120 lines
2.5 KiB
Ruby
120 lines
2.5 KiB
Ruby
# frozen_string_literal: true
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require_relative "deprecate"
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##
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# This module contains various utility methods as module methods.
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module Gem::Util
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##
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# Zlib::GzipReader wrapper that unzips +data+.
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def self.gunzip(data)
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require "zlib"
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require "stringio"
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data = StringIO.new(data, "r")
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gzip_reader = begin
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Zlib::GzipReader.new(data)
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rescue Zlib::GzipFile::Error => e
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raise e.class, e.inspect, e.backtrace
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end
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unzipped = gzip_reader.read
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unzipped.force_encoding Encoding::BINARY
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unzipped
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end
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##
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# Zlib::GzipWriter wrapper that zips +data+.
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def self.gzip(data)
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require "zlib"
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require "stringio"
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zipped = StringIO.new(String.new, "w")
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zipped.set_encoding Encoding::BINARY
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Zlib::GzipWriter.wrap zipped do |io|
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io.write data
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end
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zipped.string
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end
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##
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# A Zlib::Inflate#inflate wrapper
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def self.inflate(data)
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require "zlib"
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Zlib::Inflate.inflate data
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end
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##
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# This calls IO.popen and reads the result
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def self.popen(*command)
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IO.popen command, &:read
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end
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##
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# Invokes system, but silences all output.
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def self.silent_system(*command)
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opt = { :out => IO::NULL, :err => [:child, :out] }
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if Hash === command.last
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opt.update(command.last)
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cmds = command[0...-1]
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else
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cmds = command.dup
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end
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system(*(cmds << opt))
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end
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class << self
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extend Gem::Deprecate
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rubygems_deprecate :silent_system
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end
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##
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# Enumerates the parents of +directory+.
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def self.traverse_parents(directory, &block)
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return enum_for __method__, directory unless block_given?
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here = File.expand_path directory
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loop do
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Dir.chdir here, &block rescue Errno::EACCES
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new_here = File.expand_path("..", here)
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return if new_here == here # toplevel
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here = new_here
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end
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end
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##
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# Globs for files matching +pattern+ inside of +directory+,
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# returning absolute paths to the matching files.
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def self.glob_files_in_dir(glob, base_path)
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if RUBY_VERSION >= "2.5"
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Dir.glob(glob, base: base_path).map! {|f| File.expand_path(f, base_path) }
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else
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Dir.glob(File.expand_path(glob, base_path))
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end
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end
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##
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# Corrects +path+ (usually returned by `URI.parse().path` on Windows), that
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# comes with a leading slash.
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def self.correct_for_windows_path(path)
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if path[0].chr == "/" && path[1].chr =~ /[a-z]/i && path[2].chr == ":"
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path[1..-1]
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else
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path
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end
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end
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end
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