Using Prometheus as a Library

Prometheus can be required directly from Lua.

In this repository

local Prometheus = require("src.prometheus")

local code = 'print("Hello")'
local pipeline = Prometheus.Pipeline:fromConfig(Prometheus.Presets.Medium)
local out = pipeline:apply(code, "inline-source.lua")
print(out)

Integration in another project

Copy the src/ tree and make sure require can resolve src.prometheus (or adapt your package.path to where prometheus.lua is located).

Useful runtime controls

Disable noisy logs:

Prometheus.Logger.logLevel = Prometheus.Logger.LogLevel.Error

Enable syntax highlighting in unparser output:

local pipeline = Prometheus.Pipeline:new({
  LuaVersion = "Lua51",
  PrettyPrint = false,
  Highlight = true,
})

Notes

• pipeline:apply expects source code text.
• If apply is called with no filename, logs use Anonymous Script.