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0dfdd216df
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>
(cherry picked from commit 8ebdbeb257)
35 lines
1.7 KiB
Fish
35 lines
1.7 KiB
Fish
if test -n "$HOME" && test -n "$USER"
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# Set up the per-user profile.
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set NIX_LINK $HOME/.nix-profile
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# Set up environment.
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# This part should be kept in sync with nixpkgs:nixos/modules/programs/environment.nix
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set --export NIX_PROFILES "@localstatedir@/nix/profiles/default $HOME/.nix-profile"
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# Set $NIX_SSL_CERT_FILE so that Nixpkgs applications like curl work.
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if test -n "$NIX_SSH_CERT_FILE"
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: # Allow users to override the NIX_SSL_CERT_FILE
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else if test -e /etc/ssl/certs/ca-certificates.crt # NixOS, Ubuntu, Debian, Gentoo, Arch
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set --export NIX_SSL_CERT_FILE /etc/ssl/certs/ca-certificates.crt
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else if test -e /etc/ssl/ca-bundle.pem # openSUSE Tumbleweed
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set --export NIX_SSL_CERT_FILE /etc/ssl/ca-bundle.pem
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else if test -e /etc/ssl/certs/ca-bundle.crt # Old NixOS
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set --export NIX_SSL_CERT_FILE /etc/ssl/certs/ca-bundle.crt
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else if test -e /etc/pki/tls/certs/ca-bundle.crt # Fedora, CentOS
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set --export NIX_SSL_CERT_FILE /etc/pki/tls/certs/ca-bundle.crt
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else if test -e "$NIX_LINK/etc/ssl/certs/ca-bundle.crt" # fall back to cacert in Nix profile
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set --export NIX_SSL_CERT_FILE "$NIX_LINK/etc/ssl/certs/ca-bundle.crt"
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else if test -e "$NIX_LINK/etc/ca-bundle.crt" # old cacert in Nix profile
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set --export NIX_SSL_CERT_FILE "$NIX_LINK/etc/ca-bundle.crt"
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end
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# Only use MANPATH if it is already set. In general `man` will just simply
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# pick up `.nix-profile/share/man` because is it close to `.nix-profile/bin`
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# which is in the $PATH. For more info, run `manpath -d`.
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set --export --prepend --path MANPATH "$NIX_LINK/share/man"
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fish_add_path --prepend --global "$NIX_LINK/bin"
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set --erase NIX_LINK
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end
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