rpm-ostree

Author SHA1 Message Date

Author	SHA1	Message	Date
Colin Walters	ec4387afba	internals: New `unpack` verb This is part of taking over from librpm. The most important high level goal is fully unprivilged operation. Right now we're basically starting to do what http://libguestfs.org/supermin.1.html does, except in C, and faster. There's no reason that `compose tree` should require privileges. However right now, things like `%post` scripts will want to run in the target root - so we'd have to require `linux-user-chroot`. Regardless of unprivileged operation though, another major thing we can do is use our control over the unpacking process to do a lot more sophisticated caching. We can build up a precise mapping of (rpm ENVR, file path, selinux label) -> object and avoid rechecksumming each time. And even for files that aren't known, we can parallelize commit with unpacking, etc. (Ok assuming treecompose-post won't mutate anything).	2016-01-12 10:22:43 -05:00

Colin Walters

ec4387afba

internals: New unpack verb

This is part of taking over from librpm.  The most important high
level goal is fully unprivilged operation.

Right now we're basically starting to do what
http://libguestfs.org/supermin.1.html does, except in C, and
faster.

There's no reason that `compose tree` should require privileges.
However right now, things like `%post` scripts will want to run in the
target root - so we'd have to require `linux-user-chroot`.

Regardless of unprivileged operation though, another major thing we
can do is use our control over the unpacking process to do a lot more
sophisticated caching.  We can build up a precise mapping of (rpm
ENVR, file path, selinux label) -> object and avoid rechecksumming
each time.

And even for files that aren't known, we can parallelize commit with
unpacking, etc.  (Ok assuming treecompose-post won't mutate anything).

2016-01-12 10:22:43 -05:00

1 Commits