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authorLudovic Courtès <ludo@gnu.org>2020-12-10 11:21:14 +0100
committerLudovic Courtès <ludo@gnu.org>2020-12-15 17:32:09 +0100
commit2718c29c3fb9f9de2ec897248ad49ae11ca39b7a (patch)
tree6698852d62943afa23f01f8fbeec8033db9c7ef7 /guix/build
parented7d02f7c198970ce3fe94bcee47592963326446 (diff)
nar: Deduplicate files right as they are restored.
This avoids having to traverse and re-read the files that we have just restored, thereby reducing I/O. * guix/serialization.scm (dump-file): New procedure. (restore-file): Add #:dump-file parameter and honor it. * guix/store/deduplication.scm (tee, dump-file/deduplicate): New procedures. * guix/nar.scm (restore-one-item): Pass #:dump-file to 'restore-file'. (finalize-store-file): Pass #:deduplicate? #f to 'register-items'. * tests/nar.scm <top level>: Call 'setenv' to set "NIX_STORE".
Diffstat (limited to 'guix/build')
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