Summary

This PR adds JSON output support to the dependencyLicenseInfo task, addressing issue #7771. The implementation follows the same pattern as the existing dependencyTree task which already supports JSON output (#7770).

Changes

• Created LicenseInfo.scala in sbt/internal/graph/rendering/:

  • render() method for text output (matches original implementation)
  • renderJson() method for JSON output using LList.iso pattern consistent with codebase

• Added dependencyLicenseInfo key to DependencyTreeKeys.scala

• Implemented dependencyLicenseInfo task in DependencyTreeSettings.scala:

  • Supports text output (default)
  • Supports JSON output via json format or .json file extension
  • Supports --out option for file output
  • Supports --quiet option
  • Reuses existing ArgsParser and handleOutput utilities

Features

• Groups dependencies by license
• Sorts licenses and modules alphabetically
• Filters out evicted modules
• JSON output format: Array of objects with license and modules fields
• Auto-detects JSON format from file extension (e.g., --out licenses.json)

Usage Examples

# Text output (default)
sbt dependencyLicenseInfo

# JSON output
sbt dependencyLicenseInfo json

# Write to JSON file
sbt dependencyLicenseInfo json --out licenses.json
# or simply
sbt dependencyLicenseInfo --out licenses.json

# Quiet mode (returns output as task value)
sbt "dependencyLicenseInfo json --quiet"

Related Issues

• Resolves dependencyLicenseInfo should also display/write json, not just text #7771
• Related to dependencyTree should also display/write json, not just text #7770 (dependencyTree JSON support - already implemented)

Files Changed

• main/src/main/scala/sbt/internal/graph/rendering/LicenseInfo.scala (new file, 63 lines)
• main/src/main/scala/sbt/plugins/DependencyTreeKeys.scala (+1 line)
• main/src/main/scala/sbt/plugins/DependencyTreeSettings.scala (+44 lines)

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