rclone/notes.txt
Nick Craig-Wood 25a1b96537 Make download work properly skipping not changed files
Reorganise FsObject and factor more stuff into methods

Note that os.Chtimes() isn't setting the same precision (us) as we are
reading from os.Lstat() (ns) so the modification times don't roundtrip
properly yet.
2012-12-01 10:53:48 +00:00

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make 100% compatible with swift.py?
Make Env vars compatible with st?
Get and put the metadata in the libray (x-object-meta-mtime) when getting and putting a file?
This also puts meta-mtime
https://github.com/gholt/swiftly
As an integer, but it does parse it as a float
subargs.append('x-object-meta-mtime:%d' % getmtime(options.input_))
Need an iterate all objects routine... Could use a channel
- could just be a flag to Objects()
FIXME progress meter would be nice! Do this by wrapping the Reader with a progress bar
Do bandwidth limit by wrapping the Reader too
Maybe using https://jra-go.googlecode.com/hg/linkio/ which will work for multiple
uploads or downloads.
* code.google.com/p/mxk/go1/flowcontrol - only does one flow at once
Or maybe put into swift library.
Could have an integrity check mode where we check the MD5sums of the local vs the remote
Some stats would be nice!
Windows paths? Do we need to translate / and \?
Make swift timeouts be settable with command line parameters
Add bandwidth limit?
Make a wrapper in connection which
* measures bandwidth and reports it
* limits bandwidth using Reader and Writer
* for a pool of all individual connectinos
* does timeouts by setting a limit, seeing whether io has happened
and resetting it if it has
Check the locking in swift module!
501 not implemented for paths with a ? in them! Probably need to do some escaping...
hello? sausage: Failed to read info: HTTP Error: 501: 501 Not Implemented
Need to make directory objects otherwise can't upload an empty directory
* Or could upload empty directories only?
Make a fs.Errorf and count errors and log them at a different level
Seem to be able to read stats to ns precision (using struct stat
defined in asm-generic/stat.h)
https://www.kernel.org/doc/man-pages/online/pages/man2/stat.2.html
but only write them to us precision.
This is confirmed by looking at the source for Chtimes
func Chtimes(name string, atime time.Time, mtime time.Time) error {
var utimes [2]syscall.Timeval
atime_ns := atime.Unix()*1e9 + int64(atime.Nanosecond())
mtime_ns := mtime.Unix()*1e9 + int64(mtime.Nanosecond())
utimes[0] = syscall.NsecToTimeval(atime_ns)
utimes[1] = syscall.NsecToTimeval(mtime_ns)
if e := syscall.Utimes(name, utimes[0:]); e != nil {
return &PathError{"chtimes", name, e}
}
return nil
}
And
func NsecToTimeval(nsec int64) (tv Timeval) {
nsec += 999 // round up to microsecond
tv.Sec = nsec / 1e9
tv.Usec = nsec % 1e9 / 1e3
return
}
Seems likely Go should be using
utimensat() and futimens()
Instead of utimes() - the syscall is defined already
SYS_UTIMENSAT
Also for all the *bsd so likely they could be fixed too
Can also fix Futime which isn't using the syscall under linux