Add copy object method

Implement copy object method in swiftclient Connection, Service and CLI.

Although COPY functionality can be accomplished with 'X-Copy-From'
header in PUT request, using copy is more convenient especially when
using copy for updating object metadata non-destructively.

Closes-Bug: 1474939
Change-Id: I1338ac411f418f4adb3d06753d044a484a7f32a4

1 files changed, 30 insertions, 0 deletions

diff --git a/examples/copy.py b/examples/copy.py
new file mode 100644
index 0000000..e928db4
--- /dev/null
+++ b/examples/copy.py
@@ -0,0 +1,30 @@
+import logging
+
+from swiftclient.service import SwiftService, SwiftCopyObject, SwiftError
+
+logging.basicConfig(level=logging.ERROR)
+logging.getLogger("requests").setLevel(logging.CRITICAL)
+logging.getLogger("swiftclient").setLevel(logging.CRITICAL)
+logger = logging.getLogger(__name__)
+
+with SwiftService() as swift:
+    try:
+        obj = SwiftCopyObject("c", {"Destination": "/cont/d"})
+        for i in swift.copy(
+                "cont", ["a", "b", obj],
+                {"meta": ["foo:bar"], "Destination": "/cc"}):
+            if i["success"]:
+                if i["action"] == "copy_object":
+                    print(
+                        "object %s copied from /%s/%s" %
+                        (i["destination"], i["container"], i["object"])
+                    )
+                if i["action"] == "create_container":
+                    print(
+                        "container %s created" % i["container"]
+                    )
+            else:
+                if "error" in i and isinstance(i["error"], Exception):
+                    raise i["error"]
+    except SwiftError as e:
+        logger.error(e.value)