CHANGELOG

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[0.2.0] - 2025-10-25

Added

  • SVG detection fix for files with XML declarations

    • Fixed pattern matching order bug where SVG files with <?xml declarations were incorrectly detected as application/xml
    • Added SVG range pattern early in magic table to check for <svg tag anywhere in first 4KB
    • Now correctly detects all SVG variants including those with XML declarations, comments, DOCTYPE declarations, etc.

  • Updated tika.xml to September 2025 version

    • Synced with Ruby Marcel's latest tika.xml (1100+ new MIME type definitions)
    • Updated JavaScript MIME type from application/javascript to standard text/javascript
    • Improved detection accuracy across hundreds of file formats

  • OLE2 Word document detection improvements

    • Expanded WordDocument signature search range from 1152-4096 bytes to 0-10MB
    • Fixed range offset handling to properly skip to offset.first before reading
    • Now correctly detects old Microsoft Word .DOC files with variable directory entry locations

  • Development tooling and quality improvements

    • Added .tool-versions for asdf version management (Elixir 1.19.0, OTP 28.1)
    • Added .formatter.exs with Quokka plugin for enhanced code formatting
    • Added .editorconfig for consistent editor configuration
    • Added .credo.exs for comprehensive linting rules
    • Added comprehensive GitHub Actions CI workflow
      • Matrix builds across Elixir 1.14-1.19 and OTP 25-28
      • Warnings as errors enforcement
      • Format checking, Credo strict mode, and Dialyzer on latest versions
    • Modernized mix.exs with proper docs, coverage, and packaging configuration

Changed

  • Breaking: JavaScript files now return text/javascript instead of application/javascript
    • This aligns with the IANA standard MIME type for JavaScript
    • Updated test fixtures to reflect correct MIME type
  • Updated minimum Elixir requirement to ~> 1.14
  • Fixed negative step warning in String.slice(1..-1) → String.slice(1..-1//1)
  • Removed invalid test fixture xml.xml from SVG fixtures (plain XML, not SVG)

Fixed

  • Pattern matching order bug where generic XML patterns matched before specific SVG patterns
  • Range offset handling in magic byte matching (now properly skips to start offset)
  • Test fixture organization (removed duplicate/incorrect fixtures)

[0.1.0] - 2022-XX-XX

Initial Release

Fork of the original chaskiq/ex-marcel package, which was itself a port of Rails Marcel to Elixir.

  • MIME type detection by file extension
  • MIME type detection by magic bytes (file content analysis)
  • Support for combined extension + magic byte detection
  • Based on Apache Tika magic database