blivet.tasks package¶

Submodules¶

blivet.tasks.availability module¶

class blivet.tasks.availability.AppVersionInfo(app_name, required_version, version_opt, version_regex)¶

Bases: object

Initializer.

Parameters:

app_name (str) – the name of the application
required_version (distutils.LooseVersion or NoneType) – the required version for this application
version_opt – command line option to print version of this application
version_regex – regular expression to extract version from output of @version_opt

class blivet.tasks.availability.BlockDevFSMethod(operation, check_fn, fstype)¶

Bases: Method

Methods for when application is actually a libblockdev FS plugin functionality.

Initializer.

Parameters:

operation – operation to check for support availability
check_fn – function used to check for support availability
fstype – filesystem type to check for the support availability

availability_errors(resource)¶

Returns [] if the plugin is loaded and functionality available.

Parameters:: resource (ExternalResource) – a libblockdev plugin
Returns:: [] if the name of the plugin is loaded
Return type:: list of str

class blivet.tasks.availability.BlockDevMethod(tech_info)¶

Bases: Method

Methods for when application is actually a libblockdev plugin.

Initializer.

:param AppVersionInfo version_info:

availability_errors(resource)¶

Returns [] if the plugin is loaded.

Parameters:: resource (ExternalResource) – a libblockdev plugin
Returns:: [] if the name of the plugin is loaded
Return type:: list of str

class blivet.tasks.availability.BlockDevTechInfo(plugin_name, check_fn, technologies)¶

Bases: object

Initializer.

Parameters:

plugin_name (str) – the name of the libblockdev plugin
check_fn – function used to check for support availability
technologies – list of required technologies

class blivet.tasks.availability.DBusMethod(dbus_name, dbus_path)¶

Bases: Method

Methods for when application is actually a DBus service.

Initializer.

:param AppVersionInfo version_info:

availability_errors(resource)¶

Returns [] if the service is available.

Parameters:: resource (ExternalResource) – a DBus service
Returns:: [] if the name of the plugin is loaded
Return type:: list of str

class blivet.tasks.availability.ExternalResource(method, name)¶

Bases: object

An external resource.

Initializes an instance of an external resource.

Parameters:

method (Method) – A method object
name (str) – the name of the external resource

property availability_errors¶

Whether the resource has any availability errors.

Returns:: [] if the resource is available
Return type:: list of str

property available¶

Whether the resource is available.

Returns:: True if the resource is available
Return type:: bool

class blivet.tasks.availability.FSOperation¶

Bases: object

INFO = 3¶

LABEL = 1¶

MKFS = 4¶

RESIZE = 2¶

UUID = 0¶

class blivet.tasks.availability.Method¶

Bases: object

Method for determining if external resource is available.

abstract availability_errors(resource)¶

Returns [] if the resource is available.

Parameters:: resource (ExternalResource) – any external resource
Returns:: [] if the external resource is available
Return type:: list of str

class blivet.tasks.availability.VersionMethod(version_info=None)¶

Bases: Method

Methods for checking the version of the external resource.

Initializer.

:param AppVersionInfo version_info:

availability_errors(resource)¶

Returns [] if the resource is available.

Parameters:: resource (ExternalResource) – any external resource
Returns:: [] if the external resource is available
Return type:: list of str

blivet.tasks.availability.application(name)¶

Construct an external resource that is an application.

This application will be available if its name can be found in $PATH.

blivet.tasks.availability.application_by_version(name, version_method)¶

Construct an external resource that is an application.

This application will be available if its name can be found in $PATH AND its version is at least the required version.

:param VersionMethod version_method: the version method

blivet.tasks.availability.available_resource(name)¶: Construct an external resource that is always available.

blivet.tasks.availability.blockdev_fs_plugin_operation(blockdev_fs_method)¶: Construct an external resource that is a libblockdev FS plugin functionality.

blivet.tasks.availability.blockdev_plugin(name, blockdev_method)¶: Construct an external resource that is a libblockdev plugin.

blivet.tasks.availability.dbus_service(name, dbus_method)¶: Construct an external resource that is a DBus service.

blivet.tasks.availability.unavailable_resource(name)¶: Construct an external resource that is always unavailable.

blivet.tasks.dfresize module¶

class blivet.tasks.dfresize.DFResizeTask¶

Bases: Task

The abstract properties that any resize task must have.

abstract property unit¶: Resize unit.

class blivet.tasks.dfresize.UnimplementedDFResize(a_df)¶

Bases: UnimplementedTask, DFResizeTask

Initializer.

Parameters:: a_df (DeviceFormat) – a device format object

property unit¶: Resize unit.

blivet.tasks.fsck module¶

class blivet.tasks.fsck.DosFSCK(an_fs)¶

Bases: FSCK

Initializer.

Parameters:: an_fs (FS) – a filesystem object

ext = <blivet.tasks.availability.ExternalResource object>¶

options = ['-n']¶

class blivet.tasks.fsck.Ext2FSCK(an_fs)¶

Bases: FSCK

Initializer.

Parameters:: an_fs (FS) – a filesystem object

ext = <blivet.tasks.availability.ExternalResource object>¶

options = ['-f', '-p']¶

class blivet.tasks.fsck.F2FSFSCK(an_fs)¶

Bases: FSCK

Initializer.

Parameters:: an_fs (FS) – a filesystem object

ext = <blivet.tasks.availability.ExternalResource object>¶

options = ['-a']¶

class blivet.tasks.fsck.FSCK(an_fs)¶

Bases: BasicApplication, FSTask

An abstract class that represents actions associated with checking consistency of a filesystem.

Initializer.

Parameters:: an_fs (FS) – a filesystem object

description = 'fsck'¶

do_task()¶

Check the filesystem.

Raises:: FSError – on failure

abstract property options¶: Options for invoking the application.

class blivet.tasks.fsck.HFSPlusFSCK(an_fs)¶

Bases: FSCK

Initializer.

Parameters:: an_fs (FS) – a filesystem object

ext = <blivet.tasks.availability.ExternalResource object>¶

options = []¶

class blivet.tasks.fsck.NTFSFSCK(an_fs)¶

Bases: FSCK

Initializer.

Parameters:: an_fs (FS) – a filesystem object

ext = <blivet.tasks.availability.ExternalResource object>¶

options = ['-c']¶

class blivet.tasks.fsck.UnimplementedFSCK(an_fs)¶

Bases: UnimplementedFSTask

Initializer.

Parameters:: an_fs (FS) – a filesystem object

class blivet.tasks.fsck.XFSCK(an_fs)¶

Bases: FSCK

Initializer.

Parameters:: an_fs (FS) – a filesystem object

ext = <blivet.tasks.availability.ExternalResource object>¶

options = []¶

blivet.tasks.fsinfo module¶

class blivet.tasks.fsinfo.Ext2FSInfo(an_fs)¶

Bases: FSInfo

Initializer.

Parameters:: an_fs (FS) – a filesystem object

ext = <blivet.tasks.availability.ExternalResource object>¶

class blivet.tasks.fsinfo.FSInfo(an_fs)¶

Bases: BasicApplication, FSTask

An abstract class that represents an information gathering app.

Initializer.

Parameters:: an_fs (FS) – a filesystem object

description = 'filesystem info'¶

do_task()¶

Returns information from the command.

Returns:: a string representing the output of the command
Return type:: str
Raises:: FSError – if info cannot be obtained

class blivet.tasks.fsinfo.NTFSInfo(an_fs)¶

Bases: FSInfo

Initializer.

Parameters:: an_fs (FS) – a filesystem object

ext = <blivet.tasks.availability.ExternalResource object>¶

class blivet.tasks.fsinfo.UnimplementedFSInfo(an_fs)¶

Bases: UnimplementedFSTask

Initializer.

Parameters:: an_fs (FS) – a filesystem object

class blivet.tasks.fsinfo.XFSInfo(an_fs)¶

Bases: FSInfo

Initializer.

Parameters:: an_fs (FS) – a filesystem object

ext = <blivet.tasks.availability.ExternalResource object>¶