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Map-Tube-Plugin-Graph-v1.1.0

Changes for version 1.1.0 - 2026-07-21

  • This release entirely belongs to @GWS.
  • API Enhancements
    • Added new flexible render() method supporting customizable parameters:
      • format (e.g., png, svg, pdf, dot, gv).
      • driver (e.g., neato, fdp).
      • output_file path (with automatic naming fallback if set to undef).
      • base64 boolean encoding.
      • line_name (optional positional or named parameter).
    • The output file name fallback for single lines now includes the map name, too.
    • The output file name fallback is cleaned from non-word characters, making file names more readable and preventing clobbering of files outside the current folder even for (hypothetical) malicious tube maps.
    • Refactored existing methods as_png() and as_image() to act as clean, modern wrappers around render().
    • Added metadata querying methods list_drivers() and list_formats() to list GraphViz capabilities.
    • Added helper get_graphviz_supported() using IPC::Run3 and File::Which to introspect local dot binaries.
  • Prerequisites
    • Bumped minimum Perl requirement to v5.14.
    • Added dependency on File::Which and IPC::Run3 (which have always been required implicitly, because GraphViz2 requires them).
    • Removed direct usage of Data::Dumper.
  • Test Suite
    • Reorganised and expanded the test suite into modular scripts under t/:
      • t/01-render.t: Comprehensive unit coverage for the new render() parameters, drivers, and output file behavior.
      • t/02-as_image.t: Modernised verification of base64 PNG rendering.
      • t/03-as_png.t: Validation of raw binary output formatting.
      • t/04-as_graph.t: Isolated validation of graph representations.
      • t/05-graphviz-meta.t: Verification of GraphViz introspection features.
      • t/06-unusual-station-name.t: Cleaned up version of station name parsing using the new render() implementation.
    • Removed deprecated monolithic test files t/as_image.t and t/unusual-station-name.t.
  • Others
    • Updated README file.

Modules

Map::Tube::Plugin::Graph
Graph plugin for Map::Tube.
Map::Tube::Plugin::Graph::Utils
Helper package for Map::Tube::Plugin::Graph.

Other files