#!/usr/bin/env bash source common.sh clearStoreIfPossible testStdinHeredoc=$(nix eval -f - <<EOF { bar = 3 + 1; foo = 2 + 2; } EOF ) [[ $testStdinHeredoc == '{ bar = 4; foo = 4; }' ]] nix eval --expr 'assert 1 + 2 == 3; true' [[ $(nix eval int -f "./eval.nix") == 123 ]] [[ $(nix eval str -f "./eval.nix") == '"foo"' ]] [[ $(nix eval str --raw -f "./eval.nix") == 'foo' ]] [[ "$(nix eval attr -f "./eval.nix")" == '{ foo = "bar"; }' ]] [[ $(nix eval attr --json -f "./eval.nix") == '{"foo":"bar"}' ]] [[ $(nix eval int -f - < "./eval.nix") == 123 ]] [[ "$(nix eval --expr '{"assert"=1;bar=2;}')" == '{ "assert" = 1; bar = 2; }' ]] # Check if toFile can be utilized during restricted eval [[ $(nix eval --restrict-eval --expr 'import (builtins.toFile "source" "42")') == 42 ]] nix-instantiate --eval -E 'assert 1 + 2 == 3; true' [[ $(nix-instantiate -A int --eval "./eval.nix") == 123 ]] [[ $(nix-instantiate -A str --eval "./eval.nix") == '"foo"' ]] [[ "$(nix-instantiate -A attr --eval "./eval.nix")" == '{ foo = "bar"; }' ]] [[ $(nix-instantiate -A attr --eval --json "./eval.nix") == '{"foo":"bar"}' ]] [[ $(nix-instantiate -A int --eval - < "./eval.nix") == 123 ]] [[ "$(nix-instantiate --eval -E '{"assert"=1;bar=2;}')" == '{ "assert" = 1; bar = 2; }' ]] # Check that symlink cycles don't cause a hang. ln -sfn cycle.nix $TEST_ROOT/cycle.nix (! nix eval --file $TEST_ROOT/cycle.nix) # Check that relative symlinks are resolved correctly. mkdir -p $TEST_ROOT/xyzzy $TEST_ROOT/foo ln -sfn ../xyzzy $TEST_ROOT/foo/bar printf 123 > $TEST_ROOT/xyzzy/default.nix [[ $(nix eval --impure --expr "import $TEST_ROOT/foo/bar") = 123 ]] # Test --arg-from-file. [[ "$(nix eval --raw --arg-from-file foo config.nix --expr '{ foo }: { inherit foo; }' foo)" = "$(cat config.nix)" ]] # Check that special(-ish) files are drained. if [[ -e /proc/version ]]; then [[ "$(nix eval --raw --arg-from-file foo /proc/version --expr '{ foo }: { inherit foo; }' foo)" = "$(cat /proc/version)" ]] fi # Test --arg-from-stdin. [[ "$(echo bla | nix eval --raw --arg-from-stdin foo --expr '{ foo }: { inherit foo; }' foo)" = bla ]] # Test that unknown settings are warned about out="$(expectStderr 0 nix eval --option foobar baz --expr '""' --raw)" [[ "$(echo "$out" | grep foobar | wc -l)" = 1 ]]