resolve hosts

client/hosts.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/kevinburke/ssh_config"
+)
+
+func SSHConfigPath() (string, error) {
+	home, err := os.UserHomeDir()
+	if err != nil {
+		return "", err
+	}
+
+	return filepath.Join(home, ".ssh", "config"), nil
+}
+
+func LoadSSHConfig() (*ssh_config.Config, error) {
+	path, err := SSHConfigPath()
+	if err != nil {
+		return nil, err
+	}
+
+	if _, err := os.Stat(path); os.IsNotExist(err) {
+		return new(ssh_config.Config), nil
+	}
+
+	file, err := os.OpenFile(path, os.O_RDONLY, 0)
+	if err != nil {
+		return nil, err
+	}
+
+	defer file.Close()
+
+	cfg, err := ssh_config.Decode(file)
+	if err != nil {
+		return nil, err
+	}
+
+	return cfg, nil
+}

client/main.go

@@ -23,25 +23,17 @@ var (
 
 func main() {
 	app := &cli.Command{
-		Name:    "up",
-		Usage:   "UP client",
-		Version: Version,
+		Name:      "up",
+		Usage:     "UP client",
+		Version:   Version,
+		ArgsUsage: "<file> <host>",
+		UsageText: "up [options] <file> <host>",
 		Flags: []cli.Flag{
 			&cli.StringFlag{
-				Name:    "key",
-				Aliases: []string{"k"},
+				Name:    "identity",
+				Aliases: []string{"i"},
 				Usage:   "private key file for authentication",
 			},
-			&cli.StringFlag{
-				Name:    "file",
-				Aliases: []string{"f"},
-				Usage:   "file to upload",
-			},
-			&cli.StringFlag{
-				Name:    "target",
-				Aliases: []string{"t"},
-				Usage:   "target to upload to",
-			},
 		},
 		Action:                 run,
 		EnableShellCompletion:  true,