Enum btm::SnapMode

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pub enum SnapMode {
    Zfs,
    Btrfs,
    External,
}

Expand description

Inner Operations

assume:

root volume of zfs is zfs
root volume of btrfs is /btrfs
business data is stored in <root volume>/data
target block height to recover is 123456

snapshot

zfs destroy zfs/data@123456 2>/dev/null
zfs snapshot zfs/data@123456

rm -rf /btrfs/data@123456 2>/dev/null
btrfs subvolume snapshot /btrfs/data /btrfs/data@123456

rollback

zfs rollback -r zfs/data@123456

rm -rf /btrfs/data || exit 1
btrfs subvolume snapshot /btrfs/data@123456 /btrfs/data

Variants

`Zfs`

available on some Linux distributions and FreeBSD

Ubuntu Linux
Gentoo Linux
FreeBSD
…

`Btrfs`

available on most Linux distributions, but its user experience is worse than zfs

`External`

TODO: unimplemented! rely on an external independent process

Implementations

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impl SnapMode

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pub fn from_string(m: &str) -> Result<Self>

Trait Implementations

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impl Clone for SnapMode

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fn clone(&self) -> SnapMode

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl Debug for SnapMode

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

Formats the value using the given formatter. Read more

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impl Default for SnapMode

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fn default() -> Self

Returns the “default value” for a type. Read more

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impl Display for SnapMode

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

Formats the value using the given formatter. Read more

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impl FromStr for SnapMode

type Err = String

The associated error which can be returned from parsing.

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fn from_str(s: &str) -> StdResult<Self, Self::Err>

Parses a string s to return a value of this type. Read more

Auto Trait Implementations

impl RefUnwindSafe for SnapMode

impl Send for SnapMode

impl Sync for SnapMode

impl Unpin for SnapMode

impl UnwindSafe for SnapMode

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Performs the conversion.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T> ToString for T where
T: Display + ?Sized,

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pub default fn to_string(&self) -> String

Converts the given value to a String. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Enum btm::SnapMode

Variants

Zfs

Btrfs

External

Implementations

impl SnapMode

pub fn from_string(m: &str) -> Result<Self>

Trait Implementations

impl Clone for SnapMode

fn clone(&self) -> SnapMode

fn clone_from(&mut self, source: &Self)

impl Debug for SnapMode

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

impl Default for SnapMode

fn default() -> Self

impl Display for SnapMode

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

impl FromStr for SnapMode

type Err = String

fn from_str(s: &str) -> StdResult<Self, Self::Err>

Auto Trait Implementations

impl RefUnwindSafe for SnapMode

impl Send for SnapMode

impl Sync for SnapMode

impl Unpin for SnapMode

impl UnwindSafe for SnapMode

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

pub fn to_owned(&self) -> T

pub fn clone_into(&self, target: &mut T)

impl<T> ToString for T where T: Display + ?Sized,

pub default fn to_string(&self) -> String

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for T where V: MultiLane<T>,

pub fn vzip(self) -> V

`Zfs`

`Btrfs`

`External`

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T> ToString for T where
T: Display + ?Sized,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,