Files
Enterprise-Knowledge-Base/cli/internal/format/envelope.go
T
nullkey a39805aa89 feat(cli): scaffold weknora CLI module foundation (PR-1)
Empty cli/ Go module with Factory + Options skeleton that all v0.x commands
plug into.

Foundation packages (10 internal/):
- cmdutil: Factory(3 closure: Config/Client/Prompter) + Options + Errors
  with namespaced ErrorCode + typed predicates (IsAuthError / IsNotFound /
  IsTransient / IsAuthExpired) + Exporter + AddJSONFlags + ExitCode/PrintError
- iostreams: package singleton with TTY detection; ColorEnabled honors
  NO_COLOR / TERM=dumb on demand
- agent: mode + detect + annotations (Stripe pkg/useragent pattern;
  CLAUDECODE / CURSOR_AGENT / CODEX_* / AIDER_* / CONTINUE_* /
  OPENCODE_* / GEMINICODER env detection)
- build: ldflags-injected version/commit/date
- safepaths: separator-aware path-traversal protection
- config: yaml.v3 schema + atomic save 0600 (XDG-style)
- format: success/failure envelope (code/hint/request_id/risk/retryable/
  console_url) with typed RiskLevel
- prompt: Prompter interface + AgentPrompter (rejects in agent mode)
- secrets: file 0600 store with weknora:<context>:<key> namespace
- testutil: XDGTempDir(t) test helper

Smoke command: weknora version (-/--json). Build/test/vet matrix in
.github/workflows/cli.yml across linux x macos x windows x Go 1.24.

Factory.Client returns CodeLocalUnimplemented until PR-3 wires the SDK
adapter; PR-1 commands (version) don't need it.
2026-05-07 23:19:46 +08:00

74 lines
2.5 KiB
Go

// Package format renders command output: JSON envelope, jq, template, table.
//
// Non-TTY default = JSON envelope (ADR-5). Envelope schema is the contract
// shared with `weknora mcp serve` tools and external agents.
package format
import (
"encoding/json"
"io"
)
// Envelope is the canonical success/failure shape returned by every command.
type Envelope struct {
OK bool `json:"ok"`
Data any `json:"data,omitempty"`
Error *ErrorBody `json:"error,omitempty"`
Meta *Meta `json:"_meta,omitempty"`
}
// Meta carries non-payload context fields useful to agents and observability.
type Meta struct {
Context string `json:"context,omitempty"`
TenantID uint64 `json:"tenant_id,omitempty"`
KBID string `json:"kb_id,omitempty"`
RequestID string `json:"request_id,omitempty"`
NextCursor string `json:"next_cursor,omitempty"`
HasMore bool `json:"has_more,omitempty"`
Warnings []string `json:"warnings,omitempty"`
AppliedFilters []string `json:"applied_filters,omitempty"`
}
// RiskLevel classifies an error by the kind of operation that produced it.
// Agents use this to decide whether to retry, escalate, or stop.
type RiskLevel string
const (
RiskRead RiskLevel = "read"
RiskMutating RiskLevel = "mutating"
RiskDestructive RiskLevel = "destructive"
)
// ErrorBody is the failure shape. `code` is a stable namespaced ID (e.g.
// "auth.unauthenticated"); `hint` is an actionable next step; `risk` flags
// destructive intent for agent self-governance.
type ErrorBody struct {
Code string `json:"code"`
Message string `json:"message"`
Hint string `json:"hint,omitempty"`
RequestID string `json:"request_id,omitempty"`
Context string `json:"context,omitempty"`
Risk RiskLevel `json:"risk,omitempty"`
Retryable bool `json:"retryable,omitempty"`
ConsoleURL string `json:"console_url,omitempty"`
Details map[string]any `json:"details,omitempty"`
}
// WriteEnvelope serializes env as one-line JSON to w. Used for non-TTY output
// and for `--format json` / `--agent` modes.
func WriteEnvelope(w io.Writer, env Envelope) error {
enc := json.NewEncoder(w)
enc.SetEscapeHTML(false)
return enc.Encode(env)
}
// Success constructs a success envelope.
func Success(data any, meta *Meta) Envelope {
return Envelope{OK: true, Data: data, Meta: meta}
}
// Failure constructs a failure envelope.
func Failure(err *ErrorBody) Envelope {
return Envelope{OK: false, Error: err}
}