def downloadInfo(self, successCallback, failureCallback):
'''
executes version info download in separate thread,
then runs callback in main thread when download completes or fails
'''
import maya.utils
import urllib2
import urllib
import json
import threading
mayaVersion = str(self.roundMayaVersion(Utils.getMayaVersion()))
resource = "ngSkinTools-v1-" + Utils.getOs() + "-maya" + mayaVersion
endpoint = "https://versiondb.ngskintools.com/releases/" + resource + "?" + urllib.urlencode(
{
'currentVersion': version.pluginVersion(),
'buildWatermark': version.buildWatermark(),
'uniqueClientId': version.uniqueClientId(),
})
def runnerFunc():
try:
result = urllib2.urlopen(endpoint).read()
maya.utils.executeDeferred(successCallback, json.loads(result))
except Exception, err:
maya.utils.executeDeferred(failureCallback, str(err))
def getRlmHostId(self):
'''
executes RLM host id and returns the result
'''
import subprocess
import os.path as path
toolsPath = path.abspath(
path.join(path.dirname(__file__), "..", "tools"))
operatingSystem = Utils.getOs()
isLinux = operatingSystem == "linux"
isOsx = operatingSystem == 'mac'
useTemporaryExecutable = isLinux or isOsx
rlmHostId = "rlmhostid.exe"
if isLinux:
rlmHostId = "rlmhostid-linux"
if isOsx:
rlmHostId = "rlmhostid-osx"
executeCommand = [path.join(toolsPath, rlmHostId)]
executeCommand.append("-q")
if useTemporaryExecutable:
# some instalation methods (extracting a zip) might not set the executable flags,
# and we are probably better of just making a temporary executable with proper flags
# ...and we've just discovered that the executable needs to be called exactly "rlmhostid"
import tempfile, shutil, os
temporaryDirectory = tempfile.mkdtemp()
temporaryExecutable = os.path.join(temporaryDirectory, "rlmhostid")
shutil.copy2(executeCommand[0], temporaryExecutable)
executeCommand[0] = temporaryExecutable
os.chmod(executeCommand[0], 0777)
try:
result = subprocess.check_output(executeCommand,
stdin=subprocess.PIPE).strip()
finally:
if useTemporaryExecutable:
os.unlink(temporaryExecutable)
os.rmdir(temporaryDirectory)
# rlmhostid returns zero even in case of errors; rely on the output to detect execution errors
if "rlmhostid" in result: # probably some kind of errors showing tool usage
raise Exception("rlmhostid failed to execute.")
return result
