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192 commits

Author SHA1 Message Date
Eelco Dolstra
a3e6415ba8 * New primop builtins.filterSource, which can be used to filter files 
from a source directory.  All files for which a predicate function
  returns true are copied to the store.  Typical example is to leave
  out the .svn directory:

    stdenv.mkDerivation {
      ...
      src = builtins.filterSource
        (path: baseNameOf (toString path) != ".svn")
        ./source-dir;
      # as opposed to
      #   src = ./source-dir;
    }

  This is important because the .svn directory influences the hash in
  a rather unpredictable and variable way.
 2006-12-12 23:05:01 +00:00
Eelco Dolstra
1a7e88bbd9 * New built-in function `builtins.attrNames' that returns the 
names of the attributes in an attribute set.
 2006-12-12 16:14:31 +00:00
Eelco Dolstra
9c9cdb06d0 * Remove SwitchToOriginalUser, we're not going to need it anymore. 2006-12-02 14:34:14 +00:00
Eelco Dolstra
fcd9900d74 * Replace read-only calls to addTextToStore. 2006-12-01 21:00:39 +00:00
Eelco Dolstra
a824d58b56 * Merge addToStore and addToStoreFixed. 
* addToStore now adds unconditionally, it doesn't use readOnlyMode.
  Read-only operation is up to the caller (who can call
  computeStorePathForPath).
 2006-12-01 20:51:18 +00:00
Eelco Dolstra
6ecb840fd1 * Put building in the store API. 2006-11-30 18:02:04 +00:00
Eelco Dolstra
e2ef5e07fd * Refactoring. There is now an abstract interface class StoreAPI 
containing functions that operate on the Nix store.  One
  implementation is LocalStore, which operates on the Nix store
  directly.  The next step, to enable secure multi-user Nix, is to
  create a different implementation RemoteStore that talks to a
  privileged daemon process that uses LocalStore to perform the actual
  operations.
 2006-11-30 17:43:04 +00:00
Eelco Dolstra
7e85a2af5f * Fix importing of derivation outputs. 2006-11-03 16:17:39 +00:00
Eelco Dolstra
dd300fb48d * Some better error messages. 2006-10-23 16:45:19 +00:00
Eelco Dolstra
17f4883bfe * Better message. 2006-10-19 17:43:58 +00:00
Eelco Dolstra
9bd93f7606 * toFile: maintain the references. 2006-10-19 17:39:02 +00:00
Eelco Dolstra
daa8f85fcd * Backwards compatibility hack for user environments made by Nix <= 0.10. 2006-10-17 14:13:15 +00:00
Eelco Dolstra
24737f279e * Backwards compatibility with old user environment manifests. 2006-10-17 14:01:45 +00:00
Eelco Dolstra
4bd5cdb90b * Print out the offending path. 2006-10-17 14:01:28 +00:00
Eelco Dolstra
58ff6939f4 * An awful backwards compatibility hack. 2006-10-17 12:58:42 +00:00
Eelco Dolstra
3059df0f1e * baseNameOf: paths don't have to be absolute. 2006-10-17 12:34:13 +00:00
Eelco Dolstra
be1961c9f8 * toPath: should be the identity on paths. 2006-10-17 11:07:11 +00:00
Eelco Dolstra
cba913c521 * dirOf: return a path if the argument is a path. 2006-10-17 11:05:34 +00:00
Eelco Dolstra
cf705eaf78 * toString: don't copy paths. So toString can be used to pass 
non-store paths to a builder.
 2006-10-17 10:58:12 +00:00
Eelco Dolstra
7de5fe2fc2 * Do the path check on the normal form. 2006-10-17 10:57:25 +00:00
Eelco Dolstra
d7efd76394 * Big cleanup of the semantics of paths, strings, contexts, string 
concatenation and string coercion.  This was a big mess (see
  e.g. NIX-67).  Contexts are now folded into strings, so that they
  don't cause evaluation errors when they're not expected.  The
  semantics of paths has been clarified (see nixexpr-ast.def).
  toString() and coerceToString() have been merged.

  Semantic change: paths are now copied to the store when they're in a
  concatenation (and in most other situations - that's the
  formalisation of the meaning of a path).  So

    "foo " + ./bla

  evaluates to "foo /nix/store/hash...-bla", not "foo
  /path/to/current-dir/bla".  This prevents accidental impurities, and
  is more consistent with the treatment of derivation outputs, e.g.,
  `"foo " + bla' where `bla' is a derivation.  (Here `bla' would be
  replaced by the output path of `bla'.)
 2006-10-16 15:55:34 +00:00
Eelco Dolstra
7d4567f2cc * Removed URIs from the evaluator (NIX-66). They are now just another 
kind of notation for strings.
 2006-10-11 21:59:33 +00:00
Eelco Dolstra
0c4c5c2020 * Quick hack to fix NIX-67: evaluation result differing if the Nix 
expression resides in the store.
 2006-10-10 21:23:35 +00:00
Eelco Dolstra
bd0c40e1e9 * import': unwrap the context. Necessary to make import (x + y)' 
work, where x is a store path.
 2006-10-10 15:07:23 +00:00
Eelco Dolstra
5fd44654db * toXML: propagate the context to allow derivations to be used in the 
argument.
 2006-10-03 15:38:59 +00:00
Eelco Dolstra
d20c3011a0 * toFile: added an additional argument to specify the store path 
suffix, e.g., `builtins.toFile "builder.sh" "..."'.
* toFile: handle references to other files correctly.
 2006-10-03 14:55:54 +00:00
Eelco Dolstra
ac19b333b3 * Finally, a real "let" syntax: `let x = ...; ... z = ...; in ...'. 2006-10-02 15:52:44 +00:00
Eelco Dolstra
7581cfdee4 * Hack for Bison 2.3 compatability. 2006-10-02 14:43:15 +00:00
Eelco Dolstra
e347033f71 * The result of a concatenation with a derivation on the left-hand 
side should be a path, I guess.
* Handle paths that are in the store but not direct children of the
  store directory.
* Ugh, hack to prevent double context wrapping.
 2006-09-24 21:39:57 +00:00
Eelco Dolstra
0e705391db * Primop `toPath' to convert a string to a path. 
* Primop `pathExists' to check for path existence.
 2006-09-24 18:23:32 +00:00
Eelco Dolstra
e47e0c2dbe * Builtin function `getEnv' for getting environment variables. 2006-09-24 17:48:41 +00:00
Eelco Dolstra
df8873e14a * lessThan primitive for integer comparison. 2006-09-24 15:21:48 +00:00
Eelco Dolstra
2ab4bc44c7 * Builtin function `add' to add integers. 
* Put common test functions in tests/lang/lib.nix.
 2006-09-22 15:29:21 +00:00
Eelco Dolstra
d315210612 * Added a builtin function `isList' to test whether a value is a list. 
With this primitive, a list-flattening function can be implemented
  (NIX-55, example is in tests/lang/eval-okay-flatten.nix).
 2006-09-22 14:55:19 +00:00
Eelco Dolstra
c02a44183f * Builtin functions head' and tail' to return the head and tail of 
list.  Useful for lots of things, such as implementing a fold
  function (see NIX-30, example is in tests/lang/eval-okay-list.nix).
 2006-09-22 14:46:36 +00:00
Eelco Dolstra
8a1ab709a4 * New builtin functions builtins.{hasAttr, getAttr} to check for 
attribute existence and to return an attribute from an attribute
  set, respectively.  Example: `hasAttr "foo" {foo = 1;}'.  They
  differ from the `?' and `.' operators in that the attribute name is
  an arbitrary expression.  (NIX-61)
 2006-09-22 14:31:55 +00:00
Eelco Dolstra
4e91d8621f * Fix comment. 2006-09-21 18:52:05 +00:00
Eelco Dolstra
1bdc152931 * Shut up a warning. 2006-09-20 16:36:29 +00:00
Eelco Dolstra
0623359fbc * Print a better error message for wrong hashes (NIX-49). 2006-09-20 16:15:32 +00:00
Eelco Dolstra
01d169f817 * Support `++'. 
* More follow restrictions on layout.
 2006-09-11 13:05:15 +00:00
Eelco Dolstra
fc195519b5 * Sone missing #includes. 2006-09-05 08:54:48 +00:00
Eelco Dolstra
bafc1690fc * Move setuid stuff to libutil. 
* Install libexpr header files.
 2006-09-04 22:55:28 +00:00
Eelco Dolstra
e5a6c09b12 * Install header files in /nix/include/nix. 2006-09-04 22:41:36 +00:00
Eelco Dolstra
4be5443882 * Remove unnecessary inclusions of aterm2.h. 2006-09-04 22:08:40 +00:00
Eelco Dolstra
e3ce954582 * Compile the lexer as C++ code. Remove all the redundant C/C++ 
marshalling code.
 2006-09-04 21:36:15 +00:00
Eelco Dolstra
75068e7d75 * Use a proper namespace. 
* Optimise header file usage a bit.
* Compile the parser as C++.
 2006-09-04 21:06:23 +00:00
Eelco Dolstra
aab8812732 * Store the Nix libraries in ${libdir}/nix instead of ${libdir}. 2006-09-04 15:12:24 +00:00
Eelco Dolstra
7974aae81c * New primop: builtins.toFile, which writes a string into the store 
and returns its path.  This can be used to (for instance) write
  builders inside a Nix expression, e.g.,

  stdenv.mkDerivation {
    builder = "
      source $stdenv/setup
      ...
    ";
    ...
  }
 2006-09-01 12:07:31 +00:00
Eelco Dolstra
de90fdf908 * Allow "$" in strings as long as they are not followed by "{". (Too 
bad flex doesn't have lexical restrictions, the current solution
  isn't quite right...)
 2006-09-01 12:04:06 +00:00
Eelco Dolstra
f93f7b75be * Okay, that's a bit harder than expected. 2006-08-30 13:10:04 +00:00