Fix wrapping ESM files with absolute path

[serkan-ozal]

Which problem is this PR solving?

Currently ESM files are not able to instrumented with absolute path, but as modules. Instrumenting ESM files with absolute path is needed for AWS Lambda functions, as ESM based handlers are supported since long time (https://aws.amazon.com/tr/about-aws/whats-new/2022/01/aws-lambda-es-modules-top-level-await-node-js-14/)

For example, here is the issue we have faced in AWS Lambda Node.js layer: open-telemetry/opentelemetry-lambda#1557

Note: To have ESM support for AWS Lambda functions, there will be subsequent PRs to the opentelemetry-js-contrib and opentelemetry-lambda repositories based on this.

Short description of the changes

When ESM files to be instrumented are provided with their absolute paths, import-in-the-middle library passes module name parameter as full path without any baseDir parameter (but require-in-the-middle library doesn't work like this for the instrumentation of the CommonJS modules).

However, _onRequire method requires those parameters with proper values (name as filename and baseDir as the directory of the file). So, this PR makes the required conversion for the name and baseDir parameters to be able to used properly by the _onRequire method.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Added tests to experimental/packages/opentelemetry-instrumentation/test/node/EsmInstrumentation.test.mjs

• EsmInstrumentation.test

Checklist:

• Followed the style guidelines of this project
• Unit tests have been added
• Documentation has been updated

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.17%. Comparing base (6f4f3fc) to head (784b805).
Report is 1 commits behind head on main.

Additional details and impacted files

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[pragmaticivan]

🔥

[JamieDanielson]

Thanks @serkan-ozal can you also add a changelog entry?

[serkan-ozal]

@JamieDanielson @dyladan Done. Added README. All is green now.