Merge branch 'main' into gmarchio-main-20240222

.github/workflows/key4hep-build.yaml

@@ -0,0 +1,23 @@
+name: Key4hep build
+
+on:
+  push:
+    branches:
+    - main
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        build_type: ["release", "nightly"]
+        image: ["alma9", "ubuntu22", "centos7"]
+      fail-fast: false
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: key4hep/key4hep-actions/key4hep-build@main
+      with:
+        build_type: ${{ matrix.build_type }}
+        image: ${{ matrix.image }}

README.md

@@ -1,16 +1,33 @@
 # k4RecCalorimeter - Key4hep Framework Components for Calorimeter Reconstruction
 
-
-## Dependencies
-
-All dependencies can be set up from the Key4hep nightly builds (on lxplus / Centos7 machines with CVMFS)
+The components are available from the Key4hep stack on machines with CVMFS.
 
 ```
 source /cvmfs/sw-nightlies.hsf.org/key4hep/setup.sh
 ```
 
+## Dependencies
+
+* Gaudi
+* ROOT
 * EDM4HEP
 * k4FWCore
 * DD4hep
 * k4geo
+
 * ONNXRuntime
+
+
+## Building
+
+After fetching the repository, do
+```
+source /cvmfs/sw.hsf.org/key4hep/setup.sh
+mkdir build install
+cd build
+cmake -DCMAKE_INSTALL_PREFIX=install ..
+make -j4
+make install
+cd ..
+k4_local_repo  # will update all necessary environment variables
+```