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require "vagrant/util/shell_quote"
module VagrantPlugins
module DockerProvider
module Executor
# The Vagrant executor runs Docker over SSH against the given
# Vagrant-managed machine.
class Vagrant
def initialize(host_machine)
@host_machine = host_machine
end
def execute(*cmd, **opts, &block)
quote = '"'
cmd = cmd.map do |a|
"#{quote}#{::Vagrant::Util::ShellQuote.escape(a, quote)}#{quote}"
end.join(" ")
# If we want stdin, we just run in a full subprocess
return ssh_run(cmd) if opts[:stdin]
# Add a start fence so we know when to start reading output.
# We have to do this because boot2docker outputs a login shell
# boot2docker version that we get otherwise and messes up output.
start_fence = "========== VAGRANT DOCKER BEGIN =========="
ssh_cmd = "echo -n \"#{start_fence}\"; #{cmd}"
stderr = ""
stdout = ""
fenced = false
comm = @host_machine.communicate
code = comm.execute(ssh_cmd, error_check: false) do |type, data|
next if ![:stdout, :stderr].include?(type)
stderr << data if type == :stderr
stdout << data if type == :stdout
if !fenced
index = stdout.index(start_fence)
if index
fenced = true
index += start_fence.length
stdout = stdout[index..-1]
stdout.chomp!
# We're now fenced, send all the data through
if block
block.call(:stdout, stdout) if stdout != ""
block.call(:stderr, stderr) if stderr != ""
end
end
else
# If we're already fenced, just send the data through.
block.call(type, data) if block && fenced
end
end
if code != 0
raise Errors::ExecuteError,
command: cmd,
stderr: stderr.chomp,
stdout: stdout.chomp
end
stdout.chomp
end
def windows?
false
end
protected
def ssh_run(cmd)
@host_machine.action(
:ssh_run,
ssh_run_command: cmd,
)
""
end
end
end
end
end
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