ng build --prod --watch compiles app state before the save

Description:

While running a build watch with the ‘–prod’ or ‘–aot’ options, the results to dist seem to be one save behind. Meaning, if I make a change and save, the change is detected and the project builds, however the results are the state of the app before the change. If I make another change, like adding a new line to a file, the change is detected and the project built, with the results of the previous save but not capturing the new lines added.

Note: This issue goes away if the ‘–prod’ or ‘–aot’ options are not used.

OS?

Windows 10

Versions.

@angular/cli: 1.0.0-beta.30 node: 6.9.5 os: win32 x64 @angular/common: 2.4.8 @angular/compiler: 2.4.8 @angular/core: 2.4.8 @angular/forms: 2.4.8 @angular/http: 2.4.8 @angular/platform-browser: 2.4.8 @angular/platform-browser-dynamic: 2.4.8 @angular/router: 3.4.8 @angular/cli: 1.0.0-beta.30 @angular/compiler-cli: 2.4.8

Repro steps.

ng new test-app ng build --prod --watch or ng build --aot --watch or ng build --prod --aot --watch

The log given by the failure.

None

[filipesilva]

I investigated a bit more and this doesn’t seem to happen on all changes.

I can reproduce when changing a component template, but not when changing the component itself (changes are immediately reflected in this case).

So this seems related to the child compilers we use.

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