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Support custom ESP32 partition tables#77

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petermm wants to merge 1 commit into
atomvm:mainfrom
petermm:custom-partitions
Open

Support custom ESP32 partition tables#77
petermm wants to merge 1 commit into
atomvm:mainfrom
petermm:custom-partitions

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@petermm

@petermm petermm commented Jul 23, 2026

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This enables a project to be more self-contained - support A/B OTA etc.

Allow mix atomvm.esp32.build to use custom_partitions.csv from the project root or an explicit --partition-table CSV by copying it to AtomVM's partitions-elixir.csv for the duration of the build.

Validate custom partition files before the ESP-IDF build, force a clean ESP32 build when custom partitions are present, and restore the AtomVM checkout after the build completes.

Move custom partition resolution, copy, restore, and same-file handling into ExAtomVM.Esp32CustomPartitions with focused coverage. Ignore ExUnit tmp_dir scratch output.

Allow mix atomvm.esp32.build to use custom_partitions.csv from the project root or an explicit --partition-table CSV by copying it to AtomVM's partitions-elixir.csv for the duration of the build.

Validate custom partition files before the ESP-IDF build, force a clean ESP32 build when custom partitions are present, and restore the AtomVM checkout after the build completes.

Move custom partition resolution, copy, restore, and same-file handling into ExAtomVM.Esp32CustomPartitions with focused coverage. Ignore ExUnit tmp_dir scratch output.

Signed-off-by: Peter M <petermm@gmail.com>
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