add config file support

1 files changed, 50 insertions, 20 deletions

diff --git a/pkg/server/server.go b/pkg/server/server.go
index a9a50a4..badf5c0 100644
--- a/pkg/server/server.go
+++ b/pkg/server/server.go
@@ -51,7 +51,9 @@ type request struct {
 	argc int
 	args []string
 
-	out *bytes.Buffer
+	fail bool
+
+	out bytes.Buffer
 }
 
 type requestError string
@@ -67,15 +69,15 @@ func (r *request) String() string {
 }
 
 func (r *request) Print(v ...interface{}) {
-	fmt.Fprint(r.out, v...)
+	fmt.Fprint(&r.out, v...)
 }
 
 func (r *request) Printf(format string, v ...interface{}) {
-	fmt.Fprintf(r.out, format, v...)
+	fmt.Fprintf(&r.out, format, v...)
 }
 
 func (r *request) Println(v ...interface{}) {
-	fmt.Fprintln(r.out, v...)
+	fmt.Fprintln(&r.out, v...)
 }
 
 func (r *request) Fatal(v ...interface{}) {
@@ -145,6 +147,14 @@ func New(path string) (*Server, error) {
 	return s, nil
 }
 
+func (s *Server) Env() env.Env {
+	return s.env
+}
+
+func (s *Server) Socket() string {
+	return s.listen.Addr().String()
+}
+
 func (s *Server) Run() {
 	for {
 		conn, err := s.listen.Accept()
@@ -188,11 +198,28 @@ func (s *Server) newClient(conn net.Conn) *client {
 	return c
 }
 
+func (s *Server) Command(query string) error {
+	args := strings.Split(query, " ")
+
+	r := &request{c: &client{s: s}}
+
+	r.run(args)
+
+	if r.fail {
+		if r.out.Len() == 0 {
+			return errors.New("failed")
+		}
+
+		return errors.New(r.out.String())
+	}
+
+	return nil
+}
+
 func (c *client) newRequest() *request {
 	r := &request{
-		c:   c,
-		id:  c.nextRid,
-		out: new(bytes.Buffer),
+		c:  c,
+		id: c.nextRid,
 	}
 
 	c.nextRid++
@@ -214,11 +241,15 @@ func (c *client) handle() {
 			break
 		}
 
-		query := string(buf[:nr])
+		args, err := c.decode(buf[:nr])
+		if err != nil {
+			log.Println(c, "decode:", err)
+			break
+		}
 
 		r := c.newRequest()
 
-		r.run(query)
+		r.run(args)
 
 		if r.out.Len() == 0 {
 			r.out.Write([]byte("\n"))
@@ -232,8 +263,8 @@ func (c *client) handle() {
 	}
 }
 
-func (r *request) decode(query string) []string {
-	dec := netstring.NewDecoder(bytes.NewReader([]byte(query)))
+func (c *client) decode(b []byte) ([]string, error) {
+	dec := netstring.NewDecoder(bytes.NewReader(b))
 	var t []string
 
 	for {
@@ -241,14 +272,14 @@ func (r *request) decode(query string) []string {
 			t = append(t, s)
 		} else {
 			if !errors.Is(err, io.EOF) {
-				r.Fatal("request parse failed")
+				return nil, err
 			}
 
 			break
 		}
 	}
 
-	return t
+	return t, nil
 }
 
 func (r *request) eval(args []string) []string {
@@ -263,10 +294,8 @@ func (r *request) eval(args []string) []string {
 	return args
 }
 
-func (r *request) parse(query string) {
-	args := r.eval(r.decode(query))
-
-	c, args := getCmd(args)
+func (r *request) parse(args []string) {
+	c, args := getCmd(r.eval(args))
 	if c == nil {
 		r.Fatal("command not found")
 	}
@@ -276,20 +305,21 @@ func (r *request) parse(query string) {
 	r.cmd = c
 }
 
-func (r *request) run(query string) {
+func (r *request) run(args []string) {
 	defer func() {
 		switch err := recover().(type) {
 		case requestError:
 			r.Print(err)
+			r.fail = true
 		default:
 			panic(err)
 		case nil:
 		}
 	}()
 
-	r.parse(query)
+	log.Println(r.c, r, ">", strings.Join(args, " "))
 
-	log.Println(r.c, r, ">", r.cmd.name, strings.Join(r.args, " "))
+	r.parse(args)
 
 	r.c.s.mu.Lock()
 	defer r.c.s.mu.Unlock()