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Amy de Buitléir 2023-06-13 17:10:20 +01:00
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source/modify-hello-flake.adoc0
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@ -111,17 +111,22 @@ it available in a develoment shell. Add the following lines before the
};
....
Here is a ``diff'' showing the changes in `flake.nix`.
Here is a "`diff`" showing the changes in `flake.nix`.
....
$# sed -i '15i\\ \ \ \ \ \ \ \ devShells = rec {\n\ \ \ \ \ \ \ \ \ \ default = pkgs.mkShell {\n\ \ \ \ \ \ \ \ \ \ \ \ packages = [ pkgs.cowsay ];\n\ \ \ \ \ \ \ \ \ \ };\n\ \ \ \ \ \ \ \ };\n' flake.nix
$ git diff flake.nix
....
[source,nix,highlight=15..17]
....
$# cat flake.nix
....
We restart the development shell and see that the `cowsay` command is
now available and the script works. Because we’ve updated source files
but haven’t `git commit`ed the new version, we get a warning message
about it being ``dirty''. It’s just a warning, though; the script runs
about it being "`dirty`". It’s just a warning, though; the script runs
correctly.
....
@ -181,7 +186,7 @@ linkers. Nix invokes them for me according to the output definition in
Occasionally I want to work at a lower level, and invoke compiler,
linkers, etc. directly. Perhaps want to work on one component without
rebuilding the entire package. Or perhaps I’m confused by some error
message, so I want to temporarily bypass Nix and ``talk'' directly to
message, so I want to temporarily bypass Nix and work directly with
the compiler. In this case I temporarily switch to a _low-level
workflow_.