Add user-friendly safeguards against running with unmet dependencies.

[plomrogue] / start_server_client_union.sh

diff --git a/start_server_client_union.sh b/start_server_client_union.sh
index 57133aae4c5b7ff28a2534ad9fbede305238d4c2..ad05038c54ff3d3ad4908315260d213d3f1b0181 100755 (executable)
--- a/start_server_client_union.sh
+++ b/start_server_client_union.sh
@@ -3,12 +3,37 @@
 # Abort the script on error.
 set -e
 
+# Don't let any log leftovers from before interfere.
+if [ -e ./log ]
+then
+    rm log
+fi
+
+# Abort if no proper Python version installed.
+test=`command -v python3 | wc -l`
+if [ 1 != $test ]
+then
+    echo "FAILURE:"
+    echo "No python3 installed, but it's needed!"
+    exit 1
+fi
+
+# Give helpful message to players that want to start without compiling first.
+if [ ! -e ./roguelike-client ]
+then
+    echo 'No ./roguelike-client executable found. Try "./redo" first?'
+    false
+fi
+if [ ! -e ./libplomrogue.so ]
+then
+    echo 'No ./libplomrogue.so library found. Try "./redo" first?'
+    false
+fi
+
 # Use shell script's arguments for server and pipe server output to log file.
 # This script's wrapper script will read it out on exit.
 ./roguelike-server "$@" > log 2>&1 &
 
-echo TEST >> log
-
 # Give server some time to start up and exit on error.
 sleep 0.01