Add initial support for PlatformIO in CI

Author: valeros

Diff for: .travis.yml

@@ -34,6 +34,29 @@ matrix:
           else
             echo "Coding style check OK";
           fi
+
+#
+# PlatformIO test
+#
+  - env:
+      - NAME=PlatformIO
+      - CMSIS_VERSION=5.5.1
+    install:
+      # Install PlatformIO
+      - pip install -U platformio
+      # Install the development version of ststm32 platform
+      - platformio platform install https://github.com/platformio/platform-ststm32.git
+      # Prepare framework for CI
+      - python -c "import json; import os; fp=open(os.path.expanduser('~/.platformio/platforms/ststm32/platform.json'), 'r+'); data=json.load(fp); data['packages']['framework-arduinoststm32']['version'] = '*'; fp.seek(0); fp.truncate(); json.dump(data, fp); fp.close()"
+      - sudo ln -sf $TRAVIS_BUILD_DIR ~/.platformio/packages/framework-arduinoststm32
+      # Download and unpack CMSIS package
+      - wget https://github.com/stm32duino/ArduinoModule-CMSIS/releases/download/$CMSIS_VERSION/CMSIS-$CMSIS_VERSION.tar.bz2
+      - tar -xvjf CMSIS-$CMSIS_VERSION.tar.bz2
+    before_script:
+      - cd $TRAVIS_BUILD_DIR/CI/build/
+    script:
+      - python platformio-builder.py --board=blackpill_f103c8 --board=remram_v1
+          
 #
 # Build test
 #

Diff for: CI/build/platformio-builder.py

@@ -0,0 +1,45 @@
+import argparse
+import os
+import subprocess
+import sys
+
+
+def run_platformio(example_path, boards):
+    return subprocess.call(
+        ["platformio", "ci", example_path] + ["--board=" + b for b in boards])
+
+
+def collect_examples(libs_dir):
+    examples = []
+    for lib in os.listdir(libs_dir):
+        lib_dir = os.path.join(libs_dir, lib)
+        examples_dir = os.path.join(lib_dir, "examples")
+        if os.path.isdir(examples_dir):
+            examples.extend(
+                [os.path.join(examples_dir, ex) for ex in os.listdir(examples_dir)])
+    return examples
+
+
+parser = argparse.ArgumentParser(description="Basic PlatformIO runner")
+
+parser.add_argument(
+    "-b",
+    "--board",
+    action="append",
+    help="board ID used for PlatformIO project"
+)
+
+
+def main():
+    args = parser.parse_args()
+    boards = args.board
+    if boards is None:
+        boards = ["nucleo_f401re"]
+
+    libs_dir = os.path.join(os.environ["TRAVIS_BUILD_DIR"], "libraries")
+    if any(run_platformio(example, boards) for example in collect_examples(libs_dir)):
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()