WiP: feat(log): new extremely versbose level trace

@xen-orchestra/log/.USAGE.md

@@ -7,6 +7,7 @@ import { createLogger } from '@xen-orchestra/log'
 
 const log = createLogger('my-module')
 
+log.trace('extremely verbose log')
 log.debug('only useful for debugging')
 log.info('this information is relevant to the user')
 log.warn('something went wrong but did not prevent current action')

@xen-orchestra/log/README.md

@@ -25,6 +25,7 @@ import { createLogger } from '@xen-orchestra/log'
 
 const log = createLogger('my-module')
 
+log.trace('extremely verbose log')
 log.debug('only useful for debugging')
 log.info('this information is relevant to the user')
 log.warn('something went wrong but did not prevent current action')

@xen-orchestra/log/_createTransport.js

@@ -1,6 +1,6 @@
 'use strict'
 
-const { resolve } = require('./levels.js')
+const { LEVELS, resolve } = require('./levels.js')
 const compileGlobPattern = require('./_compileGlobPattern.js')
 
 function compileFilter(filter) {
@@ -14,7 +14,7 @@ function compileFilter(filter) {
   }
   if (type === 'string') {
     const re = compileGlobPattern(filter)
-    return log => re.test(log.namespace)
+    return log => log.level >= LEVELS.DEBUG && re.test(log.namespace)
   }
 
   if (Array.isArray(filter)) {

@xen-orchestra/log/index.js

@@ -19,7 +19,7 @@ if (!(symbol in global)) {
   const level = resolve(env.LOG_LEVEL, LEVELS.WARN)
 
   global[symbol] = function conditionalTransport(log) {
-    if (log.level >= level || matchDebug(log.namespace)) {
+    if (log.level >= level || (log.level >= LEVELS.DEBUG && matchDebug(log.namespace))) {
       transport(log)
     }
   }

@xen-orchestra/log/levels.js

@@ -9,6 +9,7 @@ LEVELS.ERROR = 50 // fatal for current action
 LEVELS.WARN = 40 // something went wrong but it's not fatal
 LEVELS.INFO = 30 // detail on unusual but normal operation
 LEVELS.DEBUG = 20
+LEVELS.TRACE = 10 // extremely verbose logs
 
 const NAMES = Object.create(null)
 exports.NAMES = NAMES

@xen-orchestra/log/transports/console.js

@@ -2,7 +2,7 @@
 
 const { LEVELS, NAMES } = require('../levels')
 
-const { DEBUG, ERROR, FATAL, INFO, WARN } = LEVELS
+const { DEBUG, ERROR, FATAL, INFO, TRACE, WARN } = LEVELS
 
 let formatLevel, formatNamespace
 if (process.stdout !== undefined && process.stdout.isTTY && process.stderr !== undefined && process.stderr.isTTY) {
@@ -13,6 +13,7 @@ if (process.stdout !== undefined && process.stdout.isTTY && process.stderr !== u
     [ERROR]: '1;31',
     [FATAL]: '1;31',
     [INFO]: '1',
+    [TRACE]: '2',
     [WARN]: '1;33',
   }
   formatLevel = level => {