Merge pull request #154 from anacrolix/patch-1

Update progress.sh

progress.sh

@@ -1,37 +1,35 @@
 #!/bin/bash
 
+set -eu
+
 # Load Environment Variables
 if [ -f .env ]; then
   export $(cat .env | grep -v '#' | sed 's/\r$//' | awk '/=/ {print $1}' )
 fi
 
 export ETH_RPC_URL=http://localhost:${PORT__OP_GETH_HTTP:-9993}
+# Cast is provided by Foundry: https://getfoundry.sh/.
+# Run `pnpm install:foundry` in the optimism repo root.
 CHAIN_ID=`cast chain-id`
 echo Chain ID: $CHAIN_ID
-echo Please wait
+echo Sampling, please wait
 
 if [ $CHAIN_ID -eq 10 ]; then
   L2_URL=https://mainnet.optimism.io
 fi
 
-
-if [ $CHAIN_ID -eq 420 ]; then
-  L2_URL=https://goerli.optimism.io
-fi
-
-
 if [ $CHAIN_ID -eq 11155420 ]; then
   L2_URL=https://sepolia.optimism.io
 fi
 
 T0=`cast block-number --rpc-url $ETH_RPC_URL` ; sleep 10 ; T1=`cast block-number --rpc-url $ETH_RPC_URL`
-PER_MIN=`expr $T1 - $T0`
-PER_MIN=`expr $PER_MIN \* 6`
+PER_MIN=$(($T1 - $T0))
+PER_MIN=$(($PER_MIN * 6))
 echo Blocks per minute: $PER_MIN
 
 
 if [ $PER_MIN -eq 0 ]; then
-    echo Not synching
+    echo Not syncing
     exit;
 fi