fzf.bash

# Setup fzf in Ubuntu from 24.04 and above.
# Soft link to the full path of this script
#   from ".fzf.bash" using "ln -s"
# Source the softlink ".fzf.bash" in your ".bashrc"
#
# From https://www.josean.com/posts/7-amazing-cli-tools
#
# Copyright (C) 2024 Josean Martinez
# https://github.com/josean-dev
# https://www.youtube.com/channel/UC_NZ6qLS9oJgsMKQhqAkg-w
#
# Copyright (C) 2024 Maulik Mistry <mistry01@gmail.com>
# https://github.com/m1st0

# From Ubuntu 24.04, "fd, bat, exa" have differing package
#   names or versions
# To install them, use "sudo apt install fdfind batcat eza"

# Provide location of fzf bin directory if you get a newer
#   version than Ubuntu
fzf_path="$HOME/my_builds/fzf/bin"

if [[ ! "$PATH" == *$fzf_path* ]]; then
  PATH="${PATH:+${PATH}:}$fzf_path"
fi

eval "$(fzf --bash)"

# Use fdfind instead of find
export FZF_DEFAULT_COMMAND="fdfind --hidden --strip-cwd-prefix --color=always --exclude .git"
export FZF_CTRL_T_COMMAND="${FZF_DEFAULT_COMMAND}"
export FZF_ALT_C_COMMAND="fdfind --type=d --hidden --strip-cwd-prefix --color=always --exclude .git"

# The first argument to the function ($1) is the base path to start traversal
# See the source code (completion.{bash,zsh}) for the details
_fzf_compgen_path() {
  fdfind --hidden --color=always --exclude .git . "$1"
}

_fzf_compgen_dir() {
  fdfind --type=d --hidden --color=always --exclude .git . "$1"
}

# Determine how to preview directories vs files
# To preserve colors, "--ansi" is used
show_file_or_dir_preview="if [ -d {} ]; then eza --tree {} --color=always | head -200; else batcat -n --color=always --line-range :500 {}; fi"
export FZF_CTRL_T_OPTS="--ansi --preview '$show_file_or_dir_preview'"
export FZF_ALT_C_OPTS="--ansi --preview 'eza --tree {} --color=always | head -200'"

# Advanced customization of fzf options via _fzf_comprun function
# The first argument to the function is the name of the command
# You should make sure to pass the rest of the arguments to fzf
# To preserve colors "--ansi" is used
_fzf_comprun() {
  local command=$1
  shift

  case "$command" in
    cd)           fzf --ansi --preview 'eza --tree {} --color=always | head -200' "$@" ;;
    export|unset) fzf --ansi --preview "eval 'echo ${}'"         "$@" ;;
    ssh)          fzf --ansi --preview 'dig {}'                   "$@" ;;
    *)            fzf --ansi --preview "$show_file_or_dir_preview" "$@" ;;
  esac
}