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<nix/fetchurl.nix>: Support downloading and unpacking NARs

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This removes the need to have multiple downloads in the stdenv
bootstrap process (like a separate busybox binary for Linux, or
curl/mkdir/sh/bzip2 for Darwin). Now all those files can be combined
into a single NAR.
This commit is contained in:
Eelco Dolstra 2015-10-30 11:27:47 +01:00
parent 5c28943e8f
commit dae5dc7ade
4 changed files with 46 additions and 16 deletions
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24
tests/fetchurl.sh
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@ -2,8 +2,26 @@ source common.sh
clearStore
hash=$(nix-hash --flat --type sha256 ./fetchurl.nix)
hash=$(nix-hash --flat --type sha256 ./fetchurl.sh)
outPath=$(nix-build ./fetchurl.nix --argstr filename $(pwd)/fetchurl.nix --argstr sha256 $hash --no-out-link)
outPath=$(nix-build '<nix/fetchurl.nix>' --argstr url file://$(pwd)/fetchurl.sh --argstr sha256 $hash --no-out-link)
cmp $outPath fetchurl.nix
cmp $outPath fetchurl.sh
rm -rf $TEST_ROOT/archive
mkdir -p $TEST_ROOT/archive
cp ./fetchurl.sh $TEST_ROOT/archive
chmod +x $TEST_ROOT/archive/fetchurl.sh
ln -s foo $TEST_ROOT/archive/symlink
nar=$TEST_ROOT/archive.nar
nix-store --dump $TEST_ROOT/archive > $nar
hash=$(nix-hash --flat --type sha256 $nar)
outPath=$(nix-build '<nix/fetchurl.nix>' --argstr url file://$nar --argstr sha256 $hash \
--arg unpack true --argstr name xyzzy --no-out-link)
echo $outPath | grep -q 'xyzzy'
test -x $outPath/fetchurl.sh
test -L $outPath/symlink