Add darwin support for remote-client

Add the ability to cross-compile podman remote for OSX.

Also, add image exists and tag to remote-client.

Signed-off-by: baude <bbaude@redhat.com>

2 files changed, 14 insertions, 3 deletions

diff --git a/pkg/rootless/rootless_unsupported.go b/pkg/rootless/rootless_unsupported.go
index d72402c9f..1823c023e 100644
--- a/pkg/rootless/rootless_unsupported.go
+++ b/pkg/rootless/rootless_unsupported.go
@@ -14,7 +14,7 @@ func IsRootless() bool {
 // BecomeRootInUserNS is a stub function that always returns false and an
 // error on unsupported OS's
 func BecomeRootInUserNS() (bool, int, error) {
-	return false, -1, errors.New("this function is not supported on this os")
+	return false, -1, errors.New("this function is not supported on this os1")
 }
 
 // GetRootlessUID returns the UID of the user in the parent userNS
@@ -34,11 +34,18 @@ func SkipStorageSetup() bool {
 // JoinNS re-exec podman in a new userNS and join the user namespace of the specified
 // PID.
 func JoinNS(pid uint) (bool, int, error) {
-	return false, -1, errors.New("this function is not supported on this os")
+	return false, -1, errors.New("this function is not supported on this os2")
 }
 
 // JoinNSPath re-exec podman in a new userNS and join the owner user namespace of the
 // specified path.
 func JoinNSPath(path string) (bool, int, error) {
-	return false, -1, errors.New("this function is not supported on this os")
+	return false, -1, errors.New("this function is not supported on this os3")
+}
+
+// JoinDirectUserAndMountNS re-exec podman in a new userNS and join the user and mount
+// namespace of the specified PID without looking up its parent.  Useful to join directly
+// the conmon process.
+func JoinDirectUserAndMountNS(pid uint) (bool, int, error) {
+	return false, -1, errors.New("this function is not supported on this os4")
 }
diff --git a/pkg/spec/config_unsupported.go b/pkg/spec/config_unsupported.go
index c2a58696d..160414878 100644
--- a/pkg/spec/config_unsupported.go
+++ b/pkg/spec/config_unsupported.go
@@ -26,3 +26,7 @@ func (c *CreateConfig) createBlockIO() (*spec.LinuxBlockIO, error) {
 func makeThrottleArray(throttleInput []string, rateType int) ([]spec.LinuxThrottleDevice, error) {
 	return nil, errors.New("function not implemented")
 }
+
+func devicesFromPath(g *generate.Generator, devicePath string) error {
+	return errors.New("function not implemented")
+}