def test_library_folder(self):
"""
Test retrieving/setting the library folder
"""
self.assertIn('/profiles/default/processing/rlibs', RUtils.r_library_folder())
ProcessingConfig.setSettingValue(RUtils.R_LIBS_USER, '/usr/local')
self.assertEqual(RUtils.r_library_folder(), '/usr/local')
ProcessingConfig.setSettingValue(RUtils.R_LIBS_USER, None)
self.assertIn('/profiles/default/processing/rlibs', RUtils.r_library_folder())
def build_script_header_commands(self, _, __, ___):
"""
Builds the set of script startup commands for the algorithm
"""
commands = list()
# Just use main mirror
commands.append('options("repos"="{}")'.format(RUtils.package_repo()))
# Try to install packages if needed
if RUtils.use_user_library():
commands.append('.libPaths(\"' +
str(RUtils.r_library_folder()).replace('\\', '/') +
'\")')
packages = RUtils.get_required_packages(self.script)
packages.extend(['rgdal', 'raster'])
for p in packages:
commands.append('tryCatch(find.package("' + p +
'"), error=function(e) install.packages("' + p +
'", dependencies=TRUE))')
commands.append('library("raster")')
commands.append('library("rgdal")')
return commands
def load(self):
"""
Called when first loading provider
"""
ProcessingConfig.settingIcons[self.name()] = self.icon()
ProcessingConfig.addSetting(
Setting(self.name(), 'ACTIVATE_R', self.tr('Activate'), False))
ProcessingConfig.addSetting(
Setting(self.name(),
RUtils.RSCRIPTS_FOLDER,
self.tr('R scripts folder'),
RUtils.default_scripts_folder(),
valuetype=Setting.MULTIPLE_FOLDERS))
ProcessingConfig.addSetting(
Setting(self.name(), 'ACTIVATE_R', self.tr('Activate'), False))
ProcessingConfig.addSetting(
Setting(
self.name(), RUtils.R_USE_USER_LIB,
self.tr('Use user library folder instead of system libraries'),
True))
ProcessingConfig.addSetting(
Setting(self.name(),
RUtils.R_LIBS_USER,
self.tr('User library folder'),
RUtils.r_library_folder(),
valuetype=Setting.FOLDER))
ProcessingConfig.addSetting(
Setting(self.name(),
RUtils.R_REPO,
self.tr('Package repository'),
"http://cran.at.r-project.org/",
valuetype=Setting.STRING))
ProcessingConfig.addSetting(
Setting(self.name(),
RUtils.R_FOLDER,
self.tr('R folder'),
RUtils.r_binary_folder(),
valuetype=Setting.FOLDER))
if RUtils.is_windows():
ProcessingConfig.addSetting(
Setting(self.name(), RUtils.R_USE64,
self.tr('Use 64 bit version'), False))
ProviderActions.registerProviderActions(self, self.actions)
ProviderContextMenuActions.registerProviderContextMenuActions(
self.contextMenuActions)
ProcessingConfig.readSettings()
self.refreshAlgorithms()
return True
