Migrate to new build system

.github/workflows/test-cov.yml

@@ -0,0 +1,45 @@
+# This workflow will do a clean installation of node dependencies, cache/restore them, build the source code and run tests across different versions of node
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions
+
+name: Test
+
+on: ["push", "pull_request"]
+
+jobs:
+  build:
+    name: Generate coverage report
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Get branch name
+      id: branch-name
+      uses: tj-actions/branch-names@v6
+
+    - uses: actions/checkout@v3
+      with:
+        repository: biothings/biothings_explorer
+        ref: ${{ steps.branch-name.outputs.current_branch }}
+
+    - name: Use Node.js 18.x
+      uses: actions/setup-node@v3
+      with:
+        node-version: 18.x
+
+    - name: Use pnpm
+      uses: pnpm/action-setup@v2
+      with:
+        version: 8
+
+    - name: pnpm install, generate coverage report
+      run: |
+        pnpm run clone
+        pnpm run git checkout ${{ steps.branch-name.outputs.current_branch }}
+        pnpm i
+        pnpm --filter node-expansion test-cov
+
+    - name: Send coverage report to codecov for visualization
+      uses: codecov/codecov-action@v3
+      with:
+        # working-directory: ./packages/@biothings-explorer/bte-trapi
+        files: ./coverage/lcov.info
+        verbose: true

.gitignore

@@ -130,4 +130,7 @@ dist
 .yarn/unplugged
 .yarn/build-state.yml
 .yarn/install-state.gz
-.pnp.*
+.pnp.*
+
+# Built output
+built

README.md

@@ -5,7 +5,7 @@ Module for expanding terms to children.
 ## Install
 
 ```
-npm i @biothings-explorer/node-expansion
+pnpm i @biothings-explorer/node-expansion
 ```
 
 ## Usage
@@ -61,4 +61,4 @@ console.log(getDescendants(['GO:0022010', 'DOID:0060524', 'DOID:4'], recursive=f
 ```
 node download.js
 ```
- - downloads, converts, and parses all the owl files listed in the config file
+ - downloads, converts, and parses all the owl files listed in the config file