stars/github__fioncat__otree: A command line tool to view objects (JSON/YAML/TOML/XML) in TUI tree widget.

June 5fda276e21 fix: check file size before reading to prevent OOM (#134 ) * fix: check file size before reading to prevent OOM The previous implementation read the entire file into memory before checking if it exceeded max_data_size. For very large files, this could cause out-of-memory errors before the size check could reject the file. This fix uses fs::metadata() to check the file size BEFORE reading its contents. This prevents OOM errors when users accidentally try to open multi-gigabyte files. For stdin input, the size check still happens after reading (since we can't know stdin size beforehand), but this is unavoidable. Changes: - Check file metadata.len() before fs::read() for file paths - Add integration test that verifies rejection of >30 MiB files - Improve error message to show both file size and limit The fix maintains backward compatibility - stdin behavior is unchanged, and the default 30 MiB limit remains the same. * fix: avoid u64-to-usize truncation in file size check Compare metadata.len() (u64) against max_data_size widened to u64 instead of narrowing the file size to usize, which would silently wrap on 32-bit targets and let oversized files through.	2026-05-16 23:58:01 +08:00
.github	build(deps): bump actions/checkout from 5 to 6 (#114 )	2025-12-23 10:37:17 +08:00
assets	docs: update screenshot	2024-06-28 10:20:36 +08:00
config	chore: add missing option in default config	2025-08-26 10:47:08 +08:00
docs	chore: release v0.6.5	2026-03-03 18:46:12 +08:00
examples	feat(parse): support hcl (#99 )	2025-08-26 15:15:23 +08:00
src	fix: check file size before reading to prevent OOM (#134 )	2026-05-16 23:58:01 +08:00
tests	fix: check file size before reading to prevent OOM (#134 )	2026-05-16 23:58:01 +08:00
.gitignore	fix: pin ratatui ecosystem deps to compatible versions	2026-04-13 18:39:35 +08:00
build.rs	feat(parse): support xml (#92 )	2025-08-25 10:29:20 +08:00
Cargo.lock	fix: check file size before reading to prevent OOM (#134 )	2026-05-16 23:58:01 +08:00
Cargo.toml	fix: check file size before reading to prevent OOM (#134 )	2026-05-16 23:58:01 +08:00
LICENSE	Initial commit	2024-05-11 18:39:35 +08:00
README.md	feat(ui): support highlighting filter keyword in tree (#94 )	2025-08-25 13:57:32 +08:00
typos.toml	feat(data): support wrap mode (#108 )	2025-10-15 17:56:24 +08:00

June 5fda276e21

fix: check file size before reading to prevent OOM (#134 )

* fix: check file size before reading to prevent OOM

The previous implementation read the entire file into memory before
checking if it exceeded max_data_size. For very large files, this
could cause out-of-memory errors before the size check could reject
the file.

This fix uses fs::metadata() to check the file size BEFORE reading
its contents. This prevents OOM errors when users accidentally try
to open multi-gigabyte files.

For stdin input, the size check still happens after reading (since
we can't know stdin size beforehand), but this is unavoidable.

Changes:
- Check file metadata.len() before fs::read() for file paths
- Add integration test that verifies rejection of >30 MiB files
- Improve error message to show both file size and limit

The fix maintains backward compatibility - stdin behavior is
unchanged, and the default 30 MiB limit remains the same.

* fix: avoid u64-to-usize truncation in file size check

Compare metadata.len() (u64) against max_data_size widened to u64
instead of narrowing the file size to usize, which would silently
wrap on 32-bit targets and let oversized files through.

README.md

OTree - Object Tree TUI Viewer

Install

Arch Linux (AUR)

macOS and Linux (Homebrew)

Usage

Roadmap

Thanks