gist

#!/bin/bash

GIST_RECV_URL=http://gist.github.com/%s.txt;
GIST_POST_URL=http://gist.github.com/gists;
GIST_DEL_URL=http://gist.github.com/delete;
GIST_DESC_URL=http://gist.github.com/gists/%s/update_description;
GITHUB_USER=`git config --global github.user | tr -d \\n`;
GITHUB_TOKEN=`git config --global github.token | tr -d \\n`;
GETINDEX="gistfile1";

EXT=".txt";
NAME="";

while getopts "fhe:dpi:" optname; do
    case "$optname" in
	"h")
		echo "Usage:";
		echo " `echo $0 | sed 's/.*\///'` [-h|d|p] [-i <file>] [-e <description>] [index]";
		echo "  Options:";
		echo "		-h			Print this help text and exit";
		echo "		-e			Modify the description for a new or existing gist";
		echo "		-d			Delete an existing gist";
		echo "		-p			Make a new gist private";
		echo "		-i			Specify an input file for creating/updating a gist";;
    "p")
        PRIVATE="&private=on";;
	"f")
		FETCH="true";;
	"i")
		INFILE=$OPTARG;;
	"d")
		DELETE="true";;
	"e")
		DESC=$OPTARG;;
    *)
        echo "Unknown error while processing options"; # Should not occur
        exit;;
    esac
done
shift `expr $OPTIND - 1`;


if [ "$INFILE" = "-" ]; then
	FILENAME=""
	INFILE="/tmp/gist_`date +%Y_%m_%d_%H_%M_%S`";

	echo -n "" > $INFILE;

	while read; do
		echo $REPLY >> $INFILE
	done;
else
	FILENAME=$INFILE;
fi;	

# Create a new gist
if [ ${#INFILE} -gt 0 ]; then
	if [ ${#GITHUB_USER} -lt 1 ]; then
		echo "User name not supplied. Make sure 'git config --global github.user' and 'git config --global github.token' are set correctly";
		exit 1;
	fi;
	if [ $# -gt 0 ]; then
		GIST_POST_URL="$GIST_POST_URL/$1";
		GETINDEX=$FILENAME;
		METHOD="_method=put&";
	fi;
	curl -is --data "${METHOD}file_ext[$GETINDEX]=${EXT}&file_name[$GETINDEX]=${FILENAME}${PRIVATE}&login=$GITHUB_USER&token=$GITHUB_TOKEN" --data-urlencode "file_contents[$GETINDEX]@$INFILE" $GIST_POST_URL | sed '/^Location: http:\/\/gist\.github\.com\/*/!d; s///;q' | read PUTINDEX;
fi;

if [ $# -lt 1 ]; then
	echo $PUTINDEX;
	exit 0;
else
	PUTINDEX=$1;
fi;

# Delete a gist
if [ "$DELETE" = "true" -a ${#GITHUB_USER} -gt 0 ]; then
	curl -is "$GIST_DEL_URL/${PUTINDEX}?login=$GITHUB_USER&token=$GITHUB_TOKEN" | sed '/^Location: http:\/\/gist\.github\.com\/*/!d; s///;q' | read PUTINDEX;
fi;

if [ ${#DESC} -gt 0 ]; then
	curl -is `echo $GIST_DESC_URL | sed -e "s/%s/$PUTINDEX/"` --data "login=$GITHUB_USER&token=$GITHUB_TOKEN" --data-urlencode "description=$DESC" > /dev/null
fi;

# Fetch a gist
if [ "$FETCH" = "true" -a ${#INFILE} -lt 1 ]; then
	curl -s `echo $GIST_RECV_URL | sed -e "s/%s/$PUTINDEX/"`;
	exit 0;
fi

echo $PUTINDEX;