Bash-Snippets/stocks/stocks

218 lines
8.8 KiB
Bash
Executable File

#!/usr/bin/env bash
# Author: Alexander Epstein https://github.com/alexanderepstein
# Author: Navan Chauhan https://github.com/navanchauhan
currentVersion="1.22.1"
configuredClient=""
configuredPython=""
## This function determines which http get tool the system has installed and returns an error if there isnt one
getConfiguredClient()
{
if command -v curl &>/dev/null; then
configuredClient="curl"
elif command -v wget &>/dev/null; then
configuredClient="wget"
elif command -v http &>/dev/null; then
configuredClient="httpie"
elif command -v fetch &>/dev/null; then
configuredClient="fetch"
else
echo "Error: This tool reqires either curl, wget, httpie or fetch to be installed." >&2
return 1
fi
}
## Allows to call the users configured client without if statements everywhere
httpGet()
{
case "$configuredClient" in
curl) curl -A curl -s "$@" ;;
wget) wget -qO- "$@" ;;
httpie) http -b GET "$@" ;;
fetch) fetch -q "$@" ;;
esac
}
getConfiguredPython()
{
if command -v python2 &>/dev/null; then
configuredPython="python2"
elif command -v python &>/dev/null; then
configuredPython="python"
else
echo "Error: This tool requires python 2 to be installed."
return 1
fi
}
if [[ $(uname) != "Darwin" ]]; then
python()
{
case "$configuredPython" in
python2) python2 "$@" ;;
python) python "$@" ;;
esac
}
fi
checkInternet()
{
httpGet github.com > /dev/null 2>&1 || { echo "Error: no active internet connection" >&2; return 1; } # query github with a get request
}
## This function grabs information about a stock and using python parses the
## JSON response to extrapolate the information for storage
getStockInformation()
{
stockInfo=$(httpGet "https://api.iextrading.com/1.0/stock/$1/quote") > /dev/null #grab the JSON response
export PYTHONIOENCODING=utf8 #necessary for python in some cases
echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['companyName']" > /dev/null 2>&1 || { echo "Not a valid stock symbol"; exit 1; } #checking if we get any information back from the server if not chances are it isnt a valid stock symbol
# The rest of the code is just extrapolating the data with python from the JSON response
exchangeName=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['primaryExchange']")
latestPrice=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['latestPrice']")
open=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['open']")
high=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['week52High']")
low=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['week52Low']")
close=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['close']")
priceChange=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['change']")
priceChangePercentage=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['changePercent']")
volume=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['latestVolume']")
lastUpdated=$(echo $stockInfo | python -c "import sys, json; print json.load(sys.stdin)['latestUpdate']")
unset stockInfo # done with the JSON response not needed anymore
}
## This function uses all the variables that are set by getStockInformation and
## prints them out to the user in a human readable format
printStockInformation()
{
echo
echo $symbol stock info
echo "============================================="
echo "| Exchange Name: $exchangeName"
echo "| Latest Price: $latestPrice"
if [[ $open != "--" ]]; then echo "| Open (Current Trading Day): $open"; fi ## sometime this is blank only print if value is present
if [[ $high != "--" ]]; then echo "| High (Week52): $high"; fi ## sometime this is blank only print if value is present
if [[ $low != "--" ]]; then echo "| Low (Week52): $low"; fi ## sometime this /is blank only print if value is present
echo "| Close (Previous Trading Day): $close"
echo "| Price Change: $priceChange"
if [[ $priceChangePercentage != "%" ]];then echo "| Price Change Percentage: $priceChangePercentage"; fi ## sometime this is blank only print if value is present
if [[ $volume != "--" ]];then echo "| Volume (Current Trading Day): $volume"; fi ## sometime this is blank only print if value is present
echo "| Last Updated: $lastUpdated"
echo "============================================="
echo
}
## This function queries google to determine the stock ticker for a certain company
## this allows the usage of stocks to be extended where now you can enter stocks appple
## and it will determine the stock symbol for apple is AAPL and move on from there
getTicker()
{
input=$(echo "$@" | tr " " +)
response=$(httpGet "http://d.yimg.com/autoc.finance.yahoo.com/autoc?query=$input&region=1&lang=en%22") > /dev/null
symbol=$(echo $response | python -c "import sys, json; print json.load(sys.stdin)['ResultSet']['Result'][0]['symbol']") # using python to extrapolate the stock symbol
unset response #just unsets the entire response after using it since all I need is the stock ticker
}
update()
{
# Author: Alexander Epstein https://github.com/alexanderepstein
# Update utility version 2.2.0
# To test the tool enter in the defualt values that are in the examples for each variable
repositoryName="Bash-Snippets" #Name of repostiory to be updated ex. Sandman-Lite
githubUserName="alexanderepstein" #username that hosts the repostiory ex. alexanderepstein
nameOfInstallFile="install.sh" # change this if the installer file has a different name be sure to include file extension if there is one
latestVersion=$(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
if [[ $currentVersion == "" || $repositoryName == "" || $githubUserName == "" || $nameOfInstallFile == "" ]]; then
echo "Error: update utility has not been configured correctly." >&2
exit 1
elif [[ $latestVersion == "" ]]; then
echo "Error: no active internet connection" >&2
exit 1
else
if [[ "$latestVersion" != "$currentVersion" ]]; then
echo "Version $latestVersion available"
echo -n "Do you wish to update $repositoryName [Y/n]: "
read -r answer
if [[ "$answer" == [Yy] ]]; then
cd ~ || { echo 'Update Failed'; exit 1; }
if [[ -d ~/$repositoryName ]]; then rm -r -f $repositoryName || { echo "Permissions Error: try running the update as sudo"; exit 1; } ; fi
echo -n "Downloading latest version of: $repositoryName."
git clone -q "https://github.com/$githubUserName/$repositoryName" && touch .BSnippetsHiddenFile || { echo "Failure!"; exit 1; } &
while [ ! -f .BSnippetsHiddenFile ]; do { echo -n "."; sleep 2; };done
rm -f .BSnippetsHiddenFile
echo "Success!"
cd $repositoryName || { echo 'Update Failed'; exit 1; }
git checkout "v$latestVersion" 2> /dev/null || git checkout "$latestVersion" 2> /dev/null || echo "Couldn't git checkout to stable release, updating to latest commit."
chmod a+x install.sh #this might be necessary in your case but wasnt in mine.
./$nameOfInstallFile "update" || exit 1
cd ..
rm -r -f $repositoryName || { echo "Permissions Error: update succesfull but cannot delete temp files located at ~/$repositoryName delete this directory with sudo"; exit 1; }
else
exit 1
fi
else
echo "$repositoryName is already the latest version"
fi
fi
}
usage()
{
cat <<EOF
Stocks
Description: Finds the latest information on a certain stock.
Usage: stocks [flag] or stocks [company/ticker]
-u Update Bash-Snippet Tools
-h Show the help
-v Get the tool version
Examples:
stocks AAPL
stocks Tesla
EOF
}
if [[ $(uname) != "Darwin" ]]; then getConfiguredPython || exit 1; fi
getConfiguredClient || exit 1
while getopts "uvh" opt; do
case "$opt" in
\?) echo "Invalid option: -$OPTARG" >&2
exit 1
;;
h) usage
exit 0
;;
v) echo "Version $currentVersion"
exit 0
;;
u) checkInternet || exit 1
update
exit 0
;;
:) echo "Option -$OPTARG requires an argument." >&2
exit 1
;;
esac
done
if [[ $1 == "update" ]]; then
checkInternet || exit 1
update
exit 0
elif [[ $1 == "help" ]]; then
usage
exit 0
elif [[ $# == "0" ]]; then
usage
exit 0
else
checkInternet || exit 1
getTicker "$@" # the company name might have spaces so passing in all args allows for this
getStockInformation $symbol # based on the stock symbol exrapolated by the getTicker function get information on the stock
printStockInformation # print this information out to the user in a human readable format
exit 0
fi