tools/mmgotool: move into monorepo (mattermost#24010)

server/Makefile

@@ -332,11 +332,11 @@ app-layers: ## Extract interface from App struct
 	$(GO) run ./channels/app/layer_generators -in ./channels/app/app_iface.go -out ./channels/app/opentracing/opentracing_layer.go -template ./channels/app/layer_generators/opentracing_layer.go.tmpl
 
 i18n-extract: ## Extract strings for translation from the source code
-	$(GO) install github.com/mattermost/mattermost-utilities/mmgotool@mono-repo
+	cd ../tools/mmgotool && $(GO) install .
 	$(GOBIN)/mmgotool i18n extract --portal-dir=""
 
 i18n-check: ## Exit on empty translation strings and translation source strings
-	$(GO) install github.com/mattermost/mattermost-utilities/mmgotool@mono-repo
+	cd ../tools/mmgotool && $(GO) install .
 	$(GOBIN)/mmgotool i18n clean-empty --portal-dir="" --check
 	$(GOBIN)/mmgotool i18n check-empty-src --portal-dir=""
 

tools/README.md

@@ -0,0 +1,22 @@
+# Tools
+
+This directory aims to provide a set of tools that simplify and enhance various development tasks. This README file serves as a guide to help you understand the directory, features of these tools, and how to get started using it. This is a collection of utilities and scripts designed to streamline common development tasks for Mattermost. These tools aim to help automate repetitive tasks and improve productivity.
+
+## Included tools
+
+* **mmgotool**: is a CLI to help with i18n related checks for the mattermost/server development.
+
+## Installation & Usage
+
+### mmgotool
+
+To install `mmgotool`, simply run the following command: `go install github.com/mattermost/mattermost/tools/mmgotool`
+
+Make sure you have the necessary prerequisites such as [Go](https://go.dev/) compiler.
+
+`mmgotool i18n` has following subcommands described below:
+
+* `check`: Check translations
+* `check-empty-src`: Check for empty translation source strings
+* `clean-empty`: Clean empty translations
+* `extract`: Extract translations