mirror of
https://github.com/overleaf/overleaf.git
synced 2024-12-01 16:01:32 -05:00
43 lines
1.2 KiB
CoffeeScript
43 lines
1.2 KiB
CoffeeScript
_ = require("underscore")
|
|
logger = require("logger-sharelatex")
|
|
child_process = require('child_process')
|
|
|
|
# execute a command in the same way as 'exec' but with a timeout that
|
|
# kills all child processes
|
|
#
|
|
# we spawn the command with 'detached:true' to make a new process
|
|
# group, then we can kill everything in that process group.
|
|
|
|
module.exports = (command, options, callback = (err, stdout, stderr) ->) ->
|
|
# options are {timeout: number-of-milliseconds, killSignal: signal-name}
|
|
[cmd, args...] = command
|
|
|
|
child = child_process.spawn cmd, args, {detached:true}
|
|
stdout = ""
|
|
stderr = ""
|
|
|
|
cleanup = _.once (err) ->
|
|
clearTimeout killTimer if killTimer?
|
|
callback err, stdout, stderr
|
|
|
|
if options.timeout?
|
|
killTimer = setTimeout () ->
|
|
try
|
|
# use negative process id to kill process group
|
|
process.kill -child.pid, options.killSignal || "SIGTERM"
|
|
catch error
|
|
logger.log process: child.pid, kill_error: error, "error killing process"
|
|
, options.timeout
|
|
|
|
child.on 'close', (code, signal) ->
|
|
err = if code then new Error("exit status #{code}") else signal
|
|
cleanup err
|
|
|
|
child.on 'error', (err) ->
|
|
cleanup err
|
|
|
|
child.stdout.on 'data', (chunk) ->
|
|
stdout += chunk
|
|
|
|
child.stderr.on 'data', (chunk) ->
|
|
stderr += chunk
|