Setup script cleanup for Linux

tools/lib/setup-common.sh

@@ -2,26 +2,36 @@
 script_dir="$(dirname "$(readlink -f "$0")")"
 
 # Import common paths
-source ./common-paths.sh
+source ${script_dir}/common-paths.sh
+
+IN_VENV=$(python -c 'import sys; print(sys.prefix != getattr(sys, "base_prefix", sys.prefix))')
+
+if [ "${IN_VENV}" = "True" ]; then
+    # In a virtual environment, don't use --user
+    PIP_FLAGS="--upgrade"
+else
+    # Not in a virtual environment, use --user
+    PIP_FLAGS="--upgrade --user"
+fi
 
 # Install Python packages
-pip install --upgrade --user ${script_dir}/../../requirements.txt
+pip install ${PIP_FLAGS} -r ${script_dir}/../../requirements.txt
 
 if [[ -n "${build_type}" ]]; then
     # Install Conan profile and packages
-    ./setup-conan.sh
+    ${script_dir}/setup-conan.sh
 else
     # Install Conan profile and debug packages
     export build_type=Debug
-    ./setup-conan.sh
+    ${script_dir}/setup-conan.sh
 
     # Install Conan profile and release packages
     export build_type=Release
-    ./setup-conan.sh
+    ${script_dir}/setup-conan.sh
 
     # Unset build_type
     unset build_type
 fi
 
 # Run CMake Configure
-./run-cmake-configure.sh
+${script_dir}/run-cmake-configure.sh