.gitignore

+.DS_Store
+.DS_Store?
+._*
+*~
+*#
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+.vscode/
+.idea/
+pnpm-lock.yaml
+package-lock.json
+package-install.lock
+node_modules/
 _out/
 *.zip
+*.svg
+*.bbmodel

.gitlab-ci.yml

+image: node:12.17.0
+cache:
+  paths:
+    - node_modules/
+pages:
+  stage: deploy
+  script:
+    - npm install
+    - npm run build
+    - mkdir public
+    - cp -f _out/*.datapack.zip public/datapack.zip || true
+    - cp -f _out/*.resourcepack.zip public/resourcepack.zip || true
+  artifacts:
+    paths:
+      - public
+  rules:
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH

.nvmrc

+v12.17.0

Makefile

-.PHONY: all nvm datapack resourcepack install clean
+.PHONY: build dev install clean
+.DEFAULT_GOAL := dev
 
-all: install
+ifeq ($(shell test -f "$(HOME)/.nvm/nvm.sh"; echo $$?),0)
+NVM := . $(HOME)/.nvm/nvm.sh && nvm use &> /dev/null
+else
+NVM := true
+endif
 
-nvm:
-	source $(HOME)/.nvm/nvm.sh && nvm use 12.17.0
+ifeq (,$(shell $(NVM) && which pnpm))
+NPM := $(NVM) && npm
+else
+NPM := $(NVM) && pnpm
+endif
 
-build: nvm
-	minecraft-packager build --resourcepack
+build: install
+	$(NPM) run build
 
-install: build
-	minecraft-packager install --resourcepack
+dev: install
+	$(NPM) run dev
+
+install: package-install.lock
+
+package-install.lock: package.json
+	$(NPM) install
+	touch package-install.lock
 
 clean:
 	rm -rf _out/

README.md

+This resource pack adds a variant of acacia leaves that have orange flowers, much like the 1.17 flowering azalea trees.
+
+![A screenshot of a flowering acacia tree.](./.images/acacia.png)

package.json

+{
+  "name": "flowering-acacia",
+  "version": "0.0.4",
+  "description": "Adds variated orange flowers to acacia tree leaves!",
+  "scripts": {
+    "build": "minecraft-packager build",
+    "dev": "minecraft-packager install"
+  },
+  "config": {
+    "format": "1.20",
+    "type": "resourcepack",
+    "supports": ["1.17", "1.18", "1.19", "1.20"]
+  },
+  "author": "James Fenn <me@jfenn.me> (https://jfenn.me/)",
+  "license": "UNLICENSED",
+  "devDependencies": {
+    "minecraft-packager": "^1.3.1"
+  }
+}

package.yml

-name: Flowering Acacia
-version: 0.0.1
-description: Adds variated orange flowers to acacia tree leaves!
-author: James Fenn <me@jfenn.me>