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ci: bump codecov-action to v6 and fail CI on upload error - #98
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codecov-action below v6.0.2 verifies the codecov CLI against Codecov's old Keybase key, which they bricked after migrating accounts, so uploads now fail with "Could not verify signature". v6 (= 6.0.2) ships the updated key. Also sets fail_ci_if_error: true (the cookiecutter-scverse template default) so a broken coverage upload surfaces as a CI failure instead of passing silently. Ref: codecov/codecov-action#1956 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
grst
approved these changes
Jun 8, 2026
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #98 +/- ##
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+ Coverage 66.79% 76.62% +9.82%
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Files 12 15 +3
Lines 524 616 +92
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+ Hits 350 472 +122
+ Misses 174 144 -30 🚀 New features to boost your workflow:
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Two changes to every codecov upload step in this repo:
@v6. Versions below 6.0.2 verify the codecov CLI binary against Codecov's old Keybase key, which they bricked after migrating accounts, so uploads now fail withCould not verify signature.@v6(= 6.0.2) ships the updated key.fail_ci_if_error: true. Matches thecookiecutter-scversetemplate default so a broken upload fails CI loudly instead of passing silently.Ref: codecov/codecov-action#1956