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Author SHA1 Message Date
Scott Olson 60ba98242f Fix recognition of REPL commands. 2016-02-18 06:59:51 -06:00
Scott Olson 64080d26fe Cancel multiline input on Ctrl-C. 2016-02-18 06:50:52 -06:00
Scott Olson 2d729e4f6f Support multiline input by detecting "unfinished" parse errors. 
Fixes #4,
 2016-02-18 06:27:39 -06:00
Scott Olson f30fd9c47b Don't consider empty strings or strings beginning with numbers as variable names. 2016-02-14 01:50:47 -06:00
Scott Olson 2111098a3a Don't consider strings starting with - or ' as variable names. 2016-02-14 01:29:48 -06:00
Scott Olson f7980b4712 Parse foo-bar = expr as an assignment. 2016-02-14 01:16:30 -06:00
Eelco Dolstra 8a2f5f0607 Fix building against Nix 1.10 
Fixes #12.
 2015-09-07 13:05:58 +02:00
Susan Potter 57aeef0b6a Fix nix-repl does not support '--help' 
According to popular practice and convention `nix-repl` now supports `--help`
like a good POSIX citizen[1].

[1] https://www.gnu.org/prep/standards/html_node/Command_002dLine-Interfaces.html
 2015-07-06 15:53:47 +02:00
Eelco Dolstra 45c6405a30 Fix building against latest Nix 
Fixes #8.
Fixes #9.
 2015-06-02 13:24:24 +02:00
Eelco Dolstra f92408136e Fix building against current Nix master 2014-12-01 10:07:10 +01:00
Eelco Dolstra 71d61508f2 Support -I flag 2014-08-26 20:05:08 +02:00
Eelco Dolstra 89f9c0d41b Fix building against current Nix master 2014-08-26 20:03:12 +02:00
Eelco Dolstra 02b66e97ba Fix building against current Nix master 2014-07-24 17:53:32 +02:00
Eelco Dolstra 66b2d18243 Don't parse 'var == expr' as an assignment 2014-06-16 10:05:09 -04:00
Eelco Dolstra 1734e8a149 Fix crash in tab completion 
Fixes #1. Patch by Maxdamantus.
 2014-04-11 12:51:15 +02:00
Eelco Dolstra 22a47ab03c Fix building against Nix 1.7 2014-04-11 12:50:46 +02:00
Eelco Dolstra 6a4a8208be Fix building against current Nix 2014-01-28 10:42:23 +01:00
Eelco Dolstra 3beb6f6e76 Show derivations more concisely 2014-01-28 10:42:23 +01:00
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 adde4f0c8d Add :reload command 2013-09-09 16:02:46 +02:00
Eelco Dolstra 3567bdb514 Add :quit command 2013-09-09 15:02:56 +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 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
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 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 0f6279d874 Add a command :l for loading a file into scope 
Example:

nix-repl> :l <nixpkgs>

nix-repl> lib.range 0 10
[ 0 1 2 3 4 5 6 7 8 9 10 ]

nix-repl> :l <nixos>

nix-repl> config.boot.kernelModules
[ "vboxdrv" "vboxnetadp" ... ]
 2013-09-02 16:48:41 +00:00
Eelco Dolstra 3202206d1d Add a command :t for showing the type of an expression 2013-09-02 16:00:48 +00:00
Eelco Dolstra 287c88ca59 Support adding variables to the scope 
The command ":a <expr>" evaluates <expr> and adds the attributes in
the resulting attribute set to the interpreter scope.  For instance:

nix-repl> :a import <nixpkgs> {}

nix-repl> lib.range 0 10
[ 0 1 2 3 4 5 6 7 8 9 10 ]
 2013-09-02 17:53:58 +02:00
Eelco Dolstra e90569905e Initial version of nix-repl 
This program interactively reads a Nix expression from the user,
evaluates it, and prints the result.
 2013-09-02 15:18:15 +02:00