Module: Textus::MigrateV2

Defined in:
lib/textus/migrate_v2.rb

Overview

One-shot migration: rewrites the manifest version string from textus/1 to textus/2. On-disk entry file shapes are unchanged — the only change needed is the version: line in manifest.yaml.

Class Method Summary collapse

Class Method Details

.run(root) ⇒ Object

Raises:



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# File 'lib/textus/migrate_v2.rb', line 8

def self.run(root)
  manifest_path = File.join(root, "manifest.yaml")
  raise IoError.new("manifest not found: #{manifest_path}") unless File.exist?(manifest_path)

  content = File.read(manifest_path)
  raw = YAML.safe_load(content, aliases: false)

  case raw["version"]
  when PROTOCOL
    { "protocol" => PROTOCOL, "ok" => true, "no_op" => true, "message" => "already #{PROTOCOL}" }
  when "textus/1"
    new_content = content.sub(%r{^version:\s*textus/1\s*$}, "version: #{PROTOCOL}")
    File.write(manifest_path, new_content)
    { "protocol" => PROTOCOL, "ok" => true, "from" => "textus/1", "to" => PROTOCOL }
  else
    raise UsageError.new("cannot migrate from #{raw["version"].inspect}")
  end
end