Merge branch 'dev' into 18-automatic-id-generation

# Conflicts:
#	test/basics_test.dart
#	test/box_test.dart
#	test/test.dart

Author: vaind

.github/workflows/dart.yml

@@ -0,0 +1,22 @@
+name: Dart CI
+
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    
+    container:
+      image:  google/dart:latest
+    
+    steps:
+    - uses: actions/checkout@v1
+    - name: Install ObjectBox C-API
+      run: ./install.sh
+    - name: Install dependencies
+      run: pub get
+    - name: Generate ObjectBox models
+      run: pub run build_runner build
+    - name: Run tests
+      run: pub run test

README.md

@@ -39,7 +39,7 @@ To try out the demo code in this repository, follow these steps:
 1. Install [objectbox-c](https://github.com/objectbox/objectbox-c) system-wide: `bash <(curl -s https://github.com/raw/objectbox/objectbox-c/master/download.sh) 0.7` (answer Y when it asks about installing to /usr/lib).
 2. Back in this repository, run `pub get`.
 3. Execute `pub run build_runner build`. This regenerates the ObjectBox model to make it usable in Dart (i.e. the file `test/test.g.dart`) and is necessary each time you add or change a class annotated with `@Entity(...)`.
-4. Finally run `pub run test test/test.dart` to run the unit tests.
+4. Finally run `pub run test` to run the unit tests.
 
 Contribution guide
 ------------------
@@ -67,7 +67,7 @@ As specified in step 3 of the _Getting started_ section, Dart's _build\_runner_
 
 ```dart
 import "../lib/objectbox.dart";
-part "test.g.dart";
+part "basics_test.g.dart";
 
 @Entity(id: 1, uid: 1)
 class Note {

install.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+set -eu
+
+cLibVersion=0.7
+os=$(uname)
+
+# if there's no tty this is probably part of a docker build - therefore we install the c-api explicitly
+cLibArgs=
+if [[ "$os" != MINGW* ]] && [[ "$os" != CYGWIN* ]]; then
+  tty -s || cLibArgs="${cLibArgs} --install"
+fi
+
+bash <(curl -s https://github.com/raw/objectbox/objectbox-c/master/download.sh) ${cLibArgs} ${cLibVersion}