Class: Fontist::Import::V4ToV5Migrator

Inherits:
Object
  • Object
show all
Defined in:
lib/fontist/import/v4_to_v5_migrator.rb

Overview

Migrate v4 formulas to v5 schema

This script converts existing v4 formula files to v5 format by:

  1. Adding schema_version: 5

  2. Detecting format from file extensions in resources

  3. Detecting variable fonts from filename patterns

Usage:

Fontist::Import::V4ToV5Migrator.new(input_path, output_path).migrate_all

Constant Summary collapse

FONT_EXTENSIONS = 
%w[ttf otf woff woff2 ttc otc dfont].freeze
ARCHIVE_EXTENSIONS = 
%w[zip tar gz tgz bz2 7z rar exe cab].freeze

Instance Method Summary collapse

Constructor Details

#initialize(input_path, output_path = nil, options = {}) ⇒ V4ToV5Migrator

Returns a new instance of V4ToV5Migrator.



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# File 'lib/fontist/import/v4_to_v5_migrator.rb', line 22

def initialize(input_path, output_path = nil, options = {})
  @input_path = input_path
  @output_path = output_path || input_path
  @verbose = options[:verbose]
  @dry_run = options[:dry_run]
end

Instance Method Details

#migrate_all ⇒ Hash

Migrate all formulas in the input path

Returns:

  • (Hash) —

    results with counts of migrated, skipped, failed



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# File 'lib/fontist/import/v4_to_v5_migrator.rb', line 32

def migrate_all
  results = { migrated: 0, skipped: 0, failed: 0, errors: [] }

  files = formula_files
  log "Found #{files.size} formula file(s) to process"

  files.each do |path|
    result = migrate_file(path)
    case result
    when :migrated
      results[:migrated] += 1
    when :skipped
      results[:skipped] += 1
    end
  rescue StandardError => e
    results[:failed] += 1
    results[:errors] << { formula: path, error: e.message }
    log "✗ Failed #{File.basename(path)}: #{e.message}"
  end

  log_summary(results)
  results
end

#migrate_file(path) ⇒ Symbol

Migrate a single formula file

Parameters:

  • path (String) —

    path to formula file

Returns:

  • (Symbol) —

    :migrated or :skipped



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# File 'lib/fontist/import/v4_to_v5_migrator.rb', line 60

def migrate_file(path)
  formula_data = load_yaml_without_aliases(path)
  already_v5 = formula_data["schema_version"] == 5

  # Add schema_version: 5
  formula_data = add_schema_version(formula_data) unless already_v5

  # Check if the raw file contains YAML aliases that need resolving
  changed = file_has_yaml_aliases?(path)

  changed |= upgrade_resources(formula_data) if formula_data["resources"]

  # Nothing to do if already v5 and no fixes needed
  if already_v5 && !changed
    log "  Already v5: #{File.basename(path)}"
    return :skipped
  end

  # Calculate output path
  output_file = output_path_for(path)

  # Save if not dry run
  if @dry_run
    log "  Would save: #{output_file}"
  else
    FileUtils.mkdir_p(File.dirname(output_file))
    File.write(output_file, YAML.dump(formula_data))
    log "  Saved: #{output_file}"
  end

  :migrated
end