feat: add ANSI color output following GitHub CLI conventions #30
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Add colored terminal output to improve readability and user experience, following the GitHub CLI Primer color guidelines. - Add `internal/style` package using `mgutz/ansi` for ANSI colors - Respect `NO_COLOR`, `CLICOLOR`, and TTY detection - Apply semantic colors: green (success), red (errors), yellow (warnings), cyan (branches), magenta (merged), gray (muted), bold (headers) - Add icons: ✓ (success), ✗ (failure), ! (warning) - Update all cmd files and tree formatting with color support - Add `.claude/rules/colors.md` documenting the color scheme Co-authored-by: Cursor <cursoragent@cursor.com>
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Pull request overview
Adds a centralized terminal styling layer and applies it across command output to improve readability while respecting standard color/TTY conventions.
Changes:
- Introduces
internal/stylewith semantic styling helpers (success/error/warn/branch/merged/muted/bold) and ✓/✗/! icons. - Threads optional styling into tree formatting and updates most
cmd/*user-facing output to use the new style helpers. - Documents the color/icon scheme in
.claude/rules/colors.md.
Reviewed changes
Copilot reviewed 16 out of 16 changed files in this pull request and generated 3 comments.
Show a summary per file
| File | Description |
|---|---|
| internal/tree/tree.go | Adds optional *style.Style to FormatOptions and applies styling to branch display. |
| internal/style/style.go | New package implementing semantic color + icon helpers with NO_COLOR/TTY behavior. |
| cmd/unlink.go | Styles success output and branch name. |
| cmd/undo.go | Styles undo flow output (muted, bold, branch, warning icon). |
| cmd/sync.go | Styles warnings/success/dry-run output and threads style through helpers. |
| cmd/submit.go | Styles submit phases, PR operations output, warnings, and prompts. |
| cmd/orphan.go | Styles orphan success output and branch names. |
| cmd/log.go | Styles porcelain/table output and threads style into tree formatting. |
| cmd/link.go | Styles success output and branch name. |
| cmd/init.go | Styles init output and trunk display. |
| cmd/create.go | Styles create output and commit confirmation. |
| cmd/continue.go | Styles continue output and completion messages. |
| cmd/cascade.go | Styles cascade output, conflict output, and undo snapshot logging. |
| cmd/adopt.go | Styles adopt success output and branch/parent display. |
| cmd/abort.go | Styles abort warnings and completion output. |
| .claude/rules/colors.md | Adds documentation for the color/icon conventions and environment behavior. |
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- Pass style instance to saveUndoSnapshotByName instead of creating new one - Fix SuccessMessage newline placement in sync command - Remove undocumented ℹ icon from init command Co-authored-by: Cursor <cursoragent@cursor.com>
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Add colored terminal output to improve readability and user experience,
following the GitHub CLI Primer color guidelines.
internal/stylepackage usingmgutz/ansifor ANSI colorsNO_COLOR,CLICOLOR, and TTY detectioncyan (branches), magenta (merged), gray (muted), bold (headers)
.claude/rules/colors.mddocumenting the color scheme