cmd/geth: add flag to set genesis #32844
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Oct 9, 2025
| if err := json.NewDecoder(f).Decode(genesis); err != nil { | ||
| Fatalf("Invalid genesis file: %v", err) | ||
| } | ||
| cfg.Genesis = genesis |
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Just want to highlight that, in this case, the ChainID will be used as the NetworkID.
I guess it's expected behavior
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This PR is an alternative to #32556.
Instead of trying to be smart and reuse
geth init, we can introduce a new flag--genesisthat loads thegenesis.jsonfrom file into theGenesisobject in the same path that the other network flags currently work in.Question: is something like
--genesisenough to start deprecatinggeth init?--
Pull the genesis from the specs and modify one of the BPO timestamps to simulate a shadow fork.