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wip / experiment: use codemod to convert join and relative usage from 'path' module #4996

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What is the current behavior?

GitHub Issue Number: N/A

What is the new behavior?

Does this introduce a breaking change?

  • Yes
  • No

Testing

Other information

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github-actions bot commented Oct 26, 2023

--strictNullChecks error report

Typechecking with --strictNullChecks resulted in 1393 errors on this branch.

That's the same number of errors on main, so at least we're not creating new ones!

reports and statistics

Our most error-prone files
Path Error Count
src/dev-server/index.ts 37
src/mock-doc/serialize-node.ts 36
src/dev-server/server-process.ts 32
src/compiler/build/build-stats.ts 27
src/compiler/output-targets/dist-lazy/generate-lazy-module.ts 25
src/compiler/style/test/optimize-css.spec.ts 23
src/testing/puppeteer/puppeteer-element.ts 23
src/compiler/prerender/prerender-main.ts 22
src/runtime/vdom/vdom-render.ts 20
src/runtime/client-hydrate.ts 19
src/screenshot/connector-base.ts 19
src/compiler/config/test/validate-paths.spec.ts 16
src/dev-server/request-handler.ts 15
src/compiler/prerender/prerender-optimize.ts 14
src/compiler/sys/stencil-sys.ts 14
src/compiler/transpile/transpile-module.ts 14
src/runtime/vdom/vdom-annotations.ts 14
src/sys/node/node-sys.ts 14
src/compiler/build/build-finish.ts 13
src/compiler/prerender/prerender-queue.ts 13
Our most common errors
Typescript Error Code Count
TS2345 418
TS2322 398
TS18048 310
TS18047 100
TS2722 38
TS2532 34
TS2531 23
TS2454 14
TS2352 13
TS2769 10
TS2790 10
TS2538 8
TS2344 5
TS2416 4
TS2493 3
TS18046 2
TS2684 1
TS2488 1
TS2430 1

Unused exports report

There are 14 unused exports on this PR. That's the same number of errors on main, so at least we're not creating new ones!

Unused exports
File Line Identifier
src/runtime/bootstrap-lazy.ts 21 setNonce
src/screenshot/screenshot-fs.ts 18 readScreenshotData
src/testing/testing-utils.ts 198 withSilentWarn
src/utils/index.ts 145 CUSTOM
src/utils/index.ts 232 resolve
src/utils/index.ts 246 normalize
src/compiler/app-core/app-data.ts 25 BUILD
src/compiler/app-core/app-data.ts 115 Env
src/compiler/app-core/app-data.ts 117 NAMESPACE
src/compiler/fs-watch/fs-watch-rebuild.ts 123 updateCacheFromRebuild
src/compiler/types/validate-primary-package-output-target.ts 62 satisfies
src/compiler/types/validate-primary-package-output-target.ts 62 Record
src/testing/puppeteer/puppeteer-declarations.ts 485 WaitForEventOptions
src/compiler/sys/fetch/write-fetch-success.ts 7 writeFetchSuccessSync

rwaskiewicz added a commit that referenced this pull request Nov 9, 2023
this patch ensures that paths are properly normalized by the compiler.
this ensures that regardless of the platform (operating system) that a
project is compiled on, paths are uniformly treated internally by
stencil. this has system-wide reaching effects - from the in-memory
filesystem, to configuration/output target validation, and file
generation.

previously, stencil's in-browser compilation support included a polyfill
for the following NodeJS `path` module functions: `join`, `normalize`,
`relative` & `resolve`. this polyfill did the following:
- it wrapped each of the aforementioned functions in a `normalizePath`
  function to convert Windows-style path separators (`\\`) to
  Unix/POSIX-style path separators (`/`)
- it overwrote the standard NodeJS `path` implementations for each of
  these functions.
as a result, calling `join` or any of the other three methods, even when
importing the method from `path` like below would result in the polyfill
being called:
```ts
import { join } from 'path'; // this imports the polyfilled `join`

// runs the native `path.join`, then normalizes the returned path
const filePath = join(part1, part2);
```

while this was 'nice' in that stencil engineers didn't need to think
about which implementation of `path` functions they were using, this
polyfill made some behavior of the compiler hard to understand.

the polyfills were removed in #4317 (b042d8b). this led to calls to the
aforementioned functions to call their original implementations, rather
than the wrapped implementations:
```ts
import { join } from 'path'; // imports Node's `join`

// run the native `path.join`, without any normalization
const filePath = join(part1, part2);
```

discrepencies arose where parts of the code would explicitly wrap a
call to `join()` (or one of its ilk) around a path normalization
function. this caused paths to not be uniformly normalized throughout
the codebase, leading to errors.

since the removal of in-browser compilation, additional pull requests
to fix path-related issues on windows have landed in the codebase:
- #4545 (cd58d9c)
- #4932 (b97dadc)

this commit builds on the previous commits by attempting to move
stencil's compiler completely over to polyfilled versions of the
mentioned `path` functions that are explicitly imported/called.

Some of the changes found herein were created/validated using Alice's
codemod branch, #4996
Co-authored-by: alicewriteswrongs <alicewriteswrongs@users.noreply.github.com>

STENCIL-975 Determine Scope of Path Polyfill Bug, Fix

Fixes: #4980
Fixes: #4961

Spun Off: #5036, #5032, #5029
github-merge-queue bot pushed a commit that referenced this pull request Nov 10, 2023
* fix(compiler): normalize paths on windows

this patch ensures that paths are properly normalized by the compiler.
this ensures that regardless of the platform (operating system) that a
project is compiled on, paths are uniformly treated internally by
stencil. this has system-wide reaching effects - from the in-memory
filesystem, to configuration/output target validation, and file
generation.

previously, stencil's in-browser compilation support included a polyfill
for the following NodeJS `path` module functions: `join`, `normalize`,
`relative` & `resolve`. this polyfill did the following:
- it wrapped each of the aforementioned functions in a `normalizePath`
  function to convert Windows-style path separators (`\\`) to
  Unix/POSIX-style path separators (`/`)
- it overwrote the standard NodeJS `path` implementations for each of
  these functions.
as a result, calling `join` or any of the other three methods, even when
importing the method from `path` like below would result in the polyfill
being called:
```ts
import { join } from 'path'; // this imports the polyfilled `join`

// runs the native `path.join`, then normalizes the returned path
const filePath = join(part1, part2);
```

while this was 'nice' in that stencil engineers didn't need to think
about which implementation of `path` functions they were using, this
polyfill made some behavior of the compiler hard to understand.

the polyfills were removed in #4317 (b042d8b). this led to calls to the
aforementioned functions to call their original implementations, rather
than the wrapped implementations:
```ts
import { join } from 'path'; // imports Node's `join`

// run the native `path.join`, without any normalization
const filePath = join(part1, part2);
```

discrepencies arose where parts of the code would explicitly wrap a
call to `join()` (or one of its ilk) around a path normalization
function. this caused paths to not be uniformly normalized throughout
the codebase, leading to errors.

since the removal of in-browser compilation, additional pull requests
to fix path-related issues on windows have landed in the codebase:
- #4545 (cd58d9c)
- #4932 (b97dadc)

this commit builds on the previous commits by attempting to move
stencil's compiler completely over to polyfilled versions of the
mentioned `path` functions that are explicitly imported/called.

Some of the changes found herein were created/validated using Alice's
codemod branch, #4996
Co-authored-by: alicewriteswrongs <alicewriteswrongs@users.noreply.github.com>

STENCIL-975 Determine Scope of Path Polyfill Bug, Fix

Fixes: #4980
Fixes: #4961

Spun Off: #5036, #5032, #5029

* fix validate-dist-collection tests

* fix prerendered-write-path test

* fix stencil-types tests

this commit removes a spy on `join.resolve` and updates the mocks to
properly spy on the wrapped `@utils`' `resolve` fn

* fix validate-paths tests

this commit updates the tests for `validate-paths`. it replaces
instances of `path.join` in assertions with stencil's own `join`
function. existing instances of `path.join` have been left as-is if they
pertain to user input. this allows us to exercise a user using either
path separator in CI (which runs in windows and linux).

the cache directory is now normalized if it is absolute. otherwise,
provided cache directories in `stencil.config.ts` would never get
normalized

* fix validate-output-www tests

this commit updates the tests for `validate-paths`. it replaces
instances of `path.join` in assertions with stencil's own `join`
function. existing instances of `path.join` have been left as-is if they
pertain to user input. this allows us to exercise a user using either
path separator in CI (which runs in windows and linux).

* fix validate-output-dist tests

this commit updates the tests for `validate-output`. it replaces
instances of `path.join` in assertions with stencil's own `join`
function. existing instances of `path.join` have been left as-is if they
pertain to user input. this allows us to exercise a user using either
path separator in CI (which runs in windows and linux).

this commit also switches `output-target.ts#getcomponentsDtsSrcFilePath`
over to use Stencil's join function to fix the tests

* fix validate-output-dist-custom-element tests

this commit updates the tests for `validate-output-dist-custom-element`.
it replaces instances of `path.join` in assertions with stencil's own `join
function. existing instances of `path.join` have been left as-is if they
pertain to user input. this allows us to exercise a user using either
path separator in CI (which runs in windows and linux).

* fix validate-testing tests

this commit updates the tests for `validate-testing`. it replaces
instances of `path.join` in assertions with stencil's own `join`
function. existing instances of `path.join` have been left as-is if they
pertain to user input. this allows us to exercise a user using either
path separator in CI (which runs in windows and linux).

the screenshot connector is now normalized if it is absolute. otherwise,
provided connector file path in `stencil.config.ts` would never get
normalized
@alicewriteswrongs
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since #4997 we no longer need this!

@ltm ltm deleted the ap/join-path-normalization-codemod branch July 23, 2024 14:43
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