isolatedclient

Documentation

Overview

Package isolatedclient implements the API to communicate with the Isolated server and to process '.isolated' files.

Index

• Constants
• type Client
  • func New(anonClient, authClient *http.Client, host, namespace string, rFn retry.Factory, ...) *Client
  • func (i *Client) Contains(c context.Context, items []*isolateservice.HandlersEndpointsV1Digest) (out []*PushState, err error)
  • func (i *Client) Fetch(c context.Context, item *isolateservice.HandlersEndpointsV1Digest, ...) error
  • func (i *Client) Push(c context.Context, state *PushState, source Source) (err error)
  • func (i *Client) ServerCapabilities(c context.Context) (*isolateservice.HandlersEndpointsV1ServerDetails, error)
• type CloudStorage
• type Flags
  • func (c *Flags) Init(f *flag.FlagSet)
  • func (c *Flags) Parse() error
• type PushState
• type Source
  • func NewBytesSource(d []byte) Source

Constants

const DefaultNamespace = "default-gzip"

DefaultNamespace is the namespace that should be used with the New function.

Types

type Client

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

Client is a client to an isolated server.

func New

func New(anonClient, authClient *http.Client, host, namespace string, rFn retry.Factory, gcs CloudStorage) *Client

New returns a new IsolateServer client.

'authClient' must implement authentication sufficient to talk to Isolate server (OAuth tokens with 'email' scope).

'anonClient' must be a functional http.Client.

If either client is nil, it will use http.DefaultClient (which will not work on Classic AppEngine!).

If you're unsure which namespace to use, use the DefaultNamespace constant.

If gcs is nil, the defaultGCSHandler is used for fetching from and pushing to GCS.

func (*Client) Contains

func (i *Client) Contains(c context.Context, items []*isolateservice.HandlersEndpointsV1Digest) (out []*PushState, err error)

Contains looks up cache presence on the server of multiple items.

The returned list is in the same order as 'items', with entries nil for items that were present.

func (*Client) Fetch

func (i *Client) Fetch(c context.Context, item *isolateservice.HandlersEndpointsV1Digest, dest io.WriteSeeker) error

Fetch downloads an item from the server.

func (*Client) Push

func (i *Client) Push(c context.Context, state *PushState, source Source) (err error)

Push pushed a missing item, as reported by Contains(), to the server.

func (*Client) ServerCapabilities

func (i *Client) ServerCapabilities(c context.Context) (*isolateservice.HandlersEndpointsV1ServerDetails, error)

ServerCapabilities returns the server details.

type CloudStorage

type CloudStorage interface {
	// Fetch is a handler for retrieving specified content from GCS and storing
	// the response in the provided destination buffer.
	Fetch(context.Context, *Client, isolateservice.HandlersEndpointsV1RetrievedContent, io.WriteSeeker) error
	// Push is a handler for pushing content from provided buffer to GCS.
	Push(context.Context, *Client, isolateservice.HandlersEndpointsV1PreuploadStatus, Source) error
}

CloudStorage is the interface for clients to fetch from and push to GCS storage.

type Flags

type Flags struct {
	ServerURL string
	Namespace string
}

Flags contains values parsed from command line arguments.

func (*Flags) Init

func (c *Flags) Init(f *flag.FlagSet)

Init registers flags in a given flag set.

func (*Flags) Parse

func (c *Flags) Parse() error

Parse applies changes specified by command line flags.

type PushState

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

PushState is per-item state passed from IsolateServer.Contains() to IsolateServer.Push().

Its content is implementation specific.

type Source

type Source func() (io.ReadCloser, error)

Source is a generator method to return source data. A generated Source must be Closed before the generator is called again.

func NewBytesSource

func NewBytesSource(d []byte) Source

NewBytesSource returns a Source implementation that reads from the supplied byte slice.