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363f37d084
Thus, -I / $NIX_PATH entries are now downloaded only when they are
needed for evaluation. An error to download an entry is a non-fatal
warning (just like non-existant paths).
This does change the semantics of builtins.nixPath, which now returns
the original, rather than resulting path. E.g., before we had
[ { path = "/nix/store/hgm3yxf1lrrwa3z14zpqaj5p9vs0qklk-nixexprs.tar.xz"; prefix = "nixpkgs"; } ... ]
but now
[ { path = "https://nixos.org/channels/nixos-16.03/nixexprs.tar.xz"; prefix = "nixpkgs"; } ... ]
Fixes #792.
29 lines
912 B
Bash
29 lines
912 B
Bash
source common.sh
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clearStore
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export HOME=$TEST_ROOT/home
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rm -rf $TEST_ROOT/home
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tarroot=$TEST_ROOT/tarball
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rm -rf $tarroot
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mkdir -p $tarroot
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cp dependencies.nix $tarroot/default.nix
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cp config.nix dependencies.builder*.sh $tarroot/
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tarball=$TEST_ROOT/tarball.tar.xz
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(cd $TEST_ROOT && tar c tarball) | xz > $tarball
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nix-env -f file://$tarball -qa --out-path | grep -q dependencies
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nix-build -o $TMPDIR/result file://$tarball
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nix-build -o $TMPDIR/result '<foo>' -I foo=file://$tarball
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nix-build -o $TMPDIR/result -E "import (fetchTarball file://$tarball)"
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nix-instantiate --eval -E '1 + 2' -I fnord=file://no-such-tarball.tar.xz
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nix-instantiate --eval -E 'with <fnord/xyzzy>; 1 + 2' -I fnord=file://no-such-tarball.tar.xz
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(! nix-instantiate --eval -E '<fnord/xyzzy> 1' -I fnord=file://no-such-tarball.tar.xz)
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nix-instantiate --eval -E '<fnord/config.nix>' -I fnord=file://no-such-tarball.tar.xz -I fnord=.
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