121 lines
4.1 KiB
Bash
Executable File
121 lines
4.1 KiB
Bash
Executable File
#!/bin/bash
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# Author: Alexander Epstein https://github.com/alexanderepstein
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currentVersion="1.5.0"
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## uses openssl aes 256 cbc encryption to encrypt file salting it with password designated by user
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encrypt()
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{
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openssl enc -aes-256-cbc -salt -a -in $1 -out $2 || { echo "File not found"; exit 1; }
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echo "Successfully encrypted"
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}
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## uses openssl aes 256 cbc decryption to decrypt file
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decrypt()
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{
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openssl enc -aes-256-cbc -d -a -in $1 -out $2 || { echo "File not found"; exit 1; }
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echo "Successfully decrypted"
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}
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update()
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{
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# Author: Alexander Epstein https://github.com/alexanderepstein
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# Update utility version 1.2.0
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# To test the tool enter in the defualt values that are in the examples for each variable
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repositoryName="Bash-Snippets" #Name of repostiory to be updated ex. Sandman-Lite
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githubUserName="alexanderepstein" #username that hosts the repostiory ex. alexanderepstein
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nameOfInstallFile="install.sh" # change this if the installer file has a different name be sure to include file extension if there is one
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latestVersion=$(curl -s https://api.github.com/repos/$githubUserName/$repositoryName/tags | grep -Eo '"name":.*?[^\\]",'| head -1 | grep -Eo "[0-9.]+" ) #always grabs the tag without the v option
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if [[ $currentVersion == "" || $repositoryName == "" || $githubUserName == "" || $nameOfInstallFile == "" ]];then
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echo "Error: update utility has not been configured correctly." >&2
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exit 1
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elif [[ $latestVersion == "" ]];then
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echo "Error: no active internet connection" >&2
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exit 1
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else
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if [[ "$latestVersion" != "$currentVersion" ]]; then
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echo "Version $latestVersion available"
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echo -n "Do you wish to update $repositoryName [Y/n]: "
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read -r answer
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if [[ "$answer" == "Y" || "$answer" == "y" ]] ;then
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cd ~ || { echo 'Update Failed' ; exit 1 ; }
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if [[ -d ~/$repositoryName ]]; then rm -r -f $repositoryName || { echo "Permissions Error: try running the update as sudo"; exit 1; } ; fi
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git clone "https://github.com/$githubUserName/$repositoryName" || { echo "Couldn't download latest version" ; exit 1; }
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cd $repositoryName || { echo 'Update Failed' ; exit 1 ;}
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git checkout "v$latestVersion" 2> /dev/null || git checkout "$latestVersion" 2> /dev/null || echo "Couldn't git checkout to stable release, updating to latest commit."
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chmod a+x install.sh #this might be necessary in your case but wasnt in mine.
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./$nameOfInstallFile "update" || exit 1
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cd ..
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rm -r -f $repositoryName || { echo "Permissions Error: update succesfull but cannot delete temp files located at ~/$repositoryName delete this directory with sudo"; exit 1; }
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else
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exit 1
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fi
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else
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echo "$repositoryName is already the latest version"
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fi
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fi
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}
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usage()
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{
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echo "Crypt tool"
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echo "Usage: crypt [flag] [inputFile] [outputFile]"
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echo " -e Encrypt the inputFile and store it in the outputFile"
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echo " -d Decrypt the inputFile and store it in the outputFile"
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echo " -u Update Bash-Snippet Tools"
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echo " -h Show the help"
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echo " -v Get the tool version"
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}
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while getopts "huve:d:" opt; do ## alows for using options in bash
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case $opt in
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e) ## when trying to encrypt run this
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if [[ $# -ne 3 ]]; then
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echo "Option -e needs and only accepts two arguments [file to encrypt] [output file]" <&2
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exit 1
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fi
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encrypt $2 $3
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;;
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\?)
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echo "Invalid option: -$OPTARG" >&2
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exit 1
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;;
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d) ## when trying to decrypt run this
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if [[ $# -ne 3 ]]; then
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echo "Option -d needs and only accepts two arguments [file to decrypt] [output file]" <&2
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exit 1
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fi
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decrypt $2 $3
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;;
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u)
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update
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exit 0
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;;
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h)
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usage
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exit 0
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;;
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v)
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echo "Version $currentVersion"
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exit 0
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;;
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:) ## will run when no arguments are provided to to e or d options
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echo "Option -$OPTARG requires an argument." >&2
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exit 1
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;;
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esac
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done
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if [[ $# == 0 ]]; then
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usage
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elif [[ $1 == "update" ]];then
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update
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exit 0
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elif [[ $1 == "help" ]];then
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usage
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exit 0
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fi
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