From 3d2204bd8be52fda1c2bf75cf1afa7b6947c4ab2 Mon Sep 17 00:00:00 2001
From: Seokyong Jung <76677409+syjung6967@users.noreply.github.com>
Date: Wed, 19 May 2021 00:14:22 +0900
Subject: [PATCH 1/2] Less indent and check valid python more strictly

---
 guider/guider | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

diff --git a/guider/guider b/guider/guider
index a37ec493..989562e7 100755
--- a/guider/guider
+++ b/guider/guider
@@ -1,3 +1,5 @@
+#!/usr/bin/env bash
+
 # Guider Launcher
 #
 # Copyright (c) 2016-2021 Peace Lee <iipeace5@gmail.com>
@@ -7,22 +9,14 @@
 # Software Foundation; either version 2 of the License, or (at your option)
 # any later version.
 
-# check python #
-if [ ! $PYTHON ]
+# check valid Python in order: user-specified, python, python3 and 2 #
+if [ z`$PYTHON -V 2>/dev/null | cut -d' ' -f1` != "zPython" ]
     then
-        PYTHON=$(which python)
-        if [ ! $PYTHON ]
+        PYTHON=`which python || which python3 || which python2`
+        if [ z`$PYTHON -V 2>/dev/null | cut -d' ' -f1` != "zPython" ]
             then
-                PYTHON=$(which python3)
-		if [ ! $PYTHON ]
-                    then
-                        PYTHON=$(which python2)
-		        if [ ! $PYTHON ]
-                            then
-                                echo "[Error] fail to find python"
-                                exit
-                        fi
-                fi
+                echo "[Error] fail to find python"
+                exit
         fi
 fi
 

From 73b6c048ef34345bed3c86187cfc4aadcfe388b6 Mon Sep 17 00:00:00 2001
From: Seokyong Jung <76677409+syjung6967@users.noreply.github.com>
Date: Wed, 19 May 2021 00:49:12 +0900
Subject: [PATCH 2/2] check all executable files in one line

---
 guider/guider | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/guider/guider b/guider/guider
index 989562e7..57295d34 100755
--- a/guider/guider
+++ b/guider/guider
@@ -10,14 +10,11 @@
 # any later version.
 
 # check valid Python in order: user-specified, python, python3 and 2 #
+PYTHON=`which $PYTHON || which python || which python3 || which python2`
 if [ z`$PYTHON -V 2>/dev/null | cut -d' ' -f1` != "zPython" ]
     then
-        PYTHON=`which python || which python3 || which python2`
-        if [ z`$PYTHON -V 2>/dev/null | cut -d' ' -f1` != "zPython" ]
-            then
-                echo "[Error] fail to find python"
-                exit
-        fi
+        echo "[Error] fail to find python"
+        exit
 fi
 
 # export CMDLINE for Guider #