machinectl: add new "machinectl clean" command

This new command removes all, or all hidden container images that have been
downloaded.

1 files changed, 26 insertions, 0 deletions

diff --git a/src/shared/machine-image.h b/src/shared/machine-image.h
index 31b720d50c..7410168c4f 100644
--- a/src/shared/machine-image.h
+++ b/src/shared/machine-image.h
@@ -25,6 +25,8 @@
 #include "hashmap.h"
 #include "lockfile-util.h"
 #include "macro.h"
+#include "path-util.h"
+#include "string-util.h"
 #include "time-util.h"
 
 typedef enum ImageType {
@@ -75,3 +77,27 @@ int image_path_lock(const char *path, int operation, LockFile *global, LockFile
 int image_name_lock(const char *name, int operation, LockFile *ret);
 
 int image_set_limit(Image *i, uint64_t referenced_max);
+
+static inline bool IMAGE_IS_HIDDEN(const struct Image *i) {
+        assert(i);
+
+        return i->name && i->name[0] == '.';
+}
+
+static inline bool IMAGE_IS_VENDOR(const struct Image *i) {
+        assert(i);
+
+        return i->path && path_startswith(i->path, "/usr");
+}
+
+static inline bool IMAGE_IS_HOST(const struct Image *i) {
+        assert(i);
+
+        if (i->name && streq(i->name, ".host"))
+                return true;
+
+        if (i->path && path_equal(i->path, "/"))
+                return true;
+
+        return false;
+}