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|
#!/usr/bin/ruby
require 'fileutils'
require 'rubygems'
fu = FileUtils::Verbose
until ARGV.empty?
case ARGV.first
when '--'
ARGV.shift
break
when '-n', '--dry-run', '--dryrun'
## -n, --dry-run Don't remove
fu = FileUtils::DryRun
when /\A--make=/
# just to run when `make -n`
when /\A--mflags=(.*)/
fu = FileUtils::DryRun if /\A-\S*n/ =~ $1
when /\A--gem[-_]platform=(.*)/im
## --gem-platform=PLATFORM Platform in RubyGems style
gem_platform = $1
ruby_platform = nil
when /\A--ruby[-_]platform=(.*)/im
## --ruby-platform=PLATFORM Platform in Ruby style
ruby_platform = $1
gem_platform = nil
when /\A--ruby[-_]version=(.*)/im
## --ruby-version=VERSION Ruby version to keep
ruby_version = $1
when /\A--only=(?:(curdir|srcdir)|all)\z/im
## --only=(curdir|srcdir|all) Specify directory to remove gems from
only = $1&.downcase
when /\A--all\z/im
## --all Remove all gems not only bundled gems
all = true
when /\A--help\z/im
## --help Print this message
puts "Usage: #$0 [options] [srcdir]"
File.foreach(__FILE__) do |line|
line.sub!(/^ *## /, "") or next
break if line.chomp!.empty?
opt, desc = line.split(/ {2,}/, 2)
printf " %-28s %s\n", opt, desc
end
exit
when /\A-/
raise "#{$0}: unknown option: #{ARGV.first}"
else
break
end
##
ARGV.shift
end
gem_platform ||= Gem::Platform.new(ruby_platform).to_s if ruby_platform
class Removal
attr_reader :base
def initialize(base = nil)
@base = (File.join(base, "/") if base)
@remove = {}
end
def prefixed(name)
@base ? File.join(@base, name) : name
end
def stripped(name)
if @base && name.start_with?(@base)
name[@base.size..-1]
else
name
end
end
def slash(name)
name.sub(%r[[^/]\K\z], '/')
end
def exist?(name)
!@remove.fetch(name) {|k| @remove[k] = !File.exist?(prefixed(name))}
end
def directory?(name)
!@remove.fetch(slash(name)) {|k| @remove[k] = !File.directory?(prefixed(name))}
end
def unlink(name)
@remove[stripped(name)] = :rm_f
end
def rmdir(name)
@remove[slash(stripped(name))] = :rm_rf
end
def glob(pattern, *rest)
Dir.glob(prefixed(pattern), *rest) {|n|
yield stripped(n)
}
end
def sorted
@remove.sort_by {|k, | [-k.count("/"), k]}
end
def each_file
sorted.each {|k, v| yield prefixed(k) if v == :rm_f}
end
def each_directory
sorted.each {|k, v| yield prefixed(k) if v == :rm_rf}
end
end
srcdir = Removal.new(ARGV.shift)
curdir = !srcdir.base || File.identical?(srcdir.base, ".") ? srcdir : Removal.new
bundled = File.readlines("#{srcdir.base}gems/bundled_gems").
grep(/^(\w\S+)\s+\S+(?:\s+\S+\s+(\S+))?/) {$~.captures}.to_h rescue nil
srcdir.glob(".bundle/gems/*/") do |dir|
base = File.basename(dir)
next if !all && bundled && !bundled.key?(base[/\A.+(?=-)/])
unless srcdir.exist?("gems/#{base}.gem")
srcdir.rmdir(dir)
end
end
srcdir.glob(".bundle/.timestamp/*.revision") do |file|
unless bundled&.fetch(File.basename(file, ".revision"), nil)
srcdir.unlink(file)
end
end
srcdir.glob(".bundle/specifications/*.gemspec") do |spec|
unless srcdir.directory?(".bundle/gems/#{File.basename(spec, '.gemspec')}/")
srcdir.unlink(spec)
end
end
curdir.glob(".bundle/specifications/*.gemspec") do |spec|
unless srcdir.directory?(".bundle/gems/#{File.basename(spec, '.gemspec')}")
curdir.unlink(spec)
end
end
curdir.glob(".bundle/gems/*/") do |dir|
base = File.basename(dir)
unless curdir.exist?(".bundle/specifications/#{base}.gemspec") or
curdir.exist?("#{dir}/.bundled.#{base}.gemspec")
curdir.rmdir(dir)
end
end
curdir.glob(".bundle/{extensions,.timestamp}/*/") do |dir|
unless gem_platform and File.fnmatch?(gem_platform, File.basename(dir))
curdir.rmdir(dir)
end
end
if gem_platform
curdir.glob(".bundle/{extensions,.timestamp}/#{gem_platform}/*/") do |dir|
unless ruby_version and File.fnmatch?(ruby_version, File.basename(dir, '-static'))
curdir.rmdir(dir)
end
end
end
if ruby_version
curdir.glob(".bundle/extensions/#{gem_platform || '*'}/#{ruby_version}/*/") do |dir|
unless curdir.exist?(".bundle/specifications/#{File.basename(dir)}.gemspec")
curdir.rmdir(dir)
end
end
curdir.glob(".bundle/.timestamp/#{gem_platform || '*'}/#{ruby_version}/.*.time") do |stamp|
dir = stamp[%r[/\.([^/]+)\.time\z], 1].gsub('.-.', '/')[%r[\A[^/]+/[^/]+]]
unless curdir.directory?(File.join(".bundle", dir))
curdir.unlink(stamp)
end
end
end
unless only == "curdir"
srcdir.each_file {|f| fu.rm_f(f)}
srcdir.each_directory {|d| fu.rm_rf(d)}
end
unless only == "srcdir" or curdir.equal?(srcdir)
curdir.each_file {|f| fu.rm_f(f)}
curdir.each_directory {|d| fu.rm_rf(d)}
end
|
