nixpkgs/lib/tests/sources.sh
Victor Engmark 989f034ff1 lib/tests: Set hardening pragmas
Makes any programming errors more likely to show up early.

Non-obvious changes because of this:

- Ignore the `evalConfig` result in `reportFailure`; we're not checking
  it at that point.
- Pre-increment `$fail` and `$pass` to make sure the arithmetic doesn't
  result in a zero, which would result in a non-zero exit code for the
  expression.
2021-11-26 10:55:14 +13:00

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#!/usr/bin/env bash
set -euo pipefail
shopt -s inherit_errexit
# Use
# || die
die() {
echo >&2 "test case failed: " "$@"
exit 1
}
if test -n "${TEST_LIB:-}"; then
NIX_PATH=nixpkgs="$(dirname "$TEST_LIB")"
else
NIX_PATH=nixpkgs="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.."; pwd)"
fi
export NIX_PATH
work="$(mktemp -d)"
clean_up() {
rm -rf "$work"
}
trap clean_up EXIT
cd "$work"
touch {README.md,module.o,foo.bar}
# nix-instantiate doesn't write out the source, only computing the hash, so
# this uses the experimental nix command instead.
dir="$(nix eval --impure --raw --expr '(with import <nixpkgs/lib>; "${
cleanSource ./.
}")')"
(cd "$dir"; find) | sort -f | diff -U10 - <(cat <<EOF
.
./foo.bar
./README.md
EOF
) || die "cleanSource 1"
dir="$(nix eval --impure --raw --expr '(with import <nixpkgs/lib>; "${
cleanSourceWith { src = '"$work"'; filter = path: type: ! hasSuffix ".bar" path; }
}")')"
(cd "$dir"; find) | sort -f | diff -U10 - <(cat <<EOF
.
./module.o
./README.md
EOF
) || die "cleanSourceWith 1"
dir="$(nix eval --impure --raw --expr '(with import <nixpkgs/lib>; "${
cleanSourceWith { src = cleanSource '"$work"'; filter = path: type: ! hasSuffix ".bar" path; }
}")')"
(cd "$dir"; find) | sort -f | diff -U10 - <(cat <<EOF
.
./README.md
EOF
) || die "cleanSourceWith + cleanSource"
echo >&2 tests ok