The entry point now holds only the parser, mode dispatch and main. Three
modules take one concern each: _usage_report_logs (where the logs are,
the state file, per-day segment planning), _usage_report_emit (preflight,
stdout, clipboard), _usage_report_run (the two run paths and the
aggregation they drive).
Verified by the 100%-coverage tests from the previous commit. An AST
comparison of all 22 top-level defs and classes reports 22 identical, 0
mismatches.
All four modules hold 100% line+branch. 204 tests before and after. Both
CLI modes were run against the machine's real logs, which is the check
the unit tests cannot make: they stub the collaborators, so only a real
run proves the new import graph resolves.
Two lessons, recorded because the next target is a 498-line file:
This cut was too big. Two names had to be relocated after their first
placement created an import cycle, and four modules' worth of monkeypatch
targets needed re-pointing. A smaller first slice would have been cheaper.
Patching a moved function must target the module whose namespace resolves
it - the caller's, not the one it was moved to. Getting that wrong on
_run_since made main() call the real function, which read the actual atop
logs and hung the suite rather than failing.
Three import bugs (Path and _fmt_h left under TYPE_CHECKING but used at
runtime, dataclass missing where _Aggregates landed) were caught
immediately by the coverage from the previous commit.
Over-cap 38 -> 37.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011w2Pj4Ek3ZNMQVYcFHgXDY
Lifts the atop subprocess machinery into _usage_report_atop.py: running
atop, streaming its parseable output, building/caching the atop_agg C
helper, and reading its TSV. What stays is record parsing, epoch windows
and per-day merging.
Verified by the 100%-coverage tests from the previous commit. An AST
comparison of all 16 functions against HEAD reports 16 identical, 0
mismatches.
_usage_report_render.py imported _run from the parsing module; it now
imports from the module that owns it. That is the same re-export barrel
the last split shipped and had to fix in a follow-up - caught in the same
commit this time. usage_report.py needed no edit at all.
Both modules hold 100% line+branch (94/28 and 130/34, 0 missed). 179
tests before and after; the five new test files collect 8+6+4+14+5 = 37,
which is last commit's 36 plus the one re-homed out of
test_usage_report_modes.py, where it referenced a constant that had
moved out from under it.
The two test files added last commit were themselves over cap (373, 272)
so they are split five ways here - the DropZone lesson from earlier
today, where a lint fix silently added an over-cap file.
Ran the program: a real report from today's logs, through the native
atop_agg path, which is precisely the code this commit moved.
Over-cap 39 -> 38.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011w2Pj4Ek3ZNMQVYcFHgXDY
Split three ways on the file's own section banners, which already grouped the
tests by concern:
test_usage_report_merge.py (145) aggregate and window merging, PID carry-over
test_usage_report_since.py (186) pmon filtering, atop bounds, state, planning
test_usage_report_modes.py (178) start resolution, dispatch, PRC HZ, native
6 + 13 + 11 = 30, the pre-split count -- the check that matters, since a file
that failed to import would collect nothing and still report success. Also
verified a negated assertion still fails, so none of the three is vacuous.
Only the test file is split. The usage_report SOURCE files stay over cap on
purpose: measured coverage is 21% for _usage_report_render.py, 39% for
_usage_report_parsing.py and 47% for usage_report.py, so a split there would
move code no test runs and pass either way.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011w2Pj4Ek3ZNMQVYcFHgXDY
