add rake task for updating version

Author: btoews

Rakefile

@@ -1,8 +1,8 @@
-require "bundler/gem_tasks"
-require "net/http"
-
-PEM_PATH   = File.expand_path(File.join(__FILE__, "../lib/certifi/vendor/cacert.pem"))
-MKCERT_URL = "https://mkcert.org/generate/"
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'certifi'
+require 'bundler/gem_tasks'
+require 'net/http'
 
 begin
   require 'rspec/core/rake_task'
@@ -17,8 +17,16 @@ rescue LoadError => e
   # rspec won't exist on production
 end
 
-task :update do
-  File.open(PEM_PATH, "w") do |f|
-    f.write(Net::HTTP.get(URI.parse(MKCERT_URL)))
+task :update => [:update_pem, :update_version]
+
+task :update_pem do
+  File.open(Certifi.where, 'w') do |f|
+    f.write(Net::HTTP.get(URI.parse('https://mkcert.org/generate/')))
+  end
+end
+
+task :update_version do
+  File.open(Certifi::VERSION_PATH, 'w') do |f|
+    f.write(Time.now.strftime('%Y-%m-%d'))
   end
 end

lib/certifi/VERSION

@@ -0,0 +1 @@
+2018-08-23

lib/certifi/version.rb

@@ -1,3 +1,4 @@
 module Certifi
-  VERSION = "2018.01.18"
+  VERSION_PATH = File.expand_path(File.join(File.dirname(__FILE__), "VERSION"))
+  VERSION      = File.read(VERSION_PATH)
 end