Commit Graph

9 Commits

Author SHA1 Message Date
Robert Hensing
0c9fb905cb
doc/using/overrides: Relate addition to preceding text 2023-07-01 15:25:17 +02:00
Artturin
fb643f3260 doc/using/overrides: it is possible to use previous arguments in .override 2023-06-30 23:28:00 +03:00
Artturin
0fdae31531 stdenv: let overrideAttrs accept attrset OR function
Makes overrideAttrs usable in the same way that `override` can be used.
It allows the first argument of `overrideAttrs` to be either a function
or an attrset, instead of only a function:

hello.overrideAttrs (old: { postBuild = "echo hello"; })
hello.overrideAttrs { postBuild = "echo hello"; }

Previously only the first example was possible.

Co-authored-by: adisbladis <adisbladis@gmail.com>
Co-authored-by: matthewcroughan <matt@croughan.sh>
2023-06-30 23:28:00 +03:00
Naïm Favier
4df10debe7
lib/customisation.overrideDerivation: propagate evaluation condition
The new derivation should evaluate only if the old derivation does.

Sadly this means that the old derivation cannot depend on the new one
any more, which was used by xorgserver on Darwin. But this is not a
problem as `overrideAttrs` can (and should) usually be used instead.

This change allowed catching an invalid `meta.platforms` in the linux_rpi
kernels, which use `overrideDerivation`.
2023-01-01 14:10:42 +01:00
Colin Arnott
bac379f30a
doc: use sri hash syntax
The nixpkgs manual contains references to both sri hash and explicit
sha256 attributes. This is at best confusing to new users. Since the
final destination is exclusive use of sri hashes, see nixos/rfcs#131,
might as well push new users in that direction gently.

Notable exceptions to sri hash support are builtins.fetchTarball,
cataclysm-dda, coq, dockerTools.pullimage, elixir.override, and
fetchCrate. None, other than builtins.fetchTarball, are fundamentally
incompatible, but all currently accept explicit sha256 attributes as
input. Because adding backwards compatibility is out of scope for this
change, they have been left intact, but migration to sri format has been
made for any using old hash formats.

All hashes have been manually tested to be accurate, and updates were
only made for missing upstream artefacts or bugs.
2022-12-04 06:12:18 +00:00
Robert Hensing
0e00acafe9 stdenv.mkDerivation: public -> finalPackage 2022-05-02 08:49:33 +02:00
Robert Hensing
1bbb5a14c8 doc/using/overrides: Update for overlay style mkDerivation overrideAttrs 2022-05-02 08:49:31 +02:00
Jan Tojnar
6ecc641d08
doc: prepare for commonmark
We are still using Pandoc’s Markdown parser, which differs from CommonMark spec slightly.

Notably:
- Line breaks in lists behave differently.
- Admonitions do not support the simpler syntax https://github.com/jgm/commonmark-hs/issues/75
- The auto_identifiers uses a different algorithm – I made the previous ones explicit.
- Languages (classes) of code blocks cannot contain whitespace so we have to use “pycon” alias instead of Python “console” as GitHub’s linguist

While at it, I also fixed the following issues:
- ShellSesssion was used
- Removed some pointless docbook tags.
2021-06-07 06:34:59 +02:00
fricklerhandwerk
d8b5ed331d doc/using: convert to markdown 2021-04-23 12:02:07 +02:00