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https://www.google.com/accounts/o8/id?id=AItOawl9sYlePmv1xK-VvjBdN-5doOa_Xw-jH4U 2013-08-06 14:22:03 +00:00 • committed by admin
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doc/todo/__96__git_annex_import_--lazy__96___--_Delete_everything_that__39__s_in_the_source_directory_and_also_in_the_target_annex/comment_1_0cc16eb17151309113cec6d1cccf203d._comment Normal file
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[[!comment format=mdwn
username="https://www.google.com/accounts/o8/id?id=AItOawl9sYlePmv1xK-VvjBdN-5doOa_Xw-jH4U"
nickname="Richard"
subject="comment 1"
date="2013-08-06T14:22:03Z"
content="""
To expand a bit on the use case:
I have several migration directories which I simply moved to new systems or disks with the help of `cp -ax` or `rsync`.
As I don't _need_ the data per se and merely want to hold on to it in case I ever happen to need it again and as disk space is laughably cheap, I have a lot of duplicates.
While I can at least detect bit flips with the help of checksum lists, cleaning those duplicates of duplicated duplicates is quite some effort.
To make things worse, photos, music, videos, letter and whatnot are thrown into the same container directories.
All in all, getting data out of those data dumps and into a clean structure is quite an effort.
`git annex import --lazy` would help with this effort as I could start with the first directory, sort stuff by hand, and annex it.
As soon as data lives in any of my annexes, I could simply run `git annex import --lazy` to get rid of all duplicates while retaining the unannexed files.
Iterating through this process a few times, I will be left with clean annexes on the one hand and stuff I can simply delete on the other hand.
I could script all this by hand on my own machine, but I am _certain_ that others would find easy, integrated, and unit tested support for whittling down data dumps over time useful.
"""]]