Pete Bacon Darwin c65ac7fbad perf(ivy): ngcc - exit early if the targeted package has been compiled (#29740)
Previously we always walked the whole folder tree looking for
entry-points before we tested whether a target package had been
processed already. This could take >10secs!

This commit does a quick check of the target package before doing
the full walk which brings down the execution time for ngcc in this
case dramatically.

```
$ time ./node_modules/.bin/ivy-ngcc -t @angular/common/http/testing
Compiling @angular/core : fesm2015 as esm2015
Compiling @angular/core : fesm5 as esm5
Compiling @angular/core : esm2015 as esm2015
Compiling @angular/core : esm5 as esm5
Compiling @angular/common/http : fesm2015 as esm2015
Compiling @angular/common/http : fesm5 as esm5
Compiling @angular/common/http : esm2015 as esm2015
Compiling @angular/common/http : esm5 as esm5
Compiling @angular/common/http/testing : fesm2015 as esm2015
Compiling @angular/common/http/testing : fesm5 as esm5
Compiling @angular/common/http/testing : esm2015 as esm2015
Compiling @angular/common/http/testing : esm5 as esm5

real	0m19.766s
user	0m28.533s
sys	0m2.262s
```

```
$ time ./node_modules/.bin/ivy-ngcc -t @angular/common/http/testing
The target entry-point has already been processed

real	0m0.666s
user	0m0.605s
sys	0m0.113s
```

PR Close #29740
2019-04-08 09:48:20 -07:00
2019-01-11 11:15:59 -08:00

CircleCI BrowserStack Status Join the chat at https://gitter.im/angular/angular npm version

Angular

Angular is a development platform for building mobile and desktop web applications using Typescript/JavaScript and other languages.

Quickstart

Get started in 5 minutes.

Changelog

Learn about the latest improvements.

Want to help?

Want to file a bug, contribute some code, or improve documentation? Excellent! Read up on our guidelines for contributing and then check out one of our issues in the hotlist: community-help.

S
Description
Generates Angular code and provides architectural guidance. Trigger when creating projects, components, services, or HTTP communication, or for best practices…
Readme MIT 1 GiB
Languages
TypeScript 81.7%
JavaScript 12.8%
HTML 2%
Starlark 1.8%
CSS 1%
Other 0.7%