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stdenv.md: Remove off topic phase propaganda

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Phases are cool, I get it, but the reader will enjoy it when they
see it. And they'll see it sooner if they don't have to read about
it.
This commit is contained in:
Robert Hensing 2022-02-01 16:46:18 +01:00
parent efeefb2af1
commit b08ee51cc7
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doc/stdenv/stdenv.chapter.md
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@ -319,7 +319,7 @@ For information about how to run the updates, execute `nix-shell maintainers/scr
## Phases {#sec-stdenv-phases}
The generic builder has a number of *phases*. Package builds are split into phases to make it easier to override specific parts of the build (e.g., unpacking the sources or installing the binaries). Furthermore, it allows a nicer presentation of build logs in the Nix build farm.
The generic builder has a number of *phases*. Package builds are split into phases to make it easier to override specific parts of the build (e.g., unpacking the sources or installing the binaries).
Each phase can be overridden in its entirety either by setting the environment variable `namePhase` to a string containing some shell commands to be executed, or by redefining the shell function `namePhase`. The former is convenient to override a phase from the derivation, while the latter is convenient from a build script. However, typically one only wants to *add* some commands to a phase, e.g. by defining `postInstall` or `preFixup`, as skipping some of the default actions may have unexpected consequences. The default script for each phase is defined in the file `pkgs/stdenv/generic/setup.sh`.