Add Sherpa3 support

setup/install_sherpa3.sh

@@ -0,0 +1,58 @@
+#!/bin/bash
+
+# determine the directy of this file
+if [ -n "$ZSH_VERSION" ]; then
+    this_file="${(%):-%x}"
+else
+    this_file="${BASH_SOURCE[0]}"
+fi
+this_dir="$( cd "$( dirname "$this_file" )" && pwd )"
+
+source_lcg_stack() {
+    # Check OS and source Sherpa with dependencies from according LCG Stack
+    base=/cvmfs/sft.cern.ch/lcg/releases
+    view_base=/cvmfs/sft.cern.ch/lcg/views
+    LCG=LCG_106
+    local prefix
+    source "$this_dir/os-version.sh"
+    if [[ "$distro" == "RedHatEnterprise" || "$distro" == "Alma" || "$distro" == "Rocky" ]]; then
+        if [[ ${os_version:0:1} == "9" ]]; then
+            prefix=x86_64-el9
+        fi
+    fi
+    if [[ -z "$prefix" ]]; then
+        echo "Sherpa3 with LCG Stack $LCG not set up and/or tested for $distro $os_version"
+        return 1
+    fi
+    platform=${prefix}-gcc13-opt
+    local lcg_path=$view_base/$LCG/$platform/setup.sh
+    echo "Sourcing LCG Stack from $lcg_path"
+    # shellcheck disable=SC1090
+    source "$lcg_path"
+
+    # set OpenLoops prefix
+    export OL_PREFIX=$base/$LCG/MCGenerators/openloops/2.1.2/$platform
+}
+
+install_sherpa() {
+    source_lcg_stack
+    INSTALL_DIR="$this_dir/../software/sherpa3.0"
+    mkdir -p "$INSTALL_DIR"
+    BUILD_DIR="$this_dir/../src/"
+    mkdir -p "$BUILD_DIR"
+
+    if [ ! -d "$BUILD_DIR/sherpa" ]; then
+        git clone -b "rel-3-0-x" https://gitlab.com/sherpa-team/sherpa.git "$BUILD_DIR/sherpa"
+    fi
+    cmake --fresh -S "$BUILD_DIR/sherpa" -B "$BUILD_DIR/sherpa" \
+        -DSHERPA_ENABLE_INSTALL_LIBZIP=ON \
+        -DSHERPA_ENABLE_MPI=ON \
+        -DSHERPA_ENABLE_HEPMC3=ON \
+        -DSHERPA_ENABLE_RIVET=ON \
+        -DOPENLOOPS_PREFIX="$OL_PREFIX" \
+        -DSHERPA_ENABLE_OPENLOOPS=ON
+    cmake --build "$BUILD_DIR/sherpa" -j 8
+    cmake --install "$BUILD_DIR/sherpa" --prefix "$INSTALL_DIR"
+}
+
+install_sherpa "$@"

setup/setup_sherpa3.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+
+# determine the directy of this file
+if [ -n "$ZSH_VERSION" ]; then
+    this_file="${(%):-%x}"
+else
+    this_file="${BASH_SOURCE[0]}"
+fi
+this_dir="$( cd "$( dirname "$this_file" )" && pwd )"
+
+source_lcg_stack() {
+    # Check OS and source Sherpa with dependencies from according LCG Stack
+    base=/cvmfs/sft.cern.ch/lcg/releases
+    view_base=/cvmfs/sft.cern.ch/lcg/views
+    LCG=LCG_106
+    local prefix
+    source "$this_dir/os-version.sh"
+    if [[ "$distro" == "RedHatEnterprise" || "$distro" == "Alma" || "$distro" == "Rocky" ]]; then
+        if [[ ${os_version:0:1} == "9" ]]; then
+            prefix=x86_64-el9
+        fi
+    fi
+    if [[ -z "$prefix" ]]; then
+        echo "Sherpa3 with LCG Stack $LCG not set up and/or tested for $distro $os_version"
+        return 1
+    fi
+    platform=${prefix}-gcc13-opt
+    local lcg_path=$view_base/$LCG/$platform/setup.sh
+    echo "Sourcing LCG Stack from $lcg_path"
+    # shellcheck disable=SC1090
+    source "$lcg_path"
+
+    # set OpenLoops prefix
+    export OL_PREFIX=$base/$LCG/MCGenerators/openloops/2.1.2/$platform
+}
+
+source_sherpa() {
+    INSTALL_DIR="$this_dir/../software/sherpa3.0"
+    if [[ ! -d "$INSTALL_DIR" ]]; then
+        echo "Error: Sherpa installation directory $INSTALL_DIR does not exist. Installing..."
+        source "$this_dir/install_sherpa3.sh"
+    fi
+    source_lcg_stack
+    export SHERPA_INCLUDE_PATH=$INSTALL_DIR/include/SHERPA-MC
+    export SHERPA_SHARE_PATH=$INSTALL_DIR/share/SHERPA-MC
+    export SHERPA_LIBRARY_PATH=$INSTALL_DIR/lib64/SHERPA-MC
+    export LD_LIBRARY_PATH=$SHERPA_LIBRARY_PATH:$LD_LIBRARY_PATH
+    export PATH=$INSTALL_DIR/bin:$PATH
+}
+
+source_sherpa "$@"
+Sherpa --version