Custom function to easily clone and pull upstream pullrequests

github_pr.fish

function echoR 
	echo -e "\x1b[31;1m""$argv""\x1b[0m"
end

function echoG
        echo -e "\x1b[32;1m""$argv""\x1b[0m"
end

function echoY
        echo -e "\x1b[33;1m""$argv""\x1b[0m"
end

function echoB 
        echo -e "\x1b[34;1m""$argv""\x1b[0m"
end

function gfupr
	echoR "Git Fetch Upstream Pull Request"
	if test (count $argv) -gt 1
		set -x branch $argv[2]
	else
		set -x branch $argv[1]
	end
	git fetch upstream refs/pull/$argv[1]/head:$branch
	if test $status -eq 0
		echoG "fetch successful, running checkout"
		git checkout $branch
		fish -c 'echoY "you are in branch $branch, after closing shell, you will be switched to master"; fish'
		git checkout master
		echoY "you are back in branch master"
	end	
end

function gpupr
	echoR "Git Pull Upstream Pull Request"
	set PR (git describe --contains --all HEAD)
	git pull upstream "refs/pull/$PR/head";
	if test $status -ne 0
		echoR "failed!"
	else
		echoG "done!"
		fish -c 'echoY "you are in branch $branch, after closing shell, you will be switched to master"; fish'
		git checkout master
		echoY "you are back in branch master"
	end
end

function gupr
	echoR "Git Upstream Pull Request handler"
	set BRANCH (git describe --contains --all HEAD)
	if test (count $argv) -eq 1
		#1 arg
		if test $argv[1] -eq $BRANCH
			echoY "We are on requested branch"
			gpupr
		else
			echoY "Switching branch..."
			git checkout $argv[1]
			if test $status -eq 0
				gpupr
			else
				echoR "branch des not exist, fetching..."
				gfupr $argv[1]
			end
		end
	else
		if test (count $argv) -eq 0
			echoY "assuming, we are on PR branch"
			gpupr
		else
			echoR "Wrong parameter count!"
			exit 1
		end

	end
end

Thanks for this man. I'll git it a try soon! We need more tools like this to burn those pull-requests down faster.