openssh

var (
	OpenSSHVersion = "unknown"
	SSHPassVersion = "unknown"
	PluginVersion  = "unknown"

	// These are extracted during runtime using Go 1.18's build info in the init step.
	GitCommit  = "unknown"
	DirtyBuild = false
)

var (
	// ErrMissingSCP is returned when the scp binary isn't found in the locations below.
	ErrMissingSCP = errors.New("can't find scp binary")

	// ErrMissingSSH is returned when the ssh binary isn't found in the locations below.
	ErrMissingSSH = errors.New("can't find ssh binary")

	// ErrMissingSSHPASS is returned when the sshpass binary isn't found in the locations below.
	ErrMissingSSHPASS = errors.New("can't find sshpass binary")

	// ErrAmbiguousAuth is returned when both password and passphrase specified.
	ErrAmbiguousAuth = errors.New("can't use both password and passphrase for authentication")
)

var (
	// BinSearchLocations are the common binary locations to look for scp and sshpass
	// we could probably pick up the $PATH env var and then walk that looking around
	// but it's a bit more work than just assuming some sane defaults since we'll have
	// full control over how we construct and create the Dockerfile to hold this plugin.
	BinSearchLocations = []string{".", "/usr/local/bin", "/usr/bin", "/bin"}

	// DefaultSSHFlags makes the default behavior to not check host keys or save
	// them to the known hosts. This is because it'll typically ask for a user interaction
	// and that will break the plugin flow. If a user specifies their own flags these should
	// get overwritten.
	DefaultSSHFlags = []string{"-o StrictHostKeyChecking=no", "-o UserKnownHostsFile=/dev/null"}

	// DefaultSCPFlags uses the Default SSH flags because scp uses SSH under the covers and
	// benefits from the same default host checking behavior.
	DefaultSCPFlags = DefaultSSHFlags

	// DefaultSSHPassFlags is just like the SCP flags in that these are to aid with debugging
	// but if a user specifies any flags these will be disregarded.
	DefaultSSHPassFlags = []string{}
)