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* Add a Nix expression search path feature. Paths between angle

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brackets, e.g.

    import <nixpkgs/pkgs/lib>

  are resolved by looking them up relative to the elements listed in
  the search path.  This allows us to get rid of hacks like

    import "${builtins.getEnv "NIXPKGS_ALL"}/pkgs/lib"

  The search path can be specified through the ‘-I’ command-line flag
  and through the colon-separated ‘NIX_PATH’ environment variable,
  e.g.,

    $ nix-build -I /etc/nixos ...

  If a file is not found in the search path, an error message is
  lazily thrown.
This commit is contained in:
Eelco Dolstra 2011-08-06 16:05:24 +00:00
parent 54945a2950
commit 1ecc97b6bd
24 changed files with 98 additions and 9 deletions
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2
tests/lang.sh
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@ -40,7 +40,7 @@ for i in lang/eval-okay-*.nix; do
if test -e lang/$i.flags; then
flags=$(cat lang/$i.flags)
fi
if ! $nixinstantiate $flags --eval-only --strict lang/$i.nix > lang/$i.out; then
if ! NIX_PATH=lang/dir3:lang/dir4 $nixinstantiate $flags --eval-only --strict lang/$i.nix > lang/$i.out; then
echo "FAIL: $i should evaluate"
fail=1
elif ! diff lang/$i.out lang/$i.exp; then