lib/tests/sources.sh

   1 #!/usr/bin/env bash
   2
   3 # Tests lib/sources.nix
   4 # Run:
   5 # [nixpkgs]$ lib/tests/sources.sh
   6 # or:
   7 # [nixpkgs]$ nix-build lib/tests/release.nix
   8
   9 set -euo pipefail
  10 shopt -s inherit_errexit
  11
  12 # Use
  13 #     || die
  14 die() {
  15   echo >&2 "test case failed: " "$@"
  16   exit 1
  17 }
  18
  19 if test -n "${TEST_LIB:-}"; then
  20   NIX_PATH=nixpkgs="$(dirname "$TEST_LIB")"
  21 else
  22   NIX_PATH=nixpkgs="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.."; pwd)"
  23 fi
  24 export NIX_PATH
  25
  26 work="$(mktemp -d)"
  27 clean_up() {
  28   rm -rf "$work"
  29 }
  30 trap clean_up EXIT
  31 cd "$work"
  32
  33 # Crudely unquotes a JSON string by just taking everything between the first and the second quote.
  34 # We're only using this for resulting /nix/store paths, which can't contain " anyways,
  35 # nor can they contain any other characters that would need to be escaped specially in JSON
  36 # This way we don't need to add a dependency on e.g. jq
  37 crudeUnquoteJSON() {
  38     cut -d \" -f2
  39 }
  40
  41 touch {README.md,module.o,foo.bar}
  42
  43 dir="$(nix-instantiate --eval --strict --read-write-mode --json --expr '(with import <nixpkgs/lib>; "${
  44   cleanSource ./.
  45 }")' | crudeUnquoteJSON)"
  46 (cd "$dir"; find) | sort -f | diff -U10 - <(cat <<EOF
  47 .
  48 ./foo.bar
  49 ./README.md
  50 EOF
  51 ) || die "cleanSource 1"
  52
  53
  54 dir="$(nix-instantiate --eval --strict --read-write-mode --json --expr '(with import <nixpkgs/lib>; "${
  55   cleanSourceWith { src = '"$work"'; filter = path: type: ! hasSuffix ".bar" path; }
  56 }")' | crudeUnquoteJSON)"
  57 (cd "$dir"; find) | sort -f | diff -U10 - <(cat <<EOF
  58 .
  59 ./module.o
  60 ./README.md
  61 EOF
  62 ) || die "cleanSourceWith 1"
  63
  64 dir="$(nix-instantiate --eval --strict --read-write-mode --json --expr '(with import <nixpkgs/lib>; "${
  65   cleanSourceWith { src = cleanSource '"$work"'; filter = path: type: ! hasSuffix ".bar" path; }
  66 }")' | crudeUnquoteJSON)"
  67 (cd "$dir"; find) | sort -f | diff -U10 - <(cat <<EOF
  68 .
  69 ./README.md
  70 EOF
  71 ) || die "cleanSourceWith + cleanSource"
  72
  73 echo >&2 tests ok