Struct QgroupCommand 

pub struct QgroupCommand {
    pub subcommand: QgroupSubcommand,
}

Manage quota groups.

Quota groups (qgroups) track and limit disk usage at the subvolume level. Each subvolume automatically gets a level-0 qgroup (e.g. 0/256 for subvolume 256) that tracks how much data it references and how much is exclusive to it. Qgroups cannot be applied to individual files or directories within a subvolume, only to whole subvolumes. This is why per-directory quotas on btrfs require creating separate subvolumes.

Higher-level qgroups (1/0, 2/0, …) are user-created containers that aggregate the usage of their member subvolumes and can enforce a shared limit across all of them. For example, assigning several user home subvolumes to a single level-1 qgroup lets you cap their combined usage.

Quotas must be enabled first with “btrfs quota enable”. Most operations require CAP_SYS_ADMIN.

Fields

subcommand: QgroupSubcommand

Trait Implementations

impl Args for QgroupCommand

fn group_id() -> Option<Id>

Report the ArgGroup::id for this set of arguments

fn augment_args<'b>(__clap_app: Command) -> Command

Append to Command so it can instantiate Self via FromArgMatches::from_arg_matches_mut

fn augment_args_for_update<'b>(__clap_app: Command) -> Command

Append to Command so it can instantiate self via FromArgMatches::update_from_arg_matches_mut

impl CommandFactory for QgroupCommand

fn command<'b>() -> Command

Build a Command that can instantiate Self.

fn command_for_update<'b>() -> Command

Build a Command that can update self.

impl CommandGroup for QgroupCommand

fn leaf(&self) -> &dyn Runnable

impl Debug for QgroupCommand

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl FromArgMatches for QgroupCommand

fn from_arg_matches(__clap_arg_matches: &ArgMatches) -> Result<Self, Error>

Instantiate Self from ArgMatches, parsing the arguments as needed.

fn from_arg_matches_mut( __clap_arg_matches: &mut ArgMatches, ) -> Result<Self, Error>

Instantiate Self from ArgMatches, parsing the arguments as needed.

fn update_from_arg_matches( &mut self, __clap_arg_matches: &ArgMatches, ) -> Result<(), Error>

Assign values from ArgMatches to self.

fn update_from_arg_matches_mut( &mut self, __clap_arg_matches: &mut ArgMatches, ) -> Result<(), Error>

Assign values from ArgMatches to self.

impl Parser for QgroupCommand

fn parse() -> Self

Parse from std::env::args_os(), exit on error.

fn try_parse() -> Result<Self, Error>

Parse from std::env::args_os(), return Err on error.

fn parse_from<I, T>(itr: I) -> Self

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Parse from iterator, exit on error.

fn try_parse_from<I, T>(itr: I) -> Result<Self, Error>

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Parse from iterator, return Err on error.

fn update_from<I, T>(&mut self, itr: I)

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Update from iterator, exit on error.

fn try_update_from<I, T>(&mut self, itr: I) -> Result<(), Error>

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Update from iterator, return Err on error.