Package index • getaca

Retrieval

The single front door

getaca(): Get a declared external resource
getaca_prefetch(): Warm the cache ahead of time

Progress

What a transfer looks like

getaca-progress: How a transfer reports itself
getaca_progress(): Choose how transfers report progress
reporter(): Write a progress reporter

Declaration

What a package says it needs

resource(): Declare an immutable resource record
resource_id(): Identify a resource
part(): Declare one part of a resource
combiner(): Declare how parts are combined
processor(): Declare a post-download processor
unpack(): Unpack an archive or a compressed file
registry(): Declare a package's external resources
registry_draft(): Draft a registry from where the data is
registry_write() registry_read(): Read and write registry files
registry_for(): Find the registry a package ships
registry_digest(): Content identity of a registry
registry_manifest(): The canonical form a registry hashes to
as_registry(): Convert an authoring format into a registry
getaca_refresh(): Forget cached registry state

Resolution

Which record a name resolves to

resolve_resource(): Resolve a name to an immutable resource record
getaca_policy(): Resolution policy and settings
getaca_pin(): Freeze current resolution into a pin file

Signing

Who a remote registry came from

getaca-signing: Signing a registry
registry_keygen(): Create a signing key
registry_sign(): Sign a registry file
registry_verify(): Verify a signed registry file

Credentials

Naming what a host requires, without holding it

bearer() basic() auth_host(): Declaring a credential without holding one
getaca_credentials(): Which credentials a package expects

Checks and Offline Use

Behaving during R CMD check

getaca_available() getaca_optional() getaca_skip_if_unavailable(): Behave during checks, examples and tests

Provenance

Where a file came from

getaca_info(): Provenance for a resource
getaca_catalogue(): What is declared, and what is cached

Cache Management

Retention and removal

getaca_clean(): Active cache management
getaca_keep(): Keep a resource from being collected
getaca_cache_dir(): Where getaca stores things

Conditions

The failure taxonomy

getaca-conditions: Failure taxonomy