build(ci.yml): added actions/cache@v2 to skip reinstalling npm packages

.github/workflows/ci.yml

@@ -8,12 +8,23 @@ jobs:
     steps:
     - name: Checkout code
       uses: actions/checkout@v2
+
+    - name: Get cached modules
+      uses: actions/cache@v2
+      with:
+        path: '**/node_modules'
+        key: ${{ runner.os }}-modules-${{ hashFiles('**/package-lock.json') }}
+
     - name: Use Node.js latest
       uses: actions/setup-node@v2-beta
       with:
         node-version: "*"
-    - run: npm install
-    - run: npm run build:umd          
+
+    - name: Install all dependencies
+      run: npm install
+
+    - name: Compile TypeScript and build umd files
+      run: npm run build:umd          
 
   lint:
     name: lint
@@ -22,10 +33,18 @@ jobs:
     steps:
     - name: Checkout code
       uses: actions/checkout@v2
+
     - name: Use Node.js latest
       uses: actions/setup-node@v2-beta
       with:
         node-version: "15"
+
+    - name: Get cached modules
+      uses: actions/cache@v2
+      with:
+        path: '**/node_modules'
+        key: ${{ runner.os }}-modules-${{ hashFiles('**/package-lock.json') }}
+
     - name: Run ESLint
       run: npm run lint
 
@@ -36,11 +55,20 @@ jobs:
     steps:
     - name: Checkout code
       uses: actions/checkout@v2
+
     - name: Use Node.js latest
       uses: actions/setup-node@v2-beta
       with:
         node-version: "15"
+
+    - name: Get cached modules
+      uses: actions/cache@v2
+      with:
+        path: '**/node_modules'
+        key: ${{ runner.os }}-modules-${{ hashFiles('**/package-lock.json') }}
+
     - name: Build coverage
       run: npm run test:coverage
+
     - name: Run codecov
       run: node ./node_modules/.bin/codecov

.gitignore

@@ -13,6 +13,4 @@ src/sgp4-legacy.js
 src/sgp4-utils.js
 
 test/performance
-test/satellite/transform*
-
-package-lock.json
+test/satellite/transform*