forked from lix-project/lix
Maximilian Bosch
3b5429aec1
This is needed to push the adoption of structured attrs[1] forward. It's now checked if a `__json` exists in the environment-map of the derivation to be openend in a `nix-shell`. Derivations with structured attributes enabled also make use of a file named `.attrs.json` containing every environment variable represented as JSON which is useful for e.g. `exportReferencesGraph`[2]. To provide an environment similar to the build sandbox, `nix-shell` now adds a `.attrs.json` to `cwd` (which is mostly equal to the one in the build sandbox) and removes it using an exit hook when closing the shell. To avoid leaking internals of the build-process to the `nix-shell`, the entire logic to generate JSON and shell code for structured attrs was moved into the `ParsedDerivation` class. [1] https://nixos.mayflower.consulting/blog/2020/01/20/structured-attrs/ [2] https://nixos.org/manual/nix/unstable/expressions/advanced-attributes.html#advanced-attributes
17 lines
436 B
Bash
17 lines
436 B
Bash
source common.sh
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clearStore
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rm -f $TEST_ROOT/result
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nix-build structured-attrs.nix -A all -o $TEST_ROOT/result
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[[ $(cat $TEST_ROOT/result/foo) = bar ]]
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[[ $(cat $TEST_ROOT/result-dev/foo) = foo ]]
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export NIX_BUILD_SHELL=$SHELL
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[[ ! -e '.attrs.json' ]]
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env NIX_PATH=nixpkgs=shell.nix nix-shell structured-attrs-shell.nix \
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--run 'test -e .attrs.json; test "3" = "$(jq ".my.list|length" < .attrs.json)"'
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[[ ! -e '.attrs.json' ]]
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