Class: MendixBridge::MigrationExecutor

Inherits:
Object
  • Object
show all
Defined in:
lib/mendix_bridge/migration_executor.rb

Defined Under Namespace

Classes: Result

Instance Method Summary collapse

Constructor Details

#initialize(mxcli:) ⇒ MigrationExecutor

Returns a new instance of MigrationExecutor.



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# File 'lib/mendix_bridge/migration_executor.rb', line 16

def initialize(mxcli:)
  @mxcli = File.expand_path(mxcli)
end

Instance Method Details

#apply(plan, project_file:, confirmation:, studio_closed:) ⇒ Object 



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# File 'lib/mendix_bridge/migration_executor.rb', line 20

def apply(plan, project_file:, confirmation:, studio_closed:)
  project_file = File.expand_path(project_file)
  validate!(plan, project_file, confirmation, studio_closed)
  project_dir = File.dirname(project_file)
  ensure_clean_git!(project_dir)
  validate_operations!(plan, project_file)
  backup_dir = create_backup(plan, project_file)

  begin
    apply_renames!(plan, project_file)
    apply_mdl!(plan, project_file)
    check_project!(project_file)
  rescue StandardError => error
    begin
      restore_backup!(backup_dir, project_file)
      check_project!(project_file)
    rescue StandardError => restore_error
      raise MigrationError,
        "migration failed and automatic restore also failed; " \
        "backup is #{backup_dir}: #{restore_error.message}"
    end
    raise MigrationError,
      "migration failed and backup was restored: #{error.message}"
  end

  Result.new(backup_dir:, operations: plan.operations.length)
end

#restore(backup_dir, project_file:, confirmation:, studio_closed:) ⇒ Object

Raises:



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# File 'lib/mendix_bridge/migration_executor.rb', line 48

def restore(backup_dir, project_file:, confirmation:, studio_closed:)
  backup_dir = File.expand_path(backup_dir)
  project_file = File.expand_path(project_file)
  manifest = read_manifest(backup_dir)
  expected = File.basename(backup_dir)
  raise MigrationError, "confirmation must exactly match #{expected}" unless
    confirmation == expected
  raise MigrationError, "--studio-closed is required" unless studio_closed
  unless File.expand_path(manifest.fetch("project_file")) == project_file
    raise MigrationError, "backup belongs to another Mendix project"
  end

  restore_backup!(backup_dir, project_file)
  check_project!(project_file)
  true
end