feat(ui): make history automatically responsive

[benvinegar]

Stack

• Depends on refactor(ui): share desktop chrome with history #983, which depends on feat: add static-first history browsing #979
• GitHub stack: #984
• Approved responsive mock: https://sideshow.sh/p/eAsZCIw7mf4

Problem

The history stack still exposed static and interactive modes as separate user experiences, and its interactive rows used a conventional left-to-right terminal-log layout. Users should be able to type hunk log once and get the right experience for their environment, with information density that responds automatically to available space.

Approach

• make plain hunk log open the interactive desktop history browser when stdin and stdout are terminals
• preserve automatic complete static output for pipes and redirection
• add --static to force static output on a terminal, paging only when needed
• retain hidden --interactive parsing as a compatibility alias without documenting a second workflow
• replace interactive medium/compact controls with one width-driven responsive projection
• use a GitHub-inspired hierarchy: title, description, author/date/decorations on the left; commit ID and secondary merge state aligned right
• progressively remove description, date, and secondary state as width contracts
• reserve the right-side ID and a minimum title budget even for adversarial multi-lane graphs
• preserve display-cell-correct clickable IDs, themes, Git/Jujutsu providers, bounded loading, menus, and review-return state

Static --oneline and --format remain available because they control shell output rather than creating competing interactive applications.

Validation

• full test suite: 2,186 passed, 9 skipped
• log PTY integration: 6 passed
• bun run typecheck
• bun run lint
• bun run check:docs
• bun run deps:check
• changed-file formatting and git diff --check
• independent review of the implementation and follow-up fixes
• manual tmux validation at 100×24 and 45×18
• manually verified automatic TTY launch, responsive resize, and forced static output

Tested on Linux with Git, tmux, and a real TTY. Windows was not tested directly.

Visual evidence

The approved responsive design is available at https://sideshow.sh/p/eAsZCIw7mf4. Real-terminal media can be added while this PR remains draft.

Non-goals

• no repository mutation actions
• no alternate interactive density modes
• no changes to provider-owned history or review semantics
• no removal of static formatting controls used by pipes and scripts

This PR description was generated by Pi using GPT-5.6-sol

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1 Skipped Deployment

Project	Deployment	Actions	Updated
hunk-web	Ignored	Preview	Sep 6, 2026 1:00am UTC

[greptile-apps]

Greptile Summary

This PR makes hunk log automatically choose an interactive responsive history browser when both standard streams are terminals, while retaining complete static output for pipes, redirection, and --static.

• Adds width-driven wide, medium, and narrow history-row projections.
• Right-aligns commit identifiers and provides separate mouse actions for opening and copying.
• Removes interactive density controls while preserving graph and metadata visibility controls.
• Updates CLI parsing, startup selection, documentation, and unit/PTY coverage for the new behavior.

Confidence Score: 5/5

The PR appears safe to merge with no actionable correctness, security, or repository-rule violations identified.

The CLI-selection contract, responsive projection, navigation semantics, and mouse interactions are internally consistent and covered by focused unit and PTY integration tests.

Important Files Changed

Filename	Overview
src/app/cli.ts	Adds --static, retains hidden parsing compatibility for --interactive, and updates history command help.
src/app/startup.ts	Selects interactive history only when static output is not forced and both standard streams are terminals.
src/ui/log/responsiveLayout.ts	Introduces display-cell-aware responsive density and row projection logic.
src/ui/log/LogApp.tsx	Renders responsive multi-line rows with right-aligned open and copy actions.
test/pty/log-integration.test.ts	Covers automatic TTY launch, responsive resizing, clickable IDs, copy actions, and forced static output.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
  A[hunk log invocation] --> B{--static?}
  B -->|Yes| E[Static history output]
  B -->|No| C{stdin and stdout are TTYs?}
  C -->|No| E
  C -->|Yes| D[Interactive history browser]
  D --> F{Terminal width}
  F -->|96+ columns| G[Wide rows]
  F -->|60–95 columns| H[Medium rows]
  F -->|Below 60 columns| I[Narrow rows]
  D --> J[Open selected commit]
  J --> K[Hunk review]
  K --> D

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_{Reviews (1): Last reviewed commit: "style(ui): space history entries" | Re-trigger Greptile}