Hello Peter,
I think that 10MB is quit a big chunk of data. Have you tried smaller
chunks as well? My experience is that smaller chunks give a smoother
impression, while they don't slow down copying much.
I added a wait command to your code (see below).
To get and set the modification dates on Mac OS X, use AppleScript.
To get the modification date (mind line wraps):
tell application "Finder" to set x to the modification date of file
"System:Users:John:desktop:Untitled.html"
To set the modification date:
tell application "Finder" to set the modification date of file
"System:Users:John:desktop:Untitled.html copy" to date "31-10-2007"
I believe that the date format needs to be the same as the system
date if you want to write a date in abbreviated form.
AppleScript used by Revolution to copy modification dates:
on copyDate theSourceFile,theDestinationFile
if char 1 of theSourceFile is "~" then delete char 1 of theSourceFIle
if char 1 of theDestinationFile is "~" then delete char 1 of
theDestinationFile
put "tell application 'Finder'" & cr & ¬
"set myDate to the modification date of POSIX file '/users/" &
$USER & theSourceFile & "'" & cr & ¬
"set the modification date of POSIX file '/users/" & $USER &
theDestinationFile & "' to myDate" & cr & ¬
"end tell" into myScript
replace "'" with quote in myScript
do myScript as AppleScript
return the result
end copyDate
usage of the copyDate command:
copyDate "~/desktop/Untitled.html","~/desktop/Untitled.html copy"
put the result
Note that the file paths need to be absolute file paths.
Unfortunately, I expect that using AppleScript to set modification
dates may bring you back to the original problem, which was caused by
AppleScript locking up Revolution. A better alternative might be to
use a shell command, but I haven't looked into that yet. There is a
command line utility (GetFileInfo) included in Apple's developer CD,
which may be able to do the job.
Best,
Mark
--
Economy-x-Talk
Consultancy and Software Engineering
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Op 6-feb-2007, om 23:24 heeft Peter Reid het volgende geschreven:
I've now managed to use buffered file copying for the problem I
mentioned previously. Here is my file copying handler:
on copyAfile sourceFile, destFolder, fCreatorType
constant cBffrSize = 10485760 -- copy in 10Mbyte chunks
set itemDelimiter to "/"
put destFolder & last item of sourceFile into destFile
-- set the Mac OS filetype & create destination file:
set the fileType to fCreatorType
open file destFile for binary write
-- open source file:
open file sourceFile for binary read
-- copy the file data:
put empty into dataBffr
put false into gotEOF
repeat until gotEOF
read from file sourceFile for cBffrSize chars
put the result is "eof" into gotEOF
put it into dataBffr
if dataBffr is not empty then
write dataBffr to file destFile
end if
wait 0 millisecs with messages -- increase number for more control
over GUI
end repeat
close file destFile
close file sourceFile
-- copy Mac OS resource fork info:
put getResources(sourceFile) into resourceList
set itemDelimiter to comma
repeat for each line i in resourceList
put item 1 of i into resType
put item 2 of i into resID
put copyresource(sourceFile,destFile,resType,resID) into junk
wait 0 millisecs with messages -- increase number for more control
over GUI
end repeat
put empty into junk
end copyAfile
The remaining problem I have is that the copied file has the
current time & date NOT the same time & date as the original file.
If I had used the revCopyFile, then the time & date would have been
preserved.
Can anyone suggest how I can change the (creation or modified) time
& date on a file so the copies are the same as the originals?
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