456 lines
13 KiB
Ruby
456 lines
13 KiB
Ruby
|
#!/usr/bin/env ruby
|
||
|
|
|
||
|
|
# vim-ruby-install: install the Vim config files for Ruby editing
|
||
|
|
#
|
||
|
|
# * scope out the target directory and get user to confirm
|
||
|
|
# * if no directory found, ask user
|
||
|
|
# * allow user to force a search for a Windows gvim installation
|
||
|
|
# * find source files from gem or from top level directory
|
||
|
|
# * copy to target directory, taking account of
|
||
|
|
# * line endings (NL for Unix-ish; CRLF for Windows)
|
||
|
|
# * permissions (755 for directories; 644 for files)
|
||
|
|
#
|
||
|
|
|
||
|
|
require 'rbconfig'
|
||
|
|
include RbConfig
|
||
|
|
require 'fileutils'
|
||
|
|
require 'optparse'
|
||
|
|
require 'pathname'
|
||
|
|
|
||
|
|
SOURCE_FILES = %w{
|
||
|
|
autoload/rubycomplete.vim
|
||
|
|
compiler/eruby.vim
|
||
|
|
compiler/rspec.vim
|
||
|
|
compiler/ruby.vim
|
||
|
|
compiler/rubyunit.vim
|
||
|
|
ftdetect/ruby.vim
|
||
|
|
ftplugin/eruby.vim
|
||
|
|
ftplugin/ruby.vim
|
||
|
|
indent/eruby.vim
|
||
|
|
indent/ruby.vim
|
||
|
|
syntax/eruby.vim
|
||
|
|
syntax/ruby.vim
|
||
|
|
}
|
||
|
|
|
||
|
|
#
|
||
|
|
# Miscellaneous functions in the user's environment.
|
||
|
|
#
|
||
|
|
class Env
|
||
|
|
#
|
||
|
|
# Returns :UNIX or :WINDOWS, according to CONFIG['host_os'] and $options[:windows].
|
||
|
|
#
|
||
|
|
def Env.determine_target_os
|
||
|
|
os = CONFIG['host_os']
|
||
|
|
if os =~ /mswin/ or $options[:windows]
|
||
|
|
return :WINDOWS
|
||
|
|
else
|
||
|
|
return :UNIX
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
#
|
||
|
|
# Returns the path to the directory where the vim configuration files will be copied from.
|
||
|
|
# The first preference is the directory above this script. If that fails, we look for the
|
||
|
|
# RubyGems package 'vim-ruby'. Failing that, we return +nil+.
|
||
|
|
#
|
||
|
|
def Env.determine_source_directory
|
||
|
|
# 1. Try the directory above this installation script.
|
||
|
|
vim_ruby_source_dir = File.expand_path(File.join(File.dirname($0), '..'))
|
||
|
|
return vim_ruby_source_dir if _valid_vim_ruby_dir(vim_ruby_source_dir)
|
||
|
|
# 2. Try the gem 'vim-ruby'.
|
||
|
|
begin
|
||
|
|
require 'rubygems'
|
||
|
|
raise "Need RubyGems 0.8+" if Gem::RubyGemsPackageVersion < '0.8'
|
||
|
|
rescue LoadError
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
#vim_ruby_gem_dir = Gem.latest_load_paths.grep(%r{gems/vim-ruby-\d{4}\.\d{2}\.\d{2}}).last
|
||
|
|
vim_ruby_gem_dir = Gem.all_load_paths.grep(%r{gems/vim-ruby-\d{4}\.\d{2}\.\d{2}}).sort.last
|
||
|
|
if vim_ruby_gem_dir and _valid_vim_ruby_dir(vim_ruby_gem_dir)
|
||
|
|
return vim_ruby_gem_dir
|
||
|
|
end
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
|
||
|
|
# Returns the Vim installation directory ($VIM).
|
||
|
|
# TODO: print warning if vim command not in PATH or appropriate key not in registry?
|
||
|
|
def Env.determine_vim_dir
|
||
|
|
installation_dir = ENV['VIM'] ||
|
||
|
|
case Env.determine_target_os
|
||
|
|
when :UNIX
|
||
|
|
IO.popen('vim --version 2>/dev/null') do |version|
|
||
|
|
dir = version.read[/fall-back for \$VIM: "(.*)"/, 1]
|
||
|
|
end
|
||
|
|
when :WINDOWS
|
||
|
|
begin
|
||
|
|
require 'win32/registry'
|
||
|
|
Win32::Registry::HKEY_LOCAL_MACHINE.open('SOFTWARE\Vim\Gvim') do |reg|
|
||
|
|
path = reg['path', Win32::Registry::REG_SZ]
|
||
|
|
dir = path.sub(/\\vim\d\d\\gvim.exe/i, '')
|
||
|
|
end
|
||
|
|
rescue Win32::Registry::Error
|
||
|
|
nil
|
||
|
|
end
|
||
|
|
end
|
||
|
|
return installation_dir
|
||
|
|
end
|
||
|
|
|
||
|
|
def Env.determine_home_dir
|
||
|
|
home_dir = ENV['HOME'] ||
|
||
|
|
case Env.determine_target_os
|
||
|
|
when :WINDOWS
|
||
|
|
ENV['HOMEDRIVE'] + ENV['HOMEPATH'] if ENV['HOMEDRIVE'] and ENV['HOMEPATH']
|
||
|
|
end
|
||
|
|
return home_dir
|
||
|
|
end
|
||
|
|
|
||
|
|
def Env.ask_user(message)
|
||
|
|
print message
|
||
|
|
gets.strip
|
||
|
|
end
|
||
|
|
|
||
|
|
private_class_method
|
||
|
|
|
||
|
|
def Env._valid_vim_ruby_dir(dir)
|
||
|
|
Dir.chdir(dir) do
|
||
|
|
return SOURCE_FILES.all? { |path| FileTest.file?(path) }
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
end # class Env
|
||
|
|
|
||
|
|
|
||
|
|
#
|
||
|
|
# A FileWriter writes files with pre-selected line endings and permissions.
|
||
|
|
#
|
||
|
|
# writer = FileWriter.new(:UNIX, 0664)
|
||
|
|
# writer.copy(source, target)
|
||
|
|
#
|
||
|
|
class FileWriter
|
||
|
|
LINE_ENDINGS = { :UNIX => "\n", :WINDOWS => "\r\n" }
|
||
|
|
|
||
|
|
def initialize(ending, file_permissions=0644, directory_permissions=0755)
|
||
|
|
@ending = LINE_ENDINGS[ending] or raise "No/invalid line ending given: #{ending}"
|
||
|
|
@permissions = {
|
||
|
|
:file => file_permissions,
|
||
|
|
:dir => directory_permissions
|
||
|
|
}
|
||
|
|
end
|
||
|
|
|
||
|
|
# Source and target paths assumed to be Pathname objects. Copy the source to the target,
|
||
|
|
# ensuring the right line endings.
|
||
|
|
def copy(source_path, target_path)
|
||
|
|
_ensure_directory_exists(target_path)
|
||
|
|
target_path.open('wb', @permissions[:file]) do |io|
|
||
|
|
lines = source_path.read.split("\n")
|
||
|
|
lines.each do |line|
|
||
|
|
io.write(line.chomp + @ending)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
puts "#{source_path.to_s.ljust(25)} -> #{target_path}"
|
||
|
|
end
|
||
|
|
|
||
|
|
# Create the given directory with the correct directory permissions.
|
||
|
|
def mkpath(directory)
|
||
|
|
FileUtils.mkdir_p(directory.to_s, :mode => @permissions[:dir], :verbose => true)
|
||
|
|
end
|
||
|
|
|
||
|
|
def _ensure_directory_exists(path)
|
||
|
|
dir = path.dirname
|
||
|
|
unless dir.directory?
|
||
|
|
# <XXX> FileUtils.mkdir_p already checks if it exists and is a
|
||
|
|
# directory. What if it exists as a file? (HGS)</XXX>
|
||
|
|
mkpath(dir)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end # class FileWriter
|
||
|
|
|
||
|
|
#
|
||
|
|
# Represents the target base directory for installs. Handles writing the files through a
|
||
|
|
# given FileWriter.
|
||
|
|
#
|
||
|
|
class TargetDirectory
|
||
|
|
def self.finder
|
||
|
|
TargetDirectory::Finder.new
|
||
|
|
end
|
||
|
|
|
||
|
|
def initialize(directory, writer)
|
||
|
|
@directory = Pathname.new(directory)
|
||
|
|
@writer = writer # FileWriter
|
||
|
|
end
|
||
|
|
|
||
|
|
# Copies the given relative path from the current directory to the target.
|
||
|
|
def copy(path)
|
||
|
|
source_path = Pathname.new(path)
|
||
|
|
target_path = @directory + path
|
||
|
|
@writer.copy(source_path, target_path)
|
||
|
|
end
|
||
|
|
|
||
|
|
def [](path)
|
||
|
|
@directory + path
|
||
|
|
end
|
||
|
|
|
||
|
|
def path
|
||
|
|
@directory
|
||
|
|
end
|
||
|
|
end # class TargetDirectory
|
||
|
|
|
||
|
|
#
|
||
|
|
# Represents the target directory. Can find candidates, based on the operating system and
|
||
|
|
# user options; but is ultimately created with one in mind.
|
||
|
|
#
|
||
|
|
class TargetDirectory::Finder
|
||
|
|
# Guides the user through a selection process, ending in a chosen directory.
|
||
|
|
def find_target_directory
|
||
|
|
# 1. Was a directory specified using the --directory option?
|
||
|
|
if option_dir = $options[:target_dir]
|
||
|
|
return option_dir
|
||
|
|
end
|
||
|
|
# 2. Try the potentials (if there are any).
|
||
|
|
if dirs = _potential_directories and not dirs.empty?
|
||
|
|
puts
|
||
|
|
puts "Possible Vim installation directories:"
|
||
|
|
dirs.each_with_index do |dir, idx|
|
||
|
|
puts " #{idx+1}) #{dir}"
|
||
|
|
end
|
||
|
|
puts
|
||
|
|
r = Env.ask_user "Please select one (or anything else to specify another directory): "
|
||
|
|
if (1..dirs.size).include? r.to_i
|
||
|
|
chosen_directory = dirs[r.to_i - 1]
|
||
|
|
return chosen_directory
|
||
|
|
end
|
||
|
|
end
|
||
|
|
# 3. We didn't find any, or the user wants to enter another.
|
||
|
|
if dirs.empty?
|
||
|
|
puts
|
||
|
|
puts "Couldn't find any Vim installation directories."
|
||
|
|
end
|
||
|
|
entered_directory = Env.ask_user "Please enter the full path to your Vim installation directory: "
|
||
|
|
entered_directory = File.expand_path(entered_directory)
|
||
|
|
return entered_directory
|
||
|
|
end
|
||
|
|
|
||
|
|
private
|
||
|
|
|
||
|
|
# Return an array of _potential_ directories (i.e. they exist). Take the options into
|
||
|
|
# account.
|
||
|
|
def _potential_directories
|
||
|
|
dirs = []
|
||
|
|
dirs << _vim_user_dir
|
||
|
|
dirs << _vim_system_dir
|
||
|
|
return dirs.compact.map { |dir| File.expand_path(dir) }
|
||
|
|
end
|
||
|
|
|
||
|
|
# Return the Vim system preferences directory
|
||
|
|
def _vim_system_dir
|
||
|
|
vim_dir = Env.determine_vim_dir
|
||
|
|
system_dir = vim_dir + "/vimfiles" if vim_dir
|
||
|
|
return system_dir
|
||
|
|
end
|
||
|
|
|
||
|
|
# Return the Vim user preferences directory
|
||
|
|
def _vim_user_dir
|
||
|
|
platform_dir = { :UNIX => "/.vim", :WINDOWS => "/vimfiles" }
|
||
|
|
home_dir = Env.determine_home_dir
|
||
|
|
user_dir = home_dir + platform_dir[Env.determine_target_os] if home_dir
|
||
|
|
return user_dir
|
||
|
|
end
|
||
|
|
end # class TargetDirectory::Finder
|
||
|
|
|
||
|
|
#
|
||
|
|
# VimRubyInstaller is the class that copies the files from the source directory to the target
|
||
|
|
# directory, both of which are provided.
|
||
|
|
#
|
||
|
|
class VimRubyInstaller
|
||
|
|
# +source+ and +target+ are the base directories from and to which the configuration files
|
||
|
|
# will be copied. Both are strings.
|
||
|
|
def initialize(source, target)
|
||
|
|
unless FileTest.directory?(source)
|
||
|
|
raise "Automatically determined source directory ('#{source}') doesn't exist"
|
||
|
|
end
|
||
|
|
unless FileTest.directory?(target)
|
||
|
|
raise "Chosen target directory ('#{target}') doesn't exist"
|
||
|
|
end
|
||
|
|
@source_dir = source
|
||
|
|
file_writer = FileWriter.new(Env.determine_target_os)
|
||
|
|
@target_dir = TargetDirectory.new(target, file_writer)
|
||
|
|
end
|
||
|
|
|
||
|
|
# Since we know the source and target directories, all we have to do is copy the files
|
||
|
|
# across. If the --backup option was specified or the target file is
|
||
|
|
# _newer_ than the source file, we make a backup of it and report that to
|
||
|
|
# the user.
|
||
|
|
def install
|
||
|
|
backupdir = BackupDir.new("./vim-ruby-backup.#{Process.pid}")
|
||
|
|
Dir.chdir(@source_dir) do
|
||
|
|
SOURCE_FILES.each do |path|
|
||
|
|
source_path = Pathname.new(path)
|
||
|
|
target_path = @target_dir[path]
|
||
|
|
# FIXME: Backup everything for now
|
||
|
|
if $options[:backup] and target_path.file?
|
||
|
|
backupdir.backup(@target_dir, path)
|
||
|
|
elsif target_path.file? and target_path.mtime > source_path.mtime
|
||
|
|
# We're going to overwrite a newer file; back it up, unless they're the same.
|
||
|
|
unless _same_contents?(target_path, source_path)
|
||
|
|
backupdir.backup(@target_dir, path)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
@target_dir.copy(path)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
backups = backupdir.contents
|
||
|
|
unless backups.empty?
|
||
|
|
puts
|
||
|
|
puts "The following backups were made:"
|
||
|
|
backups.each do |path|
|
||
|
|
puts " * #{path}"
|
||
|
|
end
|
||
|
|
puts
|
||
|
|
puts "These backups are located in this directory: #{backupdir.path}"
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
private
|
||
|
|
|
||
|
|
# Test two files for equality of contents, ignoring line endings.
|
||
|
|
def _same_contents?(p1, p2)
|
||
|
|
contents1 = p1.read.split("\n").map { |line| line.chomp }
|
||
|
|
contents2 = p2.read.split("\n").map { |line| line.chomp }
|
||
|
|
contents1 == contents2
|
||
|
|
end
|
||
|
|
|
||
|
|
# A directory for holding backups of configuration files.
|
||
|
|
class BackupDir
|
||
|
|
def initialize(path)
|
||
|
|
@base = Pathname.new(path).expand_path
|
||
|
|
end
|
||
|
|
|
||
|
|
# Copy basedir/path to @path/path.
|
||
|
|
def backup(basedir, path)
|
||
|
|
@base.mkpath unless @base.directory?
|
||
|
|
source = basedir.path + path
|
||
|
|
target = @base + path
|
||
|
|
target.dirname.mkpath
|
||
|
|
FileUtils.cp(source.to_s, target.dirname.to_s, :verbose => true)
|
||
|
|
end
|
||
|
|
|
||
|
|
def [](path)
|
||
|
|
@base + path
|
||
|
|
end
|
||
|
|
|
||
|
|
def contents
|
||
|
|
return [] unless @base.directory?
|
||
|
|
results = []
|
||
|
|
Dir.chdir(@base) do
|
||
|
|
Pathname.new('.').find do |path|
|
||
|
|
results << path if path.file?
|
||
|
|
end
|
||
|
|
end
|
||
|
|
results
|
||
|
|
end
|
||
|
|
|
||
|
|
def path
|
||
|
|
@base
|
||
|
|
end
|
||
|
|
end # class VimRubyInstaller::BackupDir
|
||
|
|
end # class VimRubyInstaller
|
||
|
|
|
||
|
|
#
|
||
|
|
# * * * M A I N * * *
|
||
|
|
#
|
||
|
|
|
||
|
|
begin
|
||
|
|
$options = {
|
||
|
|
:backup => false,
|
||
|
|
:target_dir => nil,
|
||
|
|
:windows => false
|
||
|
|
}
|
||
|
|
|
||
|
|
op = OptionParser.new do |p|
|
||
|
|
p.banner = %{
|
||
|
|
vim-ruby-install.rb: Install the vim-ruby configuration files
|
||
|
|
|
||
|
|
About:
|
||
|
|
* Detects the Vim user and system-wide preferences directories
|
||
|
|
* User to confirm before proceeding
|
||
|
|
* User may specify other directory
|
||
|
|
* Takes config files from current directory or from vim-ruby gem
|
||
|
|
* Writes files with correct permissions and line endings
|
||
|
|
|
||
|
|
Usage:
|
||
|
|
direct: ruby bin/vim-ruby-install.rb [options]
|
||
|
|
gem: vim-ruby-install.rb [options]
|
||
|
|
|
||
|
|
Options:
|
||
|
|
}.gsub(/^ /, '')
|
||
|
|
p.on('-b', '--backup', 'Backup existing runtime files') do |value|
|
||
|
|
$options[:backup] = value
|
||
|
|
end
|
||
|
|
p.on('-d DIR', '--directory', 'Install into given directory') do |dir|
|
||
|
|
$options[:target_dir] = dir
|
||
|
|
end
|
||
|
|
p.on('-w', '--windows', 'Install into Windows directories') do |value|
|
||
|
|
$options[:windows] = value
|
||
|
|
end
|
||
|
|
p.on('-h', '--help', 'Show this message') do
|
||
|
|
puts p
|
||
|
|
exit
|
||
|
|
end
|
||
|
|
p.on_tail %{
|
||
|
|
Notes:
|
||
|
|
|
||
|
|
* "Direct" usage means unpacking a vim-ruby tarball and running this
|
||
|
|
program from the vim-ruby directory.
|
||
|
|
|
||
|
|
* The convenient alternative is to use RubyGems:
|
||
|
|
gem install vim-ruby
|
||
|
|
vim-ruby-install.rb
|
||
|
|
|
||
|
|
* The --windows option is designed for forcing an install into the
|
||
|
|
Windows (gvim) configuration directory; useful when running from
|
||
|
|
Cygwin or MinGW.
|
||
|
|
|
||
|
|
* This installer is quite new (2004-09-20). Please report bugs to
|
||
|
|
gsinclair@soyabean.com.au.
|
||
|
|
}.gsub(/^ /, '')
|
||
|
|
end
|
||
|
|
op.parse!(ARGV)
|
||
|
|
|
||
|
|
if not ARGV.empty?
|
||
|
|
raise "invalid argument: #{ARGV[0]}"
|
||
|
|
end
|
||
|
|
|
||
|
|
source_dir = Env.determine_source_directory
|
||
|
|
if source_dir.nil?
|
||
|
|
raise "Can't find source directory."
|
||
|
|
end
|
||
|
|
|
||
|
|
target_dir = TargetDirectory.finder.find_target_directory
|
||
|
|
if not File.directory?(target_dir)
|
||
|
|
puts
|
||
|
|
puts "Target directory '#{target_dir}' does not exist."
|
||
|
|
response = Env.ask_user "Do you want to create it? [Yn] "
|
||
|
|
response = "y" if response.empty?
|
||
|
|
if response.strip =~ /^y(es)?$/i
|
||
|
|
FileUtils.mkdir_p(target_dir, :verbose => true)
|
||
|
|
else
|
||
|
|
puts
|
||
|
|
puts "Installation aborted."
|
||
|
|
exit
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
VimRubyInstaller.new(source_dir, target_dir).install
|
||
|
|
|
||
|
|
rescue
|
||
|
|
|
||
|
|
raise if $DEBUG
|
||
|
|
$stderr.puts
|
||
|
|
$stderr.puts $!.message
|
||
|
|
$stderr.puts "Try 'ruby #{$0} --help' for detailed usage."
|
||
|
|
exit 1
|
||
|
|
|
||
|
|
end
|
||
|
|
|
||
|
|
# vim: nowrap sw=2 sts=2 ts=8 ff=unix ft=ruby:
|