Q: Changes via Aperture Show up in iCloud Photos?
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Jun 25, 2015 6:59 AMby LarryHN,I understand that files are shared between the two.
Not really - no files are "shared" - both libraries use hard links to reference the same original photo - Photos saves disk space by sharing images with your iPhoto or Aperture libraries - Apple Support
It is documented that further edits to a photo made via Aperture will not show up in Photos.
That is correct
However, does anything at all done in Aperture show up in Photos, perhaps some metadata edits?
No - there is no connection between the two libraries - each is its own and is totally separate from the other - nothing done to one has any effect on the other one
LN
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Jun 25, 2015 7:00 AMby léonie,HelpfulHowever, does anything at all done in Aperture show up in Photos, perhaps some metadata edits?
You will have to export the photos and import them again in Photos.
However, Photos has a Share option "Add to Aperture", so it is easy to get new photos from Photos to Aperture for editing. You could then add the edited Photos in Aperture to "My Photo Stream" to get them back to Photos.
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Jun 25, 2015 7:23 AMby R C-R,LarryHN wrote:
Not really - no files are "shared" - both libraries use hard links to reference the same original photo - Photos saves disk space by sharing images with your iPhoto or Aperture libraries - Apple Support
Just to avoid any possible confusion, hard links do in fact create share files -- that's why Apple titled the support article using the word "sharing."
However, the only thing shared is original "master" files that are used by both libraries -- edits, embedded metadata changes, etc. are not shared.
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Jun 25, 2015 7:37 AMby LarryHN,TO avoid any possible confusion you need to complete the sentence -
Photos saves disk space by sharing images with your iPhoto or Aperture libraries
It does not share files - it shared images - the contents of the files - one f the biggest issues with this whole thine is people who confuse files and the contents of files - Photos and iPhotos do not manage files, they managed the contents of files (photos) and that is a giant and very significant differents
Likewise Hard Links do not share files, they share the contents of files
no action is taken on the files - links are crated so the content is available to multiple programs
Photos saves disk space by creating links to the original and preview versions of your images.
And it is not just the masters that are linked - it is the Masters and reviews
LN
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Jun 25, 2015 8:41 AMby R C-R,Likewise Hard Links do not share files, they share the contents of files
Not exactly. A hard link literally is a link to a file system object -- technically, in OS X & other UNIX-like OSs they are references to an inode in the file system. Inodes store everything the file system knows about the object, so for example that is where access privileges, file type, & directory metadata is stored. That 'external' metadata, along with a file's 'internal' content (including any metadata embedded in it), are all shared when multiple hard links reference the same file.
Every file in the file system has at least one hard link associated with it -- that is how the file system knows how to find it, what kind of file it is, what is allowed to access or modify its contents, & so on. When a user deletes a file, all that really happens is a hard link to it is removed from the file system. If there are still other hard links to it, the file system does not free up the file space it uses, which is why deleting a file shared by Photos & iPhoto libraries in just one of those libraries does not free up any storage space or affect the file itself.
