94 lines
2.4 KiB
Ruby
Executable File
94 lines
2.4 KiB
Ruby
Executable File
#!/usr/bin/env ruby
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require "fileutils"
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if File.read("lib/rscons/version.rb") =~ /VERSION = "(.+)"/
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VERSION = $1
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else
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raise "Could not determine version."
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end
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if `git show | head -n 1` =~ /commit\s+([0-9a-f]{7})/i
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GIT = $1
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else
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raise "Could not determine git revision."
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end
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PROG_NAME = "rscons"
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START_FILE = "bin/#{PROG_NAME}"
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LIB_DIR = "lib"
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DIST = "dist"
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files_processed = {}
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combined_file = []
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combine_files = lambda do |file|
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File.read(file, mode: "rb").each_line do |line|
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if line =~ /^\s*require(?:_relative)?\s*"(.*)"$/
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require_name = $1
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if require_name =~ %r{^#{PROG_NAME}(?:/.*)?$}
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path = "#{LIB_DIR}/#{require_name}.rb"
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if File.exists?(path)
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unless files_processed[path]
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files_processed[path] = true
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combine_files[path]
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end
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else
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raise "require path #{path.inspect} not found"
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end
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else
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combined_file << line
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end
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else
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combined_file << line
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end
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end
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end
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combine_files[START_FILE]
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# Strip Ruby comment lines and empty lines to save some space, but do not
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# remove lines that are in heredoc sections. This isn't terribly robust to be
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# used in the wild, but works for the heredoc instances for this project.
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stripped_comments = []
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heredoc_end = nil
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combined_file.each do |line|
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if line =~ /<<-?([A-Z]+)/
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heredoc_end = $1
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end
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if heredoc_end and line =~ /^\s*#{heredoc_end}/
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heredoc_end = nil
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end
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if heredoc_end or not (line =~ /^\s*(#[^!].*)?$/)
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stripped_comments << line
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end
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end
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require "zlib"
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compressed_script = Zlib::Deflate.deflate(stripped_comments.join)
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escaped_compressed_script = compressed_script.gsub("#", "#1").gsub("\n", "#2").gsub("\r", "#3").gsub("\0", "#4")
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FileUtils.mkdir_p(DIST)
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File.open("#{DIST}/#{PROG_NAME}", "wb", 0755) do |fh|
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fh.write(<<EOF)
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#!/usr/bin/env ruby
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script = ".rscons-#{VERSION}-#{GIT}.rb"
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unless File.exists?(script)
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if File.read(__FILE__, mode: "rb") =~ /^#==>(.*)/
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escaped_compressed = $1
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unescaped_compressed = escaped_compressed.gsub("#4", "\\0").gsub("#3", "\\r").gsub("#2", "\\n").gsub("#1", "#")
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require "zlib"
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inflated = Zlib::Inflate.inflate(unescaped_compressed)
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File.open(script, "wb") do |fh|
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fh.write(inflated)
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end
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else
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raise "Could not decompress."
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end
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end
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load script
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if __FILE__ == $0
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Rscons::Cli.run(ARGV)
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end
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#==>#{escaped_compressed_script}
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EOF
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end
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