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George Kalpakas 93ffc67bfb fix(ngcc): update `package.json` deterministically (#34870) 
Ngcc adds properties to the `package.json` files of the entry-points it
processes to mark them as processed for a format and point to the
created Ivy entry-points (in case of `--create-ivy-entry-points`). When
running ngcc in parallel mode (which is the default for the standalone
ngcc command), multiple formats can be processed simultaneously for the
same entry-point and the order of completion is not deterministic.

Previously, ngcc would append new properties at the end of the target
object in `package.json` as soon as the format processing was completed.
As a result, the order of properties in the resulting `package.json`
(when processing multiple formats for an entry-point in parallel) was
not deterministic. For tools that use file hashes for caching purposes
(such as Bazel), this lead to a high probability of cache misses.

This commit fixes the problem by ensuring that the position of
properties added to `package.json` files is deterministic and
independent of the order in which each format is processed.

Jira issue: [FW-1801](https://angular-team.atlassian.net/browse/FW-1801)

Fixes #34635

PR Close #34870
 		2020-01-23 10:16:35 -08:00
..
src fix(ngcc): update `package.json` deterministically (#34870) 2020-01-23 10:16:35 -08:00
test fix(ngcc): update `package.json` deterministically (#34870) 2020-01-23 10:16:35 -08:00
BUILD.bazel perf(ivy): reuse prior analysis work during incremental builds (#34288) 2019-12-12 13:11:45 -08:00
README.md
…
index.ts refactor(ngcc): add support for asynchronous execution (#32427) 2019-09-09 15:55:13 -04:00
main-ivy-ngcc.ts fix(ngcc): rename the executable from `ivy-ngcc` to `ngcc` (#33140) 2019-10-14 16:29:14 +00:00
main-ngcc.ts fix(ngcc): render legacy i18n message ids by default (#34135) 2019-12-03 10:15:53 -08:00

README.md

Angular Compatibility Compiler (ngcc)

This compiler will convert node_modules compiled with ngc, into node_modules which appear to have been compiled with ngtsc.

This conversion will allow such "legacy" packages to be used by the Ivy rendering engine.

Building

The project is built using Bazel:

yarn bazel build //packages/compiler-cli/ngcc

Unit Testing

The unit tests are built and run using Bazel:

yarn bazel test //packages/compiler-cli/ngcc/test

Integration Testing

There are tests that check the behavior of the overall executable:

yarn bazel test //packages/compiler-cli/ngcc/test:integration