nixos-config/modules/cli/powerline.nix

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{ config, lib, pkgs, ... }:
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let
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pl = lib.importJSON ./powerline-chars.json;
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theme = {
BoldForeground = true;
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CwdFg = 231;
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PathBg = 24;
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PathFg = 231;
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SeparatorFg = 16;
};
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customEnd = [{
Content = "$";
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Foreground = 231;
Background = 102;
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Separator = pl.left_hard_divider;
}];
plconfig = builtins.toFile "powerline-config.json" (builtins.toJSON {
modes.patched.Separator = pl.upper_left_triangle;
});
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args = [
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"-modules=\${remote:+'user,host,'}nix-shell,git,jobs,cwd,newline,customend"
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"-git-assume-unchanged-size 0"
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"-theme /etc/powerline-theme.json"
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"-path-aliases '~/git=~/git'"
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"-jobs $(jobs -pr | wc -l)"
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];
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in
{
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environment.systemPackages = [
pkgs.powerline-go
(pkgs.writeShellScriptBin
"powerline-go-customend"
"echo '${builtins.toJSON customEnd}'")
];
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environment.etc."powerline-theme.json".text = builtins.toJSON theme;
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programs.bash.interactiveShellInit = ''
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install -D ${plconfig} ~/.config/powerline-go/config.json
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function _update_ps1() {
local remote=y
[ "$XDG_SESSION_TYPE" = "x11" ] && unset remote
[ "$XDG_SESSION_TYPE" = "wayland" ] && unset remote
PS1="$(powerline-go ${toString args})"
}
[ "$TERM" = "linux" ] || PROMPT_COMMAND="_update_ps1; $PROMPT_COMMAND"
'';
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}