| """Post-merge pass over changes.parquet: |
| * representative: one row per underlying change (same leaf name, change, parameter and signatures within a |
| release transition), so inherited / re-exported copies of one change can be filtered out; |
| * confidence rules added after audit 3: removal of *args (often forwarded to a base class) and a class turning |
| into a plain attribute (often `Name = OtherClass` aliases) are downgraded to medium. |
| Usage: python finalize_changes.py DATA_DIR TMP_DIR""" |
| import os, sys |
| import duckdb |
|
|
| D, TMP = sys.argv[1], sys.argv[2] |
| os.makedirs(TMP, exist_ok=True) |
| con = duckdb.connect() |
| con.execute("SET memory_limit='4GB'") |
| con.execute(f"SET temp_directory='{TMP}'") |
| con.execute(f"""copy ( |
| select * replace ( |
| case when change_type in ('vararg_removed', 'varkw_removed') then 'medium' |
| when change_type = 'kind_changed' and symbol_kind = 'attribute' then 'medium' |
| else confidence end as confidence), |
| row_number() over (partition by project, to_version_index, split_part(path, '.', -1), change_type, |
| coalesce(param, ''), coalesce(old_sig, ''), coalesce(new_sig, '') |
| order by length(path), path) = 1 as representative |
| from '{D}/changes.parquet' |
| order by project, to_version_index, path, change_type |
| ) to '{D}/changes_final.parquet' (format parquet, compression zstd, row_group_size 500000)""") |
| os.replace(f"{D}/changes_final.parquet", f"{D}/changes.parquet") |
| print(con.execute(f"select confidence, count(*) from '{D}/changes.parquet' where breaking group by 1").fetchall()) |
|
|
