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Author SHA1 Message Date
Eelco Dolstra 4c755c3b3f Merge branch 'issue-3505' of https://github.com/kamadorueda/nix 2022-02-04 00:33:13 +01:00
pennae d439dceb3b optionally return string_view from coerceToString 
we'll retain the old coerceToString interface that returns a string, but callers
that don't need the returned value to outlive the Value it came from can save
copies by using the new interface instead. for values that weren't stringy we'll
pass a new buffer argument that'll be used for storage and shouldn't be
inspected.
 2022-01-27 22:15:30 +01:00
Kevin Amado 49b0bb0206
forceValue: make pos mandatory 
- Make passing the position to `forceValue` mandatory,
  this way we remember people that the position is
  important for better error messages
- Add pos to all `forceValue` calls
 2022-01-21 16:32:43 -05:00
Shay Bergmann ba81e871b2
toJSON: report error position for fancier output 
Given flake:

```nix
{ description = "nix json error provenance";
  inputs = {};
  outputs = { self }: {
    jsonFunction = _: "function";
    json = builtins.toJSON (_: "function");
  };
}

```
- Before:

```console
❯ nix eval --json .#jsonFunction
error: cannot convert a function to JSON
```

- After:

```console
❯ nix eval --json .#jsonFunction
error: cannot convert a function to JSON

       at /nix/store/b7imf1c2j4jnkg3ys7fsfbj02s5j0i4f-source/testflake/flake.nix:4:5:

            3|   outputs = { self }: {
            4|     jsonFunction = _: "function";
             |     ^
            5|     json = builtins.toJSON (_: "function");
```
 2021-10-25 21:17:52 +00:00
Eelco Dolstra 8e758d402b Remove mkFlag() 2021-01-27 12:06:03 +01:00
Eelco Dolstra 3da9a9241c Convert option descriptions to Markdown 2021-01-13 14:18:04 +01:00
Eelco Dolstra a407d14339
Add 'nix eval' manpage 2020-12-21 13:32:28 +01:00
Silvan Mosberger 12e65078ef
Rename Value::normalType() -> Value::type() 2020-12-17 14:45:45 +01:00
Silvan Mosberger 22ead43a0b
Use Value::normalType on all forced values instead of Value::type 2020-12-12 03:31:48 +01:00
Eelco Dolstra df552a2645 nix eval: Add option to write a directory 
This is useful for generating the nix manpages, but it may have other
applications (like generating configuration files without a Nix store).
 2020-12-02 23:23:23 +01:00
John Ericson 39de73550d Merge remote-tracking branch 'upstream/master' into fix-and-ci-static-builds 2020-10-09 18:26:47 +00:00
Eelco Dolstra 85c8be6286 Remove static variable name clashes 
This was useful for an experiment with building Nix as a single
compilation unit. It's not very useful otherwise but also doesn't
hurt...
 2020-10-06 13:49:20 +02:00
John Ericson cfe791a638 stdout_ -> cout 
Better to get creative than just sprinkle arbitrary underscores.
 2020-09-25 11:30:04 -04:00
Matthew Bauer d7ffe327ae Merge remote-tracking branch 'origin/master' into fix-and-ci-static-builds 2020-07-30 14:59:57 -05:00
Matthew Bauer 88cf6ffce3 Rename logging->stdout to logging->stdout_ 
musl doesn't like this identifier
 2020-06-29 20:34:26 +00:00
Eelco Dolstra 2e4bd78211 nix eval: Add --apply flag for post-processing the result 2020-06-17 18:12:24 +02:00
Eelco Dolstra 6f3244ce45 Merge remote-tracking branch 'origin/master' into flakes 2020-05-05 18:59:33 +02:00
Eelco Dolstra f132d82a79 nix --help: Group commands 2020-05-05 15:18:23 +02:00
Eelco Dolstra efaffaa9d1 Use Logger::stdout() 
(cherry picked from commit 8f41847394)
 2020-04-16 18:14:01 +02:00
Eelco Dolstra 8f41847394 Use Logger::stdout() 2020-04-16 13:47:59 +02:00
Eelco Dolstra 231a8aa2c2 nix edit: Support non-derivation attributes 
E.g.

  $ nix edit .#nixosConfigurations.bla

now works.

(cherry picked from commit d2032edb2f)
 2020-03-24 14:06:47 +01:00
Eelco Dolstra d2032edb2f nix edit: Support non-derivation attributes 
E.g.

  $ nix edit .#nixosConfigurations.bla

now works.
 2020-02-07 14:22:01 +01:00
Eelco Dolstra ac67685606 Make subcommand construction in MultiCommand lazy 
(cherry picked from commit a0de58f471)
 2019-12-05 20:19:26 +01:00
Eelco Dolstra ca8caaec5e nix: Add --expr flag 
This replaces the '(...)' installable syntax, which is not very
discoverable. The downside is that you can't have multiple expressions
or mix expressions and other installables.
 2019-11-27 00:05:30 +01:00
Eelco Dolstra b81d9d26f5
Merge remote-tracking branch 'origin/master' into flakes 2019-11-04 22:29:31 +01:00
kraem dcd7a26063
Update nix eval --help msg to not include deprecated command 2019-11-03 18:47:28 +01:00
Eelco Dolstra a0de58f471
Make subcommand construction in MultiCommand lazy 2019-06-18 16:25:31 +02:00
Eelco Dolstra 27b510af5c
nix eval: Stop progress bar before printing the result 2018-01-17 12:04:44 +01:00
Eelco Dolstra 16e0287556
nix eval: Take only one argument 
Thus --json no longer produces a list.
 2018-01-17 12:03:06 +01:00
Eelco Dolstra f5f29dc2b7
nix eval --raw: Use coerceToString() 
Thus,

  $ nix eval --raw '("foo")'
  foo

  $ nix eval --raw nixpkgs.hello
  /nix/store/1y6ckg6khrdsvll54s5spcmf3w6ka9k4-hello-2.10

  $ nix eval --raw '(/etc/resolv.conf)'
  /nix/store/vml92ama92i8mz013nny461mlvg8mvap-resolv.conf
 2017-11-20 18:27:29 +01:00
Eelco Dolstra 4967f0509a nix eval: Add examples 2017-09-07 20:37:46 +02:00
Eelco Dolstra 782c0bff45
nix eval: Add a --raw flag 
Similar to "jq -r", this prints the evaluation result (which must be a
string value) unquoted.
 2017-05-03 14:08:18 +02:00
Eelco Dolstra c769841bc4
Move code around 2017-04-25 12:07:31 +02:00
Eelco Dolstra 6267d74889
Add "nix eval" command 
This replaces "nix-instantiate --eval". The result is evaluated
strictly since this seems more useful.
 2017-04-25 11:23:47 +02:00