cuttlefish::FetchBuildContext Class Reference

#include <fetch_context.h>

Collaboration diagram for cuttlefish::FetchBuildContext:

Public Member Functions
const cuttlefish::Build &	Build () const
std::string	GetBuildZipName (const std::string &) const
std::optional< std::string >	GetFilepath () const
FetchArtifact	Artifact (std::string artifact_name)

Private Member Functions
	FetchBuildContext (class FetchContext &, ::cuttlefish::Build, std::string_view target_directory, FileSource, FetchTracer::Trace)
Result< void >	DesparseFiles (std::vector< std::string > files)
Result< void >	AddFileToConfig (std::string file, std::string archive_name="", std::string archive_path="")

Private Attributes
class FetchContext &	fetch_context_
::cuttlefish::Build	build_
std::string	target_directory_
FileSource	file_source_
FetchTracer::Trace	trace_

Friends
class	FetchArtifact
class	FetchContext

Detailed Description

Wraps standard download operations with cross-cutting concerns:

• Tracing long-running operations with time used.
• Tracking the source build of created files.
• Placing files under the right target directory.
• Desparsing images.

File paths for return values and argument values are relative to the target directory.

By hiding the target directory from direct access, IO operations are funneled through an instance of this type, which guarantees none of the cross-cutting concerns are missed. Additionally, this could be replaced with a fake implementation later to support unit testing the business logic.

Constructor & Destructor Documentation

FetchBuildContext()

cuttlefish::FetchBuildContext::FetchBuildContext ( class FetchContext &  fetch_context, ::cuttlefish::Build  build, std::string_view  target_directory, FileSource  file_source, FetchTracer::Trace  trace  )

private

Member Function Documentation

AddFileToConfig()

Result< void > cuttlefish::FetchBuildContext::AddFileToConfig ( std::string  file, std::string  archive_name = "", std::string  archive_path = ""  )

private

Artifact()

FetchArtifact cuttlefish::FetchBuildContext::Artifact

(

std::string

artifact_name

)

Build()

const cuttlefish::Build & cuttlefish::FetchBuildContext::Build

(

)

const

DesparseFiles()

Result< void > cuttlefish::FetchBuildContext::DesparseFiles ( std::vector< std::string >  files )

private

GetBuildZipName()

std::string cuttlefish::FetchBuildContext::GetBuildZipName

(

const std::string &

name

)

const

GetFilepath()

std::optional< std::string > cuttlefish::FetchBuildContext::GetFilepath

(

)

const

Friends And Related Function Documentation

FetchArtifact

friend class FetchArtifact

friend

FetchContext

friend class FetchContext

friend

Member Data Documentation

build_

::cuttlefish::Build cuttlefish::FetchBuildContext::build_

private

fetch_context_

class FetchContext& cuttlefish::FetchBuildContext::fetch_context_

private

file_source_

FileSource cuttlefish::FetchBuildContext::file_source_

private

target_directory_

std::string cuttlefish::FetchBuildContext::target_directory_

private

trace_

FetchTracer::Trace cuttlefish::FetchBuildContext::trace_

private

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The documentation for this class was generated from the following files:

• cuttlefish/host/commands/cvd/fetch/fetch_context.h
• cuttlefish/host/commands/cvd/fetch/fetch_context.cc