marfrit/lmcp
0
0
Fork 0
Code Issues 3 Pull Requests Actions Packages Projects Releases 1 Wiki Activity

scripts/lmcp-install-macos.sh: fix for real-world Homebrew

Browse Source 
Original draft assumed `brew install lua luasocket` works. It doesn't:
luasocket isn't a brew formula (install via luarocks), and default `lua`
is 5.5 while the rest of the fleet is on 5.4. Fix tested on riemann
(Intel Mac, macOS 14.8.3):

- Pin to lua@5.4 (keg-only brew formula) — matches fleet library paths.
- Install luasocket via luarocks into the user-local rocks tree.
- Source brew shellenv ourselves so non-login bash shells can find brew.
- Bake LUA_PATH / LUA_CPATH into the LaunchAgent plist so the service
  resolves `require 'socket'` from ~/.luarocks/.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Markus Fritsche
2026-04-18 12:37:05 +00:00
parent 2f2c1f3036
commit c5884d6a97
1 changed files with 57 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files
scripts/lmcp-install-macos.sh
+57 -29
View File
@@ -1,10 +1,11 @@
#!/bin/bash #!/bin/bash
# Install lmcp on macOS via Homebrew. # Install lmcp on macOS via Homebrew.
# #
# Idempotent. Pulls lua + luasocket from brew, copies lmcp library files # Pins to lua@5.4 (keg-only brew formula) to keep library paths aligned
# into brew's share/lua/5.4/ tree, mints a Bearer token (or reuses an # with the rest of the fleet (Arch/ALARM, Debian). Installs luasocket via
# existing one at $(brew --prefix)/etc/lmcp/token), installs a LaunchAgent, # luarocks into the user-local rocks tree (~/.luarocks/) and bakes the
# starts the service, and prints the token for Claude Code MCP config. # required LUA_PATH / LUA_CPATH into the LaunchAgent plist so the service
# can `require 'socket'`.
# #
# Usage (from lmcp repo root): # Usage (from lmcp repo root):
# ./scripts/lmcp-install-macos.sh # ./scripts/lmcp-install-macos.sh
@@ -16,37 +17,55 @@
set -euo pipefail set -euo pipefail
PREFIX=$(brew --prefix) # brew is only on PATH in login shells by default; source its env explicitly
REPO=${REPO:-$(cd "$(dirname "$0")/.." && pwd)} # so this works under a plain non-login bash too.
LABEL="de.reauktion.marfrit.lmcp" if ! command -v brew >/dev/null 2>&1; then
PLIST="$HOME/Library/LaunchAgents/$LABEL.plist" for candidate in /opt/homebrew/bin/brew /usr/local/bin/brew; do
TOKEN_FILE="$PREFIX/etc/lmcp/token" if [ -x "$candidate" ]; then
PORT="${LMCP_PORT:-8080}" eval "$("$candidate" shellenv)"
NAME="${LMCP_NAME:-$(hostname -s)-tools}" break
fi
done
fi
command -v brew >/dev/null 2>&1 || { echo "error: Homebrew not found"; exit 1; }
REPO=${REPO:-$(cd "$(dirname "$0")/.." && pwd)}
for f in lmcp.lua json.lua server.lua example_server.lua; do for f in lmcp.lua json.lua server.lua example_server.lua; do
[ -f "$REPO/$f" ] || { echo "error: $REPO/$f not found — run from lmcp repo root or set REPO="; exit 1; } [ -f "$REPO/$f" ] || { echo "error: $REPO/$f not found — run from lmcp repo root or set REPO="; exit 1; }
done done
echo "==> brew install lua + luasocket" echo "==> brew install lua@5.4 luarocks"
brew install --quiet lua luasocket brew install --quiet lua@5.4 luarocks
LUA="$PREFIX/bin/lua" LUA54_PREFIX=$(brew --prefix lua@5.4)
[ -x "$LUA" ] || { echo "error: $LUA not executable after brew install"; exit 1; } LUA54=$LUA54_PREFIX/bin/lua5.4
BREW_PREFIX=$(brew --prefix)
[ -x "$LUA54" ] || { echo "error: $LUA54 missing after brew install"; exit 1; }
echo "==> install library files into $PREFIX/share/lua/5.4/" echo "==> luarocks install luasocket (user-local, pinned to lua@5.4)"
install -d "$PREFIX/share/lua/5.4" luarocks --lua-version 5.4 --lua-dir "$LUA54_PREFIX" install --local luasocket
install -m 644 "$REPO/lmcp.lua" "$PREFIX/share/lua/5.4/lmcp.lua"
install -m 644 "$REPO/json.lua" "$PREFIX/share/lua/5.4/json.lua"
install -m 644 "$REPO/server.lua" "$PREFIX/share/lua/5.4/server.lua"
install -m 755 "$REPO/example_server.lua" "$PREFIX/bin/lmcp-example"
# Token: retain existing, otherwise mint 32 bytes of hex. LR_PATH=$(luarocks --lua-version 5.4 --lua-dir "$LUA54_PREFIX" path --lr-path)
LR_CPATH=$(luarocks --lua-version 5.4 --lua-dir "$LUA54_PREFIX" path --lr-cpath)
DEFAULT_LUA_P="$BREW_PREFIX/share/lua/5.4/?.lua;$BREW_PREFIX/share/lua/5.4/?/init.lua;$BREW_PREFIX/lib/lua/5.4/?.lua;$BREW_PREFIX/lib/lua/5.4/?/init.lua;./?.lua;./?/init.lua"
DEFAULT_LUA_CP="$BREW_PREFIX/lib/lua/5.4/?.so;./?.so"
FULL_LUA_P="$DEFAULT_LUA_P;$LR_PATH"
FULL_LUA_CP="$DEFAULT_LUA_CP;$LR_CPATH"
echo "==> install library files into $BREW_PREFIX/share/lua/5.4/"
install -d "$BREW_PREFIX/share/lua/5.4"
install -m 644 "$REPO/lmcp.lua" "$BREW_PREFIX/share/lua/5.4/lmcp.lua"
install -m 644 "$REPO/json.lua" "$BREW_PREFIX/share/lua/5.4/json.lua"
install -m 644 "$REPO/server.lua" "$BREW_PREFIX/share/lua/5.4/server.lua"
install -m 755 "$REPO/example_server.lua" "$BREW_PREFIX/bin/lmcp-example"
# Token: retain existing, mint new otherwise
TOKEN_FILE="$BREW_PREFIX/etc/lmcp/token"
install -d -m 755 "$BREW_PREFIX/etc/lmcp"
if [ -r "$TOKEN_FILE" ]; then if [ -r "$TOKEN_FILE" ]; then
TOKEN=$(cat "$TOKEN_FILE") TOKEN=$(cat "$TOKEN_FILE")
echo "==> reusing token from $TOKEN_FILE" echo "==> reusing token from $TOKEN_FILE"
else else
install -d -m 700 "$(dirname "$TOKEN_FILE")"
TOKEN=$(openssl rand -hex 32) TOKEN=$(openssl rand -hex 32)
umask 077 umask 077
printf '%s\n' "$TOKEN" > "$TOKEN_FILE" printf '%s\n' "$TOKEN" > "$TOKEN_FILE"
@@ -54,6 +73,11 @@ else
echo "==> minted new token, stored at $TOKEN_FILE (0600)" echo "==> minted new token, stored at $TOKEN_FILE (0600)"
fi fi
LABEL="de.reauktion.marfrit.lmcp"
PLIST="$HOME/Library/LaunchAgents/$LABEL.plist"
PORT="${LMCP_PORT:-8080}"
NAME="${LMCP_NAME:-$(hostname -s)-tools}"
echo "==> write LaunchAgent $PLIST" echo "==> write LaunchAgent $PLIST"
mkdir -p "$HOME/Library/LaunchAgents" mkdir -p "$HOME/Library/LaunchAgents"
cat > "$PLIST" <<PLIST cat > "$PLIST" <<PLIST
@@ -65,8 +89,8 @@ cat > "$PLIST" <<PLIST
<string>$LABEL</string> <string>$LABEL</string>
<key>ProgramArguments</key> <key>ProgramArguments</key>
<array> <array>
<string>$LUA</string> <string>$LUA54</string>
<string>$PREFIX/share/lua/5.4/server.lua</string> <string>$BREW_PREFIX/share/lua/5.4/server.lua</string>
</array> </array>
<key>EnvironmentVariables</key> <key>EnvironmentVariables</key>
<dict> <dict>
@@ -76,6 +100,10 @@ cat > "$PLIST" <<PLIST
<string>$NAME</string> <string>$NAME</string>
<key>LMCP_TOKEN</key> <key>LMCP_TOKEN</key>
<string>$TOKEN</string> <string>$TOKEN</string>
<key>LUA_PATH</key>
<string>$FULL_LUA_P</string>
<key>LUA_CPATH</key>
<string>$FULL_LUA_CP</string>
</dict> </dict>
<key>RunAtLoad</key> <key>RunAtLoad</key>
<true/> <true/>
@@ -94,12 +122,12 @@ echo "==> (re)load LaunchAgent"
launchctl unload "$PLIST" 2>/dev/null || true launchctl unload "$PLIST" 2>/dev/null || true
launchctl load "$PLIST" launchctl load "$PLIST"
sleep 1 sleep 2
echo "==> smoke test (unauth expected 401, Bearer expected 200)" echo "==> smoke test (unauth expected 401, Bearer expected 200)"
unauth=$(curl -s -o /dev/null -w '%{http_code}' -X POST "http://127.0.0.1:$PORT/mcp" \ unauth=$(curl -s -o /dev/null -w '%{http_code}' --max-time 3 -X POST "http://127.0.0.1:$PORT/mcp" \
-H 'Content-Type: application/json' \ -H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' || echo "000") -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' || echo "000")
auth=$(curl -s -X POST "http://127.0.0.1:$PORT/mcp" \ auth=$(curl -s --max-time 3 -X POST "http://127.0.0.1:$PORT/mcp" \
-H "Authorization: Bearer $TOKEN" \ -H "Authorization: Bearer $TOKEN" \
-H 'Content-Type: application/json' \ -H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' || true) -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' || true)
@@ -121,7 +149,7 @@ Add to Claude Code ~/.claude.json on the client machine:
"$NAME": { "$NAME": {
"type": "http", "type": "http",
"url": "http://$(hostname -s).local:$PORT/mcp", "url": "http://$(hostname -s).fritz.box:$PORT/mcp",
"headers": { "Authorization": "Bearer $TOKEN" } "headers": { "Authorization": "Bearer $TOKEN" }
} }