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LatestJune 05, 202610 min read

Better diff rendering in coco, courtesy of tree-sitter

The regex-based structural diff extractors landed and worked – then hit a ceiling regex was never going to clear. Here’s how coco’s diff pipeline actually moved onto tree-sitter: sharper structural context for commit messages, a layered regex fallback, lazy-loaded grammars – plus the bonus the same parser bought us, syntax-highlighted diffs in the Workstation.

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May 29, 20269 min read

git-scenarios hits 1.0: what stable actually took

git-scenarios came together fast because the project it serves, Coco’s TUI git workstation, had very clear testing needs. A couple of weeks after the v0.1.0 extraction it’s now stable at v1.0.0: 32 scenarios, 60+ atoms, five framework adapters, 527 tests across three operating systems. The v1 work wasn’t about features, it was about trust: typed error classes, precondition guards, property-tested determinism, cross-platform CI, and shedding the last of its coco branding.

May 24, 202612 min read

git-scenarios: real git repos in any state, composable from atoms

I have written the same 80 lines of git test setup more times than I want to count. @gfargo/git-scenarios v0.5.0 extracts the helper layer that grew up inside Coco: a registry of named scenarios (mid-merge-conflict, submodule-with-history, mid-bisect, and 8 more), a composable atom API for building your own, and a tool-agnostic CLI that drops any tool into a real repo in a known state.

Featured image for ink-enhanced-select-input 1.0: headless hook, multi-select, search, and groups

May 08, 20269 min read

ink-enhanced-select-input 1.0: headless hook, multi-select, search, and groups

A look at everything that’s landed in ink-enhanced-select-input on the road to 1.0: a headless hook for custom renderers, multi-select mode, inline search, item groups, scroll indicators, Escape/cancel support, and 133 tests – including a real bug caught by writing edge-case tests for backspace handling in searchable mode.