--- a/Plugins/VcsPlugins/vcsMercurial/HgUtilities.py Sun Nov 06 13:39:36 2016 +0100
+++ b/Plugins/VcsPlugins/vcsMercurial/HgUtilities.py Sun Nov 06 17:02:45 2016 +0100
@@ -10,8 +10,9 @@
from __future__ import unicode_literals
import os
+import re
-from PyQt5.QtCore import QProcessEnvironment
+from PyQt5.QtCore import QProcess, QProcessEnvironment, QCoreApplication
import Utilities
@@ -50,3 +51,59 @@
env.insert("LANGUAGE", language)
proc.setProcessEnvironment(env)
+
+
+def hgVersion(plugin):
+ """
+ Public method to determine the Mercurial version.
+
+ @param plugin reference to the plugin object
+ @type VcsMercurialPlugin
+ @return tuple containing the Mercurial version as a string and as a tuple
+ and an error message.
+ @rtype tuple of str, tuple of int and str
+ """
+ versionStr = ""
+ version = ()
+ errorMsg = ""
+
+
+ args = ["version"]
+ args.extend(plugin.getGlobalOptions())
+ process = QProcess()
+ process.start('hg', args)
+ procStarted = process.waitForStarted(5000)
+ if procStarted:
+ finished = process.waitForFinished(30000)
+ if finished and process.exitCode() == 0:
+ output = str(process.readAllStandardOutput(),
+ plugin.getPreferences("Encoding"), 'replace')
+ versionStr = output.splitlines()[0].split()[-1][0:-1]
+ v = list(re.match(r'.*?(\d+)\.(\d+)\.?(\d+)?(\+[0-9a-f-]+)?',
+ versionStr).groups())
+ if v[-1] is None:
+ del v[-1]
+ for i in range(3):
+ try:
+ v[i] = int(v[i])
+ except TypeError:
+ v[i] = 0
+ except IndexError:
+ v.append(0)
+ version = tuple(v)
+ else:
+ if finished:
+ errorMsg = QCoreApplication.translate(
+ "HgUtilities",
+ "The hg process finished with the exit code {0}")\
+ .format(process.exitCode())
+ else:
+ errorMsg = QCoreApplication.translate(
+ "HgUtilities",
+ "The hg process did not finish within 30s.")
+ else:
+ errorMsg = QCoreApplication.translate(
+ "HgUtilities",
+ "Could not start the hg executable.")
+
+ return versionStr, version, errorMsg
