From a6e142a0820918175887abb9afa49e26349d9d6e Mon Sep 17 00:00:00 2001
From: vv01f <vv01f@noreply.gitea.c3d2.de>
Date: Mon, 6 May 2019 13:17:37 +0200
Subject: [PATCH] dirty push

---
 update-ff.sh | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 update-ff.sh

diff --git a/update-ff.sh b/update-ff.sh
new file mode 100644
index 0000000..d9c11df
--- /dev/null
+++ b/update-ff.sh
@@ -0,0 +1,64 @@
+#!/bin/bash
+#set u+x
+#~ versionno(){
+	#~ e=$1
+	#~ s=0
+	#~ l=0
+	#~ for i in $(echo ${e}|tr . " "); do
+		#~ s=$(( ${i} * 100 ** ( 3 - ${l} ) + ${s} ))
+		#~ l=$(( ${l} + 1 ))
+	#~ done
+	#~ echo ${s}
+#~ }
+url="https://download.mozilla.org/?product=firefox-latest&os=linux64&lang=en-US"
+dwldir=~/Downloads/
+cd ${dwldir}
+ffbin=$(find /opt/ -type f|grep "/firefox$"|head -1)
+# test with HEAD (-I) request for url redirect, taken from
+#   https://stackoverflow.com/questions/3074288/get-url-after-redirect
+which curl >/dev/null && url_effective=$( curl -sLI -o /dev/null -w %{url_effective} ${url} ) || { echo "tool missing: curl" && exit 1; }
+echo "Downlaod would be: "${url_effective}
+next_version=$(echo $url_effective|rev|cut -d/ -f1|cut -d. -f3-|rev|cut -d- -f2)
+curr_version=$(firefox -v|cut -d" " -f3)
+opti_version=$(${ffbin} -v|cut -d" " -f3)
+dwlfn=FirefoxSetup${next_version}.tar.bz2
+if test $? -ne 0; then opti_version=0; fi
+echo "remote : "${next_version}
+echo "local  : "${curr_version}
+echo "alt/opt: "${opti_version}
+#echo "Current Version: "${curr_version}
+#echo "Download Version: "${next_version}
+# prepare numbers
+#c=$( versionno ${curr_version} )
+#n=$( versionno ${next_version} )
+#o=$( versionno ${opti_version} )
+xfn="/usr/lib/firefox-esr/firefox-esr"
+if test ${curr_version} != ${opti_version} #-o ${c} -lt ${o} -a ${o} -ge ${n};
+then
+	test -x ${xfn} && {
+		echo "fixing link…"
+		sudo mv ${xfn} ${xfn}.old
+		sudo ln -s ${ffbin} ${xfn}
+	} || echo "executable missing: "${xfn}
+#	test $? -eq 0 && exit 0
+fi
+# stop if version is not newer
+if test ${next_version} = ${opti_version} #${n} -le ${c};
+then
+	echo "No Update!"
+#	test $? -eq 0 && exit 1
+else
+# get for new version
+sudo wget -c -O ${dwldir}${dwlfn} ${url_effective}
+err=$?
+echo -n "wget return code: "$err
+sudo rm -rf /opt/firefox/
+sudo mkdir -p /opt/firefox/
+err=$?
+echo -n "mkdir return code: "$err
+sudo tar xfvj ${dwldir}${dwlfn} -C /opt/
+# used
+# https://linuxconfig.org/how-to-install-latest-firefox-browser-on-debian-9-stretch-linux
+sudo mv /usr/lib/firefox-esr/firefox-esr /usr/lib/firefox-esr/firefox-esr.old
+sudo ln -s /opt/firefox/firefox /usr/lib/firefox-esr/firefox-esr
+fi