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-rw-r--r--libpod/define/diff.go26
1 files changed, 26 insertions, 0 deletions
diff --git a/libpod/define/diff.go b/libpod/define/diff.go
new file mode 100644
index 000000000..ee492eb3a
--- /dev/null
+++ b/libpod/define/diff.go
@@ -0,0 +1,26 @@
+package define
+
+// extra type to use as enum
+type DiffType uint8
+
+const (
+ // only diff containers
+ DiffContainer DiffType = 1 << iota
+ // only diff images
+ DiffImage
+ // diff both containers and images
+ DiffAll DiffType = 0b11111111
+)
+
+func (d DiffType) String() string {
+ switch d {
+ case DiffAll:
+ return "all"
+ case DiffContainer:
+ return "container"
+ case DiffImage:
+ return "image"
+ default:
+ return "unknown"
+ }
+}