fix(reporting): limit the width of lifecycle output

packages/default-reporter/src/index.ts

@@ -1,7 +1,6 @@
 import createDiffer = require('ansi-diff')
 import cliCursor = require('cli-cursor')
 import most = require('most')
-import R = require('ramda')
 import * as supi from 'supi'
 import PushStream = require('zen-push')
 import {EOL} from './constants'

packages/default-reporter/src/reporterForClient.ts

@@ -147,6 +147,7 @@ export default function (
     outputs.push(most.of(progress))
   }
 
+  const formatLifecycle = formatLifecycleHideOverflow.bind(null, width)
   if (!appendOnly) {
     const tarballsProgressOutput$ = log$.progress
       .filter((log) => log.status === 'fetching_started' &&
@@ -495,7 +496,13 @@ function printDiffs (pkgsDiff: PackageDiff[]) {
   return msg
 }
 
-function formatLifecycle (cwd: string, logObj: LifecycleLog) {
+const ANSI_ESCAPES_LENGTH_OF_PREFIX = hlValue(' ').length - 1
+
+function formatLifecycleHideOverflow (
+  maxWidth: number,
+  cwd: string,
+  logObj: LifecycleLog,
+) {
   const prefix = `${
     logObj.wd === logObj.depPath
       ? rightPad(formatPrefix(cwd, logObj.wd), PREFIX_MAX_LENGTH)
@@ -507,21 +514,24 @@ function formatLifecycle (cwd: string, logObj: LifecycleLog) {
   if (logObj['exitCode'] === 0) {
     return `${prefix}: done`
   }
-  const line = formatLine(logObj)
+  const maxLineWidth = maxWidth - prefix.length - 2 + ANSI_ESCAPES_LENGTH_OF_PREFIX
+  const line = formatLine(maxLineWidth, logObj)
   if (logObj.level === 'error') {
     return `${prefix}: ${line}`
   }
   return `${prefix}: ${line}`
 }
 
-function formatLine (logObj: LifecycleLog) {
+function formatLine (maxWidth: number, logObj: LifecycleLog) {
   if (typeof logObj['exitCode'] === 'number') return chalk.red(`Exited with ${logObj['exitCode']}`)
 
+  const line = stripAnsi(logObj['line']).substr(0, maxWidth)
+
   // TODO: strip only the non-color/style ansi escape codes
   if (logObj.level === 'error') {
-    return chalk.gray(stripAnsi(logObj['line']))
+    return chalk.gray(line)
   }
-  return stripAnsi(logObj['line'])
+  return line
 }
 
 function formatInstallCheck (logObj: InstallCheckLog) {

packages/default-reporter/test/index.ts

@@ -307,7 +307,7 @@ test('prints summary', t => {
 })
 
 test('groups lifecycle output', t => {
-  const output$ = toOutput$(createStreamParser(), {cmd: 'install'})
+  const output$ = toOutput$(createStreamParser(), {cmd: 'install', width: 79})
 
   const pkgId = 'registry.npmjs.org/foo/1.0.0'
 
@@ -318,7 +318,7 @@ test('groups lifecycle output', t => {
   })
   lifecycleLogger.debug({
     depPath: 'registry.npmjs.org/foo/1.0.0',
-    line: 'foo',
+    line: 'foo 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20',
     stage: 'preinstall',
   })
   lifecycleLogger.debug({
@@ -373,7 +373,7 @@ test('groups lifecycle output', t => {
     next: output => {
       t.equal(output, EOL + stripIndents`
         registry.npmjs.org/foo/1.0.0             | ${PREINSTALL}$ node foo
-        registry.npmjs.org/foo/1.0.0             | ${PREINSTALL}: foo
+        registry.npmjs.org/foo/1.0.0             | ${PREINSTALL}: foo 0 1 2 3 4 5 6 7 8 9
 
         registry.npmjs.org/foo/1.0.0             | ${POSTINSTALL}$ node foo
         registry.npmjs.org/foo/1.0.0             | ${POSTINSTALL}: foo I