Struct HotFolderChain 

pub struct HotFolderChain { /* private fields */ }

A chain of watch folders where the output of one feeds into the next.

This enables multi-step processing workflows, for example:

1. Ingest folder → transcode to intermediate format
2. Intermediate folder → apply effects / normalisation
3. Final folder → encode to delivery format

Implementations

impl HotFolderChain

pub fn new() -> Self

Creates a new empty chain.

pub fn add_stage(&mut self, config: WatchConfig)

Appends a stage to the chain.

The output directory of the previous stage should match the watch directory of this stage for seamless chaining.

pub fn stage_count(&self) -> usize

Returns the number of stages in the chain.

pub fn stages(&self) -> &[WatchConfig]

Returns the stages as a slice.

pub fn validate(&self) -> Result<()>

Validates that the chain is well-formed.

Checks that each stage’s output directory matches the next stage’s watch directory (for DoneSubDir and Fixed output locations).

Errors

Returns an error if the chain is empty or directories don’t align.

Trait Implementations

impl Clone for HotFolderChain

fn clone(&self) -> HotFolderChain

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HotFolderChain

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

Formats the value using the given formatter.

impl Default for HotFolderChain

fn default() -> Self

Returns the “default value” for a type.