lint: Require scripted-diff script to succeed (take 2) #35560

1. 
   maflcko commented at 9:52 AM on June 18, 2026: member

   Currently, scripted diffs may silently pass with errors.

   Fix this issue by calling the script from a Bash instance with error checking enabled: bash -o errexit -o nounset -o pipefail -c "$SCRIPT".

   Also, use Bash (not sh) when launching the script itself, because Bash is required anyway.

   Can be tested by running something like this and observing the behavior before and after:

   git commit --allow-empty -m $'scripted-diff: foo\n\n-BEGIN VERIFY SCRIPT-\n  false;falseasfsafsaf;true;false|cat; echo "${NO_UN_SET}"|cat  \n-END VERIFY SCRIPT-\n' && ./test/lint/commit-script-check.sh HEAD~..HEAD ; echo $?
   

   Alternatively, an ancient brittle script can be tested:

   ./test/lint/commit-script-check.sh fb65dde147f63422c4148b089c2f5be0bf5ba80f~..fb65dde147f63422c4148b089c2f5be0bf5ba80f
   

2. lint: Require scripted-diff script to succeed fab2874269
3. DrahtBot added the label Tests on Jun 18, 2026
4. 
   DrahtBot commented at 9:52 AM on June 18, 2026: contributor

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   Code Coverage & Benchmarks

   For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/35560.

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5. hodlinator approved
6. 
   hodlinator commented at 12:01 PM on June 18, 2026: contributor

   ACK fab2874269c865c9e8e2e347159fb17650efd83c

   This is a more complete version of #35547.

   My only nit is that the PR and commit message titles are copies of that earlier PR ("lint: Require scripted-diff script to succeed"). If you re-touch it would be nice to have both more distinct.

   Verified PR by using this scripted diff commit:

   scripted-diff: foo
   
   -BEGIN VERIFY SCRIPT-
     cat non_existent_file
     true
   -END VERIFY SCRIPT-
   

7. maflcko renamed this:
   lint: Require scripted-diff script to succeed
   lint: Require scripted-diff script to succeed (take 2)
   on Jun 18, 2026
8. 
   maflcko commented at 12:23 PM on June 18, 2026: member

   Sure, added (take 2)

9. fanquake added this to the milestone 32.0 on Jun 19, 2026

Contributors

maflckoDrahtBothodlinator

Milestone
32.0