Switch to lua build script

.gitignore

@@ -1,4 +1,5 @@
 bin
+/a
 a.out
 *.a
 *.so

build.lua

@@ -0,0 +1,152 @@
+#!/usr/bin/env lua
+
+local path = require 'path'
+local argparse = require 'argparse'
+
+-- Parse command line arguments
+local parser = argparse('build.lua', 'Ciabatta build script')
+parser:flag('-c --clean', 'Remove all the binaries before recompiling')
+parser:flag('-o --only', 'Do not compile ciabatta')
+parser:flag('-r --release', 'Compile the release version (without it will compile everything in debug mode)')
+parser:option('-p --platform', 'OS to compile for (linux, windows)')
+parser:option('-l --library', 'Type of library to compile (static, shared)')
+parser:option('-t --test', 'Compile a C file and link the library against it')
+parser:option('--options', 'Additional options to provide to the executable')
+local args = parser:parse()
+local is_clean = args.clean or false
+local is_only = args.only or false
+local is_release = args.release or false
+local platform = args.platform or 'linux'
+local library_type = args.library or 'static'
+local test_file = args.test
+local compiler_options = args.options or ''
+
+-- Clean the build files if needed
+function rmdir(p)
+  path.each(path.join(p,"*"), function(P)
+    path.remove(P)
+  end,{
+    param = "f";   -- request full path
+    delay = true;   -- use snapshot of directory
+    recurse = true; -- include subdirs
+    reverse = true; -- subdirs at first 
+  })
+  path.remove(p)
+end
+if is_clean then
+    print('Cleaning files..')
+    rmdir('lib')
+    rmdir('bin')
+    os.remove('a')
+    os.remove('a.exe')
+end
+
+-- If we only needed to clean the build files, just exit here
+if is_only then
+    os.exit(0)
+end
+
+local assembler = 'nasm'
+local compiler = 'clang'
+local linker = 'ld'
+local includes = {'./include'}
+local compiler_defines = {}
+local compiler_flags = {'-nostdlib'}
+local ciabatta_lib = ''
+
+-- Figure out additional flags
+if is_release then
+    table.insert(compiler_flags, '-O2')
+    table.insert(compiler_defines, 'NDEBUG')
+else
+    table.insert(compiler_flags, '-g')
+    table.insert(compiler_flags, '-O0')
+    table.insert(compiler_defines, 'CIA_DEBUG')
+end
+if library_type == 'static' then
+    ciabatta_lib = 'ciabatta.a'
+    if platform == 'windows' then
+        ciabatta_lib = 'ciabatta.lib'
+    end
+elseif library_type == 'shared' then
+    ciabatta_lib = 'ciabatta.so'
+    if platform == 'windows' then
+        ciabatta_lib = 'ciabatta.dll'
+    end
+else
+    print('Invalid library type: ' .. library_type)
+end
+
+-- Turn flags into table
+function map(t, f)
+    local t1 = {}
+    local t_len = #t
+    for i = 1, t_len do
+        t1[i] = f(t[i])
+    end
+    return t1
+end
+function quote(str)
+    return '"'..str..'"'
+end
+function prefix(prefix)
+    return function(str)
+        return prefix..str
+    end
+end
+function prefix_quote(prefix)
+    return function(str)
+        return prefix..'"'..str..'"'
+    end
+end
+
+local cflags = table.concat(compiler_flags, ' ')..' '..
+               table.concat(map(compiler_defines, prefix('-D ')), ' ')..' '..
+               table.concat(map(includes, prefix_quote('-I ')), ' ')..' '
+
+print('Flags: ' .. cflags)
+
+-- Functions for compiling, linking and assembling individual files
+function assemble(src, out)
+    local format = 'elf64'
+    if platform == 'windows' then
+        format = 'win64'
+    end
+    local cmdline = 'nasm -f '..format..' "'..src..'" -o "'..out..'"'
+    print('> '..cmdline)
+    os.execute(cmdline)
+end
+
+function compile(srcs, out, additional_flags)
+    local flags = (additional_flags or '')..' '..cflags
+    local inputs = table.concat(map(srcs, quote), ' ')
+    local cmdline = 'clang '..flags..' '..inputs..' -o '..quote(out)..''
+    print('> '..cmdline)
+    os.execute(cmdline)
+end
+
+function archive(srcs, out)
+    os.remove(out)
+    local inputs = table.concat(map(srcs, quote), ' ')
+    local cmdline = 'llvm-ar -rcs '..quote(out)..' '..inputs
+    print('> '..cmdline)
+    os.execute(cmdline)
+end
+
+path.mkdir('lib')
+path.mkdir('bin')
+
+assemble('src/linux/crt_entry.asm', 'bin/crt_entry.o')
+compile({'src/linux/crt_ctors.c'}, 'bin/crt_ctors.o', '-fpic -c')
+compile({'src/ciabatta.c'}, 'bin/ciabatta.o', '-fpic -c')
+
+if library_type == 'static' then
+    archive({'bin/ciabatta.o', 'bin/crt_ctors.o', 'bin/crt_entry.o'}, 'lib/'..ciabatta_lib)
+elseif library_type == 'shared' then
+    print('SHARED OBJECTS NOT SUPPORTED YET')
+    os.exit(1)
+end
+
+if test_file then
+    compile({test_file, 'lib/'..ciabatta_lib}, 'a', '-pie')
+end

build.ps1

@@ -1,13 +0,0 @@
-
-# Generate the resources for UTF8
-windres -o utf8/utf8.obj utf8/utf8.rc
-
-# Compile chkstk
-nasm src\os_win\chkstk.asm -o chkstk.o -fwin64
-
-# Compile the rest of the party
-clang -Wall src\ciabatta.c -o ciabatta.obj -c -DCIABATTA_WIN -I src -I include -nodefaultlibs -g -mfma
-# rem cuik src\ciabatta.c -o ciabatta.obj -c -DCIABATTA_WIN -I src -I inc -nostdlib
-
-# Package up the .lib file
-lib /nologo /out:ciabatta.lib chkstk.o utf8.obj ciabatta.obj

build.sh

@@ -1,14 +0,0 @@
-#!/bin/bash
-
-[ ! -d "lib" ] && mkdir "lib"
-[ ! -d "bin" ] && mkdir "bin"
-
-[ "$1" != "-shared" ] && echo "static"
-
-nasm -f elf64 "src/linux/crt_entry.asm" -o "bin/crt_entry.o"
-clang -fPIC -nostdlib -I "include" -g "src/linux/crt_ctors.c" -c -o "bin/crt_ctors.o"
-clang -fPIC -nostdlib -I "include" -g "src/ciabatta.c" -c -o "bin/ciabatta.o"
-
-# Create a test executable
-clang -pie -nostdlib -Iinclude \
-    tests/empty.c bin/ciabatta.o bin/crt_ctors.o bin/crt_entry.o

readme.md

@@ -44,18 +44,32 @@ Before proceeding please note that ciabatta can only be compiled and used
 with `clang`. It may be able to work with `gcc` with some minor adjustments
 but I didn't test.
 
-### Building on windows
+For executing the script you will need lua and some lua dependencies that
+you can install with luarocks:
 
-Run `./build.ps1` to compile ciabatta
-- (Optionally) Run `./test crt` to make sure there are no errors
-  
-### Building and using on linux
+```
+# luarocks install lua-path
+# luarocks install argparse
+```
 
-There are two options: Use ciabatta as a shared library or as a static
-library.
+### Building
 
-Run `./build.sh` to compile ciabatta
-- If you wish to use shared library instead add `-shared` option to the build script
+On linux you can simply run `./build.lua` script. On windows you have to run
+it like `lua build.lua`. Reference for command-line options:
+
+```
+Usage: build.lua [-h] [-c] [-o] [-r] [-p <platform>] [-l <library>]
+       [-t <test>] [--options <options>]
+Options:
+   -h, --help                Show this help message and exit.
+   -c, --clean               Remove all the binaries before recompiling
+   -o, --only                Do not compile ciabatta
+   -r, --release             Compile the release version (without it will compile everything in debug mode)
+   -p --platform <platform>  OS to compile for (linux, windows)
+   -l --library <library>    Type of library to compile (static, shared)
+   -t --test <test>          Compile a C file and link the library against it
+   --options <options>       Additional options to provide to the executable
+```
 
 ## Usage
 

test.c

@@ -1,8 +0,0 @@
-
-#include <stdio.h>
-
-int main() {
-    char string[] = "hi";
-    printf("%s\n", string);
-    return 0;
-}

test.ps1

@@ -1,19 +0,0 @@
-
-
-$FILENAME = $("tests/" + $args + ".c")
-
-if(-not $(Test-Path -Path test_folder)) {
-    New-Item -ItemType Directory test_folder
-}
-
-if(-not $(Test-Path -Path test)) {
-    New-Item -ItemType Directory test
-}
-
-# Compile the test suite
-clang -g $FILENAME -I include utf8.obj -nostdlib -mfma -l ciabatta.lib
-
-# If succeeded run the test suite
-if($?) {
-    ./a.exe
-}