#!/bin/bash

export GITHUB_REPOS=https://api.github.com/repos

github_latest() {
  local endpoint=$GITHUB_REPOS/$1/$2/releases/latest
  local auth; local res
  [[ $GITHUB_TOKEN ]] && auth="-u $GITHUB_USER:$GITHUB_TOKEN"
  if ! res=$(curl $auth -s $endpoint); then 
  return 1
  fi
  echo $res| jq .name -r
}

github_asset () {
# user repo version asset        

asset_url=$(curl -s "$GITHUB_REPOS/$1/$2/releases/tags/v$3" \
        | jq --arg aname "$4" -r '.assets[] | select(.name == $aname).browser_download_url' \
        | head -1)

if [ -z "${asset_url}" ]; then
        return 1
fi

echo $asset_url

}