From: Lukas Schauer <lukas@schauer.so>
Date: Wed, 10 Feb 2016 11:05:04 +0000 (+0100)
Subject: changed the way SCRIPTDIR is searched for so it works better with symbolic links... 
X-Git-Tag: v0.1.0~31
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=85a25b56b7c50f9c950d7de8f40d1b090acb2343;p=thirdparty%2Fdehydrated.git

changed the way SCRIPTDIR is searched for so it works better with symbolic links (e.g. a symbolic link in ~/.bin)
---

diff --git a/letsencrypt.sh b/letsencrypt.sh
index b2eff4b..c45ea71 100755
--- a/letsencrypt.sh
+++ b/letsencrypt.sh
@@ -11,8 +11,15 @@ umask 077 # paranoid umask, we're creating private keys
 # duplicate scripts IO handles
 exec 4<&0 5>&1 6>&2
 
-# Get the directory in which this script is stored
-SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+# Find directory in which this script is stored by traversing all symbolic links
+SOURCE="${0}"
+while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
+  DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
+  SOURCE="$(readlink "$SOURCE")"
+  [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
+done
+SCRIPTDIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
+
 BASEDIR="${SCRIPTDIR}"
 
 # Check for script dependencies