func processLocalEvent_Upper(globals *AsinkGlobals, event *asink.Event, latestLocal *asink.Event, absolutePath string) error {
if latestLocal != nil {
event.Predecessor = latestLocal.Hash
if event.Timestamp < latestLocal.Timestamp {
fmt.Printf("trying to send event older than latestLocal:\n")
fmt.Printf("OLD %+v\n", latestLocal)
fmt.Printf("NEW %+v\n", event)
}
}
if event.IsUpdate() {
//copy to tmp
//TODO upload in chunks and check modification times to make sure it hasn't been changed instead of copying the whole thing off
tmpfilename, err := util.CopyToTmp(absolutePath, globals.tmpDir)
if err != nil {
//bail out if the file we are trying to upload already got deleted
if util.ErrorFileNotFound(err) {
event.LocalStatus |= asink.DISCARDED
return nil
}
return err
}
//try to collect the file's permissions
fileinfo, err := os.Stat(absolutePath)
if err != nil {
//bail out if the file we are trying to upload already got deleted
if util.ErrorFileNotFound(err) {
event.LocalStatus |= asink.DISCARDED
return nil
}
return ProcessingError{PERMANENT, err}
} else {
event.Permissions = fileinfo.Mode()
}
//get the file's hash
hash, err := HashFile(tmpfilename)
if err != nil {
return ProcessingError{TEMPORARY, err}
}
event.Hash = hash
//If the hash is the same, don't try to upload the event again
if latestLocal != nil && event.Hash == latestLocal.Hash {
os.Remove(tmpfilename)
//If neither the file contents nor permissions changed, squash this event completely
if event.Permissions == latestLocal.Permissions {
event.LocalStatus |= asink.DISCARDED
return nil
}
} else {
//rename to local cache w/ filename=hash
cachedFilename := path.Join(globals.cacheDir, event.Hash)
err = os.Rename(tmpfilename, cachedFilename)
if err != nil {
err = os.Remove(tmpfilename)
if err != nil {
return ProcessingError{PERMANENT, err}
}
return ProcessingError{PERMANENT, err}
}
}
} else {
//if we're trying to delete a file that we thought was already deleted, there's no need to delete it again
if latestLocal != nil && latestLocal.IsDelete() {
event.LocalStatus |= asink.DISCARDED
return nil
}
}
return nil
}
