I sometimes multitask during a large compile (wifi, etc libraries) and don't get back in time to press the ESP32 upload button. If the connection times out, the IDE recompiles all the source again. Am I wrong that it should know there were no edits therefore the binary is valid and can be uploaded without a recompile?
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Yes, I've noticed this recently - you don't even need the connection error: The verify works fine, no changes are made, and then upon hitting upload, the sketch is recompiled (needlessly). I can't remember if that was always the case, with earlier versions of the IDE, but I assume that it was and I am just noticing it more these days. It is probably due to the IDE being unable to detect any file changes in the sketch and its dependencies - because that "feature" hasn't been coded yet - so the IDE just "plays it safe" and compiles the lot, just in case something had changed in one of the filesGreenonline– Greenonline2025年07月31日 18:04:50 +00:00Commented Jul 31 at 18:04
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just do the upload from command linejsotola– jsotola2025年08月01日 02:28:48 +00:00Commented Aug 1 at 2:28
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Yes, earlier versions also recompile before upload. It would seem that the IDE editor's 'dirty-bit' - => unsaved changes exist - should have been consulted. The only case where this might be insufficient is if another process, a standalone text editor, e.g., might have changed the file. But even that is detectable in the IDE by testing whether IDE saved time == file's saved time.JRobert– JRobert2025年08月01日 15:11:06 +00:00Commented Aug 1 at 15:11
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Which version of the IDE do you use?the busybee– the busybee2025年08月02日 15:58:22 +00:00Commented Aug 2 at 15:58