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Copy pathshell.rb
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68 lines (53 loc) · 1.69 KB
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require "timeout"
require "benchmark"
module MiniMagick
##
# Sends commands to the shell (more precisely, it sends commands directly to
# the operating system).
#
# @private
#
class Shell
def run(command, options = {})
stdout, stderr, status = execute(command, stdin: options[:stdin])
case status
when 1
fail MiniMagick::Error, "`#{command.join(" ")}` failed with error:\n#{stderr}"
when 127
fail MiniMagick::Error, stderr
end if options.fetch(:whiny, MiniMagick.whiny)
$stderr.print(stderr) unless options[:stderr] == false
[stdout, stderr, status]
end
def execute(command, options = {})
stdout, stderr, status =
log(command.join(" ")) do
Timeout.timeout(MiniMagick.timeout) do
send("execute_#{MiniMagick.shell_api.gsub("-", "_")}", command, options)
end
end
[stdout, stderr, status.exitstatus]
rescue Errno::ENOENT, IOError
["", "executable not found: \"#{command.first}\"", 127]
end
private
def execute_open3(command, options = {})
require "open3"
Open3.capture3(*command, binmode: true, stdin_data: options[:stdin].to_s)
end
def execute_posix_spawn(command, options = {})
require "posix-spawn"
pid, stdin, stdout, stderr = POSIX::Spawn.popen4(*command)
[stdin, stdout, stderr].each(&:binmode)
stdin.write(options[:stdin].to_s)
Process.waitpid(pid)
[stdout.read, stderr.read, $?]
end
def log(command, &block)
value = nil
duration = Benchmark.realtime { value = block.call }
MiniMagick.logger.debug "[%.2fs] %s" % [duration, command]
value
end
end
end