ppi

Documentation

Overview

Package ppi provides the plugin programming interface. The ppi can be used by plugin developers as support. It reduces the command line interface to a corresponding Go interface. In other words, if the developer implements this Go plugin interface, the ppi automatically provides a corresponding command line interface.

Index

• Variables
• type AccessMethod
• type AccessMethodBase
  • func MustNewAccessMethodBase(name, version string, proto AccessSpec, desc string, format string) AccessMethodBase
  • func (b *AccessMethodBase) Description() string
  • func (b *AccessMethodBase) Format() string
  • func (b *AccessMethodBase) Name() string
  • func (b *AccessMethodBase) Version() string
• type AccessMethodDescriptor
• type AccessSpec
• type AccessSpecInfo
• type AccessSpecProvider
• type Action
• type ActionResult
• type ActionSpec
• type ActionSpecInfo
• type CLIOption
• type Config
  • func (c Config) GetValue(name string) (interface{}, bool)
• type ContentVersionIdentityProvider
• type Descriptor
• type DownloadResultProvider
• type Downloader
• type DownloaderDescriptor
• type DownloaderKey
• type Options
  • func (o *Options) AddFlags(fs *pflag.FlagSet)
• type Plugin
  • func NewPlugin(name string, version string) Plugin
• type UploadFormats
• type UploadTargetSpec
• type UploadTargetSpecInfo
• type Uploader
• type UploaderBase
  • func MustNewUploaderBase(name, desc string) UploaderBase
• type UploaderDescriptor
• type UploaderKey

Variables

var REALM = descriptor.REALM

Types

type AccessMethod

type AccessMethod interface {
	runtime.TypedObjectDecoder[AccessSpec]

	Name() string
	Version() string

	// Options provides the list of CLI options supported to compose the access
	// specification.
	Options() []options.OptionType

	// Description provides a general description for the access mehod kind.
	Description() string
	// Format describes the attributes of the dedicated version.
	Format() string

	ValidateSpecification(p Plugin, spec AccessSpec) (info *AccessSpecInfo, err error)
	Reader(p Plugin, spec AccessSpec, creds credentials.Credentials) (io.ReadCloser, error)
	ComposeAccessSpecification(p Plugin, opts Config, config Config) error
}

type AccessMethodBase

type AccessMethodBase struct {
	// contains filtered or unexported fields
}

func MustNewAccessMethodBase

func MustNewAccessMethodBase(name, version string, proto AccessSpec, desc string, format string) AccessMethodBase

func (*AccessMethodBase) Description

func (b *AccessMethodBase) Description() string

func (*AccessMethodBase) Format

func (b *AccessMethodBase) Format() string

func (*AccessMethodBase) Name

func (b *AccessMethodBase) Name() string

func (*AccessMethodBase) Version

func (b *AccessMethodBase) Version() string

type AccessMethodDescriptor

type AccessMethodDescriptor = descriptor.AccessMethodDescriptor

type AccessSpec

type AccessSpec = runtime.TypedObject

type AccessSpecInfo

type AccessSpecInfo = internal.AccessSpecInfo

type AccessSpecProvider

type AccessSpecProvider func() AccessSpec

type Action

type Action interface {
	Name() string
	Description() string
	DefaultSelectors() []string
	ConsumerType() string

	Execute(p Plugin, spec ActionSpec, creds credentials.DirectCredentials) (result ActionResult, err error)
}

type ActionResult

type ActionResult = action.ActionResult

type ActionSpec

type ActionSpec = action.ActionSpec

type ActionSpecInfo

type ActionSpecInfo = internal.ActionSpecInfo

type CLIOption

type CLIOption = descriptor.CLIOption

type Config

type Config map[string]interface{}

Config is a generic structured config stored in a string map.

func (Config) GetValue

func (c Config) GetValue(name string) (interface{}, bool)

type ContentVersionIdentityProvider

type ContentVersionIdentityProvider interface {
	GetInexpensiveContentVersionIdentity(p Plugin, spec AccessSpec, creds credentials.Credentials) (string, error)
}

ContentVersionIdentityProvider is an optional interface an AccessMethod may additionally implement to provide an inexpensive content version identity which might be derived from the access specification with cheap operations on the storage backend.

type Descriptor

type Descriptor = descriptor.Descriptor

type DownloadResultProvider

type DownloadResultProvider func() (string, error)

type Downloader

type Downloader interface {
	Name() string
	Description() string
	ConfigSchema() []byte

	Writer(p Plugin, arttype, mediatype string, filepath string, config []byte) (io.WriteCloser, DownloadResultProvider, error)
}

type DownloaderDescriptor

type DownloaderDescriptor = descriptor.DownloaderDescriptor

type DownloaderKey

type DownloaderKey = descriptor.DownloaderKey

type Options

type Options struct {
	Config json.RawMessage
}

func (*Options) AddFlags

func (o *Options) AddFlags(fs *pflag.FlagSet)

type Plugin

type Plugin interface {
	Name() string
	Version() string
	Descriptor() descriptor.Descriptor

	SetDescriptorTweaker(func(descriptor descriptor.Descriptor) descriptor.Descriptor)

	SetShort(s string)
	SetLong(s string)
	SetConfigParser(config func(raw json.RawMessage) (interface{}, error))

	RegisterDownloader(arttype, mediatype string, u Downloader) error
	GetDownloader(name string) Downloader
	GetDownloaderFor(arttype, mediatype string) Downloader

	RegisterUploader(arttype, mediatype string, u Uploader) error
	GetUploader(name string) Uploader
	GetUploaderFor(arttype, mediatype string) Uploader
	DecodeUploadTargetSpecification(data []byte) (UploadTargetSpec, error)

	RegisterAccessMethod(m AccessMethod) error
	DecodeAccessSpecification(data []byte) (AccessSpec, error)
	GetAccessMethod(name string, version string) AccessMethod

	RegisterAction(a Action) error
	DecodeAction(data []byte) (ActionSpec, error)
	GetAction(name string) Action

	GetOptions() *Options
	GetConfig() (interface{}, error)
}

func NewPlugin

func NewPlugin(name string, version string) Plugin

type UploadFormats

type UploadFormats runtime.KnownTypes[runtime.TypedObject, runtime.TypedObjectDecoder[runtime.TypedObject]]

type UploadTargetSpec

type UploadTargetSpec = runtime.TypedObject

type UploadTargetSpecInfo

type UploadTargetSpecInfo = internal.UploadTargetSpecInfo

type Uploader

type Uploader interface {
	Decoders() UploadFormats

	Name() string
	Description() string

	ValidateSpecification(p Plugin, spec UploadTargetSpec) (info *UploadTargetSpecInfo, err error)
	Writer(p Plugin, arttype, mediatype string, hint string, spec UploadTargetSpec, creds credentials.Credentials) (io.WriteCloser, AccessSpecProvider, error)
}

type UploaderBase

type UploaderBase = nameDescription

func MustNewUploaderBase

func MustNewUploaderBase(name, desc string) UploaderBase

type UploaderDescriptor

type UploaderDescriptor = descriptor.UploaderDescriptor

type UploaderKey

type UploaderKey = descriptor.UploaderKey