improve github actions

.github/workflows/main.yml

@@ -1,27 +1,54 @@
 name: Continuous Integration
 on:
-  - push
-  - pull_request
+  # Triggers the workflow on push or pull request events but only for the master branch
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
 
 jobs:
   setup:
     runs-on: ubuntu-latest
     steps:
+      echo "No action setup currently needed, skipping..."
+
+  build:
+    needs: setup
+    runs-on: ubuntu-latest  
       - name: Checkout code
         uses: actions/checkout@v2
         with:
-          submodules: true
+          submodules: 'recursive'
       - name: Setup Python
         uses: actions/setup-python@v2
         with:
           python-version: 3.x
-      - name: Install Platform IO and meshtastic-python
+
+      - name: Cache python libs
+        uses: actions/cache@v1
+        id: cache-pip # needed in if test
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-pip
+
+      - name: Upgrade python tools
+        # We actually want to run this every time
+        # if: steps.cache-pip.outputs.cache-hit != 'true'
         run: |
           python -m pip install --upgrade pip
-          pip install -U platformio meshtastic
-      - name: Install extra python tools
+          pip install -U platformio meshtastic adafruit-nrfutil
+
+      - name: Cache platformio
+        uses: actions/cache@v1
+        id: cache-platformio # needed in if test
+        with:
+          path: ~/.platformio
+          key: ${{ runner.os }}-platformio
+
+      - name: Upgrade platformio
         run: |
-          pip install -U adafruit-nrfutil
+          pio upgrade
+
       - name: Build for tbeam
         run: platformio run -e tbeam
       - name: Build for heltec

docs/CNAME

@@ -1 +0,0 @@
-www.meshtastic.org