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autoenable security for compute special remote

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Added annex.security.autoenable-compute-programs and only allow
autoenabling special remotes that use compute programs on that list.

The reason this is needed is a user might have some compute programs
that are less safe to use than others. They might want to use an unsafe
one only with one repository, where they are the only committer or other
committers are trusted. They might be ok with others being used by any
repository, and if so they can add them to the list.

Another reason would be a user who has installed a compute program by
accident. Eg, it might be included with git-annex at some point, or
pulled in by some dependency. That user doesn't necessarily want that
compute program to be used in an autoenabled special remote.
This commit is contained in:
Joey Hess 2025-03-03 15:47:09 -04:00
parent 89bfeada87
commit f32d2aecce
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GPG key ID: DB12DB0FF05F8F38
6 changed files with 36 additions and 7 deletions
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7
doc/design/compute_special_remote_interface.mdwn
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@ -26,13 +26,12 @@ For security, the program should avoid exposing user input to the shell
unprotected, or otherwise executing it.
The program is run in a temporary directory, which will be cleaned up after
it exits. Note that it may be run in a subdirectory of its temporary
it exits. Note that it may be run in a subdirectory of a temporary
directory. This is done when `git-annex addcomputed` was run in a subdirectory
of the git repository.
The content of any annexed file in the repository can be an input
to the computation. The program requests an input by writing a line to
stdout:
The content of any file in the repository can be an input to the
computation. The program requests an input by writing a line to stdout:
INPUT file.raw