Make hiredis jupyter example interactive

[paoloredis]

Note

Medium Risk
Moderate risk because it changes the shared Thebe/CodeMirror initialization in baseof.html, including new dynamic loading of external CodeMirror mode code that could affect interactive code blocks site-wide.

Overview
Enables the hiredis (C) landing example to run as an interactive jupyter-example by adding the required KERNEL_NAME and %cflags directives in the C source and updating the guide to render it as a Thebe-backed snippet.

Updates the jupyter-example shortcode to preserve comment lines inside steps (so C magic comments aren’t dropped) and to emit the correct CodeMirror mode for C (text/x-csrc). Adds a matching Thebe workaround in baseof.html to lazily load CodeMirror’s C/clike mode and re-apply it to activated C cells so syntax highlighting remains intact.

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[github-actions]

DOC-6612

[github-actions]

Staging links:
https://redis.io/docs/staging/DOC-6612/develop/clients/hiredis/

[jit-ci]

🛡️ Jit Security Scan Results

✅ No security findings were detected in this PR

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^{Security scan by Jit}

[paoloredis]

@andy-stark-redis Are you ok with having //%cflags:-lhiredis in the code block? It's needed to make it interactive

[andy-stark-redis]

@andy-stark-redis Are you ok with having //%cflags:-lhiredis in the code block? It's needed to make it interactive

Can you place that line before the STEP_START? Or maybe add a comment above/below this line to say it's required for the interactive example? TBH, I don't think it's big problem even if you leave it exactly as it is - it's a comment, so it shouldn't do any harm even if someone does a copy/paste of the whole example.

[andy-stark-redis]

Most impressive one so far! Definitely approved :-)

[paoloredis]

@andy-stark-redis It has to be after STEP_START because it has to be run like the rest of the code. Would you prefer something like this?

// The following comment is required to make the example interactive.
//%cflags:-lhiredis
#include <stdio.h>
#include <stdlib.h>

Yeah, it might be helpful to add it just to avoid the reader thinking it's required for hiredis generally.

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[cursor]

Comment filter removal unintentionally changes all existing examples

Medium Severity

Removing the comment-only line filter here is a global change that affects all languages using this shortcode, not just C. For instance, the Python landing.py steps set_get_string and hash_operations contain comment-only lines like # True, # bar, and # {'surname': 'Smith', ...} that were intentionally stripped before rendering. These will now appear in the displayed step code on the live redis-py landing page. The fix could be scoped more narrowly (e.g., only preserving lines matching the //% directive pattern) rather than removing all comment filtering.

 

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