Skip GCC pre-process task if sketch and dependencies do not change.#3112
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## master #3112 +/- ##
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+ Coverage 69.57% 69.60% +0.02%
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Files 253 253
Lines 19280 19284 +4
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+ Hits 13414 13422 +8
+ Misses 4628 4626 -2
+ Partials 1238 1236 -2
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This changes does some cleanup in the generation and use of the merged sketch (sketch.ino.cpp.merged) and Arduino Preprocessed sketch (sketch.ino.cpp).
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giulio93
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lucarin91
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Mar 9, 2026
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I would avoid using paths if you really just need a filename. In the comments below, I suggest some updates to clarify that
cmaglie
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Mar 9, 2026
Co-authored-by: Cristian Maglie <c.maglie@bug.st>
Co-authored-by: Luca Rinaldi <to@lucar.in>
Co-authored-by: Luca Rinaldi <to@lucar.in>
Co-authored-by: Luca Rinaldi <to@lucar.in>
Co-authored-by: Luca Rinaldi <to@lucar.in>
Co-authored-by: Luca Rinaldi <to@lucar.in>
Co-authored-by: Cristian Maglie <c.maglie@bug.st>
Co-authored-by: Cristian Maglie <c.maglie@bug.st>
cmaglie
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dido18
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LGTM, I did not test on real board
lucarin91
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This was referenced Mar 18, 2026
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…the target file is missing (#3149) This is a regression introduced in #3112, but not yet released. * Move sketch-unchanged check down one level * fix: Arduino Preprocessor must always run if the target file is missing * Slight refactor for readability * Added integration test * Refactoring and modernization of the if condition
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UPGRADING.mdhas been updated with a migration guide (for breaking changes)configuration.schema.jsonupdated if new parameters are added.What kind of change does this PR introduce?
In an effort to optimize compilation times, this PR adds the ability to the Arduino CLI to detect whether the Arduino Preprocessing of the sketch could be skipped.
What is the current behavior?
The GCC task is run even if the Task did not changed
What is the new behavior?
The GCC task args are hashed and is stored in order to be able to compare it with prev/next recompile GCC task
Does this PR introduce a breaking change, and is titled accordingly?
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