Set load average limit for re-renders to number of CPU threads

[chef.git] / cookbooks / mysql / libraries / mysql.rb

diff --git a/cookbooks/mysql/libraries/mysql.rb b/cookbooks/mysql/libraries/mysql.rb
index 61d600f1d547cab5fd985de442520a0418315483..ec9743c946b964574cf8f8754c45435c7eed7b20 100644 (file)
--- a/cookbooks/mysql/libraries/mysql.rb
+++ b/cookbooks/mysql/libraries/mysql.rb
@@ -1,9 +1,9 @@
-require "chef/mixin/command"
+require "chef/mixin/shell_out"
 require "rexml/document"
 
-class Chef
-  class MySQL
-    include Chef::Mixin::Command
+module OpenStreetMap
+  module MySQL
+    include Chef::Mixin::ShellOut
 
     USER_PRIVILEGES = [
       :select, :insert, :update, :delete, :create, :drop, :reload,
@@ -20,47 +20,45 @@ class Chef
       :execute, :event, :trigger
     ].freeze
 
-    def execute(options)
+    def mysql_execute(options)
       # Create argument array
       args = []
 
       # Work out how to authenticate
       if options[:user]
-        args.push("--username=#{options[:user]}")
-        args.push("--password=#{options[:password]}") if options[:password]
+        args.push("--username")
+        args.push(options[:user])
+
+        if options[:password]
+          args.push("--password")
+          args.push(options[:password])
+        end
       else
         args.push("--defaults-file=/etc/mysql/debian.cnf")
       end
 
-      # Build the other arguments
-      args.push("--execute=\"#{options[:command]}\"") if options[:command]
+      # Set output format
+      args.push("--xml") if options[:xml]
 
-      # Get the database to use
-      database = options[:database] || "mysql"
-
-      # Build the command to run
-      command = "/usr/bin/mysql #{args.join(' ')} #{database}"
+      # Add any SQL command to execute
+      if options[:command]
+        args.push("--execute")
+        args.push(options[:command])
+      end
 
-      # Escape backticks in the command
-      command.gsub!(/`/, "\\\\`")
+      # Add the database name
+      args.push(options[:database] || "mysql")
 
       # Run the command
-      run_command(:command => command, :user => "root", :group => "root")
+      shell_out!("/usr/bin/mysql", *args, :user => "root", :group => "root")
     end
 
     def query(sql, options = {})
-      # Get the database to use
-      database = options[:database] || "mysql"
-
-      # Construct the command string
-      command = "/usr/bin/mysql --defaults-file=/etc/mysql/debian.cnf --xml --execute='#{sql}' #{database}"
-
       # Run the query
-      status, stdout, stderr = output_of_command(command, :user => "root", :group => "root")
-      handle_command_failures(status, "STDOUT: #{stdout}\nSTDERR: #{stderr}", :output_on_failure => true)
+      result = mysql_execute(options.merge(:command => sql, :xml => true))
 
       # Parse the output
-      document = REXML::Document.new(stdout)
+      document = REXML::Document.new(result.stdout)
 
       # Create
       records = []
@@ -86,8 +84,10 @@ class Chef
       records
     end
 
-    def users
-      @users ||= query("SELECT * FROM user").each_with_object({}) do |user, users|
+    def mysql_users
+      privilege_columns = USER_PRIVILEGES.collect { |privilege| "#{privilege}_priv" }.join(", ")
+
+      @mysql_users ||= query("SELECT user, host, #{privilege_columns} FROM user").each_with_object({}) do |user, users|
         name = "'#{user[:user]}'@'#{user[:host]}'"
 
         users[name] = USER_PRIVILEGES.each_with_object({}) do |privilege, privileges|
@@ -96,15 +96,15 @@ class Chef
       end
     end
 
-    def databases
-      @databases ||= query("SHOW databases").each_with_object({}) do |database, databases|
+    def mysql_databases
+      @mysql_databases ||= query("SHOW databases").each_with_object({}) do |database, databases|
         databases[database[:database]] = {
           :permissions => {}
         }
       end
 
       query("SELECT * FROM db").each do |record|
-        database = @databases[record[:db]]
+        database = @mysql_databases[record[:db]]
 
         next unless database
 
@@ -115,13 +115,13 @@ class Chef
         end
       end
 
-      @databases
+      @mysql_databases
     end
 
-    def canonicalise_user(user)
+    def mysql_canonicalise_user(user)
       local, host = user.split("@")
 
-      host = "%" unless host
+      host ||= "%"
 
       local = "'#{local}'" unless local =~ /^'.*'$/
       host = "'#{host}'" unless host =~ /^'.*'$/
@@ -129,10 +129,16 @@ class Chef
       "#{local}@#{host}"
     end
 
-    def privilege_name(privilege)
+    def mysql_privilege_name(privilege)
       case privilege
       when :grant
         "GRANT OPTION"
+      when :show_db
+        "SHOW DATABASES"
+      when :repl_slave
+        "REPLICATION SLAVE"
+      when :repl_client
+        "REPLICATION CLIENT"
       when :create_tmp_table
         "CREATE TEMPORARY TABLES"
       else