better CLI interface

cmd/integration_test/main.go

@@ -0,0 +1,49 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+
+	"github.com/jesseduffield/lazygit/pkg/integration/clients"
+)
+
+var usage = `
+Usage:
+	See https://github.com/jesseduffield/lazygit/tree/master/pkg/integration/README.md
+
+	CLI mode:
+		> go run cmd/integration_test/main.go cli <test1> <test2> ...
+	If you pass no test names, it runs all tests
+	Accepted environment variables:
+	KEY_PRESS_DELAY (e.g. 200): the number of milliseconds to wait between keypresses
+	MODE:
+		* ask (default): if a snapshot test fails, asks if you want to update the snapshot
+		* check: if a snapshot test fails, exits with an error
+		* update: if a snapshot test fails, updates the snapshot
+		* sandbox: uses the test's setup step to run the test in a sandbox where you can do whatever you want
+
+	TUI mode:
+		> go run cmd/integration_test/main.go tui
+	This will open up a terminal UI where you can run tests
+
+	Help:
+		> go run cmd/integration_test/main.go help
+`
+
+func main() {
+	if len(os.Args) < 2 {
+		log.Fatal(usage)
+	}
+
+	switch os.Args[1] {
+	case "help":
+		fmt.Println(usage)
+	case "cli":
+		clients.RunCLI(os.Args[2:])
+	case "tui":
+		clients.RunTUI()
+	default:
+		log.Fatal(usage)
+	}
+}