8ebdbeb257
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>
36 lines
1.7 KiB
Fish
36 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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