DATADOG_API_KEY is required for --dry-run

[ericclemmons]

Bug description

Can the requirement for DATADOG_API_KEY be removed if doing a --dry-run?

In local & CI environments when not releasing, we run datadog-ci sourcemaps upload --dry-run for validation & consistency.

When doing a --dry-run, we have to conditionally set the DATADOG_API_KEY to some value (e.g. unknown) for it to run.

Describe what you expected

DATADOG_API_KEY to be ignored.

Steps to reproduce the issue

$ datadog-ci sourcemaps upload --dry-run ...
⚠️ DRY-RUN MODE ENABLED. WILL NOT UPLOAD SOURCEMAPS
Starting upload with concurrency 20.
Will look for sourcemaps in js
Will match JS files for errors on files starting with js
version: d646b861b9 service: admin project path: ./
Internal Error: DATADOG_API_KEY environment variable not set
    at new DataDogReporter (/Users/eric.clemmons/Development/external-web/node_modules/datadog-metrics/lib/reporters.js:32:15)
    at new BufferedMetricsLogger (/Users/eric.clemmons/Development/external-web/node_modules/datadog-metrics/lib/loggers.js:41:38)
    at getMetricsLogger (/Users/eric.clemmons/Development/external-web/node_modules/@datadog/datadog-ci/dist/helpers/metrics.js:21:20)
    at UploadCommand.<anonymous> (/Users/eric.clemmons/Development/external-web/node_modules/@datadog/datadog-ci/dist/commands/sourcemaps/upload.js:163:66)
    at Generator.next (<anonymous>)
    at /Users/eric.clemmons/Development/external-web/node_modules/@datadog/datadog-ci/dist/commands/sourcemaps/upload.js:31:71
    at new Promise (<anonymous>)
    at __awaiter (/Users/eric.clemmons/Development/external-web/node_modules/@datadog/datadog-ci/dist/commands/sourcemaps/upload.js:27:12)
    at UploadCommand.execute (/Users/eric.clemmons/Development/external-web/node_modules/@datadog/datadog-ci/dist/commands/sourcemaps/upload.js:142:16)
    at UploadCommand.validateAndExecute (/Users/eric.clemmons/Development/external-web/node_modules/@datadog/datadog-ci/node_modules/clipanion/lib/advanced/Command.js:73:37)
error Command failed with exit code 1.

Additional context

• Node v18.15.0
• Yarn v1.22.17

Command

sourcemaps

[bcaudan]

Hi @ericclemmons,

Indeed, when running upload commands with the dry-run flags, metrics are still reported. We could probably avoid to report those which would allow your use case.