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#!/usr/bin/env bash
set -e
ROOT_DIR="$(cd -- "$( dirname -- "${BASH_SOURCE[0]}" )/.." &> /dev/null && pwd)"
BIN_DIR="$ROOT_DIR/bin"
MCP_DIR="$ROOT_DIR/cache/__mcp__"
MCP_JSON_PATH="$ROOT_DIR/mcp.json"
FUNCTIONS_JSON_PATH="$ROOT_DIR/functions.json"
MCP_BRIDGE_PORT="${MCP_BRIDGE_PORT:-8808}"
# @cmd Start/Restart mcp bridge server
start() {
if [[ ! -f "$MCP_JSON_PATH" ]]; then
_die "error: not found mcp.json"
fi
stop
mkdir -p "$MCP_DIR"
index_js="$ROOT_DIR/mcp/bridge/index.js"
llm_functions_dir="$ROOT_DIR"
if _is_win; then
index_js="$(cygpath -w "$index_js")"
llm_functions_dir="$(cygpath -w "$llm_functions_dir")"
fi
echo "Run MCP Bridge server"
nohup node "$index_js" "$llm_functions_dir" > "$MCP_DIR/mcp-bridge.log" 2>&1 &
wait-for-server
echo "Merge MCP tools into functions.json"
merge-functions > "$MCP_DIR/functions.json"
cp -f "$MCP_DIR/functions.json" "$FUNCTIONS_JSON_PATH"
build-bin
}
# @cmd Stop mcp bridge server
stop() {
pid="$(get-server-pid)"
if [[ -n "$pid" ]]; then
if _is_win; then
taskkill /PID "$pid" /F > /dev/null 2>&1 || true
else
kill -9 "$pid" > /dev/null 2>&1 || true
fi
fi
mkdir -p "$MCP_DIR"
unmerge-functions > "$MCP_DIR/functions.original.json"
cp -f "$MCP_DIR/functions.original.json" "$FUNCTIONS_JSON_PATH"
}
# @cmd Call mcp tool
# @arg tool![`_choice_tool`] The tool name
# @arg json The json data
call() {
if [[ -z "$argc_json" ]]; then
declaration="$(build-declarations | jq --arg tool "$argc_tool" -r '.[] | select(.name == $tool)')"
if [[ -n "$declaration" ]]; then
_ask_json_data "$declaration"
fi
fi
if [[ -z "$argc_json" ]]; then
_die "error: no JSON data"
fi
bash "$ROOT_DIR/scripts/run-mcp-tool.sh" "$argc_tool" "$argc_json"
}
# @cmd Show logs
# @flag -f --follow Follow mode
logs() {
args=""
if [[ -n "$argc_follow" ]]; then
args="$args -f"
fi
if [[ -f "$MCP_DIR/mcp-bridge.log" ]]; then
tail $args "$MCP_DIR/mcp-bridge.log"
fi
}
# @cmd Build tools to bin
build-bin() {
tools=( $(build-declarations | jq -r '.[].name') )
for tool in "${tools[@]}"; do
if _is_win; then
bin_file="$BIN_DIR/$tool.cmd"
_build_win_shim > "$bin_file"
else
bin_file="$BIN_DIR/$tool"
ln -s -f "$ROOT_DIR/scripts/run-mcp-tool.sh" "$bin_file"
fi
echo "Build bin/$tool"
done
}
# @cmd Merge mcp tools into functions.json
merge-functions() {
jq --argjson json1 "$(unmerge-functions)" --argjson json2 "$(build-declarations)" -n '($json1 + $json2)'
}
# @cmd Unmerge mcp tools from functions.json
unmerge-functions() {
functions="[]"
if [[ -f "$FUNCTIONS_JSON_PATH" ]]; then
functions="$(cat "$FUNCTIONS_JSON_PATH")"
fi
printf "%s" "$functions" | jq 'map(select(has("mcp") | not))'
}
# @cmd Build tools to bin
build-declarations() {
curl -sS http://localhost:$MCP_BRIDGE_PORT/tools | jq '.[] |= . + {mcp: true}'
}
# @cmd Wait for mcp bridge server to ready
wait-for-server() {
while true; do
if [[ "$(curl -fsS http://localhost:$MCP_BRIDGE_PORT/health 2>&1)" == "OK" ]]; then
break;
fi
sleep 1
done
}
# @cmd
get-server-pid() {
curl -fsSL http://localhost:$MCP_BRIDGE_PORT/pid 2>/dev/null || true
}
_ask_json_data() {
declaration="$1"
echo 'Missing the JSON data but here are its properties:'
echo "$declaration" | ./scripts/declarations-util.sh pretty-print | sed -n '2,$s/^/>/p'
echo 'Generate placeholder data:'
data="$(echo "$declaration" | _declarations_json_data)"
echo "> $data"
read -e -r -p 'JSON data (Press ENTER to use placeholder): ' res
if [[ -z "$res" ]]; then
argc_json="$data"
else
argc_json="$res"
fi
}
_declarations_json_data() {
./scripts/declarations-util.sh generate-json | tail -n +2
}
_build_win_shim() {
run="\"$(argc --argc-shell-path)\" --noprofile --norc"
cat <<-EOF
@echo off
setlocal
set "bin_dir=%~dp0"
for %%i in ("%bin_dir:~0,-1%") do set "script_dir=%%~dpi"
set "script_name=%~n0"
$run "%script_dir%scripts\run-mcp-tool.sh" "%script_name%" %*
EOF
}
_is_win() {
if [[ "$OS" == "Windows_NT" ]]; then
return 0
else
return 1
fi
}
_choice_tool() {
build-declarations | jq -r '.[].name'
}
_die() {
echo "$*" >&2
exit 1
}
# See more details at https://github.com/sigoden/argc
eval "$(argc --argc-eval "$0" "$@")"
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