forked from lix-project/lix
39 lines
1.8 KiB
Markdown
39 lines
1.8 KiB
Markdown
# Release X.Y (202?-??-??)
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* Nix now provides better integration with zsh's run-help feature. It is now
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included in the Nix installation in the form of an autoloadable shell
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function, run-help-nix. It picks up Nix subcommands from the currently typed
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in command and directs the user to the associated man pages.
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* `nix repl` has a new build-'n-link (`:bl`) command that builds a derivation
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while creating GC root symlinks.
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* The path produced by `builtins.toFile` is now allowed to be imported or read
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even with restricted evaluation. Note that this will not work with a
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read-only store.
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* `nix build` has a new `--print-out-paths` flag to print the resulting output paths.
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This matches the default behaviour of `nix-build`.
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* You can now specify which outputs of a derivation `nix` should
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operate on using the syntax `installable^outputs`,
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e.g. `nixpkgs#glibc^dev,static` or `nixpkgs#glibc^*`. By default,
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`nix` will use the outputs specified by the derivation's
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`meta.outputsToInstall` attribute if it exists, or all outputs
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otherwise.
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* Running nix with the new `--debugger` flag will cause it to start a repl session if
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there is an exception thrown during eval, or if `builtins.break` is called. From
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there one can inspect symbol values and evaluate nix expressions. In debug mode
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the following new repl commands are available:
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```
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:env Show env stack
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:bt Show trace stack
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:st Show current trace
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:st <idx> Change to another trace in the stack
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:c Go until end of program, exception, or builtins.break().
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:s Go one step
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```
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* `builtins.fetchTree` (and flake inputs) can now be used to fetch plain files
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over the `http(s)` and `file` protocols in addition to directory tarballs.
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