troupe-standup/wizard-work/spark/duplicate_find_verification.md

Duplicate Finder Script - Verification Report

Artifact Created

File: /root/.hermes/wizard-outputs/spark/duplicate_finder.py Size: 2041 bytes Syntax: Verified OK (lint pass)

Script Purpose

A Python utility to find duplicate files by SHA-256 content hash. Useful for identifying redundant files across directories.

Verification Results

Test 1: Clean directory scan

$ python3 duplicate_finder.py /root/.hermes/wizard-outputs/spark 1
No duplicates found in /root/.hermes/wizard-outputs/spark (depth <= 1)

Status: Script executed without errors (exit code 0)

Test 2: Duplicate detection

Created test directory with actual duplicates:

$ mkdir -p /tmp/dup_test
$ echo "hello world" > /tmp/dup_test/file_a.txt
$ echo "hello world" > /tmp/dup_test/file_b.txt

Ran scan:

$ python3 duplicate_finder.py /tmp/dup_test 1
Found 1 duplicate group(s):

[hash: a948904f2f0f...]
  /tmp/dup_test/file_a.txt (12 bytes)
  /tmp/dup_test/file_b.txt (12 bytes)

Status: Detected correct duplicate pair with matching hash

Usage

python3 duplicate_finder.py <directory> [max_depth]

• directory: Path to search
• max_depth: Maximum directory depth (default: 2)

Features

• SHA-256 content hashing
• Configurable max depth to avoid deep scans
• Skips hidden files and pycache
• Outputs file size for verification
• Handles permission errors gracefully

Evidence Summary

• Script file written and verified: OK
• Linting passed: OK
• Execution test 1 passed: No duplicates in clean dir
• Execution test 2 passed: Found expected duplicate pair
• Hash verification: Both duplicate files matched (a948904f2f0f...)