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#!/usr/bin/env bash
# Usage: deckdebug.sh DECKIP:8081
# Dependencies: websocat jq curl chromium
# https://jackson.dev/post/a-portable-nix-shell-shebang/
if [ -z "$INSIDE_NIX_RANDOMSTRING" ] && command -v nix &> /dev/null; then
# If the user has nix, relaunch in nix shell with dependencies added
INSIDE_NIX_RANDOMSTRING=1 nix shell \
nixpkgs#websocat \
nixpkgs#jq \
nixpkgs#curl \
--command "$0" "$@"
exit $?
fi
chromium --remote-debugging-port=9222 &
sleep 2
ADDR=$1
LOCAL=localhost:9222
LOCALTARGETS=$(curl -s http://$LOCAL/json/list)
LOCALTARGET=$(jq -r '.[] | select(.title=="New Tab") | .id' <<< "$LOCALTARGETS")
echo startup tab $LOCALTARGET
TARGET=0
while :; do
NEWTARGET=$(curl -s http://$ADDR/json/list | jq -r '.[] | select(.title=="SharedJSContext") | .id')
if [[ $NEWTARGET != "" ]] && [[ $NEWTARGET != $TARGET ]]; then
echo found new tab at $NEWTARGET
TARGET=$NEWTARGET
TARGETURL="http://$ADDR/devtools/inspector.html?ws=$ADDR/devtools/page/$TARGET"
LOCALTARGET=$(echo '{"id": 1, "method": "Target.createTarget", "params": {"background": true, "url": "'$TARGETURL'"}}
{"id": 2, "method": "Target.closeTarget", "params": {"targetId": "'$LOCALTARGET'"}}' \
| websocat ws://$LOCAL/devtools/page/$LOCALTARGET \
| jq -r '.result.targetId')
echo started devtools at $LOCALTARGET
fi
sleep 5
done
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