feat(nix): migrate lf

nix/home/default.nix

@@ -15,6 +15,7 @@ in
     ./karabiner
     ./lazydocker
     ./lazygit
+    ./lf
     ./ripgrep
     ./ruby
     ./skhd

nix/home/lf/default.nix

@@ -0,0 +1,143 @@
+{ pkgs, ... }:
+
+{
+  programs.lf =
+    {
+      enable = true;
+      settings = {
+        number = true;
+        icons = true;
+        promptfmt = "\033[34;1m%d\033[0m\033[1m%f\033[0m";
+        shell = "bash";
+        shellopts = "-eu";
+        ifs = "\\n";
+        scrolloff = 10;
+      };
+      keybindings = {
+        "<c-f>" = ":fzf_jump";
+        "<delete>" = "delete";
+        "<enter>" = "shell";
+        O = "$mimeopen --ask $f";
+        X = "!$f";
+        f = "$nvim $(fzf)";
+        gb = ":git_branch";
+        gl = "$\{{clear; git log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit}}";
+        gp = "$\{{clear; git pull --rebase || true; echo 'press ENTER'; read ENTER}}";
+        gs = "$\{{clear; git status; echo 'press ENTER'; read ENTER}}";
+        o = "&mimeopen $f";
+        x = "$$f";
+      };
+      previewer = {
+        source = pkgs.writeShellScript "pv.sh" ''
+          #!/usr/bin/env bash
+
+          case "$1" in
+          *) bat --force-colorization --paging=never --style=changes,numbers \
+          	--terminal-width $(($2 - 3)) "$1" && false ;;
+          esac
+        '';
+      };
+      commands = {
+        delete = ''
+          ''${{
+            set -f
+            printf "$fx\n"
+            printf "delete? [y/n]"
+            read ans
+            [ $ans = "y" ] && rm -rf $fx
+          }}
+        '';
+        # extract the current file with the right command
+        extract = ''
+          ''${{
+            set -f
+            case $f in
+                *.tar.bz|*.tar.bz2|*.tbz|*.tbz2) tar xjvf $f;;
+                *.tar.gz|*.tgz) tar xzvf $f;;
+                *.tar.xz|*.txz) tar xJvf $f;;
+                *.zip) unzip $f;;
+                *.rar) unrar x $f;;
+                *.7z) 7z x $f;;
+            esac
+          }}
+        '';
+        # compress current file or selected files with tar and gunzip
+        tar = ''
+          ''${{
+            set -f
+            mkdir $1
+            cp -r $fx $1
+            tar czf $1.tar.gz $1
+            rm -rf $1
+          }}
+        '';
+        # define a custom 'open' command
+        # This command is called when current file is not a directory. You may want to
+        # use either file extensions and/or mime types here. Below uses an editor for
+        # text files and a file opener for the rest.
+        open = ''
+          ''${{
+            case $(file --mime-type $f -b) in
+                text/*) $EDITOR $fx;;
+                *) for f in $fx; do setsid $OPENER $f > /dev/null 2> /dev/null & done;;
+            esac
+          }}
+        '';
+        # compress current file or selected files with zip
+        zip = ''
+          ''${{
+            set -f
+            mkdir $1
+            cp -r $fx $1
+            zip -r $1.zip $1
+            rm -rf $1
+          }}
+        '';
+        fzf_jump = ''
+          ''${{
+            res="$(find . -maxdepth 1 | fzf-tmux -p --reverse --header='Jump to location' | sed 's/\\/\\\\/g;s/"/\\"/g')"
+            if [ -d "$res" ] ; then
+                cmd="cd"
+            elif [ -f "$res" ] ; then
+                cmd="select"
+            else
+                exit 0
+            fi
+            lf -remote "send $id $cmd \"$res\""
+          }}
+        '';
+        z = ''
+          %{{
+            result="$(zoxide query --exclude "$PWD" -- "$@")"
+            lf -remote "send $id cd \"$result\""
+          }}
+        '';
+        git_branch = ''
+          ''${{
+            git branch | fzf-tmux -p --reverse | xargs git checkout
+            pwd_shell=$(pwd)
+            lf -remote "send $id updir"
+            lf -remote "send $id cd \"$pwd_shell\""
+          }}
+        '';
+      };
+      extraConfig = '''';
+    };
+
+  home.packages = with pkgs; [
+    bat
+    fzf
+    zoxide # z
+    git
+    gnutar # tar
+    unzip
+    unrar
+    p7zip # 7z
+    file # for mime-type detection
+    findutils # find
+    gnused # sed
+    xdg-utils
+    shared-mime-info
+    tmux
+  ];
+}