slackpost

#!/bin/bash

# Usage: slackpost --text="123" <channel=???>

function slackpost {
  for i in "$@"
  do
  case $i in
  -t=*|--text=*)
  TEXT="${i#*=}"
  shift # past argument=value
  ;;
  -c=*|--channel=*)
  CHANNEL="${i#*=}"
  shift # past argument=value
  ;;
  -u=*|--username=*)
  USERNAME="${i#*=}"
  shift # past argument=value
  ;;
  *)
  # unknown option
  ;;
  esac
  done
  if [ -z $TEXT ];
  then
    echo "No text specified"
    exit 1
  fi
  if [ -z $CHANNEL ];
  then
    CHANNEL="announcements"
  fi
  if [ -z $USERNAME ];
  then
    USERNAME="Gitlab"
  fi

  escapedText=$(echo $TEXT | sed 's/"/\"/g' | sed "s/'/\'/g" )
  json="{\"channel\": \"#$CHANNEL\", \"username\": \"$USERNAME\", \"text\": \"$escapedText\"}"

  curl -X POST --data-urlencode "payload=$json" <hooks.slack.com />
}