Commit graph

5512 commits

Author SHA1 Message Date
Eelco Dolstra b1e3b1a4ac Treat undefined variable errors consistently
Previously, a undefined variable inside a "with" caused an EvalError
(which can be caught), while outside, it caused a ParseError (which
cannot be caught).  Now both cause an UndefinedVarError (which cannot
be caught).
2013-10-08 14:45:36 +02:00
Eelco Dolstra 6b47de580f Show the exact position of undefined variables
In particular, undefined variable errors in a "with" previously didn't
show *any* position information, so this should help a lot in those
cases.
2013-10-08 14:40:51 +02:00
Eelco Dolstra a5e0f64db3 Remove some unused functions 2013-10-08 12:30:23 +00:00
Eelco Dolstra 221a2daf34 Merge VarRef into ExprVar 2013-10-08 14:24:53 +02:00
Eelco Dolstra 176c666f36 Don't show calls to primops in stack traces
Since they don't have location information, they just give you crap
like:

  while evaluating the builtin function `getAttr':
  while evaluating the builtin function `derivationStrict':
  ...
2013-10-07 18:02:32 +02:00
Eelco Dolstra c945f015de Fix segfault in nix-repl / hydra-eval-jobs
If a "with" attribute set fails to evaluate, we have to make sure its
Env record remains unchanged.  Otherwise, repeated evaluation gives a
segfault:

  nix-repl> :a with 0; { a = x; b = x; }
  Added 2 variables.

  nix-repl> a
  error: value is an integer while an attribute set was expected

  nix-repl> b
  Segmentation fault
2013-10-02 15:24:45 +02:00
Eelco Dolstra 28e0742966 Report OOM errors better 2013-10-02 14:34:36 +02:00
Eelco Dolstra a5fb4b5b7c Fix typo 2013-10-02 14:22:49 +02:00
Eelco Dolstra faaae44f2e build-remote.pl: Don't use substituters on the remote
It's kinda pointless to check substituters on the remote side, since
we just checked them locally.
2013-09-18 14:04:03 +02:00
Eelco Dolstra f53574ebd6 RestoreSink: Slightly reduce the number of concurrent FDs 2013-09-17 12:06:59 +00:00
Eelco Dolstra d5529f5b85 Version was called 1.6, not 1.6.0 2013-09-10 17:48:11 +02:00
Eelco Dolstra b072fc04a7 Bump version number 2013-09-10 17:41:49 +02:00
Eelco Dolstra fecad91b67 Update release notes 2013-09-10 11:21:30 +02:00
Eelco Dolstra 81d658fe4a Fix readme 2013-09-09 18:11:47 +02:00
Eelco Dolstra 853d2e0aa4 Fix markdown 2013-09-09 18:10:57 +02:00
Eelco Dolstra ae50a5e7be Add a README 2013-09-09 18:09:46 +02:00
Eelco Dolstra dc670a173a Make tab-completion work on builtins 2013-09-09 17:22:42 +02:00
Eelco Dolstra e91160021f On reload, wipe the environment 2013-09-09 17:06:14 +02:00
Eelco Dolstra 498f8b0485 Add license 2013-09-09 16:17:45 +02:00
Eelco Dolstra adde4f0c8d Add :reload command 2013-09-09 16:02:46 +02:00
Eelco Dolstra ddd22c37c5 Build on Mac OS X 2013-09-09 16:02:35 +02:00
Eelco Dolstra 03ef6b69be Add system argument 2013-09-09 15:17:08 +02:00
Eelco Dolstra 3567bdb514 Add :quit command 2013-09-09 15:02:56 +02:00
Eelco Dolstra a5dffb3d3d Temporary hack to parameterize nixpkgs 2013-09-09 14:03:28 +02:00
Eelco Dolstra 3c67df928f Add sugar for defining a variable
‘x = <expr>’ is short for ‘:a { x = <expr>; }’.  Note that the
right-hand side refers to the original scope, so you get:

  nix-repl> x = 1
  nix-repl> x = x + 1
  nix-repl> x
  2

rather than an infinite recursion.
2013-09-09 13:56:53 +02:00
Eelco Dolstra 4b33c2dd4c Add help (:?) 2013-09-09 13:22:33 +02:00
Eelco Dolstra e133e91410 Support tab-completion on attribute sets
Example:

$ nix-repl '<nixos>'

> config.services.xserver.desktop<TAB>

comletes to

> config.services.xserver.desktopManager

You also get suggestions if there are multiple matches:

> config.services.xserver.desktopManager.kde4
config.services.xserver.desktopManager.kde4.enable
config.services.xserver.desktopManager.kde4.phononBackends
2013-09-09 12:00:33 +02:00
Eelco Dolstra 8e765b8876 printValue: Show assertion errors inline 2013-09-09 11:37:05 +02:00
Eelco Dolstra e587aec123 printValue: Don't show lists/attribute sets twice 2013-09-09 11:14:43 +02:00
Eelco Dolstra 7e3625f924 Improved value display
By default, we don't recurse into attribute sets or lists when
printing a value.  However, the new :p command does recurse.
2013-09-07 00:35:54 +02:00
Eelco Dolstra c6f2b89c0e Restore affinity 2013-09-06 21:00:36 +02:00
Eelco Dolstra 0abdf4beaa Add basic variable name completion 2013-09-06 19:51:59 +02:00
Eelco Dolstra 0220da3e10 Remove stray debug line 2013-09-06 17:20:19 +02:00
Eelco Dolstra 936f9d45ba Don't apply the CPU affinity hack to nix-shell (and other Perl programs)
As discovered by Todd Veldhuizen, the shell started by nix-shell has
its affinity set to a single CPU.  This is because nix-shell connects
to the Nix daemon, which causes the affinity hack to be applied.  So
we turn this off for Perl programs.
2013-09-06 16:36:56 +02:00
Eelco Dolstra cf4c29d90a Load files specified on the command line
For example:

  $ nix-repl '<nixpkgs>' '<nixos>'
  Welcome to Nix version 1.6pre3215_2c1ecf8. Type :? for help.

  Loading ‘<nixpkgs>’...
  Added 3337 variables.

  Loading ‘<nixos>’...
  Added 7 variables.

  nix-repl>
2013-09-06 15:20:06 +02:00
Domen Kožar 4b83830d0c typo 2013-09-06 15:18:07 +02:00
Eelco Dolstra b5944ac4ff Add a command :s to start a nix-shell for a derivation 2013-09-06 15:05:18 +02:00
Eelco Dolstra c6712a007f Add a command :b to build a derivation 2013-09-06 14:58:53 +02:00
Eelco Dolstra 5904262640 nix-shell: Support a .drv as argument
Fixes #161.
2013-09-06 14:58:05 +02:00
Eelco Dolstra ad0dd359b4 Don't exit on SIGINT during evaluation
However, this may leave thunks in black-holed state, so it's not
really safe.
2013-09-06 13:20:35 +02:00
Eelco Dolstra 0b419c048b Use readline history file 2013-09-06 13:14:28 +02:00
Eelco Dolstra 4fb82d3d80 Handle SIGINT to cancel the current line 2013-09-06 13:01:02 +02:00
Eelco Dolstra 504563ea44 Fix build 2013-09-06 11:54:49 +02:00
Eelco Dolstra 2c1ecf8e81 nix-env -i: Add a flag ‘--remove-all’ / ‘-r’
This is equivalent to running ‘nix-env -e '*'’ first, except that it
happens in a single transaction.  Thus, ‘nix-env -i pkgs...’ replaces
the profile with the specified set of packages.

The main motivation is to support declarative package management
(similar to environment.systemPackages in NixOS).  That is, if you
have a specification ‘profile.nix’ like this:

  with import <nixpkgs> {};
  [ thunderbird
    geeqie
    ...
  ]

then after any change to ‘profile.nix’, you can run:

  $ nix-env -f profile.nix -ir

to update the profile to match the specification.  (Without the ‘-r’
flag, if you remove a package from ‘profile.nix’, it won't be removed
from the actual profile.)

Suggested by @zefhemel.
2013-09-03 21:21:14 +02:00
Eelco Dolstra 88c07341a6 nix-env: Use wildcard match by default
That is, you don't need to pass '*' anymore, so

  nix-env -qa

is equivalent to

  nix-env -qa '*'
2013-09-03 16:35:49 +02:00
Eelco Dolstra 07a08bddf0 nix-env: Load files in ~/.nix-defexpr on demand
So if you do "nix-env -qa -A nixos", then other channels won't be
parsed/evaluated at all.
2013-09-03 15:45:32 +02:00
Eelco Dolstra c57ed84e28 Check for name collisions in the input Nix expressions 2013-09-03 15:25:51 +02:00
Eelco Dolstra ef4f5ba85e Work on Values instead of Exprs
This prevents some duplicate evaluation in nix-env and
nix-instantiate.

Also, when traversing ~/.nix-defexpr, only read regular files with the
extension .nix.  Previously it was reading files like
.../channels/binary-caches/<name>.  The only reason this didn't cause
problems is pure luck (namely, <name> shadows an actual Nix
expression, the binary-caches files happen to be syntactically valid
Nix expressions, and we iterate over the directory contents in just
the right order).
2013-09-03 13:17:51 +00:00
Eelco Dolstra 06bb2d95b4 Reformat 2013-09-03 11:04:21 +00:00
Eelco Dolstra 6f809194d7 Get rid of the parse tree cache
Since we already cache files in normal form (fileEvalCache), caching
parse trees is redundant.

Note that getting rid of this cache doesn't actually save much memory
at the moment, because parse trees are currently not freed / GC'ed.
2013-09-03 13:01:42 +02:00