utils

Documentation

Index

• func DeduceOrigin(url *charm.URL, channel corecharm.Channel, platform corecharm.Platform) (commoncharm.Origin, error)
• func DeducePlatform(cons constraints.Value, series string, modelCons constraints.Value) (corecharm.Platform, error)
• func GetFlags(flagSet *gnuflag.FlagSet, flagNames []string) []string
• func GetMetaResources(charmURL *charm.URL, client CharmClient) (map[string]charmresource.Meta, error)
• func GetUpgradeResources(resourceLister ResourceLister, applicationID string, ...) (map[string]charmresource.Meta, error)
• func ParsePlacement(spec string) (*instance.Placement, error)
• func ReadValue(ctx *cmd.Context, filesystem modelcmd.Filesystem, filename string) (string, error)
• type CharmClient
• type ResourceLister

Functions

func DeduceOrigin

func DeduceOrigin(url *charm.URL, channel corecharm.Channel, platform corecharm.Platform) (commoncharm.Origin, error)

DeduceOrigin attempts to deduce the origin from a channel and a platform. Depending on what the charm URL schema is, will then construct the correct origin for that application.

func DeducePlatform

func DeducePlatform(cons constraints.Value, series string, modelCons constraints.Value) (corecharm.Platform, error)

DeducePlatform attempts to create a Platform (architecture, os and series) from a set of constraints or a free style series.

func GetFlags

func GetFlags(flagSet *gnuflag.FlagSet, flagNames []string) []string

GetFlags returns the flags with the given names. Only flags that are set and whose name is included in flagNames are included.

func GetMetaResources

func GetMetaResources(charmURL *charm.URL, client CharmClient) (map[string]charmresource.Meta, error)

GetMetaResources retrieves metadata resources for the given charm.URL.

func GetUpgradeResources

func GetUpgradeResources(
	resourceLister ResourceLister,
	applicationID string,
	cliResources map[string]string,
	meta map[string]charmresource.Meta,
) (map[string]charmresource.Meta, error)

GetUpgradeResources

func ParsePlacement

func ParsePlacement(spec string) (*instance.Placement, error)

ParsePlacement validates provided placement of a unit and returns instance.Placement.

func ReadValue

func ReadValue(ctx *cmd.Context, filesystem modelcmd.Filesystem, filename string) (string, error)

ReadValue reads the value of an option out of the named file. An empty content is valid, like in parsing the options. The upper size is 5M.

Types

type CharmClient

type CharmClient interface {
	CharmInfo(string) (*charms.CharmInfo, error)
}

CharmClient defines a subset of the charms facade, as required by the upgrade-charm command and to GetMetaResources.

type ResourceLister

type ResourceLister interface {
	ListResources([]string) ([]resource.ApplicationResources, error)
}

ResourceLister defines a subset of the resources facade, as required by the upgrade-charm command and to deploy bundles.