Commit graph

665 commits

Author SHA1 Message Date
Shea Levy 4b7c9f834c tilde paths: get HOME at parse time 2015-02-19 08:49:10 -05:00
Shea Levy 4646e94610 ExprConcatStrings: canonicalize concatenated paths 2015-02-19 08:39:25 -05:00
Shea Levy e0953d53de Allow the leading component of a path to be a ~ 2015-02-19 08:05:16 -05:00
Eelco Dolstra 2be7f79fd4 Remove tab 2015-02-05 17:21:30 +01:00
Shea Levy 73bf32ce94 Merge remote-tracking branch 'shlevy/baseNameOf-no-copy'
baseNameOf: Don't copy paths to the store first
2015-01-29 03:29:09 -05:00
Eelco Dolstra c2a8b5c42d Fix assertion failure in nix-env
$ nix-env -f ~/Dev/nixops/ -iA foo
  nix-env: src/libexpr/eval.hh:57: void nix::Bindings::push_back(const nix::Attr&): Assertion `size_ < capacity' failed.
  Aborted
2015-01-15 12:15:22 +01:00
Eelco Dolstra 2a3b1df423 Fix builtins.readDir on XFS
The DT_UNKNOWN fallback code was getting the type of the wrong path,
causing readDir to report "directory" as the type of every file.

Reported by deepfire on IRC.
2015-01-09 14:56:25 +01:00
Eelco Dolstra 153a943de7 Show position info for failing <...> lookups 2015-01-07 13:43:55 +01:00
Eelco Dolstra 6fec43ccb3 Remove quotes around filenames in position info 2015-01-07 12:08:10 +01:00
Eelco Dolstra 4e0607369e Pedantry 2014-12-14 01:51:14 +01:00
Eelco Dolstra 8aedaf111e Remove canary stuff 2014-12-12 10:59:50 +01:00
Shea Levy 50c3352811 builtins.readFile: realise context associated with the path 2014-12-10 12:26:53 +01:00
Shea Levy 608110804c Make all ExternalValueBase functions const 2014-12-02 10:27:10 -05:00
Shea Levy 320659b0cd Allow external code using libnixexpr to add types
Code that links to libnixexpr (e.g. plugins loaded with importNative, or
nix-exec) may want to provide custom value types and operations on
values of those types. For example, nix-exec is currently using sets
where a custom IO value type would be more appropriate. This commit
provides a generic hook for such types in the form of tExternal and the
ExternalBase virtual class, which contains all functions necessary for
libnixexpr's type-polymorphic functions (e.g. `showType`) to be
implemented.
2014-12-02 10:27:04 -05:00
Eelco Dolstra 976df480c9 Add a primop for regular expression pattern matching
The function ‘builtins.match’ takes a POSIX extended regular
expression and an arbitrary string. It returns ‘null’ if the string
does not match the regular expression. Otherwise, it returns a list
containing substring matches corresponding to parenthesis groups in
the regex. The regex must match the entire string (i.e. there is an
implied "^<pat>$" around the regex).  For example:

  match "foo" "foobar" => null
  match "foo" "foo" => []
  match "f(o+)(.*)" "foooobar" => ["oooo" "bar"]
  match "(.*/)?([^/]*)" "/dir/file.nix" => ["/dir/" "file.nix"]
  match "(.*/)?([^/]*)" "file.nix" => [null "file.nix"]

The following example finds all regular files with extension .nix or
.patch underneath the current directory:

  let

    findFiles = pat: dir: concatLists (mapAttrsToList (name: type:
      if type == "directory" then
        findFiles pat (dir + "/" + name)
      else if type == "regular" && match pat name != null then
        [(dir + "/" + name)]
      else []) (readDir dir));

  in findFiles ".*\\.(nix|patch)" (toString ./.)
2014-11-25 11:47:06 +01:00
Eelco Dolstra 4e340a983f forceString(): Accept pos argument 2014-11-25 10:23:36 +01:00
Shea Levy b0c5c2ac34 import derivation: cleanup
Before this there was a bug where a `find` was being called on a
not-yet-sorted set. The code was just a mess before anyway, so I cleaned
it up while fixing it.
2014-11-20 22:48:12 -05:00
Shea Levy 2719627bbe realiseContext: Handle all context types
Avoids an assertion
2014-11-15 21:43:51 -05:00
Shea Levy 997defa166 Add functors (callable attribute sets).
With this, attribute sets with a `__functor` attribute can be applied
just like normal functions. This can be used to attach arbitrary
metadata to a function without callers needing to treat it specially.
2014-11-15 16:12:05 -05:00
Eelco Dolstra 3a9b4a1467 Fix more warnings 2014-10-31 08:49:15 +01:00
Shea Levy 6062b12160 Fix build on gcc < 4.7 2014-10-20 12:15:50 -04:00
Eelco Dolstra ecc2c8f464 Improve printing of ASTs 2014-10-20 09:13:21 +02:00
Shea Levy 0ee1ca628a baseNameOf: Don't copy paths to the store first 2014-10-18 20:28:28 -04:00
Shea Levy d16e3c7f09 Export realiseContext in libnixexpr
Useful for importNative plugins
2014-10-17 22:15:09 -04:00
Eelco Dolstra 6bb4c0b712 mkList: Scrub better
Clearing v.app.right was not enough, because the length field of a
list only takes 32 bits, so the most significant 32 bits of v.app.left
(a.k.a. v.thunk.env) would remain. This could cause Boehm GC to
interpret it as a valid pointer.

This change reduces maximum RSS for evaluating the ‘tested’ job in
nixos/release-small.nix from 1.33 GiB to 0.80 GiB, and runtime by
about 8%.
2014-10-09 13:08:53 +02:00
Eelco Dolstra 986fbd6fab Typo 2014-10-09 11:34:48 +02:00
Eelco Dolstra b6809608cc Get rid of some unnecessary ExprConcatStrings nodes in dynamic attrs
This gives a ~18% speedup in NixOS evaluation (after converting
most calls to hasAttr/getAttr to dynamic attrs).
2014-10-05 01:04:58 +02:00
Eelco Dolstra 1418806969 Show total allocations 2014-10-05 00:39:28 +02:00
Eelco Dolstra c3f0a489f9 Add primop ‘catAttrs’ 2014-10-04 18:15:03 +02:00
Eelco Dolstra d4fcbe1687 Add primop ‘attrValues’ 2014-10-04 16:41:24 +02:00
Eelco Dolstra 58d8a213b0 Tweak 2014-10-04 11:27:23 +02:00
Eelco Dolstra 3f8576a6ab Remove some duplicate code 2014-10-03 22:37:51 +02:00
Shea Levy c08c802bf3 Add readDir primop 2014-10-03 22:32:11 +02:00
Eelco Dolstra 3b5fa8d50c Don't recompile the same regex over and over 2014-10-03 21:29:40 +02:00
Eelco Dolstra 104e55bb7f nix-env: Add regular expression support in selectors
So you can now do things like:

  $ nix-env -qa '.*zip.*'
  $ nix-env -qa '.*(firefox|chromium).*'
2014-10-03 21:29:40 +02:00
Eelco Dolstra a17c23426e printValue(): Don't print <CYCLE> for repeated values 2014-10-01 15:54:40 +02:00
Eelco Dolstra d61853430a Support control characters in JSON output 2014-09-30 00:41:18 +02:00
Eelco Dolstra 0ed1b924be Bindings: Remove copy constructor 2014-09-24 15:29:05 +02:00
Eelco Dolstra ebb1dbb3e1 Add missing static 2014-09-23 15:08:27 +02:00
Eelco Dolstra 53b044c2f6 Don't evaluate inside a "throw"
Workaround for
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41174. This caused
hydra-eval-jobs to ignore SIGINT.
2014-09-22 19:18:05 +02:00
Eelco Dolstra 0cd6596b0e Add ‘deepSeq’ primop
Note that unlike ‘lib.deepSeq’ in Nixpkgs, this handles cycles.
2014-09-22 16:05:00 +02:00
Eelco Dolstra 831fc8ea21 Make forceValueDeep work on values with cycles 2014-09-22 16:05:00 +02:00
Eelco Dolstra 1e0a799bef Rename strictForceValue -> forceValueDeep 2014-09-22 16:05:00 +02:00
Eelco Dolstra 022618c794 Handle cycles when printing a value
So this no longer crashes with a stack overflow:

  nix-instantiate -E --eval 'let as = { x = as; }; in as'

Instead it prints:

  { x = { x = <CYCLE>; }; }
2014-09-22 16:05:00 +02:00
Eelco Dolstra a54c263402 Add ‘seq’ primop 2014-09-22 16:05:00 +02:00
Eelco Dolstra eff120d1b9 Add a function ‘valueSize’
It returns the size of value, including all other values and
environments reachable from it. It is intended for debugging memory
consumption issues.
2014-09-22 16:05:00 +02:00
Eelco Dolstra 2d6cd8aafd attrNames: Don't allocate duplicates of the symbols 2014-09-19 18:11:46 +02:00
Eelco Dolstra ea525a261f Fix off-by-one 2014-09-19 18:08:14 +02:00
Eelco Dolstra 93e4f01ee3 Inline Bindings::find() 2014-09-19 16:56:13 +02:00
Eelco Dolstra 5b58991a71 Store Attrs inside Bindings
This prevents a double allocation per attribute set.
2014-09-19 16:49:41 +02:00