diff options
Diffstat (limited to 'infra/libkookie/home-manager/modules/programs/powerline-go.nix')
-rw-r--r-- | infra/libkookie/home-manager/modules/programs/powerline-go.nix | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/infra/libkookie/home-manager/modules/programs/powerline-go.nix b/infra/libkookie/home-manager/modules/programs/powerline-go.nix new file mode 100644 index 000000000000..8f5db8f260e1 --- /dev/null +++ b/infra/libkookie/home-manager/modules/programs/powerline-go.nix @@ -0,0 +1,144 @@ +{ config, lib, pkgs, ... }: + +with lib; + +let + + cfg = config.programs.powerline-go; + + # Convert an option value to a string to be passed as argument to + # powerline-go: + valueToString = value: + if builtins.isList value then + builtins.concatStringsSep "," (builtins.map valueToString value) + else if builtins.isAttrs value then + valueToString + (mapAttrsToList (key: val: "${valueToString key}=${valueToString val}") + value) + else + builtins.toString value; + + modulesArgument = optionalString (cfg.modules != null) + "-modules ${valueToString cfg.modules}"; + + newlineArgument = optionalString cfg.newline "-newline"; + + pathAliasesArgument = optionalString (cfg.pathAliases != null) + "-path-aliases ${valueToString cfg.pathAliases}"; + + otherSettingPairArgument = name: value: + if value == true then "-${name}" else "-${name} ${valueToString value}"; + + otherSettingsArgument = optionalString (cfg.settings != { }) + (concatStringsSep " " + (mapAttrsToList otherSettingPairArgument cfg.settings)); + + commandLineArguments = '' + ${modulesArgument} ${newlineArgument} ${pathAliasesArgument} ${otherSettingsArgument} + ''; + +in { + meta.maintainers = [ maintainers.DamienCassou ]; + + options = { + programs.powerline-go = { + enable = mkEnableOption + "Powerline-go, a beautiful and useful low-latency prompt for your shell"; + + modules = mkOption { + default = null; + type = types.nullOr (types.listOf types.str); + description = '' + List of module names to load. The list of all available + modules as well as the choice of default ones are at + <link xlink:href="https://github.com/justjanne/powerline-go"/>. + ''; + example = [ "host" "ssh" "cwd" "gitlite" "jobs" "exit" ]; + }; + + newline = mkOption { + default = false; + type = types.bool; + description = '' + Set to true if the prompt should be on a line of its own. + ''; + example = true; + }; + + pathAliases = mkOption { + default = null; + type = types.nullOr (types.attrsOf types.str); + description = '' + Pairs of full-path and corresponding desired short name. You + may use '~' to represent your home directory but you should + protect it to avoid shell substitution. + ''; + example = literalExample '' + { "\\~/projects/home-manager" = "prj:home-manager"; } + ''; + }; + + settings = mkOption { + default = { }; + type = with types; attrsOf (oneOf [ bool int str (listOf str) ]); + description = '' + This can be any key/value pair as described in + <link xlink:href="https://github.com/justjanne/powerline-go"/>. + ''; + example = literalExample '' + { + hostname-only-if-ssh = true; + numeric-exit-codes = true; + cwd-max-depth = 7; + ignore-repos = [ "/home/me/big-project" "/home/me/huge-project" ]; + } + ''; + }; + + extraUpdatePS1 = mkOption { + default = ""; + description = "Shell code to execute after the prompt is set."; + example = '' + PS1=$PS1"NixOS> "; + ''; + type = types.str; + }; + }; + }; + + config = { + programs.bash.initExtra = + mkIf (cfg.enable && config.programs.bash.enable) '' + function _update_ps1() { + local old_exit_status=$? + PS1="$(${pkgs.powerline-go}/bin/powerline-go -error $old_exit_status ${commandLineArguments})" + ${cfg.extraUpdatePS1} + return $old_exit_status + } + + if [ "$TERM" != "linux" ]; then + PROMPT_COMMAND="_update_ps1;$PROMPT_COMMAND" + fi + ''; + + programs.zsh.initExtra = mkIf (cfg.enable && config.programs.zsh.enable) '' + function powerline_precmd() { + PS1="$(${pkgs.powerline-go}/bin/powerline-go -error $? -shell zsh ${commandLineArguments})" + ${cfg.extraUpdatePS1} + } + + function install_powerline_precmd() { + for s in "$\{precmd_functions[@]}"; do + if [ "$s" = "powerline_precmd" ]; then + return + fi + done + precmd_functions+=(powerline_precmd) + } + + if [ "$TERM" != "linux" ]; then + install_powerline_precmd + fi + ''; + }; +} |