Restore baseFee opcode

[gastonponti]

Description

Implementation of the CIP-61: Restore BaseFee opcode/header field.

Tested

Run test, e2e tests, and spin a testnet checking the hf switch in a heavy load

Related issues

• Fixes #[issue number here]

Backwards compatibility

This is part of the Gingerbread hardfork

[github-actions[bot]]

[codecov[bot]]

Codecov Report

Patch coverage: 30.39% and project coverage change: -0.02 :warning:

Comparison is base (424ce92) 55.24% compared to head (d4ad096) 55.23%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #2128 +/- ## ========================================== - Coverage 55.24% 55.23% -0.02% ========================================== Files 672 676 +4 Lines 113066 113886 +820 ========================================== + Hits 62464 62905 +441 - Misses 46789 47125 +336 - Partials 3813 3856 +43 ``` | [Impacted Files](https://app.codecov.io/gh/celo-org/celo-blockchain/pull/2128?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=celo-org) | Coverage Δ | | |---|---|---| | [cmd/utils/flags.go](https://app.codecov.io/gh/celo-org/celo-blockchain/pull/2128?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=celo-org#diff-Y21kL3V0aWxzL2ZsYWdzLmdv) | `2.54% <ø> (ø)` | | | [consensus/istanbul/backend/engine.go](https://app.codecov.io/gh/celo-org/celo-blockchain/pull/2128?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=celo-org#diff-Y29uc2Vuc3VzL2lzdGFuYnVsL2JhY2tlbmQvZW5naW5lLmdv) | `62.26% <0.00%> (-0.84%)` | :arrow_down: | | [contracts/gasprice\_minimum/gasprice\_minimum.go](https://app.codecov.io/gh/celo-org/celo-blockchain/pull/2128?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=celo-org#diff-Y29udHJhY3RzL2dhc3ByaWNlX21pbmltdW0vZ2FzcHJpY2VfbWluaW11bS5nbw==) | `43.75% <0.00%> (-5.65%)` | :arrow_down: | | [core/types/block.go](https://app.codecov.io/gh/celo-org/celo-blockchain/pull/2128?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=celo-org#diff-Y29yZS90eXBlcy9ibG9jay5nbw==) | `32.29% <0.00%> (-1.04%)` | :arrow_down: | | [eth/api\_backend.go](https://app.codecov.io/gh/celo-org/celo-blockchain/pull/2128?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=celo-org#diff-ZXRoL2FwaV9iYWNrZW5kLmdv) | `0.00% <0.00%> (ø)` | | | [eth/filters/api.go](https://app.codecov.io/gh/celo-org/celo-blockchain/pull/2128?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=celo-org#diff-ZXRoL2ZpbHRlcnMvYXBpLmdv) | `43.42% <0.00%> (-1.03%)` | :arrow_down: | | [ethclient/ethclient.go](https://app.codecov.io/gh/celo-org/celo-blockchain/pull/2128?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=celo-org#diff-ZXRoY2xpZW50L2V0aGNsaWVudC5nbw==) | `32.49% <0.00%> (-0.28%)` | :arrow_down: | | [internal/ethapi/api.go](https://app.codecov.io/gh/celo-org/celo-blockchain/pull/2128?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=celo-org#diff-aW50ZXJuYWwvZXRoYXBpL2FwaS5nbw==) | `3.89% <0.00%> (-0.04%)` | :arrow_down: | | [les/api\_backend.go](https://app.codecov.io/gh/celo-org/celo-blockchain/pull/2128?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=celo-org#diff-bGVzL2FwaV9iYWNrZW5kLmdv) | `0.00% <0.00%> (ø)` | | | [les/test\_helper.go](https://app.codecov.io/gh/celo-org/celo-blockchain/pull/2128?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=celo-org#diff-bGVzL3Rlc3RfaGVscGVyLmdv) | `89.17% <ø> (-0.44%)` | :arrow_down: | | ... and [13 more](https://app.codecov.io/gh/celo-org/celo-blockchain/pull/2128?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=celo-org) | | ... and [30 files with indirect coverage changes](https://app.codecov.io/gh/celo-org/celo-blockchain/pull/2128/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=celo-org)

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[palango]

What's the relation of this PR and https://github.com/celo-org/celo-monorepo/pull/10274? Do we need to wait until the update is merged or do we just pull the changes in our monorepo branch? If so, will that cause problems with the v10 contracts release?

[github-actions[bot]]

Coverage from tests in ./e2e_test/... for ./consensus/istanbul/... at commit b9a80e5fd9de1a43bc5d437f9501c3588ff88f17

coverage: 47.6% of statements across all listed packages

coverage:  59.6% of statements in consensus/istanbul
coverage:  40.4% of statements in consensus/istanbul/announce
coverage:  54.5% of statements in consensus/istanbul/backend
coverage:   0.0% of statements in consensus/istanbul/backend/backendtest
coverage:  24.3% of statements in consensus/istanbul/backend/internal/replica
coverage:  57.7% of statements in consensus/istanbul/core
coverage:  45.0% of statements in consensus/istanbul/db
coverage:   0.0% of statements in consensus/istanbul/proxy
coverage:  64.4% of statements in consensus/istanbul/uptime
coverage:  51.8% of statements in consensus/istanbul/validator
coverage:  79.2% of statements in consensus/istanbul/validator/random