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# Objective Opening a file laods it twice. `decode_file_text` builds the whole file as a `String`, and that `String` stays alive alongside the finished rope while `text::Buffer::new` copies it in. The `Vec` behind it grows by doubling, so it also commits up to nearly the file's size again in capacity it never uses. Partially addresses #27283. ## Solution Add `decode_file_text_to_rope`, which streams the file in 1 MB blocks straight into a `Rope`, validating UTF-8 and normalizing line endings as it goes. The file is never fully held as a `String`. `LoadedFile::text` becomes a `Rope` carrying the `LineEnding` detected before normalizing, so `buffer_store` calls `Buffer::new_normalized`. ## Testing On a 729 MB SQL dump, peak memory fell 25% and CPU fell around 28%. tested on 5950x, win11. Release Notes: - Improved memory use when opening large files, reducing peak memory during load by roughly the size of the file itself. |
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| Cargo.toml | ||
| LICENSE-GPL | ||