gordon setup

README.md

@@ -41,6 +41,12 @@ then run
 $ GO111MODULE=on go get github.com/kyoh86/gordon@latest
 ```
 
+And you should setup shell in `.bashrc` or `.zshrc`.
+
+```sh
+eval "$(command gordon setup)"
+```
+
 ## Usage
 
 ```console

internal/command/setup.go

@@ -0,0 +1,11 @@
+package command
+
+import (
+	"context"
+	"fmt"
+)
+
+func Setup(_ context.Context, ev Env) error {
+	fmt.Printf(`export PATH="%s:${PATH}"%s`, ev.Bin(), "\n")
+	return nil
+}

main.go

@@ -47,6 +47,7 @@ func main() {
 
 		dump,
 		restore,
+		setup,
 	} {
 		key, run := f(app)
 		cmds[key] = run
@@ -171,3 +172,10 @@ func update(app *kingpin.Application) (string, func() error) {
 		return command.Update(context.Background(), ev)
 	})
 }
+
+func setup(app *kingpin.Application) (string, func() error) {
+	cmd := app.Command("setup", "Setup shell to support gordon")
+	return mainutil.WrapCommand(cmd, func(ev command.Env) error {
+		return command.Setup(context.Background(), ev)
+	})
+}