A gist example of a haxe build file.

compile.hxml

# Haxe Library
-lib LunaTea


-cp src
# JS Version 
-D js-es=6

# Enable/Disable console.log -- tracing with the below line
# --no-traces

-dce full

# Static Code Analysis For Removing  Unnecessary Code
-D analyzer-optimize 

# Haxe Source Map
--debug
# --no-inline
# --no-opt
# -D keep_inline_positions

# RM Version for Conditional Compilation
# -D compileMV

# Note you can call an hxml file inside an hxml file for build purposes.
# For Compiling Separate JavaScript Files

# --macro macros.MacroTools.includeJsLib("./src/Params.js")

# --main Main
--each

--next
lunavn.hxml

--next
lunalog.hxml

--next 
lunavnsave.hxml

--next
lunavnload.hxml

--cmd 'npx napkin'
--cmd haxe -D gamePath=../games/LunaTechsMZ --run CleanJs