--localize produces files with same hash values, even though file contents are different

[mstawick]

🐞 Bug report

Angular CLI: 9.0.0-rc.7, Angular: 9.0.0-rc.7

Command (mark with an x)

• new
• build
• serve
• test
• e2e
• generate
• add
• update
• lint
• xi18n
• run
• config
• help
• version
• doc

Is this a regression?

Not sure, I haven't used localization with prior versions.

Description

If I have two locales configured, build process will generate two sets of files, one per locale, but the file names (including hash parts) are identical for corresponding files in both sets, even though contents of the files are different due to translations.

🔬 Minimal Reproduction

Have a project with two locales set up, and translated messages in place. Then build it using --localize option and compare file names in resulting localized builds.

🔥 Exception or Error

No error.

🌍 Your Environment

Angular CLI: 9.0.0-rc.7
Node: 12.14.0
OS: linux x64

Angular: 9.0.0-rc.7
... animations, cli, common, compiler, compiler-cli, core, forms
... language-service, localize, platform-browser
... platform-browser-dynamic, router
Ivy Workspace: Yes

Package                            Version
------------------------------------------------------------
@angular-devkit/architect          0.900.0-rc.7
@angular-devkit/build-angular      0.900.0-rc.7
@angular-devkit/build-optimizer    0.900.0-rc.7
@angular-devkit/build-webpack      0.900.0-rc.7
@angular-devkit/core               9.0.0-rc.7
@angular-devkit/schematics         9.0.0-rc.7
@angular/cdk                       9.0.0-rc.6
@angular/material                  9.0.0-rc.6
@angular/material-moment-adapter   9.0.0-rc.6
@ngtools/webpack                   9.0.0-rc.7
@schematics/angular                9.0.0-rc.7
@schematics/update                 0.900.0-rc.7
rxjs                               6.5.3
typescript                         3.6.4
webpack                            4.41.2

[filipesilva]

I think this is a regression because localization used to happen on an earlier part of the build pipeline, but now happens as a post-processing step.

[mstawick]

FYI, it messes up source maps as well.