Current File : //opt/cpanel/ea-ruby27/root/usr/share/passenger/phusion_passenger/standalone/app_finder.rb
# Phusion Passenger - https://www.phusionpassenger.com/
# Copyright (c) 2010-2017 Phusion Holding B.V.
#
# "Passenger", "Phusion Passenger" and "Union Station" are registered
# trademarks of Phusion Holding B.V.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
PhusionPassenger.require_passenger_lib 'ruby_core_enhancements'
PhusionPassenger.require_passenger_lib 'standalone/config_utils'
PhusionPassenger.require_passenger_lib 'utils/file_system_watcher'
module PhusionPassenger
module Standalone
class AppFinder
STARTUP_FILES = [
"config.ru",
"passenger_wsgi.py",
"app.js",
".meteor"
]
WATCH_ENTRIES = [
"config", "Passengerfile.json", "passenger-standalone.json"
]
attr_accessor :dirs
attr_reader :apps
attr_reader :execution_root
def self.supports_multi?
false
end
def initialize(dirs, options = {}, local_options = {})
@dirs = dirs
@options = options.dup
determine_mode_and_execution_root(options, local_options)
end
def scan
apps = []
watchlist = []
if single_mode?
app_root = find_app_root
apps << {
:server_names => ["_"],
:root => app_root
}
watchlist << app_root
WATCH_ENTRIES.each do |entry|
if File.exist?("#{app_root}/#{entry}")
watchlist << "#{app_root}/#{entry}"
end
end
apps.map! do |app|
@options.merge(app)
end
end
@apps = apps
@watchlist = watchlist
return apps
end
def monitor(termination_pipe)
raise "You must call #scan first" if !@apps
watcher = PhusionPassenger::Utils::FileSystemWatcher.new(@watchlist, termination_pipe)
if wait_on_io(termination_pipe, 3)
return
end
while true
changed = watcher.wait_for_change
watcher.close
if changed
old_apps = @apps
# The change could be caused by a write to some Passengerfile.json file.
# Wait for a short period so that the write has a chance to finish.
if wait_on_io(termination_pipe, 0.25)
return
end
new_apps = scan
watcher = PhusionPassenger::Utils::FileSystemWatcher.new(@watchlist, termination_pipe)
if old_apps != new_apps
yield(new_apps)
end
# Don't process change events again for a short while,
# but do detect changes while waiting.
if wait_on_io(termination_pipe, 3)
return
end
else
return
end
end
ensure
watcher.close if watcher
end
def single_mode?
return @mode == :single
end
def multi_mode?
return !single_mode?
end
##################
private
class ConfigLoadError < StandardError
end
def find_app_root
if @dirs.empty?
return File.absolute_logical_path(".")
else
return File.absolute_logical_path(@dirs[0])
end
end
# Only pass `local_options` if the directory that you're checking is
# the directory that should be used in single mode.
#
# `local_options` must be the the value obtained from
# `ConfigUtils.load_local_config_file_from_app_dir_param!`.
def looks_like_app_directory?(dir, options = {}, local_options = {})
options = options.dup
ConfigUtils.load_local_config_file!(dir, options)
options[:app_type] ||
options[:app_start_command] ||
STARTUP_FILES.any? do |file|
File.exist?("#{dir}/#{file}")
end
end
def filename_to_server_names(filename)
basename = File.basename(filename)
names = [basename]
if basename !~ /^www\.$/i
names << "www.#{basename}"
end
return names
end
# Wait until the given IO becomes readable, or until the timeout has
# been reached. Returns true if the IO became readable, false if the
# timeout has been reached.
def wait_on_io(io, timeout)
return !!select([io], nil, nil, timeout)
end
def determine_mode_and_execution_root(options, local_options)
@mode = :single
if @dirs.empty?
@execution_root = Dir.logical_pwd
elsif @dirs.size == 1
@execution_root = File.absolute_logical_path(@dirs[0])
else
@execution_root = Dir.logical_pwd
end
end
##################
end
end # module Standalone
end # module PhusionPassenger
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