Merge aee00f803c into aec1a885ae
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Aaditya Naik
GitHub
commit
fd6fcd9985
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#!/usr/bin/env bash
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# Author: Alexander Epstein https://github.com/alexanderepstein
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# Author: Aaditya Naik https://github.com/rincemust
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currentVersion="1.20.0"
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configuredClient=""
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# question and answer arrays-
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declare -a questions
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declare -a answers
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#defining colours
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red="\e[31;1m"
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green="\e[32;1m"
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cyan="\e[36;1m"
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yellow="\e[33;1m"
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nc="\e[0m"
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## This function determines which http get tool the system has installed and returns an error if there isnt one
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getConfiguredClient()
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{
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if command -v curl &>/dev/null; then
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configuredClient="curl"
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elif command -v wget &>/dev/null; then
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configuredClient="wget"
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elif command -v http &>/dev/null; then
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configuredClient="httpie"
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elif command -v fetch &>/dev/null; then
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configuredClient="fetch"
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else
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echo "Error: This tool reqires either curl, wget, httpie or fetch to be installed." >&2
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return 1
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fi
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}
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## Allows to call the users configured client without if statements everywhere
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httpGet()
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{
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case "$configuredClient" in
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curl) curl -A curl -s "$@" ;;
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wget) wget -qO- "$@" ;;
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httpie) http -b GET "$@" ;;
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fetch) fetch -q "$@" ;;
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esac
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}
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update()
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{
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# Author: Alexander Epstein https://github.com/alexanderepstein
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# Update utility version 1.2.0
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# To test the tool enter in the defualt values that are in the examples for each variable
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repositoryName="Bash-Snippets" #Name of repostiory to be updated ex. Sandman-Lite
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githubUserName="alexanderepstein" #username that hosts the repostiory ex. alexanderepstein
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nameOfInstallFile="install.sh" # change this if the installer file has a different name be sure to include file extension if there is one
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latestVersion=$(httpGet 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" == [Yy] ]]; 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 "$repositoryName is already the latest version"
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fi
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fi
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}
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checkInternet()
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{
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httpGet github.com > /dev/null 2>&1 || { echo "Error: no active internet connection" >&2; return 1; } # query github with a get request
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}
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usage()
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{
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cat <<EOF
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GKQuiz
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Description: A quiz that tests your general knowledge
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Usage: gkquiz [number of questions you want]
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-u Update Bash-Snippet Tools
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-h Show the help
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-v Get the tool version
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Examples:
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gkquiz 10
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(this will generate a quiz of 10 questions)
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EOF
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}
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function generateSessionToken {
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# retrieves the api token, parses the response using jq and removes the double quotes surrounding the token
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sessionToken="$(echo $(httpGet "https://opentdb.com/api_token.php?command=request") | jq '.token' | sed 's:^.\(.*\).$:\1:')"
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}
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function getQuestionSet {
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# takes in argument determining the number of questions to be asked and gets response
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jsonResponse="$(httpGet "https://opentdb.com/api.php?amount=$1&token=$sessionToken&category=9&difficulty=medium&type=boolean")"
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}
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function generateQuestionArray {
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# function to generate an array of questions from the json response
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local ind="0"
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while read -r question
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do
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# questions encoded in html encoding... use recode to decode and sed to remove the double quotes
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questions[$ind]="$(echo $question | recode html..ascii | sed 's:^.\(.*\).$:\1:')"
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ind="$((ind + 1))"
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done < <(echo "$jsonResponse" | jq '.results[].question')
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}
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function generateAnswerArray {
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# function to generate an array of answers from the json response
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local ind="0"
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while read -r answer
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do
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# answers... sed to remove the double quotes and tr to make it completely lowercase
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answers[$ind]="$(echo $answer | sed 's:^.\(.*\).$:\1:' | tr '[:upper:]' '[:lower:]')"
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ind="$((ind + 1))"
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done < <(echo $jsonResponse | jq '.results[].correct_answer')
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}
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while getopts "uvh*:" opt; do
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case "$opt" in
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h) usage
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exit 0
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;;
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v) echo "Version $currentVersion"
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exit 0
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;;
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u) getConfiguredClient || exit 1
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checkInternet || exit 1
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update
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exit 0
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;;
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esac
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done
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# special set of first arguments that have a specific behavior across tools
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if [[ $# == "0" ]]; then
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usage ## if calling the tool with no flags and args chances are you want to return usage
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exit 0
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elif [[ $# == "1" ]]; then
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if [[ $1 == "update" ]]; then
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getConfiguredClient || exit 1
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checkInternet || exit 1
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update || exit 1
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exit 0
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elif [[ $1 == "help" ]]; then
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usage
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exit 0
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else
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getConfiguredClient || exit 1
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checkInternet || exit 1
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echo -e "${red}Generating quiz..."
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generateSessionToken || exit 1
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getQuestionSet $1 || exit 1
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generateQuestionArray
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generateAnswerArray
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echo -e "${red}Answer as true or false\n\n"
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for i in $(seq 0 $((${#questions[@]} - 1)))
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do
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echo -e "${cyan}${questions[$i]}${yellow}"
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read response
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if [[ "$(echo $response | tr '[:upper:]' '[:lower:]')" == "${answers[$i]}" ]]
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then
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echo -e "${green}Correct!"
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correct="$((correct + 1))"
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else
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echo -e "${red}Wrong"
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fi
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echo -e "${nc}\n"
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done
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echo -e "You got ${yellow}$correct${nc} questions out of $1 correct!"
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fi
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else
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echo "Too many arguments" >2
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exit 1
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fi
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