feat(cli): colorize sync timeline lanes per unit#27164
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Give each unit in `coder exp sync timeline` its own color, cycled from a fixed palette by lane index (git-log style). The lane glyphs (*, |, \, /) and the unit name in each row are drawn in the lane's color, making it easier to follow a unit across the graph. Color is resolved via cliui.Color, which returns a colorless profile in tests and on non-TTY output, so golden files are unaffected and no gating is required. Generated by Coder Agents on behalf of @SasSwart.
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Summary
Retrofits the per-unit color idea from
coder exp sync graphontocoder exp sync timeline. Each unit (lane) now gets its own color, cycled from a fixed palette by lane index (git-log style):*,|,\,/) are drawn in their lane's color.This makes it much easier to follow a single unit across the timeline graph.
Stacked on top of #27162 (the graph command).
Golden stability
Color is resolved via
cliui.Color, which returns a colorless profile in tests and on non-TTY output. The existing timeline golden files are therefore unchanged, and no output gating is required. Color renders only on an interactive terminal.Testing
go build ./cli/...go test ./cli -run 'TestSyncCommands_Golden/timeline'(goldens unchanged, confirming colorless-in-test)make lint/emdash, gofmt cleanNote on placement
The timeline command itself lives further down the stack (#27150). To avoid rebasing the entire stack, this enhancement is stacked on top of the current tip as its own small PR. It can instead be folded into #27150 if a single cohesive timeline PR is preferred, at the cost of a stack rebase.
Generated by Coder Agents on behalf of @SasSwart.