utils

Documentation

Index

• func DigestReference(ref string) bool
• func DockerInitPath(localCopy string) string
• func DoesEnvExist(name string) bool
• func GetCallerName(depth int) string
• func ImageReference(repo, ref string) string
• func ReadDockerIgnore(path string) ([]string, error)
• func ReplaceOrAppendEnvValues(defaults, overrides []string) []string
• func SelfPath() string
• func TestDirectory(templateDir string) (dir string, err error)
• func ValidateContextDirectory(srcPath string, excludes []string) error
• type WriteFlusher
  • func NewWriteFlusher(w io.Writer) *WriteFlusher
  • func (wf *WriteFlusher) Flush()
  • func (wf *WriteFlusher) Write(b []byte) (n int, err error)

Functions

func DigestReference

func DigestReference(ref string) bool

DigestReference returns true if ref is a digest reference; i.e. if it is of the form <algorithm>:<digest>.

func DockerInitPath

func DockerInitPath(localCopy string) string

Figure out the path of our dockerinit (which may be SelfPath())

func DoesEnvExist

func DoesEnvExist(name string) bool

func GetCallerName

func GetCallerName(depth int) string

GetCallerName introspects the call stack and returns the name of the function `depth` levels down in the stack.

func ImageReference

func ImageReference(repo, ref string) string

ImageReference combines `repo` and `ref` and returns a string representing the combination. If `ref` is a digest (meaning it's of the form <algorithm>:<digest>, the returned string is <repo>@<ref>. Otherwise, ref is assumed to be a tag, and the returned string is <repo>:<tag>.

func ReadDockerIgnore

func ReadDockerIgnore(path string) ([]string, error)

Reads a .dockerignore file and returns the list of file patterns to ignore. Note this will trim whitespace from each line as well as use GO's "clean" func to get the shortest/cleanest path for each.

func ReplaceOrAppendEnvValues

func ReplaceOrAppendEnvValues(defaults, overrides []string) []string

ReplaceOrAppendValues returns the defaults with the overrides either replaced by env key or appended to the list

func SelfPath

func SelfPath() string

Figure out the absolute path of our own binary (if it's still around).

func TestDirectory

func TestDirectory(templateDir string) (dir string, err error)

TestDirectory creates a new temporary directory and returns its path. The contents of directory at path `templateDir` is copied into the new directory.

func ValidateContextDirectory

func ValidateContextDirectory(srcPath string, excludes []string) error

ValidateContextDirectory checks if all the contents of the directory can be read and returns an error if some files can't be read symlinks which point to non-existing files don't trigger an error

Types

type WriteFlusher

type WriteFlusher struct {
	sync.Mutex
	// contains filtered or unexported fields
}

FIXME: move to httputils? ioutils?

func NewWriteFlusher

func NewWriteFlusher(w io.Writer) *WriteFlusher

func (*WriteFlusher) Flush

func (wf *WriteFlusher) Flush()

Flush the stream immediately.

func (*WriteFlusher) Write

func (wf *WriteFlusher) Write(b []byte) (n int, err error)