etc: DependencyInstaller: Add option for constant build path to incre…

…ase build reproducibility

Signed-off-by: Eryk Szpotanski <eszpotanski@antmicro.com>

etc/DependencyInstaller.sh

@@ -721,6 +721,9 @@ Usage: $0
                                 # Installs dependencies required to run CI
        $0 -nocert
                                 # Disable certificate checks
+       $0 -constant-build-dir
+                                # Use constant build directory, instead of
+                                #    random one.
 
 EOF
     exit "${1:-1}"
@@ -776,6 +779,14 @@ while [ "$#" -gt 0 ]; do
             export PREFIX="${HOME}/.local"
             export isLocal="true"
             ;;
+        -constant-build-dir)
+            baseDir="/tmp/DependencyInstaller-OpenROAD"
+            if [[ -d "$baseDir" ]]; then
+                echo "INFO: removing old building directory $baseDir"
+                rm -r "$baseDir"
+            fi
+            mkdir -p "$baseDir"
+            ;;
         -prefix=*)
             if [[ ! -z ${PREFIX} ]]; then
                 echo "WARNING: previous argument -local will be overwritten with -prefix"