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#!/usr/bin/env python
from __future__ import with_statement
import vim
import os
import subprocess
import threading
import Queue
class Asyncer:
def __init__(self):
self._workers = {}
def execute(self, var_key, var_command, var_cwd, var_input, var_appends):
key = vim.eval(var_key)
command = vim.eval(var_command)
cwd = vim.eval(var_cwd)
input = vim.eval(var_input)
appends = vim.eval(var_appends)
if key not in self._workers:
self._workers[key] = Worker()
self._workers[key].start()
self._workers[key].put(Executor(command, cwd, input, appends))
def print_output(self, var_key):
key = vim.eval(var_key)
if key not in self._workers:
return
for l in self._workers[key].copy_outputs():
print l,
def print_worker_keys(self):
for k in self._workers.keys():
print k
def print_active_worker_keys(self):
for k in self._workers.keys():
print k
class Worker(threading.Thread):
def __init__(self):
threading.Thread.__init__(self)
self._queue = Queue.Queue()
self._lines = []
self._lock = threading.Lock()
def run(self):
while True:
self._queue.get().execute(self)
self._queue.task_done()
def put(self, executor):
self._queue.put(executor)
def clear_outputs(self):
with self._lock:
self._lines = []
def record_output(self, line):
with self._lock:
self._lines.append(line)
def copy_outputs(self):
with self._lock:
return self._lines[:]
class Executor:
def __init__(self, command, cwd, input, appends):
self._command = command
self._cwd = cwd
self._input = input
self._appends = appends
def execute(self, worker):
if not self._appends:
worker.clear_outputs()
os.chdir(self._cwd)
p = subprocess.Popen(self._command, shell=True, stdin=subprocess.PIPE,
stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
p.stdin.write(self._input)
line = p.stdout.readline()
while line:
worker.record_output(line)
line = p.stdout.readline()
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