tweak idempotent build strategy #280
Merged
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rerun-if-changedexactly the copied Stockfish files. This way there is no way to miss newly introduced dependencies (likeStockfish/**/*.sh).Deterministically choose subdirectory in
OUT_PATHas Stockfish build dir, based on the list of source files (but not their contents). No longer attempt to clean upOUT_PATH. Stale data only remains when Stockfish changes the file structure.Without cleanup, NNUE backups are no longer required.
Remove deletion of corrupted (e.g., partially downloaded) NNUE files. Stockfish build scripts now handle this.
Optionally, NNUE files downloaded manually in the source directory will also be copied and treated as source files, so that fishnet can be built offline.