rattler::install

Struct Transaction

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pub struct Transaction<Old, New> {
    pub operations: Vec<TransactionOperation<Old, New>>,
    pub python_info: Option<PythonInfo>,
    pub current_python_info: Option<PythonInfo>,
    pub platform: Platform,
    pub unchanged: Vec<Old>,
}
Expand description

Describes the operations to perform to bring an environment from one state into another.

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§operations: Vec<TransactionOperation<Old, New>>

A list of operations to update an environment

§python_info: Option<PythonInfo>

The python version of the target state, or None if python doesnt exist in the environment.

§current_python_info: Option<PythonInfo>

The python version of the current state, or None if python didnt exist in the previous environment.

§platform: Platform

The target platform of the transaction

§unchanged: Vec<Old>

The records that are not touched by the transaction.

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impl<Old: Clone, New: Clone> Transaction<&Old, &New>

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pub fn to_owned(self) -> Transaction<Old, New>

Own records.

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impl<Old, New> Transaction<Old, New>

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pub fn removed_packages(&self) -> impl Iterator<Item = &Old> + '_

Return an iterator over the prefix records of all packages that are going to be removed.

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pub fn unchanged_packages(&self) -> &[Old]

Return an iterator over the records that are not touched by the transaction

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pub fn packages_to_uninstall(&self) -> usize

Returns the number of records to install.

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impl<Old, New> Transaction<Old, New>

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pub fn installed_packages(&self) -> impl Iterator<Item = &New> + '_

Return an iterator over the prefix records of all packages that are going to be installed.

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pub fn packages_to_install(&self) -> usize

Returns the number of records to install.

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impl<Old, New> Transaction<Old, New>
where Old: ContentComparable, New: ContentComparable,

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pub fn from_current_and_desired<CurIter: IntoIterator<Item = Old>, NewIter: IntoIterator<Item = New>>( current: CurIter, desired: NewIter, reinstall: Option<&HashSet<PackageName>>, ignored: Option<&HashSet<PackageName>>, platform: Platform, ) -> Result<Self, TransactionError>

Constructs a Transaction by taking the current situation and diffing that against the desired situation. You can specify a set of package names that should be reinstalled even if their content has not changed. You can also specify a set of package names that should be ignored (left untouched).

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impl<New> Transaction<InstallationResultRecord, New>

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pub fn into_prefix_record( self, prefix: impl AsRef<Path>, ) -> Result<Transaction<PrefixRecord, New>, Error>

Convert transaction to contain PrefixRecord instead of InstallationResultRecord.

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impl<New> Transaction<PrefixRecord, New>

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pub fn into_installation_result_record( self, ) -> Transaction<InstallationResultRecord, New>

Convert transaction to contain InstallationResultRecord instead of PrefixRecord.

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impl<Old: Debug, New: Debug> Debug for Transaction<Old, New>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<Old, New> Freeze for Transaction<Old, New>

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impl<Old, New> RefUnwindSafe for Transaction<Old, New>
where Old: RefUnwindSafe, New: RefUnwindSafe,

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impl<Old, New> Send for Transaction<Old, New>
where Old: Send, New: Send,

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impl<Old, New> Sync for Transaction<Old, New>
where Old: Sync, New: Sync,

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impl<Old, New> Unpin for Transaction<Old, New>
where Old: Unpin, New: Unpin,

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impl<Old, New> UnwindSafe for Transaction<Old, New>
where Old: UnwindSafe, New: UnwindSafe,

Blanket Implementations§

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

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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,

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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,

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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

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<Unshared, Shared> IntoShared<Shared> for Unshared
where Shared: FromUnshared<Unshared>,

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Creates a shared type from an unshared type.
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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Dereferences the given pointer. Read more
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Mutably dereferences the given pointer. Read more
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Drops the object pointed to by the given pointer. Read more
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impl<T> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] only if self and other return Action::Follow. Read more
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where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] if either self or other returns Action::Follow. Read more
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The type returned in the event of a conversion error.
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Performs the conversion.
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where U: TryFrom<T>,

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

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where S: Into<Dispatch>,

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