feat: add flush method to output (#85)

README.md

@@ -25,6 +25,10 @@ const { log, output, input, time } = require('proc-log')
 
   This is for buffered output.  Consumers will typically buffer this until they are ready to display.
 
+* `output.flush(...args)` calls `process.emit('output', 'flush', ...args)`
+
+  This is to indicate that the output buffer should be flushed.
+
 * `output.LEVELS` an array of strings of all output method names
 
 #### log

lib/index.js

@@ -6,11 +6,13 @@ module.exports = {
       'standard',
       'error',
       'buffer',
+      'flush',
     ],
     KEYS: {
       standard: 'standard',
       error: 'error',
       buffer: 'buffer',
+      flush: 'flush',
     },
     standard: function (...args) {
       return process.emit('output', 'standard', ...args)
@@ -21,6 +23,9 @@ module.exports = {
     buffer: function (...args) {
       return process.emit('output', 'buffer', ...args)
     },
+    flush: function (...args) {
+      return process.emit('output', 'flush', ...args)
+    },
   },
   log: {
     LEVELS: [

tap-snapshots/test/index.js.test.cjs

@@ -55,6 +55,7 @@ exports[`test/index.js TAP output > output keys 1`] = `
 Object {
   "buffer": "buffer",
   "error": "error",
+  "flush": "flush",
   "standard": "standard",
 }
 `
@@ -64,6 +65,7 @@ Array [
   "standard",
   "error",
   "buffer",
+  "flush",
 ]
 `