plugin

package
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Published: Dec 22, 2016 License: Apache-2.0 Imports: 5 Imported by: 0

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Constants

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const PluginFileName = "plugin.yaml"

PluginFileName is the name of a plugin file.

Variables

This section is empty.

Functions

This section is empty.

Types

type Metadata

type Metadata struct {
	// Name is the name of the plugin
	Name string `json:"name"`

	// Version is a SemVer 2 version of the plugin.
	Version string `json:"version"`

	// Usage is the single-line usage text shown in help
	Usage string `json:"usage"`

	// Description is a long description shown in places like `helm help`
	Description string `json:"description"`

	// Command is the command, as a single string.
	//
	// The command will be passed through environment expansion, so env vars can
	// be present in this command. Unless IgnoreFlags is set, this will
	// also merge the flags passed from Helm.
	//
	// Note that command is not executed in a shell. To do so, we suggest
	// pointing the command to a shell script.
	Command string `json:"command"`

	// IgnoreFlags ignores any flags passed in from Helm
	//
	// For example, if the plugin is invoked as `helm --debug myplugin`, if this
	// is false, `--debug` will be appended to `--command`. If this is true,
	// the `--debug` flag will be discarded.
	IgnoreFlags bool `json:"ignoreFlags"`

	// UseTunnel indicates that this command needs a tunnel.
	// Setting this will cause a number of side effects, such as the
	// automatic setting of HELM_HOST.
	UseTunnel bool `json:"useTunnel"`
}

Metadata describes a plugin.

This is the plugin equivalent of a chart.Metadata.

type Plugin

type Plugin struct {
	// Metadata is a parsed representation of a plugin.yaml
	Metadata *Metadata
	// Dir is the string path to the directory that holds the plugin.
	Dir string
}

Plugin represents a plugin.

func LoadAll

func LoadAll(basedir string) ([]*Plugin, error)

LoadAll loads all plugins found beneath the base directory.

This scans only one directory level.

func LoadDir

func LoadDir(dirname string) (*Plugin, error)

LoadDir loads a plugin from the given directory.

func (*Plugin) PrepareCommand

func (p *Plugin) PrepareCommand(extraArgs []string) (string, []string)

PrepareCommand takes a Plugin.Command and prepares it for execution.

It merges extraArgs into any arguments supplied in the plugin. It returns the name of the command and an args array.

The result is suitable to pass to exec.Command.

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