Summary

Add missing ecosystem dependencies to vcpkg.json, clarify spdlog dependency role, and standardize the manifest format.

5W1H Specification

• Who: logger_system maintainers
• What: Add common_system/thread_system dependencies, clarify spdlog usage, fix vcpkg.json
• Where: vcpkg.json and documentation
• When: Q1 2025, Tier 3 priority
• Why:
  • Ecosystem dependencies missing from manifest
  • spdlog dependency unclear (self-implementation or wrapper?)
  • vcpkg build will fail without declared dependencies
• How:
  1. Add kcenon-common-system to dependencies
  2. Add kcenon-thread-system as optional dependency
  3. Clarify spdlog role in documentation
  4. Update vcpkg.json to standard format

Current Issues

Missing Ecosystem Dependencies

README.md states:

Foundation Dependencies:

• common_system: Required - ILogger, Result
• thread_system: Optional - Async logging

Current vcpkg.json:

{
  "dependencies": [
    "fmt",
    "gtest",
    "spdlog"
  ]
}

Ecosystem dependencies not declared!

spdlog Dependency Confusion

The vcpkg.json lists spdlog as a dependency, but:

• README mentions "high-performance async logging" as self-implemented
• Unclear if spdlog is used internally or just for compatibility
• Need to document the relationship

Other vcpkg.json Problems

Proposed vcpkg.json

{
  "$schema": "https://raw.githubusercontent.com/microsoft/vcpkg-tool/main/docs/vcpkg.schema.json",
  "name": "kcenon-logger-system",
  "version": "1.0.0",
  "port-version": 0,
  "description": "High-performance C++20 async logging library with file rotation and console output",
  "homepage": "https://github.com/kcenon/logger_system",
  "license": "BSD-3-Clause",
  "supports": "!(uwp | xbox)",
  "dependencies": [
    "kcenon-common-system",
    {
      "name": "fmt",
      "version>=": "10.0.0"
    }
  ],
  "features": {
    "async": {
      "description": "Enable async logging via thread_system",
      "dependencies": [
        "kcenon-thread-system"
      ]
    },
    "testing": {
      "description": "Build unit tests",
      "dependencies": [
        { "name": "gtest", "features": ["gmock"] }
      ]
    }
  }
}

Tasks

• Add kcenon-common-system to dependencies
• Add kcenon-thread-system as optional feature dependency
• Clarify spdlog relationship in README (remove or document)
• Update vcpkg.json to standard format
• Verify vcpkg manifest mode build succeeds

Acceptance Criteria

• vcpkg.json includes all required ecosystem dependencies
• spdlog role documented or removed from dependencies
• vcpkg.json follows ecosystem standard template
• vcpkg install --manifest-mode succeeds

Dependencies

• Blocked by: vcpkg: Standardize vcpkg.json and resolve documentation inconsistencies common_system#252
• Blocked by: vcpkg: Add missing common_system dependency and standardize vcpkg.json thread_system#348 (for async feature)

Parent Epic

• Epic: vcpkg.json Standardization Across Unified System Ecosystem common_system#251