server: switch from mysql to sqlite

server.rb

@@ -12,7 +12,7 @@ sudo pacman -S ruby-sinatra ruby-webrick
 pikaur -S ruby-mysql2
 =end
 require 'set'
-require 'mysql2'
+require 'sqlite3'
 require 'json'
 require 'sinatra'
 require 'uri'
@@ -23,8 +23,9 @@ require 'cgi'
 DEBUG = false
 # maximum number of parts returned
 PARTS_LIMIT = 100
-# credentials for database
-CREDENTIALS = "credentials.json"
+# database file
+DB_PATH = "partdb.db"
+raise "DB file #{DB_PATH} does not exist" unless File.file? DB_PATH
 # folder name for served pages
 PUBLIC = "public"
 # folder name for part attachments (in PUBLIC)
@@ -32,8 +33,6 @@ ATTACHMENTS = "attachments"
 # port for this service
 PORT = 4245
 
-raise "database information #{CREDENTIALS} do not exist" unless File.file? CREDENTIALS
-
 # open server
 configure do
   if DEBUG then
@@ -63,10 +62,8 @@ before do
   # all replies are only JSON
   content_type 'application/json'
   # open database
-  credentials = {}
-  JSON.parse(IO.read(CREDENTIALS)).each {|key,value| credentials[key.to_sym] = value}
-  Mysql2::Client.default_query_options.merge!(:as => :hash)
-  @db = Mysql2::Client.new(credentials)
+  @db = SQLite3::Database.new(DB_PATH)
+  @db.results_as_hash = true
 end
 
 after do