nix-super/tests/functional/logging.sh

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source common.sh
clearStore
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path=$(nix-build dependencies.nix --no-out-link)
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# Test nix-store -l.
[ "$(nix-store -l $path)" = FOO ]
# Test compressed logs.
clearStore
rm -rf $NIX_LOG_DIR
(! nix-store -l $path)
nix-build dependencies.nix --no-out-link --compress-build-log
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[ "$(nix-store -l $path)" = FOO ]
# test whether empty logs work fine with `nix log`.
Fix `logging.sh` test on macOS On macOS in the `nix develop` shell, `make tests/functional/logging.sh.test` errors: ++(logging.sh:18) mktemp +(logging.sh:18) builder=/var/folders/z5/fclwwdms3r1gq4k4p3pkvvc00000gn/T/tmp.StuabKUhMh +(logging.sh:19) echo -e '#!/bin/sh\nmkdir $out' +++(logging.sh:22) mktemp -d ++(logging.sh:22) nix-build -E 'with import ./config.nix; mkDerivation { name = "fnord"; builder = /var/folders/z5/fclwwdms3r1gq4k4p3pkvvc00000gn/T/tmp.StuabKUhMh; }' --out-link /var/folders/z5/fclwwdms3r1gq4k4p3pkvvc00000gn/T/tmp.oaKcy0NXqC/result error: … while calling the 'derivationStrict' builtin at <nix/derivation-internal.nix>:9:12: 8| 9| strict = derivationStrict drvAttrs; | ^ 10| … while evaluating derivation 'fnord' whose name attribute is located at «string»:1:42 … while evaluating attribute 'args' of derivation 'fnord' at /Users/wiggles/nix/tests/functional/config.nix:23:7: 22| builder = shell; 23| args = ["-e" args.builder or (builtins.toFile "builder-${args.name}.sh" '' | ^ 24| if [ -e "$NIX_ATTRS_SH_FILE" ]; then source $NIX_ATTRS_SH_FILE; fi; error: path '/var' is a symlink +(logging.sh:22) outp= ++(logging.sh:22) onError ++(/Users/wiggles/nix/tests/functional/common/vars-and-functions.sh:237) set +x logging.sh: test failed at: main in logging.sh:22 This is because `mktemp` returns a path like `/var/folders/z5/fclwwdms3r1gq4k4p3pkvvc00000gn/T/tmp.qDY24l6bIM`, where `/var` is a symlink to `/private/var`. Then, we attempt to use that path as a `builder`, which errors because symlinks are impure or whatever. Anyways, we can fix this by using `realpath "$(mktemp)"` instead of `mktemp` directly. NB: This error doesn't seem to happen when I run the tests through `nix flake check`. I'm not sure if Nix does something to `TMP` in that case.
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builder="$(realpath "$(mktemp)")"
echo -e "#!/bin/sh\nmkdir \$out" > "$builder"
outp="$(nix-build -E \
'with import ./config.nix; mkDerivation { name = "fnord"; builder = '"$builder"'; }' \
--out-link "$(mktemp -d)/result")"
test -d "$outp"
nix log "$outp"