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authorEelco Dolstra <e.dolstra@tudelft.nl>2007-09-17T16·08+0000
committerEelco Dolstra <e.dolstra@tudelft.nl>2007-09-17T16·08+0000
commit055608227f5a003825a905b0eb2aea39cba5ca16 (patch)
treefd3f4a9e9e6dd0df64e208b74f84ac7d79a67808 /doc/manual/nix-hash.xml
parent3339f854473863c8780e537626f457be0b2b33e2 (diff)
* nix-env: allow ~/.nix-defexpr to be a directory. If it is, then the
  Nix expressions in that directory are combined into an attribute set
  {file1 = import file1; file2 = import file2; ...}, i.e. each Nix
  expression is an attribute with the file name as the attribute
  name.  Also recurses into directories.

* nix-env: removed the "--import" (-I) option which set the
  ~/.nix-defexpr symlink.

* nix-channel: don't use "nix-env --import", instead symlink
  ~/.nix-defexpr/channels.  So finally nix-channel --update doesn't
  override any default Nix expressions but combines with them.

  This means that you can have (say) a local Nixpkgs SVN tree and use
  it as a default for nix-env:

  $ ln -s .../path-to-nixpkgs-tree ~/.nix-defexpr/nixpkgs_svn

  and be subscribed to channels (including Nixpkgs) at the same time.
  (If there is any ambiguity, the -A flag can be used to
  disambiguate, e.g. "nix-env -i -A nixpkgs_svn.pan".)

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