9sh

commit 3bbf3f7f0a91c7b7b9e3da8ed2b088eaa100c5cb
parent c92b0536fa120e05c8305b243eebe1d69599ec86
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Sat,  9 Dec 2023 08:35:11 +0900

add cd without args

Diffstat:
M
main.go
 | 
12
++++++++++--

1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/main.go b/main.go
@@ -38,10 +38,17 @@ func (c *cmd) run(s *stat) error {
 	}
 	switch c.args[0] {
 	case "cd":
-		if len(c.args) != 2 {
+		var p string
+		if len(c.args) == 1 {
+			p = "."
+		} else if len(c.args) == 2 {
+			p = path.Join(s.cwd, c.args[1])
+		} else {
 			return fmt.Errorf("usage: cd <dir>")
 		}
-		p := path.Join(s.cwd, c.args[1])
+		if s.f != nil {
+			s.f.Close()
+		}
 		f, err := s.fsys.Open(p)
 		if err != nil {
 			return err
@@ -84,6 +91,7 @@ func main() {
 		fsys: lib9p.ExportFS{fsys},
 	}
 	for {
+		fmt.Printf("9%% ")
 		c := <-cc
 		if c.err == io.EOF {
 			break