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#!/usr/bin/env bash
# Build, install and hot-reload the pane-finder plugin.
#
# Lives in the sl0ppij (zellij fork) checkout and path-depends on its
# zellij-tile, so the plugin API always matches the binary built beside it.
#
# NOTE: zellij caches a plugin's compiled module in the *server's memory*, keyed
# by plugin path, for the lifetime of the session. Overwriting the .wasm on disk
# and re-launching (even after closing the pane) keeps running the OLD build.
# Only `start-or-reload-plugin` (or a brand new session) picks up a new build,
# which is why this script does it for every running session.
set -euo pipefail
SRC_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
DEST="$HOME/.config/zellij/plugins/pane-finder.wasm"
URL="file:$DEST"
cd "$SRC_DIR"
cargo build --release --target wasm32-wasip1
# NOT "$SRC_DIR/target": the zellij checkout's .cargo/config.toml sets a shared
# build.target-dir, so artifacts land in the repo's target dir rather than this
# crate's. Ask cargo where they actually went instead of guessing.
TARGET_DIR="$(cargo metadata --format-version 1 --no-deps \
| python3 -c 'import json,sys; print(json.load(sys.stdin)["target_directory"])')"
WASM="$TARGET_DIR/wasm32-wasip1/release/zj-pane-finder.wasm"
[ -f "$WASM" ] || { echo "build produced no wasm at $WASM" >&2; exit 1; }
mkdir -p "$(dirname "$DEST")"
cp "$WASM" "$DEST"
echo "installed -> $DEST"
# hot-reload in every live session
# `--short` also lists dead sessions, so parse the long form and drop EXITED ones
mapfile -t sessions < <(zellij list-sessions 2>/dev/null \
| sed 's/\x1b\[[0-9;]*m//g' \
| grep -v EXITED \
| awk 'NF {print $1}' || true)
if [ "${#sessions[@]}" -eq 0 ]; then
echo "no running sessions; new sessions will pick this up automatically"
exit 0
fi
for s in "${sessions[@]}"; do
[ -z "$s" ] && continue
if zellij -s "$s" action start-or-reload-plugin "$URL" >/dev/null 2>&1; then
echo "reloaded in session: $s"
else
echo "could not reload in session: $s (start a new session instead)"
fi
done
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