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George Kalpakas 6ab43d7335 fix(ngcc): correctly detect external files from nested `node_modules/` (#36559) 
Previously, when we needed to detect whether a file is external to a
package, we only checked whether the relative path to the file from the
package's root started with `..`. This would detect external imports
when the packages were siblings (e.g. peer dependencies or hoisted to
the top of `node_modules/` by the package manager), but would fail to
detect imports from packages located in nested `node_modules/` as
external. For example, importing `node_modules/foo/node_modules/bar`
from a file in `node_modules/foo/` would be considered internal to the
`foo` package.

This could result in processing/analyzing more files than necessary.
More importantly it could lead to errors due to trying to analyze
non-Angular packages that were direct dependencies of Angular packages.

This commit fixes it by also verifying that the relative path to a file
does not start with `node_modules/`.

Jira issue: [FW-2068](https://angular-team.atlassian.net/browse/FW-2068)

Fixes #36526

PR Close #36559
 		2020-04-10 09:10:26 -07:00
..
src fix(ngcc): correctly detect external files from nested `node_modules/` (#36559) 2020-04-10 09:10:26 -07:00
test fix(ngcc): correctly detect external files from nested `node_modules/` (#36559) 2020-04-10 09:10:26 -07:00
BUILD.bazel fix(ngcc): use path-mappings from tsconfig in dependency resolution (#36180) 2020-03-24 10:16:12 -07:00
README.md refactor(ivy): move ngcc into a higher level folder (#29092) 2019-03-20 14:45:54 -04:00
index.ts style(ngcc): reformat of ngcc after clang update (#36447) 2020-04-06 09:26:57 -07:00
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): add process title (#36448) 2020-04-06 13:19:17 -07:00

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