Send Slack Message

README.md

Send Slack Message

Simple Ruby script that sends a slack message. Like Slackcat or others, but I needed more options. Uses slack-notifier gem.

YMMV.

send_slack_msg.rb

#!/usr/bin/env ruby

require 'optparse'
require 'uri'
require 'net/https'
require 'slack-notifier'

SLACK_WEBHOOK_URL=''

@slack_channel='#notifications'
@slack_username= Socket.gethostname
@slack_icon=""
@msg = ""

def parse_args(args = {})
  @print = args[:print].nil? ? true : args[:print]
  @exit = args[:exit].nil? ?  true : args[:exit]

  # now, handle the arguments...
  @opts = OptionParser.new
  @opts.banner = "Usage: #{File.basename($0)} -C '#{@slack_channel}' -U '#{@slack_username}' -I '#{@slack_icon}'  'This gets posted to Slack!'"

  @opts.on('-C', "--channel CHANNEL", "CHANNEL is required") do |channel|
    raise OptionParser::MissingArgument if channel.empty?
    @slack_channel = channel if channel.start_with?('#','@')
  end
  @opts.on("-U", "--username [USERNAME]", "Username to post as") do |user|
    @slack_username = user
  end
  @opts.on("-I", "--icon [ICON]", "Avatar to use") do |icon|
    @slack_icon = icon if (icon.start_with?(':') && icon.end_with?(':'))
  end
  @opts.on_tail("-h", "--help", "Show this message") do
    puts @opts
    exit
  end
  @opts.parse!

  @msg = ARGV.join(" ")
end

def send_slack_message(message)
  notifier = Slack::Notifier.new SLACK_WEBHOOK_URL, channel: @slack_channel, username: @slack_username
  notifier.ping "#{message}", icon_emoji: @slack_icon
end

parse_args()
send_slack_message(@msg)