Nir Soffer has posted comments on this change.
Change subject: [WIP] core: Expose API for qemuimg commit ......................................................................
Patch Set 4:
(5 comments)
https://gerrit.ovirt.org/#/c/64222/4/lib/vdsm/qemuimg.py File lib/vdsm/qemuimg.py:
Line 184: Line 185: return QemuImgOperation(cmd, cwd=cwdPath) Line 186: Line 187: Line 188: def commit(top, topFormat=None, base=None): We should require topFormat, more secure to never let qemu detect the format. Line 189: cmd = [_qemuimg.cmd, "commit", "-p"] Line 190: cwdir = None Line 191: Line 192: if base:
Line 185: return QemuImgOperation(cmd, cwd=cwdPath) Line 186: Line 187: Line 188: def commit(top, topFormat=None, base=None): Line 189: cmd = [_qemuimg.cmd, "commit", "-p"] Add -t none. Line 190: cwdir = None Line 191: Line 192: if base: Line 193: cmd.extend(("-b", base))
Line 186: Line 187: Line 188: def commit(top, topFormat=None, base=None): Line 189: cmd = [_qemuimg.cmd, "commit", "-p"] Line 190: cwdir = None workdir? Line 191: Line 192: if base: Line 193: cmd.extend(("-b", base)) Line 194: if not os.path.isabs(base):
Line 191: Line 192: if base: Line 193: cmd.extend(("-b", base)) Line 194: if not os.path.isabs(base): Line 195: cwdir = cwdPath = os.path.dirname(base) Lets always use workdir, to simplify the code. Line 196: else: Line 197: # If base volume is not provided, qemuimg commit will empty the top Line 198: # volume after the operation has succeeded. Providing '-d' option Line 199: # will cause qemuimg commit not to empty the top volume. Note that
Line 201: # '-d' is always implied. Line 202: cmd.append("-d") Line 203: Line 204: if topFormat: Line 205: cmd.extend(("-f", str(topFormat))) str not needed Line 206: Line 207: cmd.append(top) Line 208: Line 209: return QemuImgOperation(cmd, cwd=cwdir)