Duplicate Code: Repeated declarativeTasks blocks for syncpack in fluidBuild.config.cjs

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🔍 Duplicate Code Detected: Syncpack declarativeTasks definitions

Analysis of commit 96b0702

Assignee: @copilot

Summary

fluidBuild.config.cjs defines two declarative tasks (syncpack lint-semver-ranges and syncpack list-mismatches) with near-identical inputGlobs/outputGlobs/gitignore blocks. This is a copy-paste pattern where only the task key differs, and it risks the two tasks drifting over time.

Duplication Details

Pattern: identical declarative task configuration objects

• Severity: Medium
• Occurrences: 2
• Locations:
  • fluidBuild.config.cjs (lines 230-243)
  • fluidBuild.config.cjs (lines 244-257)
• Code Sample:

  "syncpack lint-semver-ranges": {
    inputGlobs: [
      "syncpack.config.cjs",
      "package.json",
      ...releaseGroupPackageJsonGlobs,
    ],
    outputGlobs: [
      "package.json",
      ...releaseGroupPackageJsonGlobs,
    ],
    gitignore: ["input", "output"],
  },
  "syncpack list-mismatches": {
    inputGlobs: [
      "syncpack.config.cjs",
      "package.json",
      ...releaseGroupPackageJsonGlobs,
    ],
    outputGlobs: [
      "package.json",
      ...releaseGroupPackageJsonGlobs,
    ],
    gitignore: ["input", "output"],
  },

Impact Analysis

• Maintainability: Updates to the glob set (e.g., adding/removing inputs) must be made twice.
• Bug Risk: One task can be updated while the other is accidentally left behind, creating inconsistent incremental build behavior.
• Code Bloat: ~28 lines of duplicated configuration.

Refactoring Recommendations

1. Extract a shared task object

   • Define a constant like const syncpackDeclarativeTask = { inputGlobs: [...], outputGlobs: [...], gitignore: [...] }.
   • Reuse it for both keys:
     • "syncpack lint-semver-ranges": syncpackDeclarativeTask
     • "syncpack list-mismatches": syncpackDeclarativeTask
   • Estimated effort: ~0.25h
   • Benefits: eliminates drift risk and reduces repeated edits.

2. (Optional) Use a small factory helper

   • If future variants diverge slightly, use makeSyncpackTask({ /* overrides */ }) with shallow overrides.

Implementation Checklist

• Review duplication findings
• Decide between shared-constant vs factory approach
• Implement refactor in fluidBuild.config.cjs
• Verify fluid-build incremental behavior unchanged for these tasks

Analysis Metadata

• Analyzed Files: 5 (*.cjs, *.mjs at repo root; excluding workflows/tests)
• Detection Method: Serena semantic + pattern analysis
• Commit: 96b0702
• Analysis Date: 2026-03-04T07:58:25.089Z

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