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#!/usr/bin/env ruby
# rb-link - ruby linker
#
# Copyright (C) 2003,2006,2007 Tanaka Akira <akr@fsij.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
# OF SUCH DAMAGE.
require 'rbconfig'
require 'optparse'
require 'pathname'
def expand_require(out, filename, dirs, main, included={})
open(filename) {|f|
comment = false
test = false
f.each {|line|
if /^=begin/ =~ line
comment = true
out.print line
elsif /^=end/ =~ line
comment = false
out.print line
elsif comment
out.print line
elsif !main && (/^if __FILE__ == \$0/ =~ line || /^if \$0 == __FILE__/ =~ line)
test = true
out.print "#", line
elsif test && /^end/ =~ line
test = false
out.print "#", line
elsif test
out.print "#", line
elsif /^require '([^']*)'/ =~ line && %r{^/} !~ (req = $1)
if included[req]
out.print "#", line
else
dir = dirs.find {|d| (d + "#{req}.rb").exist? }
if dir
out.print "#", line
filename = dir + "#{req}.rb"
included[req] = filename
#endmark = 'End_' + [req].pack("m*").delete("\n")
#out.print "eval <<'#{endmark}', TOPLEVEL_BINDING, #{"[#{filename}]".dump}, #{out.output_line+1}\n"
expand_require(out, filename, dirs, false, included)
#out.print "#{endmark}\n"
else
out.print line
end
end
elsif /^__END__$/ =~ line
break
else
out.print line
end
}
}
end
module CountOutputLine
def output_line
@output_line = 1 unless defined? @output_line
@output_line
end
def write(str)
@output_line = output_line + str.count("\n")
super
end
end
def parse_options
$output_filename = nil
$dep_output_filename = nil
ARGV.options {|q|
q.banner = 'rb-link [opts] script-file [library-directories...]'
q.def_option('--help', 'show this message') {puts q; exit(0)}
q.def_option('--output=filename', '-o', 'specify output file') {|filename| $output_filename = filename}
q.def_option('--dependency=filename', '-d', 'specify dependency output file') {|filename| $dep_output_filename = filename}
q.parse!
}
end
def open_output
if $output_filename
File.open($output_filename, 'w') {|f|
yield f
f.chmod 0755
}
else
yield STDOUT
end
end
def main
parse_options
script = ARGV.shift
if ARGV.empty?
libdirs = [Pathname.new('.')]
else
libdirs = ARGV.map {|f| Pathname.new(f) }
end
open_output {|out|
out.extend CountOutputLine
interpreter_path = File.join(Config::CONFIG["bindir"], Config::CONFIG["ruby_install_name"])
out.print "#!#{interpreter_path}\n"
included = {}
expand_require(out, script, libdirs, true, included)
if $dep_output_filename
open($dep_output_filename, 'w') {|f|
incs = included.values.sort
if incs.empty?
f.puts "#{$output_filename} : #{script}"
else
f.puts "#{$output_filename} : #{script} #{incs.join(' ')}"
incs.each {|inc|
f.puts "#{inc} :"
}
end
}
end
}
end
main
|
