yarn3 + typescript (#56)

* Add basic vscode dev container support + update all dependencies
* chore: upgrade to latest yarn + zero-installs / pnp mode
* convert to typescript
* update travis env

.devcontainer/Dockerfile

@@ -0,0 +1,16 @@
+# See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.202.3/containers/javascript-node/.devcontainer/base.Dockerfile
+
+# [Choice] Node.js version (use -bullseye variants on local arm64/Apple Silicon): 16, 14, 12, 16-bullseye, 14-bullseye, 12-bullseye, 16-buster, 14-buster, 12-buster
+ARG VARIANT="16-bullseye"
+FROM mcr.microsoft.com/vscode/devcontainers/javascript-node:0-${VARIANT}
+
+# [Optional] Uncomment this section to install additional OS packages.
+# RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+#     && apt-get -y install --no-install-recommends <your-package-list-here>
+
+# [Optional] Uncomment if you want to install an additional version of node using nvm
+# ARG EXTRA_NODE_VERSION=10
+# RUN su node -c "source /usr/local/share/nvm/nvm.sh && nvm install ${EXTRA_NODE_VERSION}"
+
+# [Optional] Uncomment if you want to install more global node modules
+# RUN su node -c "npm install -g <your-package-list-here>"

.devcontainer/devcontainer.json

@@ -0,0 +1,31 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.202.3/containers/javascript-node
+{
+  "name": "simple-plist",
+  "runArgs": ["--init"],
+  "build": {
+    "dockerfile": "Dockerfile",
+    // Update 'VARIANT' to pick a Node version: 16, 14, 12.
+    // Append -bullseye or -buster to pin to an OS version.
+    // Use -bullseye variants on local arm64/Apple Silicon.
+    "args": { "VARIANT": "16-bullseye" }
+  },
+
+  // Set *default* container specific settings.json values on container create.
+  "settings": {},
+
+  // Add the IDs of extensions you want installed when the container is created.
+  "extensions": ["dbaeumer.vscode-eslint"],
+
+  // Use 'forwardPorts' to make a list of ports inside the container available locally.
+  // "forwardPorts": [],
+
+  // Use 'postCreateCommand' to run commands after the container is created.
+  // "postCreateCommand": "yarn install",
+
+  // Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+  "remoteUser": "node",
+  "features": {
+    "git": "latest"
+  }
+}

.gitignore

@@ -1,5 +1,14 @@
 __tests__/write-test*
 package-lock.json
+dist
+
+.yarn/*
+!.yarn/cache
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions
 
 # Created by https://www.gitignore.io/api/node,macos,linux,windows
 # Edit at https://www.gitignore.io/?templates=node,macos,linux,windows

.husky/.gitignore

@@ -0,0 +1 @@
+_

.husky/pre-commit

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+#!/bin/sh
+. "$(dirname "$0")/_/husky.sh"
+
+npx lint-staged