Source file env_vars.ml

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open! Core
open Async

(* Points to a filesystem path will a copy of Perfetto. If provided, magic-trace will
   automatically start a local HTTP server for you to view the trace. You can use this
   "hidden" feature to serve a local copy of Perfetto if you don't want to copy trace
   files around. *)
let perfetto_dir = Unix.getenv "MAGIC_TRACE_PERFETTO_DIR"

(* Whether [perf] should be considered privileged when running as not-root. Bypasses error
   checks around kernel tracing when not root. *)
let perf_is_privileged = Option.is_some (Unix.getenv "MAGIC_TRACE_PERF_IS_PRIVILEGED")

(* Turns on hidden command line options and attached "[inferred start time]" to functions
   with inferred start times.

   This helps magic-trace developers debug magic-trace, it's not generally useful. *)
let debug = Option.is_some (Unix.getenv "MAGIC_TRACE_DEBUG")