Official Go implementation of the Ethereum protocol

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lightclient 1f50aa7631 cmd,internal/era: implement `export-history` subcommand (#26621) ... * all: implement era format, add history importer/export * internal/era/e2store: refactor e2store to provide ReadAt interface * internal/era/e2store: export HeaderSize * internal/era: refactor era to use ReadAt interface * internal/era: elevate anonymous func to named * cmd/utils: don't store entire era file in-memory during import / export * internal/era: better abstraction between era and e2store * cmd/era: properly close era files * cmd/era: don't let defers stack * cmd/geth: add description for import-history * cmd/utils: better bytes buffer * internal/era: error if accumulator has more records than max allowed * internal/era: better doc comment * internal/era/e2store: rm superfluous reader, rm superfluous testcases, add fuzzer * internal/era: avoid some repetition * internal/era: simplify clauses * internal/era: unexport things * internal/era,cmd/utils,cmd/era: change to iterator interface for reading era entries * cmd/utils: better defer handling in history test * internal/era,cmd: add number method to era iterator to get the current block number * internal/era/e2store: avoid double allocation during write * internal/era,cmd/utils: fix lint issues * internal/era: add ReaderAt func so entry value can be read lazily Co-authored-by: lightclient <lightclient@protonmail.com> Co-authored-by: Martin Holst Swende <martin@swende.se> * internal/era: improve iterator interface * internal/era: fix rlp decode of header and correctly read total difficulty * cmd/era: fix rebase errors * cmd/era: clearer comments * cmd,internal: fix comment typos --------- Co-authored-by: Martin Holst Swende <martin@swende.se>		8 months ago
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e2store.go	cmd,internal/era: implement `export-history` subcommand (#26621)	8 months ago
e2store_test.go	cmd,internal/era: implement `export-history` subcommand (#26621)	8 months ago