Migrate package manager to Yarn Modern (#628)

We were using Yarn Classic. While this is not deprecated, Yarn is moving
in a different direction with Yarn Modern (read more
[here](https://yarnpkg.com/migration/overview)) and we should align with
that. The migration mainly requires rebuilding our lockfile. We will
still use `node_modules` for now, though in the future we may want to
adopt the new [Plug'n'Play model](https://yarnpkg.com/features/pnp).

.github/workflows/build-helper.yml

@@ -46,6 +46,10 @@ jobs:
               with:
                   node-version: ${{env.NODE_VERSION}}
                   cache: "yarn"
+            - name: Install yarn
+              run: |
+                  corepack enable
+                  yarn install
             - name: Set Version
               id: set-version
               run: |

.github/workflows/regression.yml

@@ -29,7 +29,8 @@ jobs:
                       brew install go
                       brew tap scripthaus-dev/scripthaus
                       brew install scripthaus
-            npm install -g yarn
+                      corepack enable
+                      yarn install
                       scripthaus run build-backend
                       echo "Yarn"
                       yarn

.gitignore

@@ -22,3 +22,12 @@ test/
 .vscode/
 make/
 waveterm-builds.zip
+
+# Yarn Modern
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions

.testdriver/prerun.sh

@@ -3,7 +3,8 @@ cd ~/actions-runner/_work/testdriver/testdriver/
 brew install go
 brew tap scripthaus-dev/scripthaus
 brew install scripthaus
-npm install -g yarn
+corepack enable
+yarn install
 scripthaus run build-backend
 echo "Yarn"
 yarn

.yarnrc.yml

@@ -0,0 +1 @@
+nodeLinker: node-modules

BUILD.md

@@ -11,13 +11,13 @@ If you install the production version of Wave, you'll see a semi-transparent gra
 
 Download and install Go (must be at least go 1.18):
 
-```
+```sh
 brew install go
 ```
 
 Download and install ScriptHaus (to run the build commands):
 
-```
+```sh
 brew tap scripthaus-dev/scripthaus
 brew install scripthaus
 ```
@@ -27,19 +27,20 @@ You also need a relatively modern nodejs with npm and yarn installed.
 -   Node can be installed from [https://nodejs.org](https://nodejs.org).
 -   npm can install yarn using:
 
-```
-npm install -g yarn
+```sh
+corepack enable
+yarn install
 ```
 
 ## Clone the Repo
 
-```
+```sh
 git clone git@github.com:wavetermdev/waveterm.git
 ```
 
 ## Building WaveShell / WaveSrv
 
-```
+```sh
 scripthaus run build-backend
 ```
 
@@ -49,7 +50,7 @@ This builds the Golang backends for Wave. The binaries will put in waveshell/bin
 
 Install modules (we use yarn):
 
-```
+```sh
 yarn
 ```
 
@@ -57,7 +58,7 @@ yarn
 
 We use webpack to build both the React and Electron App Wrapper code. They are both run together using:
 
-```
+```sh
 scripthaus run webpack-watch
 ```
 
@@ -65,7 +66,7 @@ scripthaus run webpack-watch
 
 Now that webpack is running (and watching for file changes) we can finally run the WaveTerm Dev Client! To start the client run:
 
-```
+```sh
 scripthaus run electron
 ```
 

package.json

@@ -106,5 +106,6 @@
     },
     "scripts": {
         "postinstall": "electron-builder install-app-deps"
-    }
+    },
+    "packageManager": "yarn@4.1.1"
 }

scripthaus.md

@@ -115,15 +115,3 @@ scripthaus run fullbuild-waveshell
 echo building wavesrv
 scripthaus run build-wavesrv
 ```
-
-```bash
-# @scripthaus command generate-license-disclaimers
-DISCLAIMER_DIR="./acknowledgements"
-DISCLAIMER_OUTPUT_DIR="$DISCLAIMER_DIR/disclaimers"
-if [ -d "$DISCLAIMER_OUTPUT_DIR" ]; then
-    rm -rf "$DISCLAIMER_OUTPUT_DIR"
-fi
-mkdir "$DISCLAIMER_OUTPUT_DIR"
-go run github.com/google/go-licenses@latest report ./wavesrv/... ./waveshell/... --template "$DISCLAIMER_DIR/go_licenses_report.tpl" --ignore github.com/wavetermdev/waveterm > "$DISCLAIMER_OUTPUT_DIR/backend.md"
-yarn licenses generate-disclaimer > "$DISCLAIMER_OUTPUT_DIR/frontend.md"
-```