podman cp: do not overwrite non-dirs with dirs and vice versa

Add a new `--overwrite` flag to `podman cp` to allow for overwriting in
case existing users depend on the behavior; they will have a workaround.
By default, the flag is turned off to be compatible with Docker and to
have a more sane behavior.

Fixes: #14420
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>

2 files changed, 18 insertions, 0 deletions

diff --git a/pkg/bindings/containers/types.go b/pkg/bindings/containers/types.go
index 81d491bb7..f640ba756 100644
--- a/pkg/bindings/containers/types.go
+++ b/pkg/bindings/containers/types.go
@@ -287,4 +287,7 @@ type CopyOptions struct {
 	Chown *bool `schema:"copyUIDGID"`
 	// Map to translate path names.
 	Rename map[string]string
+	// NoOverwriteDirNonDir when true prevents an existing directory or file from being overwritten
+	// by the other type.
+	NoOverwriteDirNonDir *bool
 }
diff --git a/pkg/bindings/containers/types_copy_options.go b/pkg/bindings/containers/types_copy_options.go
index 8fcfe71a6..e43d79752 100644
--- a/pkg/bindings/containers/types_copy_options.go
+++ b/pkg/bindings/containers/types_copy_options.go
@@ -46,3 +46,18 @@ func (o *CopyOptions) GetRename() map[string]string {
 	}
 	return o.Rename
 }
+
+// WithNoOverwriteDirNonDir set field NoOverwriteDirNonDir to given value
+func (o *CopyOptions) WithNoOverwriteDirNonDir(value bool) *CopyOptions {
+	o.NoOverwriteDirNonDir = &value
+	return o
+}
+
+// GetNoOverwriteDirNonDir returns value of field NoOverwriteDirNonDir
+func (o *CopyOptions) GetNoOverwriteDirNonDir() bool {
+	if o.NoOverwriteDirNonDir == nil {
+		var z bool
+		return z
+	}
+	return *o.NoOverwriteDirNonDir
+}