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ghacks-user.js updater for Mac/Linux v1.3 (#406)
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* updated shebang

* The script now compares its version number to the one online.  If there is a newer version of `updater.sh` online it ask the user if he wants to download and run it.
   * 2 parameters are supported: `-donotupdate` to disable the update-check and `-update` to auto-download and run the new version without asking

* Backup files are now saved to the directory `userjs_backups` instead of causing more bloat in the profile directory.
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@overdodactyl @earthlng
overdodactyl authored and earthlng committed May 3, 2018
1 parent e67fdc2 commit 041e14a
Showing 1 changed file with 91 additions and 30 deletions.
121 changes: 91 additions & 30 deletions updater.sh
100644 → 100755
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Original file line number Diff line number Diff line change
@@ -1,12 +1,14 @@
#!/bin/bash
#!/usr/bin/env bash

### ghacks-user.js updater for Mac/Linux
## author: @overdodactyl
## version: 1.2
## version: 1.3

ghacksjs="https://raw.githubusercontent.com/ghacksuserjs/ghacks-user.js/master/user.js"
## DON'T GO HIGHER THAN VERSION x.9 !! ( because of ASCII comparison in check_for_update() )

echo -e "\nThis script should be run from your Firefox profile directory.\n"
ghacksjs="https://raw.githubusercontent.com/ghacksuserjs/ghacks-user.js/master/user.js"
updater="https://raw.githubusercontent.com/ghacksuserjs/ghacks-user.js/master/updater.sh"
update_pref=${1:--ask}

currdir=$(pwd)

Expand All @@ -19,40 +21,99 @@ if [ -z "$sfp" ]; then sfp=${BASH_SOURCE[0]}; fi
## change directory to the Firefox profile directory
cd "$(dirname "${sfp}")"

echo -e "Updating the user.js for Firefox profile:\n$(pwd)\n"
## Used to check if a new version of updater.sh is available
update_available="no"
check_for_update () {
online_version="$(curl -s ${updater} | sed -n '5 s/.*[[:blank:]]\([[:digit:]]*\.[[:digit:]]*\)/\1/p')"
path_to_script="$(dirname "${sfp}")/updater.sh"
current_version="$(sed -n '5 s/.*[[:blank:]]\([[:digit:]]*\.[[:digit:]]*\)/\1/p' "$path_to_script")"
if [[ "$current_version" < "$online_version" ]]; then
update_available="yes"
fi
}

## Used to backup the current script, and download and execute the latest version of updater.sh
update_script () {
echo -e "This script will be backed up and the latest version of updater.sh will be executed.\n"
mv updater.sh "updater.sh.backup.$(date +"%Y-%m-%d_%H%M")"
curl -O ${updater} && echo -e "\nThe latest updater script has been downloaded\n"

# make new file executable
chmod +x updater.sh

# execute new updater script
./updater.sh -donotupdate

# exit script
exit 1
}

if [ -e user.js ]; then
echo "Your current user.js file for this profile will be backed up and the latest ghacks version from github will take its place."
echo -e "\nIf currently using the ghacks user.js, please compare versions:"
echo " Available online: $(curl -s ${ghacksjs} | sed -n '4p')"
echo " Currently using: $(sed -n '4p' user.js)"
else
echo "A user.js file does not exist in this profile. If you continue, the latest ghacks version from github will be downloaded."
fi

echo -e "\nIf a user-overrides.js file exists in this profile, it will be appended to the user.js.\n"
main () {
## create backup folder if it doesn't exist
mkdir -p userjs_backups;

read -p "Continue Y/N? " -n 1 -r
echo -e "\n\n"
echo -e "\nThis script should be run from your Firefox profile directory.\n"

echo -e "Updating the user.js for Firefox profile:\n$(pwd)\n"

if [[ $REPLY =~ ^[Yy]$ ]]; then
if [ -e user.js ]; then
# backup current user.js
bakfile="user.js.backup.$(date +"%Y-%m-%d_%H%M")"
mv user.js "${bakfile}" && echo "Your previous user.js file was backed up: ${bakfile}"
echo "Your current user.js file for this profile will be backed up and the latest ghacks version from github will take its place."
echo -e "\nIf currently using the ghacks user.js, please compare versions:"
echo " Available online: $(curl -s ${ghacksjs} | sed -n '4p')"
echo " Currently using: $(sed -n '4p' user.js)"
else
echo "A user.js file does not exist in this profile. If you continue, the latest ghacks version from github will be downloaded."
fi

# download latest ghacks user.js
echo "downloading latest ghacks user.js file"
curl -O ${ghacksjs} && echo "ghacks user.js has been downloaded"
echo -e "\nIf a user-overrides.js file exists in this profile, it will be appended to the user.js.\n"

read -p "Continue Y/N? " -n 1 -r
echo -e "\n\n"

if [[ $REPLY =~ ^[Yy]$ ]]; then
if [ -e user.js ]; then
# backup current user.js
bakfile="userjs_backups/user.js.backup.$(date +"%Y-%m-%d_%H%M")"
mv user.js "${bakfile}" && echo "Your previous user.js file was backed up: ${bakfile}"
fi

# download latest ghacks user.js
echo "downloading latest ghacks user.js file"
curl -O ${ghacksjs} && echo "ghacks user.js has been downloaded"

if [ -e user-overrides.js ]; then
echo "user-overrides.js file found"
cat user-overrides.js >> user.js && echo "user-overrides.js has been appended to user.js"
if [ -e user-overrides.js ]; then
echo "user-overrides.js file found"
cat user-overrides.js >> user.js && echo "user-overrides.js has been appended to user.js"
fi
else
echo "Process aborted"
fi

## change directory back to the original working directory
cd "${currdir}"
}

update_pref="$(echo $update_pref | tr '[A-Z]' '[a-z]')"
if [ $update_pref = "-donotupdate" ]; then
main
else
echo "Process aborted"
check_for_update
if [ $update_available = "no" ]; then
main
else
## there is an update available
if [ $update_pref = "-update" ]; then
## update without asking
update_script
else
read -p "There is a newer version of updater.sh available. Download and execute? Y/N? " -n 1 -r
echo -e "\n\n"
if [[ $REPLY =~ ^[Yy]$ ]]; then
update_script
else
main
fi
fi
fi
fi

## change directory back to the original working directory
cd "${currdir}"

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