Gemspec

The following metadata fields can be extracted from a gemspec file.
These fields are defined in the Ruby Gems specification currently at version 2.0, and are mapped according to the CodeMeta crosswalk for ruby gems.

Software metadata category	SOMEF metadata JSON path	.gemspec metadata file field
authors	authors[i].result.value	gem.authors (1)
description	description[i].resultvalue	description (2)
has_package_file	has_package_file[i].result.value	URL of the filename.gemspec file
homepage	homepage[i].result.value	homepage (3)
license - value	license[i].result.value	license/licenses (4)
license - spdx id	license[i].result.spdx_id	license/licenses (4) spdx_id
license - name	license[i].result.name	llicense/licenses name (4)
package_id	package_id[i].result.value	name (5)
requirements - value	requirements[i].result.value	requirements/add_dependency/add_development_dependency name:version (6)
requirements - name	requirements[i].result.name	requirements/add_dependency/add_development_dependency name (6)
requirements - version	requirements[i].result.version	requirements/add_dependency/add_development_dependency version (6)
requirements - development type	requirements[i].result.development_type	add_dependency -> runtime (6)
requirements - development type	requirements[i].result.development_type	add_development_dependency -> dev (6)

---

(1)
- Regex: r'gem\.author[s]?\s*=\s*(?P<value>"[^"]*"|\[[^\]]*\])'
- Example:

  s.authors     = [
    "André Arko", "Samuel Giddins", "Colby Swandale", "Hiroshi Shibata"
  ]

  s.author    = "Daniel Garijo"

(2)
- Regex: r'gem\.description\s*=\s*%q{([^}]+)}|gem\.description\s*=\s*["\']([^"\']+)["\']'

(3)
- Regex: r'gem\.homepage\s*=\s*["\']([^"\']+)["\']
- Example: s.homepage = "https://bundler.io" - Result: https://bundler.io

(4) - Regex: r'gem\.license[s]?\s*=\s*["\']([^"\']+)["\']' - if license with spdx_id:

    name
    value
    spdx_id

• if not just value
• Example: gem.license = 'MIT'
• Result: MIT

(5) - Regex: r'gem\.name\s*=\s*["\']([^"\']+)["\'] - Example: gem.name = "bootstrap-datepicker-rails" - Resutl: bootstrap-datepicker-rails

(5) - Regex1: r'gem\.requirements\s*=\s*(\[.*?\])' - Example:

spec.requirements = [
  "Java Development Kit (JDK) 1.6 or newer is required.",
  "The environment variable JAVA_HOME must be correctly defined."
]

• Result: ["Java Development Kit (JDK) 1.6 or newer is required.","The environment variable JAVA_HOME must be correctly defined."]
• Regex2: r'gem\.add_dependency\s*["\']([^"\']+)["\'](?:\s*,\s*["\']([^"\']+)["\'])?'
• Regex3: 'gem\.add_development_dependency\s*["\']([^"\']+)["\'](?:\s*,\s*["\']([^"\']+)["\'])?'
• Example:

    gem.add_dependency "railties", ">= 3.0"
    gem.add_development_dependency "bundler", ">= 1.0"

Result: add_depency --> type runtime; add_development_dependencyd --> type dev

    [{'result': {'value': 'railties: >= 3.0', 'name': 'railties', 'version': '>= 3.0', 'type': 'Software_application', 'dependency_type': 'runtime'}, 'confidence': 1, 'technique': 'code_parser', 'source': 'https://example.org/bootstrap-datepicker-rails.gemspec'}, {'result': {'value': 'bundler: >= 1.0', 'name': 'bundler', 'version': '>= 1.0', 'type': 'Software_application', 'dependency_type': 'dev'}, 'confidence': 1, 'technique': 'code_parser', 'source': 'https://example.org/bootstrap-datepicker-rails.gemspec'}]