diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/manual/src/language/builtin-constants.md | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/doc/manual/src/language/builtin-constants.md b/doc/manual/src/language/builtin-constants.md index 204daab6e..e6bc7e915 100644 --- a/doc/manual/src/language/builtin-constants.md +++ b/doc/manual/src/language/builtin-constants.md @@ -18,6 +18,8 @@ These constants are built into the Nix language evaluator: identifier for the Nix installation on which the expression is being evaluated, such as `"i686-linux"` or `"x86_64-darwin"`. + Not available in [pure evaluation mode](@docroot@/command-ref/conf-file.md#conf-pure-eval). + - [`builtins.currentTime`]{#builtins-currentTime} (integer) Return the [Unix time](https://en.wikipedia.org/wiki/Unix_time) at first evaluation. @@ -36,7 +38,6 @@ These constants are built into the Nix language evaluator: 1683705525 ``` - > **Warning** - > - > This is intended for testing and debugging only. - > Do not use it in production systems, since an impure, that is, non-constant value will break reproducibility. + The [store path](@docroot@/glossary.md#gloss-store-path) of a derivation depending on `currentTime` will differ for each evaluation. + + Not available in [pure evaluation mode](@docroot@/command-ref/conf-file.md#conf-pure-eval). |