From: Simon Strandgaard <neoneye@...>
Date: 2006-03-18T04:52:32+09:00
Subject: Re: incremental rebuild with Rake

On 3/17/06, Simon Strandgaard <neoneye@gmail.com> wrote:
> On 3/17/06, Simon Strandgaard <neoneye@gmail.com> wrote:
> > I am using Rake for testing c++ code.
> >
> > Incremental rebuild does not work for .h files,
> > Any ideas?
>
> I have made some changes to my .h files
> and nothing happens when I type 'rake'!
>
> I wonder how to describe, that the application also
> depends on the .h files.


Anything smarter than converting makedepend to ruby, like this?

--
Simon Strandgaard



task :depend do
  sh "makedepend -f- -- #{CFLAGS} -- #{CPP_SOURCES} > .depend"
end



=begin
input:
code.o: code.h morecode.h

output:
{'code.o' => ['code.h', 'morecode.h']}
=end
def convert_makedepend_to_hash(filename)
  lines1 = IO.readlines(filename)
  # get rid of comments and empty lines
  lines2 = lines1.reject{|line| line  =~ /^#|^\s*$/ }

  deps = {}
  lines2.each do |line|
    o_file, h_files_str = line.strip.split(': ')
    h_files = h_files_str.split(' ')
    deps[o_file] = h_files
  end

  deps
end


task :rakedepend do
  deps = convert_makedepend_to_hash('.depend')
  #p deps

  ary = []
  deps.each do |o_file, deps|
    s = 'file "' + o_file + '" => ' + deps.inspect
    ary << s
  end
  result = ary.join("\n")
  result += "\n\n"
  File.open('.rakedepends', 'w+') {|f| f.write(result)}
end

load '.rakedepends'