Module: Lyp::Lilypond

Defined in:
lib/lyp/windows.rb,
lib/lyp/lilypond.rb

Constant Summary collapse

NO_ARGUMENT_OPTIONS_REGEXP = 
/^\-([REnFOcSA]+)(.+)/
VERSION_STATEMENT_REGEX = 
/\\version "([^"]+)"/
CMP_VERSION = 
proc do |x, y|
  Lyp.version(x[:version]) <=> Lyp.version(y[:version])
end
BASE_URL = 
"http://download.linuxaudio.org/lilypond/binaries"
SYSTEM_LILYPOND_PATCH_WARNING = 
<<-EOF.gsub(/^\s{6}/, '').chomp
  The system-installed lilypond version %s needs to be patched in
  order to support custom music fonts. This operation will replace the file

    %s

  Would you like to overwrite this file? (y/n):
EOF
CHECK_UPDATE_INTERVAL = 
7 * 86400
CHECK_UPDATE_STAMP_KEY = 
'lilypond/last_update_stamp'
UNSTABLE_UPDATE_MESSAGE = 
<<EOF
Lilypond version %s is now available. Install it by typing:

  lyp install lilypond@unstable

EOF

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.forced_version ⇒ Object (readonly)

Returns the value of attribute forced_version.



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# File 'lib/lyp/lilypond.rb', line 185

def forced_version
  @forced_version
end

Class Method Details

.check_lilypond! ⇒ Object

Make sure there’s a default and current lilypond set



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# File 'lib/lyp/lilypond.rb', line 188

def check_lilypond!
  path = default_lilypond
  select_default_lilypond! unless path && path =~ /lilypond$/

  path = current_lilypond
  set_current_lilypond(default_lilypond) unless path && path =~ /lilypond$/
end

.check_update ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 732

def check_update
  last_check = Lyp::Settings.get_value(
    CHECK_UPDATE_STAMP_KEY, Time.now - CHECK_UPDATE_INTERVAL)

  return unless last_check < Time.now - CHECK_UPDATE_INTERVAL

  Lyp::Settings.set_value(CHECK_UPDATE_STAMP_KEY, Time.now)

  # check unstable
  installed = latest_installed_unstable_version
  return unless installed

  available = {version: latest_unstable_version}
  installed = {version: installed}

  if CMP_VERSION[available, installed] > 0
    puts UNSTABLE_UPDATE_MESSAGE % available[:version]
  end
end

.compile(argv, opts = {}) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 100

def compile(argv, opts = {})
  unless argv.last == '-'
    fn = Lyp.wrap(argv.pop, opts)
    argv << fn
  end

  invoke(argv, opts)
end

.copy_fonts_from_all_packages(version, opts) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 612

def copy_fonts_from_all_packages(version, opts)
  return unless Lyp::FONT_COPY_REQ =~ Lyp.version(version)

  ly_fonts_dir = File.join(lyp_lilypond_share_dir(version), 'lilypond/current/fonts')

  Dir["#{Lyp.packages_dir}/**/fonts"].each do |package_fonts_dir|
    Dir["#{package_fonts_dir}/**/*"].each do |fn|
      next unless File.file?(fn)
      target_fn = case File.extname(fn)
      when '.otf'
        File.join(ly_fonts_dir, 'otf', File.basename(fn))
      when '.svg', '.woff'
        File.join(ly_fonts_dir, 'svg', File.basename(fn))
      else
        next
      end

      FileUtils.cp(fn, target_fn)
    end
  end
end

.copy_lilypond_files(base_path, version, opts) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 553

def copy_lilypond_files(base_path, version, opts)
  target_dir = File.join(Lyp.lilyponds_dir, version)

  FileUtils.rm_rf(target_dir) if File.exists?(target_dir)

  # create directory for lilypond files
  FileUtils.mkdir_p(target_dir)

  # copy files
  STDERR.puts "Copying..." unless opts[:silent]
  %w{bin etc lib lib64 share var}.each do |entry|
    dir = File.join(base_path, entry)
    FileUtils.cp_r(dir, target_dir, remove_destination: true) if File.directory?(dir)
  end

  # Show lilypond versions
  STDERR.puts `#{target_dir}/bin/lilypond -v` unless opts[:silent] || opts[:no_version_test]
rescue => e
  puts e.message
end

.current_lilypond ⇒ Object

The current lilypond path is stored in a temporary file named by the session id. Thus we can persist the version selected by the user



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# File 'lib/lyp/lilypond.rb', line 133

def current_lilypond
  return forced_lilypond if @forced_version

  settings = get_session_settings

  if !settings[:current]
    settings[:current] = default_lilypond
    set_session_settings(settings)
  end

  settings[:current]
end

.current_lilypond_version ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 146

def current_lilypond_version
  path = current_lilypond
  version = File.basename(File.expand_path("#{File.dirname(path)}/../.."))

  unless (Lyp.version(version) rescue nil)
    resp = `#{path} -v`
    if resp.lines.first =~ /LilyPond ([0-9\.]+)/i
      version = $1
    end
  end
  version
end

.default_lilypond ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 123

def default_lilypond
  Lyp::Settings['lilypond/default']
end

.detect_lilypond_platform ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 411

def detect_lilypond_platform
  case RUBY_PLATFORM
  when /x86_64-darwin/
    "darwin-x86"
  when /ppc-darwin/
    "darwin-ppc"
  when "i686-linux"
    "linux-x86"
  when "x86_64-linux"
    "linux-64"
  when "ppc-linux"
    "linux-ppc"
  when "x64-mingw32"
    "mingw"
  end
end

.detect_version_from_specifier(version_specifier) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 390

def detect_version_from_specifier(version_specifier)
  case version_specifier
  when /^\d/
    version_specifier
  when nil, 'stable'
    latest_stable_version
  when 'unstable'
    latest_unstable_version
  when 'latest'
    latest_version
  else
    req = Lyp.version_req(version_specifier)
    lilypond = search.reverse.find {|l| req =~ Lyp.version(l[:version])}
    if lilypond
      lilypond[:version]
    else
      raise "Could not find version matching #{version_specifier}"
    end
  end
end

.download_lilypond(url, fn, opts) ⇒ Object 



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# File 'lib/lyp/windows.rb', line 44

def download_lilypond(url, fn, opts)
  STDERR.puts "Downloading #{url}" unless opts[:silent]

  if opts[:silent]
    `curl -s -o "#{fn}" "#{url}"`
  else
    `curl -o "#{fn}" "#{url}"`
  end
end

.exec(cmd, raise_on_failure = true) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 702

def exec(cmd, raise_on_failure = true)
  $_out = ""
  $_err = ""
  success = nil
  Open3.popen3(cmd) do |_in, _out, _err, wait_thr|
    exit_value = wait_thr.value
    $_out = _out.read
    $_err = _err.read
    success = exit_value == 0
  end
  if !success && raise_on_failure
    raise "Error executing cmd #{cmd}:\n#{parse_error_msg($_err)}"
  end
  success
end

.filter_installed_list(version_specifier) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 228

def filter_installed_list(version_specifier)
  list = (system_lilyponds + lyp_lilyponds).sort!(&CMP_VERSION)
  list.select {|l| version_match(l[:version], version_specifier, list)}
end

.force_env_version! ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 174

def force_env_version!
  @forced_version = ENV['LILYPOND_VERSION']
  unless @forced_version
    raise "LILYPOND_VERSION not set"
  end
end

.force_version!(version) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 181

def force_version!(version)
  @forced_version = version
end

.forced_lilypond ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 165

def forced_lilypond
  lilypond = filter_installed_list(@forced_version)[0]
  if lilypond
    lilypond[:path]
  else
    raise "No installed version found matching '#{@forced_version}'"
  end
end

.get_file_expected_version(file_path) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 90

def get_file_expected_version(file_path)
  if IO.read(file_path) =~ VERSION_STATEMENT_REGEX
    $1
  else
    raise "Could not find version statement in #{file_path}"
  end
rescue => e
  raise "Failed to read #{file_path}"
end

.get_session_settings ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 210

def get_session_settings
  YAML.load(IO.read(session_settings_filename)) rescue {}
end

.get_system_lilyponds_paths ⇒ Object 



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# File 'lib/lyp/windows.rb', line 13

def get_system_lilyponds_paths
  []
end

.install(version_specifier, opts = {}) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 374

def install(version_specifier, opts = {})
  version = detect_version_from_specifier(version_specifier)
  raise "No version found matching specifier #{version_specifier}" unless version

  STDERR.puts "Installing version #{version}" unless opts[:silent]
  install_version(version, opts)

  lilypond_path = lyp_lilypond_path(version)
  set_current_lilypond(lilypond_path)
  set_default_lilypond(lilypond_path) if opts[:default]
end

.install_if_missing(version_specifier, opts = {}) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 368

def install_if_missing(version_specifier, opts = {})
  if filter_installed_list(version_specifier).empty?
    install(version_specifier, opts)
  end
end

.install_lilypond_files(fn, platform, version, opts) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 486

def install_lilypond_files(fn, platform, version, opts)
  tmp_target = "#{Lyp::TMP_ROOT}/lilypond-#{version}"
  FileUtils.mkdir_p(tmp_target)

  case platform
  when /darwin/
    install_lilypond_files_osx(fn, tmp_target, platform, version, opts)
  when /linux/
    install_lilypond_files_linux(fn, tmp_target, platform, version, opts)
  when /mingw/
    install_lilypond_files_windows(fn, tmp_target, platform, version, opts)
  end

ensure
  FileUtils.rm_rf(tmp_target)
end

.install_lilypond_files_linux(fn, target, platform, version, opts) ⇒ Object

Since linux versions are distributed as sh archives, we need first to extract the sh archive, then extract the resulting tar file



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# File 'lib/lyp/lilypond.rb', line 512

def install_lilypond_files_linux(fn, target, platform, version, opts)
  STDERR.puts "Extracting..." unless opts[:silent]

  # create temp directory in which to extract .sh file
  tmp_dir = "#{Lyp::TMP_ROOT}/#{Time.now.to_f}"
  FileUtils.mkdir_p(tmp_dir)

  FileUtils.cd(tmp_dir) do
    exec "sh #{fn} --tarball >/dev/null"
  end

  tmp_fn = "#{tmp_dir}/lilypond-#{version}-1.#{platform}.tar.bz2"

  exec "tar -xjf #{tmp_fn} -C #{target}"

  copy_lilypond_files("#{target}/usr", version, opts)
ensure
  FileUtils.rm_rf(tmp_dir)
end

.install_lilypond_files_osx(fn, target, platform, version, opts) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 503

def install_lilypond_files_osx(fn, target, platform, version, opts)
  STDERR.puts "Extracting..." unless opts[:silent]
  exec "tar -xjf #{fn} -C #{target}"

  copy_lilypond_files("#{target}/LilyPond.app/Contents/Resources", version, opts)
end

.install_lilypond_files_windows(fn, target, platform, version, opts) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 532

def install_lilypond_files_windows(fn, target, platform, version, opts)
  STDERR.puts "Running NSIS Installer..." unless opts[:silent]

  target_dir = File.join(Lyp.lilyponds_dir, version)
  FileUtils.mkdir_p(target_dir)

  # run installer
  cmd = "#{fn} /S /D=#{target_dir.gsub('/', '\\')}"
  `#{cmd}`

  # wait for installer to finish
  t1 = Time.now
  while !File.file?("#{target_dir}/usr/bin/lilypond.exe")
    sleep 0.5
    raise "Windows installation failed" if Time.now - t1 >= 60
  end

  # Show lilypond versions
  STDERR.puts `#{target_dir}/usr/bin/lilypond -v` unless opts[:silent] || opts[:no_version_test]
end

.install_version(version, opts) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 428

def install_version(version, opts)
  platform = detect_lilypond_platform
  url = lilypond_install_url(platform, version, opts)
  fn = temp_install_filename(url)

  download_lilypond(url, fn, opts) unless File.file?(fn)
  install_lilypond_files(fn, platform, version, opts)

  patch_font_scm(version)
  copy_fonts_from_all_packages(version, opts)
end

.invoke(argv, opts = {}) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 109

def invoke(argv, opts = {})
  lilypond = current_lilypond

  case opts[:mode]
  when :system
    system("#{lilypond} #{argv.join(" ")}")
  when :spawn
    pid = spawn(lilypond, *argv, opts[:spawn_opts] || {})
    Process.detach(pid)
  else
    Kernel.exec(lilypond, *argv)
  end
end

.latest_installed_unstable_version ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 359

def latest_installed_unstable_version
  latest = list.reverse.find {|l| Lyp.version(l[:version]).segments[1].odd?}
  latest ? latest[:version] : nil
end

.latest_stable_version ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 351

def latest_stable_version
  search.reverse.find {|l| Lyp.version(l[:version]).segments[1].even?}[:version]
end

.latest_unstable_version ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 355

def latest_unstable_version
  search.reverse.find {|l| Lyp.version(l[:version]).segments[1].odd?}[:version]
end

.latest_version ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 364

def latest_version
  search.last[:version]
end

.lilypond_install_url(platform, version, opts) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 440

def lilypond_install_url(platform, version, opts)
  ext = case platform
  when /darwin/
    ".tar.bz2"
  when /linux/
    ".sh"
  when /mingw/
    ".exe"
  end
  filename = "lilypond-#{version}-1.#{platform}"

  "#{BASE_URL}/#{platform}/#{filename}#{ext}"
end

.list(opts = {}) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 233

def list(opts = {})
  system_list = opts[:lyp_only] ? [] : system_lilyponds
  lyp_list = opts[:system_only] ? [] : lyp_lilyponds

  default = default_lilypond
  unless default
    latest = system_list.sort(&CMP_VERSION).last || lyp_list.sort(&CMP_VERSION).last
    if latest
      default = latest[:path]
      set_default_lilypond(default)
    end
  end
  current = current_lilypond

  lilyponds = system_list + lyp_list

  lilyponds.each do |l|
    l[:default] = l[:path] == default
    l[:current] = l[:path] == current
  end

  # sort by version
  lilyponds.sort!(&CMP_VERSION)
end

.lyp_lilypond_path(version) ⇒ Object 



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# File 'lib/lyp/windows.rb', line 17

def lyp_lilypond_path(version)
  "#{Lyp.lilyponds_dir}/#{version}/usr/bin/lilypond.exe"
end

.lyp_lilypond_share_dir(version) ⇒ Object 



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# File 'lib/lyp/windows.rb', line 21

def lyp_lilypond_share_dir(version)
  File.join(Lyp.lilyponds_dir, version, 'usr/share')
end

.lyp_lilyponds ⇒ Object 



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# File 'lib/lyp/windows.rb', line 25

def lyp_lilyponds
  list = []

  Dir["#{Lyp.lilyponds_dir}/*"].each do |path|
    next unless File.directory?(path) && File.basename(path) =~ /^[\d\.]+$/
  
    root_path = path
    version = File.basename(path)
    path = File.join(path, "usr/bin/lilypond.exe")
    list << {
      root_path: root_path,
      path: path,
      version: version
    }
  end

  list
end

.parse_error_msg(msg) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 718

def parse_error_msg(msg)
  (msg =~ /[^\n]+: error.+failed files: ".+"/m) ? $& : msg
end

.parse_lilypond_arg(arg, argv, argv_clean, options) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 20

def parse_lilypond_arg(arg, argv, argv_clean, options)
  case arg
  when NO_ARGUMENT_OPTIONS_REGEXP
    # handle multiple options in shorthand form, e.g. -FnO
    tmp_args = []
    $1.each_char {|c| tmp_args << "-#{c}"}
    tmp_args << "-#{$2}"
    argv = tmp_args + argv
  when '-A', '--auto-install-deps'
    options[:resolve] = true
  when '-c', '--cropped'
    argv_clean += ['-dbackend=eps', '-daux-files=#f']
  when '-E', '--env'
    unless ENV['LILYPOND_VERSION']
      STDERR.puts "$LILYPOND_VERSION not set"
      exit 1
    end
    options[:use_version] = ENV['LILYPOND_VERSION']
  when '-F', '--force-version'
    options[:force_version] = true
  when '-n', '--install'
    options[:install] = true
  when '-O', '--open'
    options[:open] = true
  when '-r', '--require'
    options[:ext_require] ||= []
    options[:ext_require] << argv.shift
  when /^(?:\-r|\-\-require\=)"?([^\s]+)"?/
    options[:ext_require] ||= []
    options[:ext_require] << $1
  when '-R', '--raw'
    options[:raw] = true
  when '-S', '--snippet'
    argv_clean += ['-dbackend=eps', '-daux-files=#f', '--png', '-dresolution=600']
    options[:snippet_paper_preamble] = true
  when '-u', '--use'
    options[:use_version] = argv.shift
  when /^(?:\-u|\-\-use\=)"?([^\s]+)"?/
    options[:use_version] = $1
  else
    argv_clean << arg
  end
end

.patch_font_scm(version) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 574

def patch_font_scm(version)
  return unless Lyp::FONT_PATCH_REQ =~ Lyp.version(version)

  target_fn = File.join(lyp_lilypond_share_dir(version), 'lilypond/current/scm/font.scm')
  FileUtils.cp(Lyp::FONT_PATCH_FILENAME, target_fn)
end

.patch_system_lilypond_font_scm(lilypond, opts) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 590

def patch_system_lilypond_font_scm(lilypond, opts)
  return false unless Lyp::FONT_PATCH_REQ =~ Lyp.version(lilypond[:version])

  target_fn = File.join(lilypond[:data_path], '/scm/font.scm')
  # do nothing if alredy patched
  if IO.read(target_fn) == IO.read(Lyp::FONT_PATCH_FILENAME)
    return true
  end

  prompt = SYSTEM_LILYPOND_PATCH_WARNING % [lilypond[:version], target_fn]
  return unless Lyp.confirm_action(prompt)

  puts "Patching #{target_fn}:" unless opts[:silent]
  if File.writeable?(target_fn)
    FileUtils.cp(target_fn, "#{target_fn}.old")
    FileUtils.cp(Lyp::FONT_PATCH_FILENAME, target_fn)
  else
    Lyp.sudo_cp(target_fn, "#{target_fn}.old")
    Lyp.sudo_cp(Lyp::FONT_PATCH_FILENAME, target_fn)
  end
end

.preprocess_argv(argv) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 9

def preprocess_argv(argv)
  options = {}
  argv = argv.dup # copy for iterating
  argv_clean = []
  while arg = argv.shift
    parse_lilypond_arg(arg, argv, argv_clean, options)
  end

  [options, argv_clean]
end

.search(version_specifier = nil) ⇒ Object

Returns a list of versions of lilyponds available for download



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# File 'lib/lyp/lilypond.rb', line 316

def search(version_specifier = nil)
  require 'open-uri'

  platform = detect_lilypond_platform
  url = "#{BASE_URL}/#{platform}/"

  versions = []

  open(url).read.scan(/a href=\"lilypond-([0-9\.]+)[^>]+\"/) do |m|
    versions << $1
  end

  installed_versions = list.map {|l| l[:version]}
  versions.select! {|v| version_match(v, version_specifier, versions)}
  versions.map do |v|
    {
      version: v,
      installed: installed_versions.include?(v)
    }
  end
end

.select_default_lilypond! ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 200

def select_default_lilypond!
  latest = system_lilyponds.sort(&CMP_VERSION).last || lyp_lilyponds.sort(&CMP_VERSION).last
  if latest
    default = latest[:path]
    set_default_lilypond(default)
  else
    raise Lyp::LILYPOND_NOT_FOUND_MSG
  end
end

.select_lilypond_version(opts, file_path) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 66

def select_lilypond_version(opts, file_path)
  forced_version = opts[:force_version] ?
    get_file_expected_version(file_path) : opts[:use_version]

  if forced_version
    Lyp::Lilypond.install_if_missing(forced_version) if opts[:install]
    Lyp::Lilypond.force_version!(forced_version)
  end

  Lyp::Lilypond.check_lilypond!

  opts[:lilypond_version] = current_lilypond_version

  Lyp::Lilypond.current_lilypond.tap do |path|
    unless path && File.file?(path)
      STDERR.puts "No version of lilypond found. To install lilypond run 'lyp install lilypond'."
      exit 1
    end
  end
rescue => e
  STDERR.puts e.message
  exit 1
end

.session_settings_filename ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 220

def session_settings_filename
  "#{Lyp::TMP_ROOT}/session.#{Process.getsid}.yml"
end

.set_current_lilypond(path) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 159

def set_current_lilypond(path)
  settings = get_session_settings
  settings[:current] = path
  set_session_settings(settings)
end

.set_default_lilypond(path) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 127

def set_default_lilypond(path)
  Lyp::Settings['lilypond/default'] = path
end

.set_session_settings(settings) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 214

def set_session_settings(settings)
  File.open(session_settings_filename, 'w+') do |f|
    f << YAML.dump(settings)
  end
end

.system_lilyponds ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 278

def system_lilyponds
  list = get_system_lilyponds_paths
  return list if list.empty?

  list.inject([]) do |m, path|
    begin
      resp = `#{path} #{Lyp::DETECT_SYSTEM_LILYPOND_FILENAME} 2>/dev/null`

      if resp =~ /(.+)\n(.+)/
        version, data_path = $1, $2
        m << {
          root_path: File.expand_path(File.join(File.dirname(path), '..')),
          data_path: data_path,
          path: path,
          version: $1,
          system: true
        }
      end
    rescue
      # ignore error, don't include this version in the list of lilyponds
    end
    m
  end
end

.temp_install_filename(url) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 454

def temp_install_filename(url)
  u = URI(url)
  "#{Lyp::TMP_ROOT}/#{File.basename(u.path)}"
end

.uninstall(version_specifier, opts = {}) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 673

def uninstall(version_specifier, opts = {})
  list = list(lyp_only: true)
  if version_specifier
    list.select! {|l| version_match(l[:version], version_specifier, list)}
  elsif !opts[:all]
    # if no version is specified
    raise "No version specifier given.\nTo uninstall all versions run 'lyp uninstall lilypond -a'.\n"
  end

  if list.empty?
    if version_specifier
      raise "No lilypond found matching #{version_specifier}"
    else
      raise "No lilypond found"
    end
  end

  list.each do |l|
    puts "Uninstalling lilypond #{l[:version]}" unless opts[:silent]
    set_current_lilypond(nil) if l[:current]
    set_default_lilypond(nil) if l[:default]
    uninstall_lilypond_version(l[:root_path])
  end
end

.uninstall_lilypond_version(path) ⇒ Object 



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# File 'lib/lyp/windows.rb', line 54

def uninstall_lilypond_version(path)
  # run installer
  uninstaller_path = File.join(path, 'uninstall.exe')
  if File.file?(uninstaller_path)
    cmd = "#{uninstaller_path} /S _?=#{path.gsub('/', '\\')}"
    `#{cmd}`
  
    # wait for installer to finish
    t1 = Time.now
    while !File.directory?("#{target_dir}/usr")
      sleep 0.5
      raise "Uninstallation failed" if Time.now - t1 >= 60
    end
  end

  FileUtils.rm_rf(path)
end

.use(version, opts) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 638

def use(version, opts)
  lilypond_list = list.reverse

  case version
  when 'system'
    lilypond = lilypond_list.find {|v| v[:system] }
    unless lilypond
      raise "Could not find a system installed version of lilypond"
    end
  when 'latest'
    lilypond = lilypond_list.first
  when 'stable'
    lilypond = lilypond_list.find do |v|
      Lyp.version(v[:version]).segments[1].even?
    end
  when 'unstable'
    lilypond = lilypond_list.find do |v|
      Lyp.version(v[:version]).segments[1].odd?
    end
  else
    version = "~>#{version}.0" if version =~ /^\d+\.\d+$/
    req = Lyp.version_req(version)
    lilypond = lilypond_list.find {|v| req =~ Lyp.version(v[:version])}
  end

  unless lilypond
    raise "Could not find a lilypond matching \"#{version}\""
  end

  set_current_lilypond(lilypond[:path])
  set_default_lilypond(lilypond[:path]) if opts[:default]

  lilypond
end

.valid_lilypond?(path) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/lyp/lilypond.rb', line 196

def valid_lilypond?(path)
  (File.file?(path) rescue nil) && (`#{path} -v` =~ /^GNU LilyPond/)
end

.version_match(version, specifier, all_versions) ⇒ Object 



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# File 'lib/lyp/lilypond.rb', line 338

def version_match(version, specifier, all_versions)
  case specifier
  when 'latest'
    version == all_versions.last
  when 'stable'
    Lyp.version(version).segments[1].even?
  when 'unstable'
    Lyp.version(version).segments[1].odd?
  else
    Lyp.version_req(specifier) =~ Lyp.version(version)
  end
end