doc: add clarifying comment that creating the .bitcoin file is to avoid any mainnet datadir access #33503

1. 
   kevkevinpal commented at 6:03 pm on September 29, 2025: contributor

   referenced from #33486 (comment)

   This adds a clarifying comment to tell the reader that the creation of the ${HOME}/.bitcoin file is to ensure that there is no mainnet datadir access happening from any of the tests

2. doc: add clarifying comment that creating the .bitcoin file is to avoid any mainnet datadir access d66bf8fbd5
3. DrahtBot added the label Docs on Sep 29, 2025
4. 
   DrahtBot commented at 6:03 pm on September 29, 2025: contributor

   The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

   Code Coverage & Benchmarks

   For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/33503.

   Reviews

   See the guideline for information on the review process. A summary of reviews will appear here.

5. in ci/test/03_test_script.sh:95 in d66bf8fbd5

   91@@ -92,6 +92,7 @@ if [ "$USE_BUSY_BOX" = "true" ]; then
   92 fi
   93 
   94 # Make sure default datadir does not exist and is never read by creating a dummy file
   95+# Ensuring that no mainnet datadir access is happening from any of the tests
   

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   laanwj commented at 1:29 pm on October 23, 2025:

   This is not only about the mainnet datadir, but any default datadir. i’m not convinced that this comment adds any information beyond that in the previous line, which already states that.
6. 
   kevkevinpal commented at 2:59 pm on October 23, 2025: contributor

   closing due to lack of interest and may not add any substantial value
7. kevkevinpal closed this on Oct 23, 2025

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