While it seems unlikely that `$USER` will be unset while `$HOME` is set,
as `$USER` is not used in the script and as `nix-profile-daemon.fish` is
not checking `$USER`, it seems better to remove this check.
`nix-profile.fish` and `nix-profile-daemon.fish` now become identical.
There seems to be no good reason for `nix-profile.fish` and
`nix-profile-daemon.fish` to differ in how they look for the location of
the `ca-bundle.crt` that might be installed by one of the packages.
As `$NIX_PROFILES` points to user local paths, not checking there is
strictly less useful, it seems?
Using `set --local` is better than using `set`/`set --erase`. `--local`
will preserve any existing `NIX_LINK` value. And the local variable is
automatically removed for any execution path.
In order for the script not be sourced multiple times by the same shell
instance, `__ETC_PROFILE_NIX_SOURCED` needs to be set with a `--global`
flag.
Both files are almost identical. And style differences make it harder
to see what is actually different and keep them in sync, when it is
required.
On non-NixOS systems, the default `nix` install does not populate the
`$XDG_DATA_DIRS`. This populates it and enables things like bash-completion
and `.desktop` file detection for `nix` profile installed packages.
Signed-off-by: Ana Hobden <operator@hoverbear.org>
The `fish_add_path` function is only available for fish 3.2.0 or newer,
and not on older versions.
This commit adds an alternative way to update the PATH when
`fish_add_path` does not exist.
Previously the MANPATH was set even if MANPATH was empty beforehand
which resulted in a MANPATH of only ~/.nix-profile/share/man which
omitted the default man page directory (commonly /opt/local/share/man)
from man page results.
Before this patch, installing Nix using the Fish shell did not
work because Fish wasn't configured to add Nix to the PATH. Some
options in #1512 offered workarounds, but they typically involve
extra plugins or packages.
This patch adds native, out-of-the-box support for the Fish shell.
Note that Fish supports a `conf.d` directory, which is intended
for exactly use cases like this: software projects distributing
shell snippets. This patch takes advantage of it. The installer
doesn't append any Nix loader behavior to any Fish config file.
Because of that, the uninstall process is smooth and a reinstall
obliterates the existing nix.fish files that we place instead of
bothering the user with a backup / manual removal.
Both single-user and multi-user cases are covered. It has been
tested on Ubuntu, and a Mac with MacPorts, homebrew, and the
Fish installer pkg.
Closes#1512
Co-authored-by: Graham Christensen <graham@grahamc.com>
