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# -*- coding: utf-8 -*-
"""
***************************************************************************
py
---------------------
Date : August 2012
Copyright : (C) 2012 by Victor Olaya
Email : volayaf at gmail dot com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************
"""
__author__ = 'Victor Olaya'
__date__ = 'August 2012'
__copyright__ = '(C) 2012, Victor Olaya'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import os
import time
import sys
import uuid
from PyQt4.QtCore import QFileInfo, QDir
from qgis.core import QgsApplication
numExported = 1
def userFolder():
userDir = os.path.join(QgsApplication.qgisSettingsDirPath(), 'processing')
if not QDir(userDir).exists():
QDir().mkpath(userDir)
return unicode(QDir.toNativeSeparators(userDir))
def defaultOutputFolder():
folder = os.path.join(userFolder(), "outputs")
if not QDir(folder).exists():
QDir().mkpath(folder)
return unicode(QDir.toNativeSeparators(folder))
def isWindows():
return os.name == 'nt'
def isMac():
return sys.platform == 'darwin'
_tempFolderSuffix = unicode(uuid.uuid4()).replace('-', '')
def tempFolder():
tempDir = os.path.join(unicode(QDir.tempPath()), 'processing' + _tempFolderSuffix)
if not QDir(tempDir).exists():
QDir().mkpath(tempDir)
return unicode(os.path.abspath(tempDir))
def setTempOutput(out, alg):
if hasattr(out, 'directory'):
out.value = getTempDirInTempFolder()
else:
ext = out.getDefaultFileExtension(alg)
out.value = getTempFilenameInTempFolder(out.name + '.' + ext)
def getTempFilename(ext=None):
path = tempFolder()
if ext is None:
filename = path + os.sep + unicode(time.time()) \
+ unicode(getNumExportedLayers())
else:
filename = path + os.sep + unicode(time.time()) \
+ unicode(getNumExportedLayers()) + '.' + ext
return filename
def getTempFilenameInTempFolder(basename):
"""Returns a temporary filename for a given file, putting it into
a temp folder but not changing its basename.
"""
path = tempFolder()
path = os.path.join(path, unicode(uuid.uuid4()).replace('-', ''))
mkdir(path)
basename = removeInvalidChars(basename)
filename = os.path.join(path, basename)
return filename
def getTempDirInTempFolder():
"""Returns a temporary directory, putting it into a temp folder.
"""
path = tempFolder()
path = os.path.join(path, unicode(uuid.uuid4()).replace('-', ''))
mkdir(path)
return path
def removeInvalidChars(string):
validChars = \
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789:.'
string = ''.join(c for c in string if c in validChars)
return string
def getNumExportedLayers():
global numExported
numExported += 1
return numExported
def mkdir(newdir):
newdir = newdir.strip('\n\r ')
if os.path.isdir(newdir):
pass
else:
(head, tail) = os.path.split(newdir)
if head and not os.path.isdir(head):
mkdir(head)
if tail:
os.mkdir(newdir)
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