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Make the NAR parser much stricter wrt field order

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We really want to enforce a canonical representation since NAR
hashing/signing/deduplication depends on that.
This commit is contained in:
Eelco Dolstra 2024-09-12 15:57:46 +02:00
parent 27ec0def74
commit 7aa3e7e3a5
4 changed files with 85 additions and 100 deletions
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tests/functional/executable-after-contents.nar Normal file
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tests/functional/name-after-node.nar Normal file
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8
tests/functional/nars.sh
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@ -112,3 +112,11 @@ expectStderr 1 nix-store --restore "$TEST_ROOT/out" < slash.nar | grepQuiet "NAR
# Likewise for an empty filename.
rm -rf "$TEST_ROOT/out"
expectStderr 1 nix-store --restore "$TEST_ROOT/out" < empty.nar | grepQuiet "NAR contains invalid file name ''"
# Test that the 'executable' field cannot come before the 'contents' field.
rm -rf "$TEST_ROOT/out"
expectStderr 1 nix-store --restore "$TEST_ROOT/out" < executable-after-contents.nar | grepQuiet "expected tag ')', got 'executable'"
# Test that the 'name' field cannot come before the 'node' field in a directory entry.
rm -rf "$TEST_ROOT/out"
expectStderr 1 nix-store --restore "$TEST_ROOT/out" < name-after-node.nar | grepQuiet "expected tag 'name'"