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05961b5b39f16'>9744cc7b4636fafb772c94adb8f05961b5b39f16 (patch) treea06d57b21b197ebe1d3f9a85d81d6ecc795146a1 /gnu/packages/patches/gcc-4.9-libsanitizer-fix.patch parent872898f768ae6d3b41eb93c5e183624bd1d157ff (diff)downloadguix-9744cc7b4636fafb772c94adb8f05961b5b39f16.tar.gz
guix-9744cc7b4636fafb772c94adb8f05961b5b39f16.zip
pull: Protect against downgrade attacks.
* guix/scripts/pull.scm (%default-options): Add 'validate-pull'. (%options, show-help): Add '--allow-downgrades'. (warn-about-backward-updates): New procedure. (guix-pull): Pass #:current-channels and #:validate-pull to 'latest-channel-instances'. * guix/channels.scm (ensure-forward-channel-update): Add hint for when (channel-commit channel) is true. * doc/guix.texi (Invoking guix pull): Document '--allow-downgrades'.
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