Added Makefile for fast development

Added Makefile
Added .gitignore line for LANGS.md.bak

Author: nikhiljohn10

.gitignore

@@ -5,3 +5,4 @@ node_modules
 package-lock.json
 .idea
 .swp
+LANGS.md.bak

Makefile

@@ -0,0 +1,81 @@
+LANG      := en
+LANG_FILE := $(shell test -f LANGS.md.bak && echo LANGS.md.bak || echo LANGS.md)
+LANG_DATA := $(shell grep "$(LANG)/" $(LANG_FILE))
+LANG_NAME := $(shell echo "$(LANG_DATA)" | sed 's/.*\[\(.*\)\].*/\1/')
+
+define ebook_support
+	@if which ebook-convert 1> /dev/null; then\
+		npx honkit $(1) ./ ./djangogirls.$(1);\
+	else\
+		echo "Error: ebook-convert is not found. Follow the guide at https://honkit.netlify.app/ebook";\
+	fi
+endef
+
+help:
+	@echo
+	@echo "Usage: make command [LANG=<language_short_code>]"
+	@echo
+	@echo "    LANG : Language short codes are found in LANGS.md. Default is 'en'(English)."
+	@echo "           ( Refer $(LANG_FILE) for short codes of Languages avaiable. )"
+	@echo
+	@echo "Commands:"
+	@echo "  help      - Display make command list."
+	@echo "  dev       - Setup project and start the development server with debugging enabled."
+	@echo "  check     - Check for root directory for various dependencies."
+	@echo "  setup     - Setup the temporary language and install node dependencies for the development. Default is 'en'"
+	@echo "  build     - Build the honkit project."
+	@echo "  build-dev - Build the honkit project with debug log."
+	@echo "  serve     - Start honkit server locally for development."
+	@echo "  pdf       - Generate PDF version of DjangoGirls tutorial."
+	@echo "  epub      - Generate EPUB version of DjangoGirls tutorial."
+	@echo "  mobi      - Generate MOBI version of DjangoGirls tutorial."
+	@echo "  mode      - Shows the development mode status."
+	@echo "  exit      - Reset the project and exit development mode."
+
+check: package.json book.json LANGS.md
+	@if ! which node 1> /dev/null; then\
+		echo "Node.js not found. Please install/reinstall Node.js. NVM is recommended for installation(https://github.com/nvm-sh/nvm).";\
+	fi
+
+setup: check
+	@if ! test -f "LANGS.md.bak"; then\
+		cp LANGS.md LANGS.md.bak && echo "Language file backup is created.";\
+		echo "$(LANG_DATA)" > LANGS.md && echo "Language list is reduced to $(LANG_NAME) for development";\
+		npm install && echo "Project is ready for development.";\
+	fi
+
+build: setup
+	@npx honkit build
+
+build-dev: setup
+	@npx honkit build --log=debug
+
+serve: setup
+	@npx honkit serve
+
+dev: setup
+	@npx honkit serve --log=debug
+
+mode:
+	@if test -f "LANGS.md.bak"; then\
+		echo "You are in development mode";\
+	else\
+		echo "You are not in development mode";\
+	fi
+
+exit:
+	@if test -f "LANGS.md.bak"; then\
+		mv -f LANGS.md.bak LANGS.md && echo "Language file is reset";\
+		rm -rf node_modules _book && echo "The project exited development mode.";\
+	fi
+
+pdf:
+	$(call ebook_support,pdf)
+
+epub:
+	$(call ebook_support,epub)
+
+mobi:
+	$(call ebook_support,mobi)
+
+.PHONY: help check reset setup build build-dev serve dev pdf epub mobi mode exit