installmeta

Documentation

Overview

Package installmeta persists install-time metadata to ~/.nself/install-meta.json.

The install source (NSELF_INSTALL_REF env var) is captured at install time by install.sh and persisted here. The value is sanitized to prevent injection.

Schema (v1):

{
  "install_source": "hn",       // sanitized ref from ?ref= query param or NSELF_INSTALL_REF env
  "install_date":  "2026-04-20T10:00:00Z",
  "cli_version":   "1.0.9",
  "schema_version": 1,
  "_p95_note": "install_source included in ping_api telemetry from v1.1.0 (S54-T05)"
}

P95 integration point: the telemetry package reads InstallSource() and sends it in the ping_api telemetry payload as "install_source" (S54-T05, v1.1.0).

S57-T11 — 2026-04-20

Index

• func InstallSource() string
• func SanitizeRef(raw string) string
• func Write(rawRef string) error
• type Meta
  • func Read() (Meta, error)

Functions

func InstallSource

func InstallSource() string

InstallSource returns the sanitized install source string, or "unknown" if not set. Safe to call at any time — never errors.

func SanitizeRef

func SanitizeRef(raw string) string

SanitizeRef strips disallowed characters and caps length. Input: raw ref from NSELF_INSTALL_REF or ?ref= query param. Output: safe ASCII string suitable for JSON and logging.

func Write

func Write(rawRef string) error

Write creates or overwrites ~/.nself/install-meta.json with the given ref. The nself home directory is created if it does not exist.

Types

type Meta

type Meta struct {
	InstallSource string `json:"install_source"`
	InstallDate   string `json:"install_date"`
	CLIVersion    string `json:"cli_version"`
	SchemaVersion int    `json:"schema_version"`
	P95Note       string `json:"_p95_note"`
}

Meta holds install-time metadata.

func Read

func Read() (Meta, error)

Read reads the current install-meta.json. Returns zero Meta if the file does not exist.