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https://github.com/nix-community/home-manager.git
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f4534a4f3c
Initialization in Zsh defaults to the Bash initialization code since Zsh is mostly Bash-compatible. This commit adds a dedicated Zsh initialization code option to make the defaulting behaviour transparent while also enabling overrides.
83 lines
2.6 KiB
Nix
83 lines
2.6 KiB
Nix
{ config, lib, ... }:
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let
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cfg = config.sshAuthSock;
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in
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{
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meta.maintainers = [ lib.maintainers.bmrips ];
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options.sshAuthSock = {
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enable = lib.mkEnableOption "" // {
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description = ''
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Whether to set {env}`SSH_AUTH_SOCK` in shells, systemd, and the D-BUS daemon
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unless it was already defined through SSH agent forwarding.
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Typically, this module will be implicitly enabled and configured by SSH
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agent modules.
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'';
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};
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initialization =
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let
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mkShellInitOption =
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shell:
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lib.mkOption {
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description = "Code that initializes {env}`SSH_AUTH_SOCK` in ${shell}.";
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type = lib.types.str;
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};
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in
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{
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bash = mkShellInitOption "bash" // {
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example = "export SSH_AUTH_SOCK=$HOME/.ssh/agent.sock";
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};
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fish = mkShellInitOption "fish" // {
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example = "set -x SSH_AUTH_SOCK $HOME/.ssh/agent.sock";
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};
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nushell = mkShellInitOption "nushell" // {
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example = "$env.SSH_AUTH_SOCK = $HOME/.ssh/agent.sock";
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};
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zsh = mkShellInitOption "zsh" // {
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example = "export SSH_AUTH_SOCK=$HOME/.ssh/agent.sock";
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default = cfg.initialization.bash;
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defaultText = lib.literalExpression "config.sshAuthSock.initialization.bash";
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};
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};
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};
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config =
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let
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# Preserve $SSH_AUTH_SOCK if it stems from a forwarded agent which is the
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# case if both $SSH_AUTH_SOCK and $SSH_CONNECTION are set.
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mkShIntegration = code: ''
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if [ -z "$SSH_AUTH_SOCK" -o -z "$SSH_CONNECTION" ]; then
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${code}
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fi
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'';
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bashIntegration = mkShIntegration cfg.initialization.bash;
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zshIntegration = mkShIntegration cfg.initialization.zsh;
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fishIntegration = ''
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if test -z "$SSH_AUTH_SOCK"; or test -z "$SSH_CONNECTION"
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${cfg.initialization.fish}
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end
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'';
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nushellIntegration =
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let
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unsetOrEmpty = var: ''("${var}" not-in $env) or ($env.${var} | is-empty)'';
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in
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''
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if ${unsetOrEmpty "SSH_AUTH_SOCK"} or ${unsetOrEmpty "SSH_CONNECTION"} {
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${cfg.initialization.nushell}
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}
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'';
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in
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lib.mkIf cfg.enable {
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# $SSH_AUTH_SOCK has to be set early since other tools rely on it
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programs.bash.profileExtra = lib.mkOrder 900 bashIntegration;
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programs.fish.shellInit = lib.mkOrder 900 fishIntegration;
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programs.nushell.extraConfig = lib.mkOrder 900 nushellIntegration;
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programs.zsh.envExtra = lib.mkOrder 900 zshIntegration;
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};
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}
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