From cf0be2159672e0dae90ad892409b1432940a96c2 Mon Sep 17 00:00:00 2001
From: Kai Vogelgesang <kai@leafbla.de>
Date: Mon, 26 Sep 2022 01:13:11 +0200
Subject: [PATCH] Add lua minifier

---
 Dockerfile     |  3 ++-
 lua/justfile   |  7 ++++---
 lua/minify.lua | 16 ++++++++++++++++
 3 files changed, 22 insertions(+), 4 deletions(-)
 create mode 100644 lua/minify.lua

diff --git a/Dockerfile b/Dockerfile
index d24b469..6f63fde 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM archlinux:base-devel AS builder
 
-RUN pacman -Syu npm luarocks just --noconfirm
+RUN pacman -Syu npm lua luarocks just --noconfirm
 
 # build frontend
 WORKDIR /frontend
@@ -11,6 +11,7 @@ RUN npm install && npm run build
 WORKDIR /lua
 COPY lua .
 RUN luarocks install tl && \
+    luarocks install dumbluaparser && \
     eval $(luarocks path) && \
     just build
 
diff --git a/lua/justfile b/lua/justfile
index cfe7f6d..3489553 100644
--- a/lua/justfile
+++ b/lua/justfile
@@ -1,17 +1,18 @@
 default:
     @just --list
 
-lua_files := `find . -type f -name "*.lua" ! -path './out/*' ! -name tlconfig.lua -printf "%p "`
+lua_files := `find . -type f -name "*.lua" ! -path './out/*' ! -name tlconfig.lua ! -name minify.lua -printf "%p "`
 teal_files := `find . -type f -name "*.tl" ! -name '*.d.tl' -printf "%p "`
 
 build:
     mkdir -p out
     for file in {{lua_files}}; do \
-        cp $file out; \
+        lua minify.lua $file; \
     done
     for file in {{teal_files}}; do \
       tl gen $file; \
-      mv ${file%.tl}.lua out; \
+      lua minify.lua ${file%.tl}.lua; \
+      rm ${file%.tl}.lua; \
     done
 
 alias b := build
diff --git a/lua/minify.lua b/lua/minify.lua
new file mode 100644
index 0000000..95fc883
--- /dev/null
+++ b/lua/minify.lua
@@ -0,0 +1,16 @@
+local args = { ... }
+local filename = args[1]
+print(('filename: "%s"'):format(filename))
+
+local parser = require("dumbParser")
+
+local tokens = parser.tokenizeFile(filename)
+local ast    = parser.parse(tokens)
+
+parser.minify(ast, true)
+
+local output = parser.toLua(ast)
+
+local f = io.open("out/"..filename, "w")
+f:write(output)
+f:close()
\ No newline at end of file