From: unknown <Fabien@.(none)>
Date: Fri, 26 Dec 2008 15:57:26 +0000 (+0100)
Subject: rewrote the build and install system, tested on linux and windows
X-Git-Url: https://git.lizzy.rs/?a=commitdiff_plain;h=90ada4a525c82c01b7819ae6a0eebfb519ab84bb;p=metalua.git

rewrote the build and install system, tested on linux and windows
---

diff --git a/src/build-utils/bootstrap.lua b/src/build-utils/bootstrap.lua
new file mode 100644
index 0000000..ba13651
--- /dev/null
+++ b/src/build-utils/bootstrap.lua
@@ -0,0 +1,82 @@
+-- This utility bootstraps the metalua compiler:
+-- * The compiler itself is written partly in lua, partly in metalua.
+-- * This program uses the lua parts of the compiler to compile the metalua parts.
+--
+-- Usage: bootstrap output=<resulting file> inputdir=<source directory> <src_1> ... <src_n>
+--
+
+
+cfg = { inputs = { } }
+for _, a in ipairs(arg) do
+   local var, val = a :match "^(.-)=(.*)"
+   if var then cfg[var] = val else table.insert (cfg.inputs, a) end
+end
+
+-- metalua.mlc doesn't exit yet; this preload manager loads a mockup which is just
+-- sufficient to compile the real mlc.mlua
+package.preload['metalua.mlc'] = function()
+
+   print "Loading fake metalua.mlc module for compiler bootstrapping"
+
+   mlc = { } 
+   mlc.metabugs = false
+
+   function mlc.function_of_ast (ast)
+      local  proto = bytecode.metalua_compile (ast)
+      local  dump  = bytecode.dump_string (proto)
+      local  func  = string.undump(dump) 
+      return func
+   end
+   
+   function mlc.ast_of_luastring (src)
+      local  lx  = mlp.lexer:newstream (src)
+      local  ast = mlp.chunk (lx)
+      return ast
+   end
+   
+   function mlc.function_of_luastring (src)
+      local  ast  = mlc.ast_of_luastring (src)
+      local  func = mlc.function_of_ast(ast)
+      return func
+   end
+
+   function mlc.function_of_luafile (name)
+      local f   = io.open(name, 'r')
+      local src = f:read '*a'
+      f:close()
+      return mlc.function_of_luastring (src, "@"..name)
+   end
+
+   -- don't let require() fork a separate process for *.mlua compilations.
+   package.metalua_nopopen = true
+end
+
+require 'verbose_require'
+require 'metalua.base'
+require 'metalua.bytecode'
+require 'metalua.mlp'
+require 'metalua.package2'
+
+local function compile_file (src_filename)
+   print("Compiling "..src_filename.."... ")
+   local src_file     = io.open (src_filename, 'r')
+   local src          = src_file:read '*a'; src_file:close()
+   local ast          = mlc.ast_of_luastring (src)
+   local proto        = bytecode.metalua_compile (ast, '@'..src_filename)
+   local dump         = bytecode.dump_string (proto)
+   local dst_filename = cfg.output or error "no output file name specified"
+   local dst_file     = io.open (dst_filename, 'wb')
+   dst_file:write(dump)
+   dst_file:close()
+   print("...Wrote "..dst_filename)
+end
+
+if cfg.inputdir then
+   local sep = package.config:sub(1,1)
+   if not cfg.inputdir :match (sep..'$') then cfg.inputdir = cfg.inputdir..sep end
+else
+   cfg.inputdir=""
+end
+
+for _, x in ipairs (cfg.inputs) do compile_file (cfg.inputdir..x) end
+
diff --git a/src/build-utils/precompile.lua b/src/build-utils/precompile.lua
new file mode 100644
index 0000000..957154c
--- /dev/null
+++ b/src/build-utils/precompile.lua
@@ -0,0 +1,27 @@
+-- Compile all files called *.mluam in a directory and its sub-directories,
+-- into their *.luac counterpart.
+--
+-- This script is windows-only, Unices have half-decent shell script languages 
+-- which let you do the same with a find and an xargs.
+
+cfg = { }
+for _, a in ipairs(arg) do
+   local var, val = a :match "^(.-)=(.*)"
+   if var then cfg[var] = val end
+end
+
+if not cfg.command or not cfg.directory then
+   error ("Usage: "..arg[0].." command=<metalua command> directory=<library root>")
+end
+
+local f = io.popen ("dir /S /b " .. cfg.directory)
+for src in f:lines() do
+   local base = src:match "^(.+)%.mlua$"
+   if base then
+      local cmd = cfg.command.." "..src.." -o "..base..".luac"
+      print (cmd)
+      os.execute (cmd)
+   end
+end
+
+
diff --git a/src/make.sh b/src/make.sh
index 7c90869..740202d 100644
--- a/src/make.sh
+++ b/src/make.sh
@@ -10,8 +10,10 @@ BUILD_BIN=${BUILD}/bin
 BUILD_LIB=${BUILD}/lib
 
 # Where to place the final results
-INSTALL_BIN=/usr/local/bin
-INSTALL_LIB=/usr/local/lib/lua/5.1
+# INSTALL_BIN=/usr/local/bin
+# INSTALL_LIB=/usr/local/lib/lua/5.1
+INSTALL_BIN=~/local/bin
+INSTALL_LIB=~/local/lib/lua
 
 # Where to find Lua executables.
 # On many Debian-based systems, those can be installed with "sudo apt-get install lua5.1"
@@ -80,9 +82,10 @@ mkdir -p ${INSTALL_LIB}
 
 cat > ${INSTALL_BIN}/metalua <<EOF
 #!/bin/sh
-export LUA_PATH='?.luac;?.lua;${INSTALL_LIB}/?.luac;${INSTALL_LIB}/?.lua'
-export LUA_MPATH='?.mlua;${INSTALL_LIB}/?.mlua'
-${LUA} ${INSTALL_LIB}/metalua.luac \$*
+METALUA_LIB=${INSTALL_LIB}
+export LUA_PATH="?.luac;?.lua;\\\${METALUA_LIB}/?.luac;\\\${METALUA_LIB}/?.lua"
+export LUA_MPATH="?.mlua;\\\${METALUA_LIB}/?.mlua"
+${LUA} \\\${METALUA_LIB}/metalua.luac \\\$*
 EOF
 
 chmod a+x ${INSTALL_BIN}/metalua