Fix metrics format

[nicktrn]

Grafana requires:

• # EOF marker at the end
• No empty lines

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Latest commit: a1bb023

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[coderabbitai]

Walkthrough

The code has been updated to remove empty lines from the Prisma metrics output using a regular expression, ensuring compatibility with Grafana. The order of concatenating metrics strings has been changed so that Prisma metrics now precede core metrics, with a comment explaining that core metrics end with a # EOF marker while Prisma metrics do not. The final combined metrics string is returned in the HTTP response with the correct content type header. No changes were made to the signatures or declarations of exported or public entities.

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Reviewing files that changed from the base of the PR and between fda9565 and a1bb023.

📒 Files selected for processing (1)

• apps/webapp/app/routes/metrics.ts (1 hunks)

🧰 Additional context used

🧬 Code Graph Analysis (1)

apps/webapp/app/routes/metrics.ts (2)

apps/webapp/app/db.server.ts (1)

• prisma (100-100)

apps/webapp/app/metrics.server.ts (1)

• metricsRegister (5-5)

⏰ Context from checks skipped due to timeout of 90000ms (25)

• GitHub Check: units / webapp / 🧪 Unit Tests: Webapp (10, 10)
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🔇 Additional comments (3)

apps/webapp/app/routes/metrics.ts (3)

16-17: LGTM! Regex correctly removes empty lines for Grafana compatibility.

The regex pattern /^\s*[\r\n]/gm effectively removes lines containing only whitespace or line breaks, which aligns perfectly with the PR objective of ensuring Grafana compatibility by eliminating empty lines from the metrics output.

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20-21: Excellent solution for ensuring proper EOF marker placement.

The order change and explanatory comment effectively address the requirement that metrics end with # EOF. By concatenating Prisma metrics first (which don't have EOF) followed by core metrics (which do have EOF), the final output correctly terminates with the required marker for Grafana compatibility.

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23-23: Clean implementation of the combined metrics response.

The response construction is straightforward and maintains the existing pattern while using the properly formatted metrics string that meets Grafana's requirements.

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