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https://github.com/nix-community/home-manager
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7f7348b470
Addition of the line "local old_exit_status=$?" broke the call to powerline-go. PR #1364
123 lines
3.7 KiB
Nix
123 lines
3.7 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.programs.powerline-go;
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# Convert an option value to a string to be passed as argument to
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# powerline-go:
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valueToString = value:
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if builtins.isList value then
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builtins.concatStringsSep "," (builtins.map valueToString value)
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else if builtins.isAttrs value then
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valueToString
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(mapAttrsToList (key: val: "${valueToString key}=${valueToString val}")
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value)
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else
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builtins.toString value;
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modulesArgument = optionalString (cfg.modules != null)
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"-modules ${valueToString cfg.modules}";
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newlineArgument = optionalString cfg.newline "-newline";
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pathAliasesArgument = optionalString (cfg.pathAliases != null)
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"-path-aliases ${valueToString cfg.pathAliases}";
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otherSettingPairArgument = name: value:
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if value == true then "-${name}" else "-${name} ${valueToString value}";
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otherSettingsArgument = optionalString (cfg.settings != { })
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(concatStringsSep " "
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(mapAttrsToList otherSettingPairArgument cfg.settings));
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commandLineArguments = ''
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${modulesArgument} ${newlineArgument} ${pathAliasesArgument} ${otherSettingsArgument}
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'';
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in {
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meta.maintainers = [ maintainers.DamienCassou ];
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options = {
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programs.powerline-go = {
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enable = mkEnableOption
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"Powerline-go, a beautiful and useful low-latency prompt for your shell";
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modules = mkOption {
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default = null;
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type = types.nullOr (types.listOf types.str);
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description = ''
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List of module names to load. The list of all available
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modules as well as the choice of default ones are at
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<link xlink:href="https://github.com/justjanne/powerline-go"/>.
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'';
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example = [ "host" "ssh" "cwd" "gitlite" "jobs" "exit" ];
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};
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newline = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Set to true if the prompt should be on a line of its own.
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'';
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example = true;
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};
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pathAliases = mkOption {
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default = null;
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type = types.nullOr (types.attrsOf types.str);
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description = ''
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Pairs of full-path and corresponding desired short name. You
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may use '~' to represent your home directory but you should
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protect it to avoid shell substitution.
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'';
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example = literalExample ''
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{ "\\~/projects/home-manager" = "prj:home-manager"; }
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'';
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};
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settings = mkOption {
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default = { };
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type = with types; attrsOf (oneOf [ bool int str (listOf str) ]);
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description = ''
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This can be any key/value pair as described in
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<link xlink:href="https://github.com/justjanne/powerline-go"/>.
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'';
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example = literalExample ''
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{
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hostname-only-if-ssh = true;
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numeric-exit-codes = true;
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cwd-max-depth = 7;
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ignore-repos = [ "/home/me/big-project" "/home/me/huge-project" ];
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}
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'';
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};
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extraUpdatePS1 = mkOption {
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default = "";
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description = "Shell code to execute after the prompt is set.";
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example = ''
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PS1=$PS1"NixOS> ";
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'';
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type = types.str;
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};
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};
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};
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config = mkIf (cfg.enable && config.programs.bash.enable) {
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programs.bash.initExtra = ''
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function _update_ps1() {
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local old_exit_status=$?
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PS1="$(${pkgs.powerline-go}/bin/powerline-go -error $old_exit_status ${commandLineArguments})"
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${cfg.extraUpdatePS1}
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return $old_exit_status
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}
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if [ "$TERM" != "linux" ]; then
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PROMPT_COMMAND="_update_ps1;$PROMPT_COMMAND"
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fi
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'';
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};
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}
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