write_derived: skip metadata regeneration unless csv/spec-list actually change#255
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andersone1 wants to merge 12 commits intomainfrom
Open
write_derived: skip metadata regeneration unless csv/spec-list actually change#255andersone1 wants to merge 12 commits intomainfrom
andersone1 wants to merge 12 commits intomainfrom
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…ly change
- Always write the output CSV and `spec-list.yml`.
- Determine `.needs_update` from old vs new MD5 of:
- `.file` (CSV)
- `<meta>/spec-list.yml`
`.needs_update` is TRUE in these cases:
1. CSV did not exist before this call.
2. `spec-list.yml` did not exist before this call.
3. CSV content changed.
4. `spec-list.yml` content changed.
When `.needs_update` is TRUE:
- regenerate XPT
- rerender define output
- run diff generation only if `base_df` exists and `.execute_diffs` is TRUE
- write `diffs.csv` only if generated diffs are non-empty (no delete/overwrite when empty)
- as a result, `diffs.csv` reflects the most recent run that produced at least one diff
When `.needs_update` is FALSE:
- skip XPT and define regeneration
- skip diff generation (even if `.prev_file` changes)
- keep any existing `diffs.csv` unchanged (no delete/overwrite)
tests:
- assert `diffs.csv` is not created when no diffs are found
- assert XPT is not rewritten when rerunning with unchanged CSV/spec-list
- assert existing `diffs.csv` is preserved (mtime unchanged) when no new diffs are generated
- assert diff generation is skipped when `.needs_update` is FALSE
…leanup - write human-readable latest-data-diff.txt (timestamp/user header + same diff rows) - keep skip-if-unchanged behavior intact - if metadata contains legacy diffs.csv, show clear cli warning and recreate folder - update docs and tests for new output + backward-compatibility migration
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Summary
Key Changes
based .needs_update).