Moved so single main environment variable UCI_ENV
now checks for development and production. Production will write a file to default location if none given Example can be run in numerous ways from npm scripts add readme.md documenatation. need to add mocha testsmaster
David Kebler
parent
88c5886a58
commit
893f88b20d
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@ -1,19 +1,44 @@
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import logger from '../src/logger'
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let log = {}
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class LOGTEST {
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class LogTest {
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constructor(opts) {
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log = logger({
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name: 'test',
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id: opts.id,
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file: 'example/example.js',
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class: 'LOGTEST'
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// pretty: {translateTime:true, colorize:true, levelFirst:true } // options for pino pretty printer
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// env:'', // 'dev' or 'pro' -- can be use to set/override UCI_ENV environment variable
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// enForce: false, // only used with .evn. if true will override UCI_ENV if it is set, otherwise no
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// level:'info', // info is default level, set level to lowest visible
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// clear: false, // true for log files will clear the current log file on restart
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// logFileName:'test', // if not supplied log filename will be generated from timestamp
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// below properties are optional and are passed to child logger instance and will be part of json log entry
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// libraryName: 'UCI', // will be logged as name: can be used to identify logs of related packages, can be set via UCI_LOG_NAME env variable
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appName:'uci-example-logger', //will be used for logging directory name if supplied and will be logged as well
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package: '@uci/logger', // name of package with scope per package.json
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// repo: // will use scope-name from package prop if not supplied
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id: opts.id, // can pass a unique if for easy later search/filtering
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// file: 'example/example.js', // path (to repo root) of actual file running this logger, default is ./src/<package without scope>.js
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class: 'LogTest', // The class that created this logger if any
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// one can pass through additional props to log for every log
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// should not use any keys above or
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// level,time,msg,pid,hostname
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// logPath,instanceCreatedHR,instanceCreated as keys will be merged
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// NOTE: more props can be added at run time by passing an object of props
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additional: {anotherprop:'test'} // should do not use any keys above or 'level,logPath,package,instanceCreatedHR,instanceCreated' as keys will be merged
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})
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}
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logit() {
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log.trace('this is a trace level logged message')
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log.debug('this is a debug level logged message')
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log.info({runtimeprop:'somevalue', msg:'this is a info level logged message'})
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log.warn('this is a warn level logged message')
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log.error('this is a error level logged message')
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log.fatal('this is a fatal level logged message')
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log.clear('This would clear the log')
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}
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}
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let test = new LOGTEST({id:'process-test1'})
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let test = new LogTest({id:'logtest-via-new'})
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log.info({test:'filter', msg:'this is a logged message'})
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log.fatal('this is a fatal logged message')
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test.logit()
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21
package.json
21
package.json
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@ -4,13 +4,16 @@
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"description": "Parent Logger for all UCI modules",
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"main": "src/logger",
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"scripts": {
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"testw": "mocha -r esm test/*.test.mjs --watch --recurse --watch-extensions mjs",
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"test": "mocha -r esm test/*.test.mjs",
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"testd": "./node_modules/.bin/nodemon --exec './node_modules/.bin/mocha -r esm --timeout 30000'",
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"test": "./node_modules/.bin/mocha -r esm --timeout 30000 || exit 0",
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"testci": "istanbul cover ./node_modules/.bin/_mocha --report lcovonly -- -R spec --recursive && codecov || true",
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"example": "node -r esm example/example",
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"dev": "UCI_DEV=true ./node_modules/.bin/nodemon -r esm example/example",
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"log": "UCI_LOG=true ./node_modules/.bin/nodemon -r esm example/example",
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"pro": "UCI_PROD=./test/logs/uci.log node -r esm example/example"
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"none": "node -r esm example/example",
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"dev": "UCI_ENV=dev ./node_modules/.bin/nodemon -r esm example/example",
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"dev:info": "UCI_ENV=dev UCI_LOG_SEARCH='level==`30`' ./node_modules/.bin/nodemon -r esm example/example",
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"dev:fatal": "UCI_ENV=dev UCI_LOG_SEARCH='level==`60`' ./node_modules/.bin/nodemon -r esm example/example",
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"json": "UCI_ENV=dev UCI_LOG_JSON=true ./node_modules/.bin/nodemon -r esm example/example",
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"pro": "UCI_ENV='pro' node -r esm example/example",
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"pro:alt": "UCI_ENV='pro' UCI_LOG_PATH=./example/example.log node -r esm example/example"
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},
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"author": "David Kebler",
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"license": "MIT",
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@ -28,16 +31,18 @@
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},
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"homepage": "https://github.com/uCOMmandIt/uci-changeme#readme",
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"dependencies": {
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"env-paths": "^2.0.0",
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"make-dir": "^1.3.0",
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"pino": "^5.11.1",
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"pino-pretty": "^2.5.0"
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},
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"devDependencies": {
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"chai": "^4.2.0",
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"chai-as-promised": "^7.1.1",
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"codecov": "^3.1.0",
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"esm": "^3.1.2",
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"istanbul": "^0.4.5",
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"mocha": "^5.2.0",
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"nodemon": "^1.18.9"
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"nodemon": "^1.18.9",
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"test-console": "^1.1.0"
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}
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}
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88
readme.md
88
readme.md
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@ -1,17 +1,87 @@
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# uCOMmandIt JSON Logger
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`# uCOMmandIt JSON Logger
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runtime module logger based on pino
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### json logger based on pino.
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run example as either
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## How to by Example
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`npm run log`
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for json logging
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see [example](./example/example.js) for explanation of options and use in a es6 class allowing logging in any method of the class
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or for pretty output `npm run dev`
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```javascript
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// pretty: {translateTime:true, colorize:true, levelFirst:true } // options for pino pretty printer
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// env:'', // 'dev' or 'pro' -- can be use to set/override UCI_ENV environment variable
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// enForce: false, // only used with .evn. if true will override UCI_ENV if it is set, otherwise no
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// level:'info', // info is default level, set level to lowest visible
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// clear: false, // true for log files will clear the current log file on restart
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// logFileName:'test', // if not supplied log filename will be generated from timestamp
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// below properties are optional and are passed to child logger instance and will be part of json log entry
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// libraryName: 'UCI', // will be logged as name: can be used to identify logs of related packages, can be set via UCI_LOG_NAME env variable
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appName:'uci-example-logger', //will be used for logging directory name if supplied and will be logged as well
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package: '@uci/logger', // name of package with scope per package.json
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// repo: // will use scope-name from package prop if not supplied
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id: opts.id, // can pass a unique if for easy later search/filtering
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// file: 'example/example.js', // path (to repo root) of actual file running this logger, default is ./src/<package without scope>.js
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class: 'LogTest', // The class that created this logger if any
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// one can pass through additional props to log for every log
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// should not use any keys above or
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// level,time,msg,pid,hostname
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// logPath,instanceCreatedHR,instanceCreated as keys will be merged
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// NOTE: more props can be added at run time by passing an object of props
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additional: {anotherprop:'test'} // should do not use any keys above or 'level,logPath,package,instanceCreatedHR,instanceCreated' as keys will be merged
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```
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to run the example clone reop and then `npm install` from root
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then
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`npm run [script]`
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available scripts for example file
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- `none`: no logs to console or file
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- `dev`: all levels pretty printed to console/stdout
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- `dev:info`: show/filter only level 30 (info) logs pretty printed to console
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- `dev:fatal`: show/filer only level 60 (fatal) logs pretty printed to console
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- `json`: log to console but as raw json
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- `pro`: log to a file in the userspace default log directory location
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- `pro:alt`: log to a supplied/alternate file (path) location in this case `./example/example.log`
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## Environment Variables
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- `UCI_ENV='dev'|'pro'|'node'`, `dev` outputs to console, `pro` outputs to file, `node` will follow whatever `NODE_ENV` is set to.
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- `UCI_LOG_PATH=<some file path>` force logging to go to some particular file, also setable via options, see above
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- `UCI_LOG_JSON=true` will not pretty output to console but rather as raw json. Useful for piping to a json log processor such as pino-colada
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- `UCI_LOG_PRETTY`={} the pretty option for pino pretty, also setable via options, see above
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- `UCI_LOG_SEARCH='key == `\``value`\``'` will filter pretty/dev logs. _note:_ ALL search values regardless of type MUST be escaped with ``
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## Usage
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standalone (not in a class constructor as in example)
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lilke this.
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import logger from '../src/logger'
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opts = {} // see above
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let log = logger(opts)
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once you have created a Logger as a `global` in your module you can log per http://getpino.io/#/docs/api?id=logger
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like so
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```javascript
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log.trace('this is a trace level logged message')
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log.debug('this is a debug level logged message')
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log.info({runtimeprop:'somevalue', msg:'this is a info level logged message'})
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log.warn('this is a warn level logged message')
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log.error('this is a error level logged message')
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log.fatal('this is a fatal level logged message')
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```
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for search/filter use environment variable
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you can change visible levels on the fly http://getpino.io/#/docs/api?id=level
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`UCI_LOG_SEARCH='key == `\`value\``' npm run dev`
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like so
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note: ALL search values regardless of type MUST be escaped with ``
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`log.level('debug')` or in the options, see above
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## More Help
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this package/model being a simple extension of the pino json logger check their documentation http://getpino.io/#/
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@ -1,39 +1,65 @@
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import pino from 'pino'
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import { homedir } from 'os'
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import envPaths from 'env-paths'
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import { sync as mkdir } from 'make-dir'
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import { dirname, basename } from 'path'
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let pretty = false
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if(process.env.UCI_DEV) {
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pretty = process.env.UCI_LOG_PRETTY || {translateTime:true, colorize:true, levelFirst:true }
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function child (opts) {
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if (opts.env) (opts.envForce) ? (process.env.UCI_ENV = opts.env) : (process.env.UCI_ENV = process.env.UCI_ENV || opts.env)
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if (process.env.UCI_ENV === 'node') process.env.UCI_ENV = process.env.NODE_ENV
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let pretty = false
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if(process.env.UCI_ENV === 'dev' || process.env.UCI_ENV === 'development') {
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if (process.env.UCI_LOG_JSON !=='true') {
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pretty = process.env.UCI_LOG_PRETTY || opts.pretty || {translateTime:true, colorize:true, levelFirst:true }
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pretty.search = process.env.UCI_LOG_SEARCH
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}
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}
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}
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let LOG = process.env.UCI_LOG || process.env.UCI_DEV || process.env.UCI_PROD
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let LOG_PATH = (process.env.UCI_PROD===true) ? homedir()+'/logs/uci.log' : process.env.UCI_PROD
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const DATE_TIME = new Date(Date.now()).toISOString().replace( /[:.]+/g, '-' )
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const logger = pino({
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name: 'UCI',
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enabled: !!LOG,
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const LOG_PATH = (process.env.UCI_ENV=== 'production' || process.env.UCI_ENV=== 'pro' || process.env.UCI_ENV=== 'logfile' )
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? ( process.env.UCI_LOG_PATH || `${envPaths(opts.appName || opts.name || 'default').log}/${opts.logFileName || DATE_TIME}.log`) : null
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if (LOG_PATH) {
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try { mkdir(dirname(LOG_PATH)) }
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catch(err) { throw err }
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}
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// console.log('making logger (env,json,pretty,pretty-search,path)',process.env.UCI_ENV,process.env.UCI_LOG_JSON,pretty,process.env.UCI_LOG_SEARCH,LOG_PATH)
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const logger = pino({
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name: opts.libraryName || process.env.UCI_LOG_NAME || 'UCI',
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enabled: !!process.env.UCI_ENV,
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safe: true,
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serializers: {
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req: pino.stdSerializers.req,
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res: pino.stdSerializers.res
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},
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prettyPrint: pretty
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},
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// if production not enabled then LOG_PATH is empty and logs go to stdout/stderr and can be piped from there
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LOG_PATH
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)
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},
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// if production not enabled then LOG_PATH is empty and logs go to stdout/stderr and can be piped from there
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LOG_PATH
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)
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function child (opts) {
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const LOG_OPTS = {
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repo: opts.repo || 'uci-'+ opts.name,
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package: opts.package || '@uci/'+ opts.name,
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file: opts.file || `src/${opts.name}.js`,
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logger.clear = value => {console.log(value)}
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let logOpts = {
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level:opts.level,
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logPath: LOG_PATH, // if logging to file
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appName: opts.appName,
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repo: opts.repo || (opts.package) ? opts.package.replace( /[@]+/g, '' ).replace( /[/]+/g, '-' ) : null,
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package: opts.package,
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file: opts.file || `src/${basename(opts.package)}.js`,
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class: opts.class || (opts.name.charAt(0).toUpperCase() + opts.name.slice(1)),
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id: opts.id || opts.name || 'none',
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instance_created:new Date().getTime()
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instanceCreatedHR:DATE_TIME,
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instanceCreated:new Date().getTime()
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}
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return logger.child(LOG_OPTS)
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logOpts = Object.assign(logOpts,opts.additional)
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return logger.child(logOpts)
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}
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export default child
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