helper

package
v1.39.0 Latest Latest
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Published: Jan 29, 2019 License: Apache-2.0 Imports: 10 Imported by: 22

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func CopyDirectory

func CopyDirectory(source string, destination string) error

CopyDirectory copies source to destination recursively.

func CopyFile

func CopyFile(source string, destination string) error

CopyFile copies source to destination. Before writing, it creates all required parent directories for the destination.

func CopySymlink(source string, destination string) error

CopySymlink copies source to destination. Before writing, it creates all required parent directories for the destination.

func ExtractTarGz

func ExtractTarGz(source string, destination string, stripComponents int) error

ExtractTarGz extracts source GZIP'd TAR file to a destination directory. An arbitrary number of top-level directory components can be stripped from each path.

func ExtractZip

func ExtractZip(source string, destination string, stripComponents int) error

ExtractZip extracts source ZIP file to a destination directory. An arbitrary number of top-level directory components can be stripped from each path.

func FileExists

func FileExists(file string) (bool, error)

FileExists returns whether a file exists taking into account various error cases.

func WriteFile

func WriteFile(filename string, perm os.FileMode, format string, args ...interface{}) error

WriteFile writes a file with the given content. Before writing, it creates all required parent directories for the file.

func WriteFileFromReader

func WriteFileFromReader(filename string, perm os.FileMode, source io.Reader) error

WriteFileFromReader writes a file with the given content from a io.Reader. Before writing, it creates all required parent directories for the file.

func WriteSymlink(oldName string, newName string) error

WriteSymlink creates newName as a symbolic link to oldName. Before writing, it creates all required parent directories for the newName.

Types

type Credentials added in v1.38.0

type Credentials map[string]interface{}

Credentials is the collection of credentials available exposed by a service.

func FindServiceCredentials added in v1.38.0

func FindServiceCredentials(filter string, credentials ...string) (Credentials, bool, error)

FindServiceCredentials returns the credentials payload for given service. The selected service is one who's BindingName, InstanceName, Label, or Tags contain the filter and has the required credentials. Returns the credentials and true if exactly one service is matched, otherwise false.

NOTE: This function should ONLY be used in helper applications executed at launch time. It is BY DESIGN that credential values are not available when the buildpack is executing.

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