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Optimize dirDiff processing pipeline #5

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Optimize dirDiff processing pipeline #5

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@ynotopec ynotopec commented Oct 23, 2025

Summary

  • copy input files once while inflating .gz archives and reuse recorded file lists for downstream steps
  • replace repeated sed passes with a single Perl substitution per file and gather common lines via one streaming awk run
  • generate per-file diffs by subtracting common lines directly while preserving timestamps on outputs

Testing

  • ./dirDiff.sh /tmp/testdir

https://chatgpt.com/codex/tasks/task_e_68fa8b79a8e4832b841b2c1d7d3b6400

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