1 files changed, 50 insertions, 0 deletions
diff --git a/cmd/podman/parse/common.go b/cmd/podman/parse/common.go
new file mode 100644
index 000000000..a5e9b4fc2
--- /dev/null
+++ b/cmd/podman/parse/common.go
@@ -0,0 +1,50 @@
+package parse
+
+import (
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+// CheckAllLatestAndCIDFile checks that --all and --latest are used correctly.
+// If cidfile is set, also check for the --cidfile flag.
+func CheckAllLatestAndCIDFile(c *cobra.Command, args []string, ignoreArgLen bool, cidfile bool) error {
+	argLen := len(args)
+	if c.Flags().Lookup("all") == nil || c.Flags().Lookup("latest") == nil {
+		if !cidfile {
+			return errors.New("unable to lookup values for 'latest' or 'all'")
+		} else if c.Flags().Lookup("cidfile") == nil {
+			return errors.New("unable to lookup values for 'latest', 'all' or 'cidfile'")
+		}
+	}
+
+	specifiedAll, _ := c.Flags().GetBool("all")
+	specifiedLatest, _ := c.Flags().GetBool("latest")
+	specifiedCIDFile := false
+	if cid, _ := c.Flags().GetStringArray("cidfile"); len(cid) > 0 {
+		specifiedCIDFile = true
+	}
+
+	if specifiedCIDFile && (specifiedAll || specifiedLatest) {
+		return errors.Errorf("--all, --latest and --cidfile cannot be used together")
+	} else if specifiedAll && specifiedLatest {
+		return errors.Errorf("--all and --latest cannot be used together")
+	}
+
+	if ignoreArgLen {
+		return nil
+	}
+	if (argLen > 0) && (specifiedAll || specifiedLatest) {
+		return errors.Errorf("no arguments are needed with --all or --latest")
+	} else if cidfile && (argLen > 0) && (specifiedAll || specifiedLatest || specifiedCIDFile) {
+		return errors.Errorf("no arguments are needed with --all, --latest or --cidfile")
+	}
+
+	if specifiedCIDFile {
+		return nil
+	}
+
+	if argLen < 1 && !specifiedAll && !specifiedLatest && !specifiedCIDFile {
+		return errors.Errorf("you must provide at least one name or id")
+	}
+	return nil
+}