RakeTemplate

Keybinding Markup

---
title: RakeTemplate
---

# Rakefile template for building C code.
    #
    # Outputs to a separate build tree
    # Escapes filenames correctly (for bash at least).
    #
    # Author: mark at markferry dot net
    # Licence: public domain, use it as you wish
    #
    require 'rake/clean'
    require 'shellwords'
    
    ## Tasks
    Dir['tasks/*.rake'].each { |f| import f }
    
    ##### Inputs ######
    SRC_DIR = "src"
    
    # Not working. Needs pathmap variables
    CONFIG = ENV["CONFIG"] || "Release"
    
    ## Arch-ABI-Configuration
    ARCH = "x86"
    ABI = "gnuabi"
    AAC = [ARCH, ABI, CONFIG].join('-')
    
    OBJ_DIR = File.join("build", AAC)
    DIST_DIR = File.join("dist", AAC)
    
    PROJ = "raketest"
    
    DIST_EXE = File.join(DIST_DIR, PROJ).ext('exe')
    
    ## CC
    CC = "gcc"
    
    C_SRCS = FileList["#{SRC_DIR}/*\*/\*.c"]
    
    def to_obj(objdir, f)
      f.sub(/^#{SRC_DIR}/, objdir).ext('.o')
    end
    
    C\_OBJS = C\_SRCS.map { |f|
      to_obj(OBJ_DIR, f)
    }
    
    ##### Targets ######
    CLEAN.include C_OBJS
    CLEAN.include DIST_DIR
    
    directory OBJ_DIR
    directory DIST_DIR
    
    # Create output dirs for each include dir
    C_OBJS.each do |d|
      directory d.pathmap('%d')
    end
    
    task :default => :build
    
    desc "Build"
    task :build => DIST_EXE
    
    task :info do
      p C_SRCS
      p C_OBJS
      p DIST_EXE
    end
    
    ##### Rules ######
    
    ## CC
    rule '.o' => [
        proc { |tn| tn.sub(/#{OBJ\_DIR}/, SRC\_DIR).ext('.c') },
        '%d'
      ] do |t|
      sh %Q{#{CC} -c #{t.source.shellescape} -o #{t.name.shellescape}}
    end
    
    ## LD
    rule '.exe' => [*C_OBJS, '%d'] do |t|
      sh %Q{#{CC} -o #{t.name.shellescape} #{C_OBJS.shelljoin}}
    end

[1]: RakeTemplate?action=sourceblock&num=1

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