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add links to environment variables documentation

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fricklerhandwerk 2023-06-17 03:25:57 +02:00 committed by Valentin Gagarin
parent 6ae35534b7
commit f2b54e3b71
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25
doc/manual/src/command-ref/conf-file-prefix.md
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@ -6,28 +6,25 @@
By default Nix reads settings from the following places:
- The system-wide configuration file `sysconfdir/nix/nix.conf` (i.e.
`/etc/nix/nix.conf` on most systems), or `$NIX_CONF_DIR/nix.conf` if
`NIX_CONF_DIR` is set. Values loaded in this file are not forwarded
to the Nix daemon. The client assumes that the daemon has already
loaded them.
- The system-wide configuration file `sysconfdir/nix/nix.conf` (i.e. `/etc/nix/nix.conf` on most systems), or `$NIX_CONF_DIR/nix.conf` if [`NIX_CONF_DIR`](./env-common.md#env-NIX_CONF_DIR) is set.
- If `NIX_USER_CONF_FILES` is set, then each path separated by `:`
will be loaded in reverse order.
Values loaded in this file are not forwarded to the Nix daemon.
The client assumes that the daemon has already loaded them.
Otherwise it will look for `nix/nix.conf` files in `XDG_CONFIG_DIRS`
and `XDG_CONFIG_HOME`. If unset, `XDG_CONFIG_DIRS` defaults to
`/etc/xdg`, and `XDG_CONFIG_HOME` defaults to `$HOME/.config`
as per [XDG Base Directory Specification](https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html).
- If [`NIX_USER_CONF_FILES`](./env-common.md#env-NIX_USER_CONF_FILES) is set, then each path separated by `:` will be loaded in reverse order.
- If `NIX_CONFIG` is set, its contents is treated as the contents of
a configuration file.
Otherwise it will look for `nix/nix.conf` files in `XDG_CONFIG_DIRS` and [`XDG_CONFIG_HOME`](./env-common.md#env-XDG_CONFIG_HOME).
If unset, `XDG_CONFIG_DIRS` defaults to `/etc/xdg`, and `XDG_CONFIG_HOME` defaults to `$HOME/.config` as per [XDG Base Directory Specification](https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html).
- If [`NIX_CONFIG`](./env-common.md#env-NIX_CONFIG) is set, its contents are treated as the contents of a configuration file.
The configuration files consist of `name = value` pairs, one per
line. Other files can be included with a line like `include path`,
where *path* is interpreted relative to the current conf file and a
missing file is an error unless `!include` is used instead. Comments
start with a `#` character. Here is an example configuration file:
start with a `#` character.
Here is an example configuration file:
keep-outputs = true # Nice for developers
keep-derivations = true # Idem