nullkey
f2e8e3f56c
Survey of 10 mainstream CLIs (gh, lark, stripe, vercel, supabase, aws, azure, gcloud, openai/codex, github-copilot-cli) showed env-gated per-command --help blurbs are a Stripe-only pattern; gh uses env detect for telemetry only, and lark relies on installed agent Skills + MCP. Our cmd/mcp/serve already covers the dominant 2025/26 path, so internal/aiclient/ (136 LOC + 38 callsites) is net maintenance burden without precedent. - Drop internal/aiclient/ entirely (annotations + detect + tests) - Remove 38 SetAgentHelp callsites + agentAwareHelpFunc / SetHelpFunc wiring in cmd/root.go - Migrate 4 command-level rules to standard Long help (visible to all, not env-gated): doc upload mode mutex, kb edit at-least-one, kb pin idempotent, search chunks channel mutex - Rewrite AGENTS.md as a developer guide (gh-style 6 H2 / 167 lines): audience preamble + Build / Architecture / Command Structure / Testing / Code Style / Error Handling. Drops sections absent in surveyed projects (Commit & PR Conventions, Who Uses This CLI) - Clean 14 internal doc refs (ADR-N, spec §X, v0.X) in source comments and docs that pointed at docs/superpowers/ — that directory is local-only / uncommitted, so refs are dead for outside readers - Drop forward-looking "once v0.2 ships" from README
36 lines
764 B
Go
36 lines
764 B
Go
package text
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import "github.com/mattn/go-runewidth"
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const ellipsis = "…"
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// Truncate cuts s to at most maxWidth display columns (CJK / emoji occupy
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// 2 columns; ASCII 1), appending "…" if truncated. Display width, not rune count.
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//
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// Edge cases:
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//
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// maxWidth <= 0 -> ""
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// s already fits -> s returned unchanged
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// ellipsis is 1 column, so truncate budget = maxWidth - 1
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func Truncate(maxWidth int, s string) string {
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if maxWidth <= 0 {
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return ""
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}
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if runewidth.StringWidth(s) <= maxWidth {
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return s
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}
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if maxWidth == 1 {
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return ellipsis
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}
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budget := maxWidth - 1 // reserve for ellipsis
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w := 0
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for i, r := range s {
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rw := runewidth.RuneWidth(r)
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if w+rw > budget {
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return s[:i] + ellipsis
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}
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w += rw
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}
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return s + ellipsis
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}
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