gistdiff.sh

#!/usr/bin/env bash

# Use two URLS from the "View" link on the verions page of a GIST

USER=mbierman
PASS=

if [[ ! -z $USER && ! -z $PASS && ! -z $1 && ! -z $2 ]]; then

	ID1=$(echo $1 | cut -d "/" -f5)
	SHA1=$(echo $1 | cut -d "/" -f6)
	raw1=$(curl -u $USER:$PASS https://api.github.com/gists/$ID1/$SHA1 | grep raw_url | cut -d '"' -f4)

	ID2=$(echo $2 | cut -d "/" -f5)
	SHA2=$(echo $2 | cut -d "/" -f6)
	raw2=$(curl -u $USER:$PASS https://api.github.com/gists/$ID2/$SHA2 | grep raw_url | cut -d '"' -f4)

	curl -u $USER:$PASS $raw1 > /tmp/F1
	curl -u $USER:$PASS $raw2 > /tmp/F2

	diff --suppress-common-lines  /tmp/F1 /tmp/F2
	
else
	echo -e "\n\n Define github username, password, and provide two revisions of a gist to be verified eg.
	`basename $0` file1 file2"
fi