Merge branch 'master' of ssh://git-annex.branchable.com
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The files `unused`, `badunused` and `tmpunused` in `.git/annex/` do not have the correct permissions when the git repository is set to `--shared=group`. Such files are `600`, while they should be `660`, as other files in `.git/annex`.
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For this reason, when those files are created, they are accessibile only to one user (the owner), triggering errors when other users in the group attempt things like `git annex unused` or `git annex dropunused`. At least this occurs with git-annex 6.20171018+gitgbb20b1ed3-1~ndall+1 .
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To reproduce the problem:
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git init --shared=group
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git annex init
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echo test > test
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git annex add test
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git commit -m test
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git rm test
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git commit -m removed
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git annex unused
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you get:
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unused . (checking for unused data...) (checking master...)
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Some annexed data is no longer used by any files:
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NUMBER KEY
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1 SHA256E-s5--f2ca1bb6c7e907d06dafe4687e579fce76b37e4e93b7605022da52e6ccc26fd2
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(To see where data was previously used, try: git log --stat -S'KEY')
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To remove unwanted data: git-annex dropunused NUMBER
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ok
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Conversely, from another user of the group you get:
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> git annex unused
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unused . (checking for unused data...) (checking master...)
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Some annexed data is no longer used by any files:
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NUMBER KEY
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1 SHA256E-s5--f2ca1bb6c7e907d06dafe4687e579fce76b37e4e93b7605022da52e6ccc26fd2
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(To see where data was previously used, try: git log --stat -S'KEY')
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To remove unwanted data: git-annex dropunused NUMBER
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git-annex: .git/annex/unused: openFile: permission denied (Permission denied)
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failed
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git-annex: unused: 1 failed
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Moreover:
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> git annex dropunused 1
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git-annex: .git/annex/misctmp/mergedrefs.0: createDirectory: permission denied (Permission denied)
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This is somewhat expected, because the permissions of `unused`, `badunused` and `tmpunused` are `600`:
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> ll .git/annex/
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total 40
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drwxrwsr-x 5 ele testgroup 4096 dic 19 14:50 ./
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drwxrwsr-x 9 ele testgroup 4096 dic 19 14:50 ../
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-rw------- 1 ele testgroup 0 dic 19 14:50 badunused
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-rw-rw-r-- 1 ele testgroup 345 dic 19 14:49 index
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-rw-rw-r-- 1 ele testgroup 41 dic 19 14:49 index.lck
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drwxrwsr-x 2 ele testgroup 4096 dic 19 14:49 journal/
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-rw-rw---- 1 ele testgroup 0 dic 19 14:49 journal.lck
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-rw-rw-r-- 1 ele testgroup 62 dic 19 14:49 mergedrefs
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drwxrwsr-x 2 ele testgroup 4096 dic 19 14:49 misctmp/
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drwxrwsr-x 3 ele testgroup 4096 dic 19 14:49 objects/
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-rw-rw---- 1 ele testgroup 0 dic 19 14:49 precommit.lck
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-rw-rw-r-- 1 ele testgroup 0 dic 19 14:49 sentinal
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-rw-rw-r-- 1 ele testgroup 21 dic 19 14:49 sentinal.cache
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-rw------- 1 ele testgroup 0 dic 19 14:50 tmpunused
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-rw------- 1 ele testgroup 101 dic 19 14:50 unused
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If this is the intended behavior, could you please explain me how to use `git annex unused` and `dropunused` in a shared repository?
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@ -0,0 +1,9 @@
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[[!comment format=mdwn
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username="emanuele"
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nickname="emanuele.olivetti"
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avatar="http://cdn.libravatar.org/avatar/f51cc5c6c3a0eb28faa6491c3cbcfcce"
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subject="comment 1"
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date="2017-12-19T14:19:14Z"
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content="""
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Notice that, if I manually change the permsissions of `unused`, `badunused` and `tmpunused` to `660`, then other another user of the group can do `git annex unused` and `git annex dropunused 1` without errors. Unfortunately, after `git annex unused`, the ownership of `unused`, `badunused` and `tmpunused` changes from the initial user to the new user, and permissions are reset to `600`, which re-creates the initial problem.
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"""]]
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