[SampleGen] 🚀 Enable Google Cloud client library repo support

[beccasaurus]

🚀 Enable SampleGen functionality for client library repos

» Tracking issue 🐞

Now that gapic-generator supports generating code samples in C#, Go, Java, Node.js, PHP, Python, and Ruby, each of the respective client library repositories should enable support for generated code samples so that autosynth distributes generated samples for publication.

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🖋 Sample Authoring [Journey] – (same journey as making library config changes)

• googleapis is updated – (with new sample and/or test configs)
• autosynth triggers synthtool – (results in new/updated sample/test files being generated)
• autosynth creates a Pull Request – (b/c generator output changed including sample/test files)
• Pull Request runs sample tests – (requires running $ sample-tester)
• That's all!

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📝 Two changes are required in client library repos to enable support for generated samples:

1. Update the CI / test scripts to run sample tests (*.test.yaml) using $sample-tester

2. On a per-API per-Library basis, each synth.py needs to be updated to generate samples
   (intentionally manual process to enable; enabling requires setting include_samples=True)

This issue tracks #1 – Enable CI / test scripts to run sample tests (for each language / API)

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Status / Blocking Issues

In Review

• PHP – 🤖 Generated code samples for Natural Language and Speech-to-Text [🐘]
• Python – 🤖 Generated code samples for Natural Language and Speech-to-Text [🐍]
• Ruby – 🤖 Generated code samples for Natural Language and Speech-to-Text [💎]

Upcoming (issues not yet filed against library repos)

• 🐹 Go
• 🚀 Node.js
• ☕️ Java
• #️⃣ C# / .NET

(... I'll fill in the above with links as they become available ...)

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go/library-samples (internal)

@googleapis/samplegen

[yihanzhen]

Moved to backlog. https://github.com/googleapis/gapic-generator/wiki/feature-backlog