Atom package manager downloads monitor shell program

apmdownloads.sh

#!/bin/bash
#
# A shell program to monitor the number of downloads
# of solarized-seti-ui
# 
# Usage: apmdownloads.sh <package-name>
# Douglas Lenz, 2015
#

# First line; will be replaced
echo "Starting...";

PKG_NAME=$1

#
# In a loop, see if we can extract the number of downloads
# from the output of `apm search ...` and, if so, echo it
# to the screen.
#
while [ 1 ]
do
	#
	# run apm search and save only the line that has the right
	# package name
	#
	SEARCH_OUTPUT="$(apm search -t $PKG_NAME | grep $PKG_NAME)";

	# $RE matches "x downloads" where x is any length string of numbers
	# Prints on top of the last line, echoing the date along with it to
	# ensure that it is still working
	RE="([0-9]+ downloads)"
	if [[ $SEARCH_OUTPUT =~ $RE ]]; then echo -e "\e[1A\r-------> ${BASH_REMATCH[1]} `date`"; fi

	# wait 5 seconds before checking again
	sleep 5
done