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daemon: Read unsigned nar size and download size from substituter.

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Fixes <https://issues.guix.gnu.org/51983>.
Reported by Tobias Geerinckx-Rice <me@tobias.gr>.

* nix/libstore/local-store.cc (LocalStore::querySubstitutablePathInfos):
Expect 'unsigned long long' for 'downloadSize' and 'narSize'.
* tests/store.scm ("substitute query and large size"): New test.
This commit is contained in:
Ludovic Courtès 2021-11-24 22:58:12 +01:00
parent a4cbd31c5c
commit 1eb40a6dc4
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GPG key ID: 090B11993D9AEBB5
2 changed files with 36 additions and 2 deletions
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4
nix/libstore/local-store.cc
View file

@ -907,8 +907,8 @@ void LocalStore::querySubstitutablePathInfos(PathSet & paths, SubstitutablePathI
assertStorePath(p);
info.references.insert(p);
}
info.downloadSize = getIntLineFromSubstituter<long long>(run);
info.narSize = getIntLineFromSubstituter<long long>(run);
info.downloadSize = getIntLineFromSubstituter<unsigned long long>(run);
info.narSize = getIntLineFromSubstituter<unsigned long long>(run);
}
}

34
tests/store.scm
View file

@ -942,6 +942,40 @@ (define failure
(build-derivations s (list d))
#f))))))
(test-equal "substitute query and large size"
(+ 100 (expt 2 63)) ;<https://issues.guix.gnu.org/51983>
(with-store s
(let* ((size (+ 100 (expt 2 63))) ;does not fit in signed 'long long'
(item (string-append (%store-prefix)
"/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-bad-size")))
;; Create fake substituter data, to be read by 'guix substitute'.
(call-with-output-file (string-append (%substitute-directory)
"/" (store-path-hash-part item)
".narinfo")
(lambda (port)
(format port "StorePath: ~a
URL: http://example.org
Compression: none
NarSize: ~a
NarHash: sha256:0fj9vhblff2997pi7qjj7lhmy7wzhnjwmkm2hmq6gr4fzmg10s0w
References:
System: x86_64-linux~%"
item size)))
;; Remove entry from the local cache.
(false-if-exception
(delete-file-recursively (string-append (getenv "XDG_CACHE_HOME")
"/guix/substitute")))
;; Make sure 'guix substitute' correctly communicates the above
;; data.
(set-build-options s #:use-substitutes? #t
#:substitute-urls (%test-substitute-urls))
(match (pk 'spi (substitutable-path-info s (list item)))
(((? substitutable? s))
(and (equal? (substitutable-path s) item)
(substitutable-nar-size s)))))))
(test-assert "export/import several paths"
(let* ((texts (unfold (cut >= <> 10)
(lambda _ (random-text))