+		usage(flagSet)
+		return 3
+	}
+
+	list := flagSet.Args()
+
+	if errMv := mv(list); errMv != nil {
+		fmt.Printf("mv: %v\n", errMv)
+		return 4
+	}
+
+	return 0
+}
+
+func usage(flagSet *flag.FlagSet) {
+	common.ShowVersion()
+	fmt.Println("mv [OPTION]... SOURCE... DESTINATION")
+	flagSet.PrintDefaults()
+}
+
+func mv(list []string) error {
+	if len(list) < 2 {
+		return fmt.Errorf("mv: missing operand")
+	}
+
+	last := len(list) - 1
+	dst := list[last]
+	dstDir := common.IsDir(dst)
+
+	srcMultiple := len(list) > 2
+	if srcMultiple {
+		if !dstDir {
+			// create dst dir
+			if errMkdir := os.Mkdir(dst, 0777); errMkdir != nil {
+				return errMkdir
+			}
+			dstDir = true
+		}
+	}
+
+	var errLast error
+	for i := 0; i < last; i++ {
+		src := list[i]
+		var dstFull string
+		if dstDir {
+			dstFull = filepath.Join(dst, filepath.Base(src))
+		} else {
+			dstFull = dst
+		}
+		errMv := mvFile(src, dstFull)
+		if errMv != nil {
+			fmt.Printf("mv: %v\n", errMv)
+			errLast = errMv
+		}
+	}
+	return errLast
+}
+
+func mvFile(src, dst string) error {
+	return os.Rename(src, dst)
+}

common/common.go

@@ -2,6 +2,7 @@ package common
 
 import (
 	"fmt"
+	"os"
 	"runtime"
 	"strings"
 )
@@ -20,3 +21,9 @@ func ShowVersion() {
 func Tokenize(line string) []string {
 	return strings.Fields(line) // FIXME WRITEME
 }
+
+// IsDir reports if path exists as directory.
+func IsDir(path string) bool {
+	stat, errStat := os.Stat(path)
+	return errStat == nil && stat.IsDir()
+}

conbox/applets.go

@@ -6,6 +6,7 @@ import (
 	"github.com/udhos/conbox/applets/echo"
 	"github.com/udhos/conbox/applets/ls"
 	"github.com/udhos/conbox/applets/mkdir"
+	"github.com/udhos/conbox/applets/mv"
 	"github.com/udhos/conbox/applets/printenv"
 	"github.com/udhos/conbox/applets/ps"
 	"github.com/udhos/conbox/applets/pwd"
@@ -24,6 +25,7 @@ func loadApplets() map[string]common.AppletFunc {
 		"echo":     echo.Run,
 		"ls":       ls.Run,
 		"mkdir":    mkdir.Run,
+		"mv":       mv.Run,
 		"printenv": printenv.Run,
 		"pwd":      pwd.Run,
 		"ps":       ps.Run,