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Journal

spec_driven_docs::transaction::journal

Struct Journal 

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pub struct Journal { /* private fields */ }
Expand description

An open journal. Its file exists until Journal::finish removes it.

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impl Journal

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pub fn begin( path: &Utf8Path, backups: &Utf8Path, entries: Vec<Entry>, ) -> Result<Self, AppError>

Write the journal before the first replacement.

§Errors

Any I/O error writing or syncing the journal.

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pub fn mark_done(&mut self, destination: &Utf8Path) -> Result<(), AppError>

Mark one destination as reached, and rewrite the journal.

§Errors

Any I/O error rewriting the journal.

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pub fn roll_back(&self) -> Result<(), AppError>

Put every reached destination back, then remove the journal.

§Errors

AppError::Unrecovered when a destination cannot be put back.

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pub fn finish(&mut self) -> Result<(), AppError>

Remove the journal, ending the run.

§Errors

Any I/O error removing the journal or syncing its directory.

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pub const fn record(&self) -> &Record

What this run recorded, for a test that inspects it.

Trait Implementations§

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impl Debug for Journal

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

Formats the value using the given formatter. Read more

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const ALIGN: usize

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type Init = T

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type Output = T

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

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