mirror of
https://github.com/privatevoid-net/nix-super.git
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64519cfd65
SHA-256 outputs of fixed-output derivations. I.e. they now produce
the same store path:
$ nix-store --add x
/nix/store/j2fq9qxvvxgqymvpszhs773ncci45xsj-x
$ nix-store --add-fixed --recursive sha256 x
/nix/store/j2fq9qxvvxgqymvpszhs773ncci45xsj-x
the latter being the same as the path that a derivation
derivation {
name = "x";
outputHashAlgo = "sha256";
outputHashMode = "recursive";
outputHash = "...";
...
};
produces.
This does change the output path for such fixed-output derivations.
Fortunately they are quite rare. The most common use is fetchsvn
calls with SHA-256 hashes. (There are a handful of those is
Nixpkgs, mostly unstable development packages.)
* Documented the computation of store paths (in store-api.cc).
63 lines
1.6 KiB
Bash
63 lines
1.6 KiB
Bash
source common.sh
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clearStore
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export IMPURE_VAR1=foo
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export IMPURE_VAR2=bar
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echo 'testing good...'
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drvs=$($nixinstantiate fixed.nix -A good)
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echo $drvs
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$nixstore -r $drvs
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echo 'testing good2...'
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drvs=$($nixinstantiate fixed.nix -A good2)
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echo $drvs
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$nixstore -r $drvs
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echo 'testing bad...'
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drvs=$($nixinstantiate fixed.nix -A bad)
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echo $drvs
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if $nixstore -r $drvs; then false; fi
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echo 'testing reallyBad...'
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if $nixinstantiate fixed.nix -A reallyBad; then false; fi
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# While we're at it, check attribute selection a bit more.
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echo 'testing attribute selection...'
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test $($nixinstantiate fixed.nix -A good.1 | wc -l) = 1
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# Test parallel builds of derivations that produce the same output.
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# Only one should run at the same time.
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echo 'testing parallelSame...'
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clearStore
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drvs=$($nixinstantiate fixed.nix -A parallelSame)
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echo $drvs
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$nixstore -r $drvs -j2
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# Fixed-output derivations with a recursive SHA-256 hash should
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# produce the same path as "nix-store --add".
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echo 'testing sameAsAdd...'
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drv=$($nixinstantiate fixed.nix -A sameAsAdd)
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echo $drv
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out=$($nixstore -r $drv)
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echo $out
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# This is what fixed.builder2 produces...
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rm -rf $TEST_ROOT/fixed
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mkdir $TEST_ROOT/fixed
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mkdir $TEST_ROOT/fixed/bla
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echo "Hello World!" > $TEST_ROOT/fixed/foo
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ln -s foo $TEST_ROOT/fixed/bar
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out2=$($nixstore --add $TEST_ROOT/fixed)
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echo $out2
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test "$out" = "$out2" || exit 1
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out3=$($nixstore --add-fixed --recursive sha256 $TEST_ROOT/fixed)
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echo $out3
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test "$out" = "$out3" || exit 1
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out4=$($nixstore --print-fixed-path --recursive sha256 "1ixr6yd3297ciyp9im522dfxpqbkhcw0pylkb2aab915278fqaik" fixed)
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echo $out4
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test "$out" = "$out4" || exit 1
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