Add --hide-passed flag to only output failed checks (#199)

* Add `--quiet` flag to only output failed checks

* Rename `--quiet` -> `--hide-passed`

packages/size-limit/create-reporter.js

@@ -67,6 +67,8 @@ function createHumanReporter (process) {
     results (plugins, config) {
       print('')
       for (let check of config.checks) {
+        if (check.passed && config.hidePassed) continue
+
         let unlimited = typeof check.passed === 'undefined'
         let rows = []
 

packages/size-limit/get-config.js

@@ -18,7 +18,8 @@ let OPTIONS = {
   gzip: ['webpack', 'file'],
   running: 'time',
   disableModuleConcatenation: 'webpack',
-  brotli: 'webpack'
+  brotli: 'webpack',
+  hidePassed: false
 }
 
 function isStrings (value) {
@@ -87,6 +88,9 @@ module.exports = async function getConfig (plugins, process, args, pkg) {
   if (args.cleanDir) {
     config.cleanDir = args.cleanDir
   }
+  if (args.hidePassed) {
+    config.hidePassed = args.hidePassed
+  }
 
   if (args.files.length > 0) {
     config.checks = [{ files: args.files }]

packages/size-limit/parse-args.js

@@ -26,6 +26,8 @@ module.exports = function parseArgs (plugins, argv) {
         )
       }
       args.cleanDir = true
+    } else if (arg === '--hide-passed') {
+      args.hidePassed = true
     } else if (arg === '--why') {
       if (!plugins.has('webpack')) {
         throw new SizeLimitError('argWithoutWebpack', 'why')

packages/size-limit/test/__snapshots__/create-reporter.test.js.snap

@@ -1,5 +1,21 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`only renders failed results with --hide-passed flag 1`] = `
+"  
+  small fail
+  Package size limit has exceeded by 1 B
+  Size limit: 102400 B
+  Size:       102401 B gzipped
+  
+  big fail
+  Package size limit has exceeded by 100 B
+  Size limit: 100 KB
+  Size:       100.1 KB gzipped
+  
+  Try to reduce size or increase limit in \\"size-limit\\" section of package.json
+"
+`;
+
 exports[`renders JSON results 1`] = `
 "[
   {

packages/size-limit/test/create-reporter.test.js

@@ -84,6 +84,36 @@ it('renders failed results', () => {
   ).toMatchSnapshot()
 })
 
+it('only renders failed results with --hide-passed flag', () => {
+  expect(
+    results(['file'], {
+      checks: [
+        {
+          name: 'ok',
+          size: 102400,
+          sizeLimit: 102400,
+          passed: true
+        },
+        {
+          name: 'small fail',
+          size: 102401,
+          sizeLimit: 102400,
+          passed: false
+        },
+        {
+          name: 'big fail',
+          size: 102500,
+          sizeLimit: 102400,
+          passed: false
+        }
+      ],
+      hidePassed: true,
+      failed: true,
+      configPath: 'package.json'
+    })
+  ).toMatchSnapshot()
+})
+
 it('renders single result', () => {
   expect(
     results(['file'], {

packages/size-limit/test/get-config.test.js

@@ -100,12 +100,13 @@ it('overrides limit by CLI arg', async () => {
 })
 
 it('normalizes bundle and webpack arguments', async () => {
-  let args = ['--why', '--save-bundle', 'out', '--clean-dir']
+  let args = ['--why', '--save-bundle', 'out', '--clean-dir', '--hide-passed']
   expect(await check('webpack', args)).toEqual({
     configPath: 'package.json',
     cwd: fixture('webpack'),
     why: true,
     project: 'webpack',
+    hidePassed: true,
     saveBundle: fixture('webpack', 'out'),
     cleanDir: true,
     checks: [