Get `rake dbshell` working for SQLite3

Add `DBShell::Sqlite3.runshell`, which takes database connection
information and starts a SQLite3 shell.

Currently the Rake task just calls the SQLite3 `.runshell` method
directly without any database adapter discrimination and also forces the
development environment. It's nice to see it working. Now, we'll need to
clean up those parts of the Rakefile.

2 files changed, 10 insertions, 3 deletions

diff --git a/lib/dbshell/rails/tasks/dbshell.rake b/lib/dbshell/rails/tasks/dbshell.rake
index 6a74c53..5d19338 100644
--- a/lib/dbshell/rails/tasks/dbshell.rake
+++ b/lib/dbshell/rails/tasks/dbshell.rake
@@ -1,6 +1,8 @@
+require 'dbshell/sqlite3_client'
+
 task :dbshell do
 # {"default"=>{"adapter"=>"sqlite3", "pool"=>5, "timeout"=>5000}, "development"=>{"adapter"=>"sqlite3", "pool"=>5, "timeout"=>5000, "database"=>"db/development.sqlite3"}, "test"=>{"adapter"=>"sqlite3", "pool"=>5, "timeout"=>5000, "database"=>"db/test.sqlite3"}, "production"=>{"adapter"=>"sqlite3", "pool"=>5, "timeout"=>5000, "database"=>"db/production.sqlite3"}}
-  Rails.application.config.database_configuration
-  # system('bash')
-  exec('bash')
+  DBShell::Sqlite3Client.runshell(
+    Rails.application.config.database_configuration['development']
+  )
 end
diff --git a/lib/dbshell/sqlite3_client.rb b/lib/dbshell/sqlite3_client.rb
index 7e962d7..adc71ef 100644
--- a/lib/dbshell/sqlite3_client.rb
+++ b/lib/dbshell/sqlite3_client.rb
@@ -1,6 +1,11 @@
 class DBShell::Sqlite3Client
   EXECUTABLE_NAME = 'sqlite3'
 
+  def self.runshell(db_info)
+    args = self.build_command(db_info)
+    exec(*args)
+  end
+
   def self.build_command(db_info)
     args = [
       EXECUTABLE_NAME,