Use GitHub Actions instead of Travis CI

Signed-off-by: Stefan Marr <[email protected]>

Author: smarr

.github/workflows/ci.yml

@@ -0,0 +1,59 @@
+name: Tests
+
+on: [push, pull_request]
+
+jobs:
+  test_soms:
+    runs-on: ubuntu-22.04
+    continue-on-error: true
+    strategy:
+      fail-fast: false # we want all jobs to run, because they may fail independently
+      matrix:
+        compiler: [clang, gcc]
+        gc: [GENERATIONAL, MARK_SWEEP, COPYING]
+        integers:
+          - "-DUSE_TAGGING=true"
+          - "-DUSE_TAGGING=false -DCACHE_INTEGER=true"
+          - "-DUSE_TAGGING=false -DCACHE_INTEGER=false"
+
+    steps:
+      - name: Checkout SOM Repository
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Install Apt Packages
+        run: |
+          sudo apt-get install libcppunit-dev
+
+      - name: Build SOM VM
+        run: |
+          if [ "${{ matrix.compiler }}" = "clang" ]
+          then
+            export CC=clang
+            export CXX=clang++
+          else
+            export CC=gcc
+            export CXX=g++
+          fi
+          echo $CC $CXX
+          echo cmake . -DGC_TYPE=${{ matrix.gc}} ${{ matrix.integers }}
+          mkdir cmake-build
+          cd cmake-build
+          cmake .. -DGC_TYPE=${{ matrix.gc}} ${{ matrix.integers }}
+          make
+
+      - name: Run Unit Tests
+        run: |
+          cd cmake-build
+          ./unittests -cp ../Smalltalk:../TestSuite/BasicInterpreterTests ../Examples/Hello.som
+
+      - name: Run Tests on SOM VM
+        run: |
+          cd cmake-build
+          ./SOM++ -cp ../Smalltalk ../TestSuite/TestHarness.som
+
+      - name: Test SomSom
+        run: |
+          cd cmake-build
+          ./SOM++ -cp ../Smalltalk:../TestSuite:../core-lib/SomSom/src/compiler:../core-lib/SomSom/src/interpreter:../core-lib/SomSom/src/primitives:../core-lib/SomSom/src/vm:../core-lib/SomSom/src/vmobjects ../core-lib/SomSom/tests/SomSomTests.som

.travis.yml

@@ -27,17 +27,19 @@ implementation of the SOM standard library and a number of examples. Please see
 the [main project page][SOMst] for links to the VM implementations.
 
 
-SOM++ can be built with Make:
+SOM++ uses CMake for building:
 
+    $ mkdir cmake-build && cd cmake-build
+    $ cmake ..
     $ make
 
 Afterwards, the tests can be executed with:
 
-    $ ./SOM++ -cp Smalltalk TestSuite/TestHarness.som
+    $ ./SOM++ -cp ../Smalltalk ../TestSuite/TestHarness.som
 
 A simple Hello World program is executed with:
 
-    $ ./SOM++ -cp Smalltalk Examples/Hello.som
+    $ ./SOM++ -cp ../Smalltalk ../Examples/Hello.som
 
 **Note**: On Linux, the library search path needs to be adapted:
 
@@ -64,20 +66,21 @@ Tagged integers:
 
     default: off
     option name: TAGGING
-    example: make TAGGING=true
+    example: cmake .. -DUSE_TAGGING=true
 
 Integer caching:
 
     default: off
     option name: INT_CACHE
-    example: make INT_CACHE=true
+    example: cmake .. -DCACHE_INTEGER=true
+
 
 Build Status
 ------------
 
-Thanks to Travis CI, all commits of this repository are tested.
-The current build status is: [![Build Status](https://travis-ci.org/SOM-st/SOMpp.png?branch=master)](https://travis-ci.org/SOM-st/SOMpp/)
+Thanks to GitHub Actions, all commits of this repository are tested.
+The current build status is: [![Build Status](https://github.com/SOM-st/SOMpp/actions/workflows/ci.yml/badge.svg)](https://github.com/SOM-st/SOMpp/actions/workflows/ci.yml)
 
  [SOM]: http://www.hpi.uni-potsdam.de/hirschfeld/projects/som/
- [SOMst]: https://travis-ci.org/SOM-st/
+ [SOMst]: https://som-st.github.io