add fzf commands

bash_tools.sh

@@ -70,4 +70,6 @@ fi
 
 # -A: get rid of . and ..
 # -t: Sort by time. Display the newest first
-alias ls=ls -At
+# alias ls=ls -At
+
+source $HOME/.vim-config/bash_tools/fzf_file_seletor.sh

bash_tools/fzf_file_seletor.sh

@@ -0,0 +1,102 @@
+#!/bin/bash
+
+# For any command require a file path, this function
+# helps to select the correct file with key words
+
+ret=''
+
+# $1 keyword
+# $2 
+#   0: show all
+#   1: only show directory
+fzf_selector() {
+    ret=$1
+    fchar=(${1[@]})
+    if [ "$1" = "." ] || [ "$1" = ".." ] || [ $fchar = "-" ]; then
+        return 1
+    fi
+
+    if [ $2 = 0 ]; then
+        all_items=(*)
+    elif [ $2 = 1 ]; then
+        all_items=(*/)
+    fi
+
+    files=()
+    for item in "${all_items[@]}"; do
+        grep $1 <<< $item > /dev/null 2>&1 && \
+        files+=("$item")
+    done
+
+    # if grep find zero file
+    if [ "${#files[@]}" = "0" ]; then 
+        ret=$1
+    elif [ "${#files[@]}" = "1" ]; then 
+        ret=$files
+    else
+        select file in "${files[@]}"; do
+            ret=$file
+            break
+        done
+    fi
+}
+
+# $1 command for fzf substuting(like ls)
+# $2 original args pass to function
+# $3 command require file type (file: 0 |directory: 1)
+fzf_command_execute() {
+    local args=($@)
+    local len=${#args}
+
+    # zsh shell's array starts with 1 rather than 0
+    if [ ! -z "$ZSH_NAME" ]; then 
+        flag="${args[2]}"
+        unset 'args[2]'
+    else
+        flag="${args[1]}"
+        unset 'args[1]'
+    fi
+    
+    if [ "$len" = "2" ]; then 
+        $args
+        return 0
+    fi
+    # probably work for bash
+    #keyword="${args: -1}"
+
+    keyword="${args[-1]}"
+
+    # Delete last argument
+    # Here we assume it is a file path
+    unset 'args[-1]'
+
+    fzf_selector $keyword $flag
+    $args "$ret"
+}
+
+
+fzf_command_list_file=(\
+vim \
+)
+
+fzf_command_list_dir=(\
+ls \
+cd \
+)
+
+for c in "${fzf_command_list_file[@]}"; do
+    alias $c="fzf_command_execute $c 0"
+done
+for c in "${fzf_command_list_dir[@]}"; do
+    alias $c="fzf_command_execute $c 1"
+done
+
+# in case above functions are broken
+no_fzf(){
+    for c in "${fzf_command_list_file[@]}"; do
+        unalias $c
+    done
+    for c in "${fzf_command_list_dir[@]}"; do
+        unalias $c
+    done
+}