feat(Bash): support bash

bash/keybindings/fzf_keybindings.sh

@@ -0,0 +1,56 @@
+#!/usr/bin/env bash
+
+if ! command -v fzf >/dev/null 2>&1; then
+  return
+fi
+
+_pj_readline_append() {
+  local text="$1"
+  [[ -z "$text" ]] && return 0
+  READLINE_LINE="${READLINE_LINE:0:READLINE_POINT}${text}${READLINE_LINE:READLINE_POINT}"
+  READLINE_POINT=$((READLINE_POINT + ${#text}))
+}
+
+__pj_fzf_file_widget() {
+  local selected_file
+  local command_to_run
+
+  if command -v fd >/dev/null 2>&1; then
+    command_to_run='fd --type f --hidden --exclude .git | fzf'
+  elif command -v rg >/dev/null 2>&1; then
+    command_to_run='rg --files --hidden --glob "!.git/*" | fzf'
+  elif command -v ag >/dev/null 2>&1; then
+    command_to_run='ag -l --hidden -g "" --ignore .git | fzf'
+  else
+    command_to_run='find . -type f 2>/dev/null | fzf'
+  fi
+
+  selected_file="$(eval "$command_to_run")"
+  _pj_readline_append "$selected_file"
+}
+
+__pj_fzf_dir_widget() {
+  local selected_dir
+  local command_to_run
+
+  if command -v fd >/dev/null 2>&1; then
+    command_to_run='fd --type d --hidden --no-ignore --exclude .git | fzf'
+  else
+    command_to_run='find . -type d 2>/dev/null | fzf'
+  fi
+
+  selected_dir="$(eval "$command_to_run")"
+  _pj_readline_append "$selected_dir"
+}
+
+__pj_fzf_history_widget() {
+  local selected_command
+
+  selected_command="$({ HISTTIMEFORMAT= history; } | sed 's/^[[:space:]]*[0-9]\+[[:space:]]*//' | fzf --height 40% --reverse --border)"
+  _pj_readline_append "$selected_command"
+}
+
+# Alt-f: file selector, Alt-d: directory selector, Alt-h: history selector
+bind -x '"\ef":__pj_fzf_file_widget'
+bind -x '"\ed":__pj_fzf_dir_widget'
+bind -x '"\eh":__pj_fzf_history_widget'