construct a GitHub URL with a filename and optionally line number/range in the current repo/branch

gurl.fish

function gurl -a filePath lineNumber rangeEndLineNumber -d "create a URL for a file on GitHub's website, for the current repo and working branch, optionally with a line number or range"
    set branchname (git rev-parse --abbrev-ref HEAD)
    set repourl (git config --get remote.origin.url | sed s/\\.git// | sed 's/:/\//' | sed 's/.*github.com/https:\/\/github.com/') # h/t https://gist.github.com/richardmcmillen-examtime/7448300
    if test (count $argv) -eq 3
	echo $repourl/blob/$branchname/$filePath\#L$lineNumber-L$rangeEndLineNumber
    else if test (count $argv) -eq 2
    	echo "$repourl/blob/$branchname/$filepath#L$lineNumber"
    else
    	echo $repourl/blob/$branchname/$filePath
    end
end