Class: Fig::OperatingSystem
- Inherits:
-
Object
- Object
- Fig::OperatingSystem
- Defined in:
- lib/fig/operating_system.rb
Overview
Does things requiring real O/S interaction, primarilly taking care of file transfers and running external commands.
Constant Summary collapse
- SUCCESS =
0
- NOT_MODIFIED =
3
- NOT_FOUND =
4
Class Method Summary collapse
- .get_environment_variables(initial_values = nil) ⇒ Object
- .java? ⇒ Boolean
- .unix? ⇒ Boolean
- .windows? ⇒ Boolean
- .wrap_variable_name_with_shell_expansion(variable_name) ⇒ Object
Instance Method Summary collapse
- #copy(source, target, msg = nil) ⇒ Object
-
#create_archive(archive_name, files_to_archive) ⇒ Object
Expects files_to_archive as an Array of filenames.
- #delete_and_recreate_directory(dir) ⇒ Object
-
#download(url, path) ⇒ Object
Returns whether the file was not downloaded because the file already exists and is already up-to-date.
- #download_and_unpack_archive(url, download_directory) ⇒ Object
- #download_ftp_list(uri, dirs) ⇒ Object
- #download_list(url) ⇒ Object
-
#download_resource(url, download_directory) ⇒ Object
Returns the basename and full path to the download.
- #ftp_login(ftp, host) ⇒ Object
- #get_password ⇒ Object
- #get_username ⇒ Object
-
#initialize(login) ⇒ OperatingSystem
constructor
A new instance of OperatingSystem.
- #list(dir) ⇒ Object
- #log_info(msg) ⇒ Object
- #move_file(dir, from, to) ⇒ Object
- #mtime(path) ⇒ Object
- #shell_exec(cmd) ⇒ Object
- #strip_paths_for_list(ls_output, packages, path) ⇒ Object
-
#unpack_archive(dir, file) ⇒ Object
This method can handle the following archive types: .tar.bz2 .tar.gz .tgz .zip.
- #upload(local_file, remote_file) ⇒ Object
- #write(path, content) ⇒ Object
Constructor Details
#initialize(login) ⇒ OperatingSystem
Returns a new instance of OperatingSystem.
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# File 'lib/fig/operating_system.rb', line 28 def initialize(login) @login = login @username = ENV['FIG_USERNAME'] @password = ENV['FIG_PASSWORD'] end |
Class Method Details
.get_environment_variables(initial_values = nil) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 407 def self.get_environment_variables(initial_values = nil) if Fig::OperatingSystem.windows? return Fig::EnvironmentVariables::CaseInsensitive.new(initial_values) end return Fig::EnvironmentVariables::CaseSensitive.new(initial_values) end |
.java? ⇒ Boolean
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# File 'lib/fig/operating_system.rb', line 377 def self.java? RUBY_PLATFORM == 'java' end |
.unix? ⇒ Boolean
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# File 'lib/fig/operating_system.rb', line 381 def self.unix? !windows? end |
.windows? ⇒ Boolean
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# File 'lib/fig/operating_system.rb', line 373 def self.windows? RbConfig::CONFIG['host_os'] =~ /mswin|mingw/ end |
.wrap_variable_name_with_shell_expansion(variable_name) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 399 def self.wrap_variable_name_with_shell_expansion(variable_name) if Fig::OperatingSystem.windows? return "%#{variable_name}%" else return "$#{variable_name}" end end |
Instance Method Details
#copy(source, target, msg = nil) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 300 def copy(source, target, msg = nil) if File.directory?(source) FileUtils.mkdir_p(target) Dir.foreach(source) do |child| if child != '.' and child != '..' copy(File.join(source, child), File.join(target, child), msg) end end else if !File.exist?(target) || File.mtime(source) != File.mtime(target) log_info "#{msg} #{target}" if msg FileUtils.mkdir_p(File.dirname(target)) FileUtils.cp(source, target) File.utime(File.atime(source), File.mtime(source), target) end end end |
#create_archive(archive_name, files_to_archive) ⇒ Object
Expects files_to_archive as an Array of filenames.
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# File 'lib/fig/operating_system.rb', line 327 def create_archive(archive_name, files_to_archive) if Fig::OperatingSystem.java? `tar czvf #{archive_name} #{files_to_archive.join(' ')}` else # TODO: Need to verify files_to_archive exists. ::Archive.write_open_filename( archive_name, ::Archive::COMPRESSION_GZIP, ::Archive::FORMAT_TAR ) do |writer| files_to_archive.each do |file_name| writer.new_entry do |entry| entry.copy_lstat(file_name) entry.pathname = file_name if entry.symbolic_link? linked = File.readlink(file_name) entry.symlink = linked end writer.write_header(entry) if entry.regular? writer.write_data(open(file_name) {|f| f.binmode; f.read }) end end end end end end |
#delete_and_recreate_directory(dir) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 295 def delete_and_recreate_directory(dir) FileUtils.rm_rf(dir) FileUtils.mkdir_p(dir) end |
#download(url, path) ⇒ Object
Returns whether the file was not downloaded because the file already exists and is already up-to-date.
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# File 'lib/fig/operating_system.rb', line 163 def download(url, path) FileUtils.mkdir_p(File.dirname(path)) uri = URI.parse(url) case uri.scheme when 'ftp' begin ftp = Net::FTP.new(uri.host) ftp_login(ftp, uri.host) if File.exist?(path) && ftp.mtime(uri.path) <= File.mtime(path) Fig::Logging.debug "#{path} is up to date." return false else log_download(url, path) ftp.getbinaryfile(uri.path, path, 256*1024) return true end rescue Net::FTPPermError => error Fig::Logging.debug error. raise Fig::NotFoundError.new error., url rescue SocketError => error Fig::Logging.debug error. raise Fig::NotFoundError.new error., url end when 'http' log_download(url, path) File.open(path, 'wb') do |file| file.binmode begin download_via_http_get(url, file) rescue SystemCallError => error Fig::Logging.debug error. raise Fig::NotFoundError.new error., url rescue SocketError => error Fig::Logging.debug error. raise Fig::NotFoundError.new error., url end end when 'ssh' # TODO need better way to do conditional download = File.exist?(path) ? File.mtime(path).to_i : 0 # Requires that remote installation of fig be at the same location as the local machine. cmd = `which fig-download`.strip + " #{} #{uri.path}" log_download(url, path) ssh_download(uri.user, uri.host, path, cmd) when 'file' begin FileUtils.cp(uri.path, path) return true rescue Errno::ENOENT => error raise Fig::NotFoundError.new error., url end else Fig::Logging.fatal "Unknown protocol: #{url}" raise Fig::NetworkError.new("Unknown protocol: #{url}") end end |
#download_and_unpack_archive(url, download_directory) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 234 def download_and_unpack_archive(url, download_directory) basename, path = download_resource(url, download_directory) case basename when /\.tar\.gz$/ unpack_archive(download_directory, path) when /\.tgz$/ unpack_archive(download_directory, path) when /\.tar\.bz2$/ unpack_archive(download_directory, path) when /\.zip$/ unpack_archive(download_directory, path) else Fig::Logging.fatal "Unknown archive type: #{basename}" raise Fig::NetworkError.new("Unknown archive type: #{basename}") end return end |
#download_ftp_list(uri, dirs) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 122 def download_ftp_list(uri, dirs) # Run a bunch of these in parallel since they're slow as hell num_threads = (ENV['FIG_FTP_THREADS'] || '16').to_i threads = [] all_packages = [] (0..num_threads-1).each { |num| all_packages[num] = [] } (0..num_threads-1).each do |num| threads << Thread.new do packages = all_packages[num] ftp = Net::FTP.new(uri.host) ftp_login(ftp, uri.host) ftp.chdir(uri.path) pos = num while pos < dirs.length pkg = dirs[pos] begin ftp.nlst(dirs[pos]).each do |ver| packages << pkg + '/' + ver end rescue Net::FTPPermError # Ignore this error because it's indicative of the FTP library # encountering a file or directory that it does not have # permission to open. Fig needs to be able to have secure # repos/packages and there is no way easy way to deal with the # permissions issues other than consuming these errors. # # Actually, with FTP, you can't tell the difference between a # file not existing and not having permission to access it (which # is probably a good thing). end pos += num_threads end ftp.close end end threads.each { |thread| thread.join } all_packages.flatten.sort end |
#download_list(url) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 84 def download_list(url) begin uri = URI.parse(url) rescue Fig::Logging.fatal %Q<Unable to parse url: "#{url}"> raise Fig::NetworkError.new end case uri.scheme when 'ftp' ftp = Net::FTP.new(uri.host) ftp_login(ftp, uri.host) ftp.chdir(uri.path) dirs = ftp.nlst ftp.close download_ftp_list(uri, dirs) when 'ssh' packages = [] Net::SSH.start(uri.host, uri.user) do |ssh| ls = ssh.exec!("[ -d #{uri.path} ] && find #{uri.path}") strip_paths_for_list(ls, packages, uri.path) end packages when 'file' packages = [] return packages if ! File.exist?(uri.path) ls = '' Find.find(uri.path) { |file| ls << file.to_s; ls << "\n" } strip_paths_for_list(ls, packages, uri.path) return packages else Fig::Logging.fatal "Protocol not supported: #{url}" raise Fig::NetworkError.new("Protocol not supported: #{url}") end end |
#download_resource(url, download_directory) ⇒ Object
Returns the basename and full path to the download.
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# File 'lib/fig/operating_system.rb', line 223 def download_resource(url, download_directory) FileUtils.mkdir_p(download_directory) basename = URI.parse(url).path.split('/').last path = File.join(download_directory, basename) download(url, path) return basename, path end |
#ftp_login(ftp, host) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 44 def ftp_login(ftp, host) if @login rc = Net::Netrc.locate(host) if rc @username = rc.login @password = rc.password end ftp.login(get_username, get_password) else ftp.login() end ftp.passive = true end |
#get_password ⇒ Object
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# File 'lib/fig/operating_system.rb', line 39 def get_password() # #ask() comes from highline @password ||= ask('Password: ') { |q| q.echo = false } end |
#get_username ⇒ Object
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# File 'lib/fig/operating_system.rb', line 34 def get_username() # #ask() comes from highline @username ||= ask('Username: ') { |q| q.echo = true } end |
#list(dir) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 58 def list(dir) Dir.entries(dir) - ['.','..'] end |
#log_info(msg) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 322 def log_info(msg) Fig::Logging.info msg end |
#move_file(dir, from, to) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 318 def move_file(dir, from, to) Dir.chdir(dir) { FileUtils.mv(from, to, :force => true) } end |
#mtime(path) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 62 def mtime(path) File.mtime(path) end |
#shell_exec(cmd) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 385 def shell_exec(cmd) # Kernel#exec won't run Kernel#at_exit handlers. Fig::AtExit.execute() if ENV['FIG_COVERAGE'] SimpleCov.at_exit.call end if Fig::OperatingSystem.windows? Kernel.exec(ENV['ComSpec'], '/c', cmd.join(' ')) else Kernel.exec(ENV['SHELL'], '-c', cmd.join(' ')) end end |
#strip_paths_for_list(ls_output, packages, path) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 74 def strip_paths_for_list(ls_output, packages, path) if not ls_output.nil? ls_output = ls_output.gsub(path + '/', '').gsub(path, '').split("\n") ls_output.each do |line| parts = line.gsub(/\\/, '/').sub(/^\.\//, '').sub(/:$/, '').chomp().split('/') packages << parts.join('/') if parts.size == 2 end end end |
#unpack_archive(dir, file) ⇒ Object
This method can handle the following archive types: .tar.bz2 .tar.gz .tgz .zip
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# File 'lib/fig/operating_system.rb', line 359 def unpack_archive(dir, file) Dir.chdir(dir) do if Fig::OperatingSystem.java? `tar xzvf #{file}` else ::Archive.read_open_filename(file) do |reader| while entry = reader.next_header reader.extract(entry) end end end end end |
#upload(local_file, remote_file) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 254 def upload(local_file, remote_file) Fig::Logging.debug "Uploading #{local_file} to #{remote_file}." uri = URI.parse(remote_file) case uri.scheme when 'ssh' ssh_upload(uri.user, uri.host, local_file, remote_file) when 'ftp' # fail unless system "curl -T #{local_file} --create-dirs --ftp-create-dirs #{remote_file}" require 'net/ftp' ftp_uri = URI.parse(ENV['FIG_REMOTE_URL']) ftp_root_path = ftp_uri.path ftp_root_dirs = ftp_uri.path.split('/') remote_publish_path = uri.path[0, uri.path.rindex('/')] remote_publish_dirs = remote_publish_path.split('/') # Use array subtraction to deduce which project/version folder to upload to, # i.e. [1,2,3] - [2,3,4] = [1] remote_project_dirs = remote_publish_dirs - ftp_root_dirs Net::FTP.open(uri.host) do |ftp| ftp_login(ftp, uri.host) # Assume that the FIG_REMOTE_URL path exists. ftp.chdir(ftp_root_path) remote_project_dirs.each do |dir| # Can't automatically create parent directories, so do it manually. if ftp.nlst().index(dir).nil? ftp.mkdir(dir) ftp.chdir(dir) else ftp.chdir(dir) end end ftp.putbinaryfile(local_file) end when 'file' FileUtils.mkdir_p(File.dirname(uri.path)) FileUtils.cp(local_file, uri.path) else Fig::Logging.fatal "Unknown protocol: #{uri}" raise Fig::NetworkError.new("Unknown protocol: #{uri}") end end |
#write(path, content) ⇒ Object
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# File 'lib/fig/operating_system.rb', line 66 def write(path, content) File.open(path, 'wb') { |f| f.binmode; f << content } end |