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Fix index out of bounds crash for '@@ @@' hunk header#1995

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th1000s merged 1 commit into
dandavison:mainfrom
adamchainz:fix_index_out_of_bounds
May 2, 2025
Merged

Fix index out of bounds crash for '@@ @@' hunk header#1995
th1000s merged 1 commit into
dandavison:mainfrom
adamchainz:fix_index_out_of_bounds

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Fixes #1275.

@adamchainz adamchainz force-pushed the fix_index_out_of_bounds branch from e944822 to b4bca7d Compare April 29, 2025 09:33
Comment thread src/handlers/hunk_header.rs Outdated
Comment on lines +252 to +260
if line_numbers_and_hunk_lengths.len() == 0 {
None
} else {
let code_fragment = caps[2].to_string();
Some(ParsedHunkHeader {
code_fragment,
line_numbers_and_hunk_lengths,
})
}

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I'm a little unsure if this is the most idiomatic Rust!

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Well clippy got me to use is_empty(), but still I'm unsure on this if structure with all these implicit returns...

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This is fine, caps[2] was the original non-idiomatic line. Now at least it does not crash. Thanks!

@adamchainz adamchainz force-pushed the fix_index_out_of_bounds branch from b4bca7d to bb00799 Compare April 29, 2025 09:39
@th1000s th1000s merged commit cb610ec into dandavison:main May 2, 2025
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tmeijn pushed a commit to tmeijn/dotfiles that referenced this pull request Mar 26, 2026
This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [dandavison/delta](https://github.com/dandavison/delta) | minor | `0.18.2` → `0.19.1` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

---

### Release Notes

<details>
<summary>dandavison/delta (dandavison/delta)</summary>

### [`v0.19.1`](https://github.com/dandavison/delta/releases/tag/0.19.1)

[Compare Source](dandavison/delta@0.19.0...0.19.1)

This patch release fixes a release automation [bug](dandavison/delta#2127): release [0.19.0](https://github.com/dandavison/delta/releases/tag/0.19.0) did not include all release binaries.

#### What's Changed

- Fix CD: replace defunct ubuntu-20.04 runners by [@&#8203;dandavison](https://github.com/dandavison) in [#&#8203;2129](dandavison/delta#2129)

**Full Changelog**: <dandavison/delta@0.19.0...0.19.1>

### [`v0.19.0`](https://github.com/dandavison/delta/releases/tag/0.19.0)

[Compare Source](dandavison/delta@0.18.2...0.19.0)

Tons of improvements; thanks very much to all delta contributors.

**This release is missing several binaries due to a [bug in the GitHub Actions release workflow](dandavison/delta#2127). Please use <https://github.com/dandavison/delta/releases/tag/0.19.1> instead.**

#### What's Changed

- Do not double panic in FakeParentArgs::drop by [@&#8203;dvermd](https://github.com/dvermd) in [#&#8203;1856](dandavison/delta#1856)
- Improve blame file type detection ([#&#8203;1803](dandavison/delta#1803)) by [@&#8203;dvermd](https://github.com/dvermd) in [#&#8203;1829](dandavison/delta#1829)
- Use same example config in manual as README by [@&#8203;dandavison](https://github.com/dandavison) in [#&#8203;1879](dandavison/delta#1879)
- Clarify grep highlighter-related code by [@&#8203;dandavison](https://github.com/dandavison) in [#&#8203;1877](dandavison/delta#1877)
- Don't set colorMoved in introductory instructions by [@&#8203;dandavison](https://github.com/dandavison) in [#&#8203;1884](dandavison/delta#1884)
- Recommend zdiff3 merge.conflictStyle by [@&#8203;adamchainz](https://github.com/adamchainz) in [#&#8203;1260](dandavison/delta#1260)
- Add themes `weeping-willow`, `mirthful-willow` by [@&#8203;lvdh](https://github.com/lvdh) in [#&#8203;1864](dandavison/delta#1864)
- CI: switch to macos-13, as 12 will be unsupported soon by [@&#8203;th1000s](https://github.com/th1000s) in [#&#8203;1890](dandavison/delta#1890)
- Add optional capture-output writer to run\_app() by [@&#8203;th1000s](https://github.com/th1000s) in [#&#8203;1889](dandavison/delta#1889)
- Center-align README content by [@&#8203;dandavison](https://github.com/dandavison) in [#&#8203;1893](dandavison/delta#1893)
- Redundant Option Checks, Unwrap Safety by [@&#8203;sharma-shray](https://github.com/sharma-shray) in [#&#8203;1892](dandavison/delta#1892)
- Add console commands for git configuration by [@&#8203;harmtemolder](https://github.com/harmtemolder) in [#&#8203;1896](dandavison/delta#1896)
- Honor pager path when checking less version by [@&#8203;dandavison](https://github.com/dandavison) in [#&#8203;1903](dandavison/delta#1903)
- Rename some variables by [@&#8203;dandavison](https://github.com/dandavison) in [#&#8203;1904](dandavison/delta#1904)
- Delete now-unused pricate homebrew formula step from Makefile (III) by [@&#8203;dvermd](https://github.com/dvermd) in [#&#8203;1830](dandavison/delta#1830)
- Support {host} in hyperlinks by [@&#8203;dandavison](https://github.com/dandavison) in [#&#8203;1901](dandavison/delta#1901)
- Allow multiple hyperlinks per line by [@&#8203;th1000s](https://github.com/th1000s) in [#&#8203;1909](dandavison/delta#1909)
- Clippy 1.83 by [@&#8203;th1000s](https://github.com/th1000s) in [#&#8203;1918](dandavison/delta#1918)
- Support external subcommands: rg, diff, git-show (etc.) by [@&#8203;th1000s](https://github.com/th1000s) in [#&#8203;1769](dandavison/delta#1769)
- Don't keep subcommand stdout around by [@&#8203;th1000s](https://github.com/th1000s) in [#&#8203;1920](dandavison/delta#1920)
- hyperlink commit hashes of length 7 as well by [@&#8203;th1000s](https://github.com/th1000s) in [#&#8203;1924](dandavison/delta#1924)
- clippy 1.84 fix by [@&#8203;th1000s](https://github.com/th1000s) in [#&#8203;1938](dandavison/delta#1938)
- chore(deps): update git2 to use libgit2 1.9 by [@&#8203;chenrui333](https://github.com/chenrui333) in [#&#8203;1930](dandavison/delta#1930)
- Suggest minimum bat version in manual by [@&#8203;ernstki](https://github.com/ernstki) in [#&#8203;1941](dandavison/delta#1941)
- Upgrade unicode-width to v0.1.14 (but still < 0.2.0) by [@&#8203;th1000s](https://github.com/th1000s) in [#&#8203;1937](dandavison/delta#1937)
- Update terminal-colorsaurus version to 0.4.8 by [@&#8203;rashil2000](https://github.com/rashil2000) in [#&#8203;1936](dandavison/delta#1936)
- Fix index out of bounds crash for '@&#8203;@&#8203;  @&#8203;@&#8203;' hunk header by [@&#8203;adamchainz](https://github.com/adamchainz) in [#&#8203;1995](dandavison/delta#1995)
- Tune themes weeping-willow, mirthful-willow by [@&#8203;lvdh](https://github.com/lvdh) in [#&#8203;2011](dandavison/delta#2011)
- clippy 1.88 fixes by [@&#8203;injust](https://github.com/injust) in [#&#8203;2016](dandavison/delta#2016)
- Fix diff output when a diff ends with a mode change by [@&#8203;th1000s](https://github.com/th1000s) in [#&#8203;2023](dandavison/delta#2023)
- fix: `cargo install git-delta --locked` fails on systems with GCC 15 by [@&#8203;tquin](https://github.com/tquin) in [#&#8203;2007](dandavison/delta#2007)
- Normalize `merge.conflictStyle` casing by [@&#8203;injust](https://github.com/injust) in [#&#8203;2015](dandavison/delta#2015)
- Styled zero lines fix by [@&#8203;th1000s](https://github.com/th1000s) in [#&#8203;1916](dandavison/delta#1916)
- config: add setup instructions for Jujutsu (jj) vcs by [@&#8203;arjunmahishi](https://github.com/arjunmahishi) in [#&#8203;2048](dandavison/delta#2048)
- all: fix clippy complaints by [@&#8203;charlievieth](https://github.com/charlievieth) in [#&#8203;2038](dandavison/delta#2038)
- Cache the Git remote URL to speed up rendering hyperlinks by [@&#8203;charlievieth](https://github.com/charlievieth) in [#&#8203;1940](dandavison/delta#1940)
- deps: update cc by [@&#8203;ognevny](https://github.com/ognevny) in [#&#8203;2053](dandavison/delta#2053)
- rg json handling: fix line comment highlighting by [@&#8203;th1000s](https://github.com/th1000s) in [#&#8203;2057](dandavison/delta#2057)
- Update dirs dependency to version 6 by [@&#8203;musicinmybrain](https://github.com/musicinmybrain) in [#&#8203;2063](dandavison/delta#2063)
- default line number to 1 for hyperlinks by [@&#8203;schpet](https://github.com/schpet) in [#&#8203;2061](dandavison/delta#2061)
- Fix line numbers showing filename when hyperlinks enabled by [@&#8203;tsvikas](https://github.com/tsvikas) in [#&#8203;2058](dandavison/delta#2058)
- less hist file: look at xdg paths by [@&#8203;th1000s](https://github.com/th1000s) in [#&#8203;2065](dandavison/delta#2065)
- CI: remove x86 apple/macOS by [@&#8203;th1000s](https://github.com/th1000s) in [#&#8203;2074](dandavison/delta#2074)
- Update bat dependency from 0.24 to 0.26 by [@&#8203;dandavison](https://github.com/dandavison) in [#&#8203;2115](dandavison/delta#2115)

#### New Contributors

- [@&#8203;dvermd](https://github.com/dvermd) made their first contribution in [#&#8203;1856](dandavison/delta#1856)
- [@&#8203;lvdh](https://github.com/lvdh) made their first contribution in [#&#8203;1864](dandavison/delta#1864)
- [@&#8203;sharma-shray](https://github.com/sharma-shray) made their first contribution in [#&#8203;1892](dandavison/delta#1892)
- [@&#8203;harmtemolder](https://github.com/harmtemolder) made their first contribution in [#&#8203;1896](dandavison/delta#1896)
- [@&#8203;ernstki](https://github.com/ernstki) made their first contribution in [#&#8203;1941](dandavison/delta#1941)
- [@&#8203;tquin](https://github.com/tquin) made their first contribution in [#&#8203;2007](dandavison/delta#2007)
- [@&#8203;arjunmahishi](https://github.com/arjunmahishi) made their first contribution in [#&#8203;2048](dandavison/delta#2048)
- [@&#8203;charlievieth](https://github.com/charlievieth) made their first contribution in [#&#8203;2038](dandavison/delta#2038)
- [@&#8203;ognevny](https://github.com/ognevny) made their first contribution in [#&#8203;2053](dandavison/delta#2053)
- [@&#8203;musicinmybrain](https://github.com/musicinmybrain) made their first contribution in [#&#8203;2063](dandavison/delta#2063)
- [@&#8203;schpet](https://github.com/schpet) made their first contribution in [#&#8203;2061](dandavison/delta#2061)
- [@&#8203;tsvikas](https://github.com/tsvikas) made their first contribution in [#&#8203;2058](dandavison/delta#2058)

**Full Changelog**: <dandavison/delta@0.18.2...0.19.0>

</details>

---

### Configuration

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---

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---

This MR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
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🐛 index out of bounds crash with malformed patch

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