Re: silent semantic changes with reiser4

Hubert Chan
2004-08-26T17:14:29Z

>>>>> "Jan" == Jan Harkes <jaharkes@cs.cmu.edu> writes:

Jan> On Thu, Aug 26, 2004 at 10:53:48AM +0300, Markus Törnqvist wrote:

[...]

>> I for one would truly welcome the coming of thumbnails and
>> descriptions in picture files, because I have a real-life project
>> going on where that would be extremely handy to have in the actual
>> file.

Jan> Ehhh, that already exists and doesn't require meta-data streams,

Jan> http://www.exif.org/

but then you need an extra library to access the exif data. You can't
just do something like "display foo.jpg/exif/thumbnail". Or even
better, "echo 'this is a comment' > foo.jpg/comment" to change the jpeg
comment without an external program.

And I don't think exif tags work with all image formats.

>> On Thu, Aug 26, 2004 at 12:32:00AM -0500, Matt Mackall wrote:
>> >Find some silly person with an iBook and open a shell on OS X. Use
>> >cp to copy a file with a resource fork. Oh look, the Finder has no
>> >idea what the new file is, even though it looks exactly identical in
>> >the shell. Isn't that _wonderful_? Now try cat < a > b on a file
>> >with a fork. How is that ever going to work?

Under file-as-dir, it would not look the same under the shell if cp
didn't copy everything -- the directory contents would be different.
To copy the metadata as well, you would do something like "cp -r".
Similarly with "cat < a > b".

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Hubert Chan <hubert@uhoreg.ca> - http://www.uhoreg.ca/
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