[PR #266] Migrate to imara diff #363

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opened 2026-03-02 04:13:25 +03:00 by kerem · 0 comments

kerem commented

2026-03-02 04:13:25 +03:00

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Original Pull Request: https://github.com/git-ai-project/git-ai/pull/266

State: closed
Merged: Yes

While similar diffs were often close to git diffs, we were seeing enough gaps in compatibility that we felt it made sense to migrate to a diffing library that is focused on git compat. Researching several options, including statically linking in git's actual xdiff library, we decided to go with imara-diff. It's the same diff library that the Rust gitoxide library uses internally. It is also substantially more memory-efficient and performant than similar.

To reduce the overall dependency footprint, we also migrated all diff use cases in the codebase to the new imara-diff library and removed diff-match-patch-rs and similar entirely.

**Original Pull Request:** https://github.com/git-ai-project/git-ai/pull/266 **State:** closed **Merged:** Yes --- While `similar` diffs were often close to git diffs, we were seeing enough gaps in compatibility that we felt it made sense to migrate to a diffing library that is focused on git compat. Researching several options, including statically linking in git's actual xdiff library, we decided to go with [imara-diff](https://github.com/pascalkuthe/imara-diff). It's the same diff library that the Rust gitoxide library uses internally. It is also substantially more memory-efficient and performant than `similar`. To reduce the overall dependency footprint, we also migrated all diff use cases in the codebase to the new `imara-diff` library and removed `diff-match-patch-rs` and `similar` entirely.