feat(epochs): backport the module from SDK #102
Conversation
WalkthroughThis update primarily involves a series of enhancements and modifications across several components of the Exocore project. Key changes include integrating GitHub tokens in workflow configurations, adopting the new Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant CLI
participant EpochsModule
participant Blockchain
User ->> CLI: Query Epoch Info
CLI ->> EpochsModule: GetEpochInfo
EpochsModule ->> Blockchain: Retrieve Epoch Data
Blockchain -->> EpochsModule: Epoch Data
EpochsModule -->> CLI: Epoch Info
CLI -->> User: Display Epoch Info
User ->> CLI: Query Current Epoch
CLI ->> EpochsModule: GetCurrentEpoch
EpochsModule ->> Blockchain: Retrieve Current Epoch
Blockchain -->> EpochsModule: Current Epoch
EpochsModule -->> CLI: Current Epoch Info
CLI -->> User: Display Current Epoch
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Actionable comments posted: 9
Outside diff range and nitpick comments (2)
x/epochs/simulation/genesis.go (1)
20-31: Consider adding a comment explaining why the maximum number of epochs is set to 10 for clarity.x/epochs/keeper/keeper.go (1)
40-50: The methodSetHookscorrectly prevents setting the hooks more than once and checks for nil, which are good security practices. However, consider adding a comment to explain why setting hooks twice is prohibited, as it might not be immediately clear to other developers.
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Files ignored due to path filters (3)
x/epochs/types/genesis.pb.gois excluded by!**/*.pb.gox/epochs/types/query.pb.gois excluded by!**/*.pb.gox/epochs/types/query.pb.gw.gois excluded by!**/*.pb.gw.go
Files selected for processing (31)
- app/app.go (1 hunks)
- go.mod (4 hunks)
- local_node.sh (1 hunks)
- proto/exocore/epochs/v1/genesis.proto (1 hunks)
- proto/exocore/epochs/v1/query.proto (2 hunks)
- testutil/utils.go (4 hunks)
- x/dogfood/keeper/impl_epochs_hooks.go (1 hunks)
- x/dogfood/types/expected_keepers.go (1 hunks)
- x/dogfood/types/params.go (2 hunks)
- x/epochs/README.md (1 hunks)
- x/epochs/client/cli/query.go (1 hunks)
- x/epochs/keeper/abci.go (1 hunks)
- x/epochs/keeper/abci_test.go (1 hunks)
- x/epochs/keeper/epoch_infos.go (1 hunks)
- x/epochs/keeper/epoch_infos_test.go (1 hunks)
- x/epochs/keeper/genesis.go (1 hunks)
- x/epochs/keeper/grpc_query.go (1 hunks)
- x/epochs/keeper/grpc_query_test.go (1 hunks)
- x/epochs/keeper/keeper.go (1 hunks)
- x/epochs/keeper/setup_test.go (1 hunks)
- x/epochs/keeper/utils_test.go (1 hunks)
- x/epochs/module.go (1 hunks)
- x/epochs/simulation/genesis.go (1 hunks)
- x/epochs/types/codec.go (1 hunks)
- x/epochs/types/errors.go (1 hunks)
- x/epochs/types/events.go (1 hunks)
- x/epochs/types/genesis.go (1 hunks)
- x/epochs/types/genesis_test.go (1 hunks)
- x/epochs/types/hooks.go (1 hunks)
- x/epochs/types/identifier.go (1 hunks)
- x/epochs/types/keys.go (1 hunks)
Files not reviewed due to errors (3)
- local_node.sh (Error: Server error. Please try again later.)
- testutil/utils.go (Error: Server error. Please try again later.)
- app/app.go (Error: Server error. Please try again later.)
Files skipped from review due to trivial changes (3)
- x/dogfood/types/params.go
- x/epochs/types/events.go
- x/epochs/types/identifier.go
Additional context used
LanguageTool
x/epochs/README.md
[grammar] ~46-~46: The word ‘begin’ is not a noun. Did you mean “beginning” or “start”? (PREPOSITION_VERB)
Context: ...logic, and are only modified during the begin blocker. ## Hooks ```go // the firs...
Markdownlint
x/epochs/README.md
36-36: Expected: asterisk; Actual: underscore (MD049, emphasis-style)
Emphasis style
36-36: Expected: asterisk; Actual: underscore (MD049, emphasis-style)
Emphasis style
Additional comments not posted (45)
x/epochs/keeper/utils_test.go (1)
9-15: The setup for query helpers and registration of the query server inPostSetuplooks well-implemented.x/epochs/types/errors.go (2)
15-17: The error registration forErrInvalidGenesisDatais clear and follows standard practices.
18-20: The error registration forErrDuplicateEpochInfois clear and follows standard practices.x/epochs/types/keys.go (2)
3-14: The constants for module identification and key management are clearly defined and follow naming conventions.
19-22: The implementation ofKeyEpochis correct and efficiently combines the prefix with the identifier.x/epochs/keeper/genesis.go (2)
19-24: The implementation ofExportGenesisis clean and adheres to the single responsibility principle by delegating data fetching toAllEpochInfos.
10-17: Ensure validation ofepochdata before adding to keeper to prevent potential security issues. Consider documenting where and how the epochs are validated.Verification successful
The
AddEpochInfofunction inepoch_infos.godoes indeed include validation logic through theepochInfo.Validate()call. This confirms that the epochs are validated before being added, addressing the security concern mentioned in the review comment.
epoch_infos.go:13:if err := epochInfo.Validate(); err != nil {This validation ensures that the epoch data is checked for correctness before being processed further.
Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify that epoch data is validated before being used in InitGenesis. # Test: Search for validation logic. rg --type go 'validate.*epoch' x/epochs/keeper/Length of output: 258
Script:
#!/bin/bash # Description: Find and inspect the validation function in epoch_infos.go. # Locate the validation function. rg --type go 'func .*validate.*epoch' x/epochs/keeper/epoch_infos.goLength of output: 70
Script:
#!/bin/bash # Description: Broaden search to locate validation logic for epochs across the entire codebase. # Search for validation functions related to epochs. rg --type go 'func .*validate.*epoch'Length of output: 39
Script:
#!/bin/bash # Description: Search for references to AddEpochInfo to trace validation logic. # Find references to AddEpochInfo across the codebase. rg 'AddEpochInfo'Length of output: 448
Script:
#!/bin/bash # Description: Extract and review the AddEpochInfo function from epoch_infos.go. # Extract the AddEpochInfo function. ast-grep --lang go --pattern $'func (k Keeper) AddEpochInfo(ctx sdk.Context, epochInfo types.EpochInfo) error { $$$ }' x/epochs/keeper/epoch_infos.goLength of output: 1434
x/epochs/keeper/setup_test.go (2)
14-17: TheKeeperTestSuitestructure is well set up for unit testing with necessary fields and inheritance fromBaseTestSuite.
24-35: TheSetupTestmethod effectively prepares the test environment by ensuring all configured epochs are correctly initialized and meet expected conditions.x/epochs/simulation/genesis.go (2)
15-18:GenDurationis correctly implemented for generating a random duration between 1 hour and 1 week, suitable for simulation testing.
33-46:RandomizedGenStateis well-implemented for simulation purposes, with appropriate error handling and use ofjson.MarshalIndentfor enhanced log readability.x/epochs/types/hooks.go (2)
7-12: TheEpochHooksinterface is clearly defined, appropriately capturing the necessary methods for epoch event handling.
16-37:MultiEpochHooksis well-designed for combining multiple epoch hooks, allowing modular management and sequential execution of hook methods.x/epochs/keeper/keeper.go (1)
35-38: The use offmt.Sprintfin theLoggermethod is efficient for constructing the module-specific logger. This is a good use of contextual logging.x/epochs/keeper/epoch_infos_test.go (1)
9-34: The test is well-organized and checks the persistence and ordering of epochs effectively. The use of alphabetical order for validation is a smart way to ensure consistency in the data retrieved.proto/exocore/epochs/v1/query.proto (2)
14-20: The endpoint changes in therpc EpochInfosandrpc CurrentEpochmethods are correctly updated to reflect the new namespace. This adheres to the best practices of maintaining clear and consistent endpoint naming conventions.
34-36: The response message forQueryEpochsInfoResponsenow correctly specifies that the pagination is for the response, not the request. This change improves the clarity of the API documentation.x/epochs/keeper/grpc_query.go (1)
49-68: TheCurrentEpochmethod is well-implemented with clear error handling for not found cases. This method ensures that users will receive a meaningful error message if an epoch is not found, which enhances the user experience.
[APROVED]x/epochs/types/genesis.go (5)
10-12: The functionNewGenesisStatecorrectly initializes aGenesisStatewith a provided slice ofEpochInfo. This is a straightforward factory function.
14-24: TheDefaultGenesisfunction provides a sensible set of default epochs. The use of time constants (e.g.,time.Hour*24) is clear and correct. It's good practice to comment that epochs are in alphabetical order, which aids in maintainability.
26-40: TheValidatemethod forGenesisStatechecks for unique epoch identifiers and validates eachEpochInfo. Using a map to check for uniqueness is efficient. The error handling witherrorsmod.Wrapfis appropriate, providing clear error messages.
42-58: TheValidatemethod forEpochInfocorrectly checks for required conditions such as non-empty identifiers and non-zero duration. The use of plainerrors.Newfor error messages is consistent and clear.
60-70: TheNewGenesisEpochInfofunction initializesEpochInfowith sensible defaults and parameters. Setting the start times and flags to their zero values is a good default behavior, ensuring that there are no uninitialized properties.
[APROVED]x/dogfood/keeper/impl_epochs_hooks.go (3)
7-7: The import path has been correctly updated to reflect the new location of theepochs/types. This is part of the transition fromevmostoExocoreNetwork.
Line range hint
52-53: TheBeforeEpochStartmethod is correctly implemented as a no-op for this context. This is a clear and minimalistic approach when no action is required.
Line range hint
1-51: TheAfterEpochEndmethod handles various lifecycle events at the end of an epoch. The logic within the method is complex but appears well-structured and handles multiple aspects of state transition. Ensure that all methods called (MarkEpochEnd,GetOptOutsToFinish, etc.) are correctly implemented and tested, as they are crucial for the correct functioning of the epoch transitions.Verification successful
All the methods called within the
AfterEpochEndfunction (MarkEpochEnd,GetOptOutsToFinish,SetPendingOptOuts,DeleteOperatorOptOutFinishEpoch,ClearOptOutsToFinish,GetConsensusAddrsToPrune,SetPendingConsensusAddrs, andClearConsensusAddrsToPrune) are implemented in the codebase. This confirms that the logic within theAfterEpochEndmethod is supported by the necessary implementations.
MarkEpochEnd: Implemented inx/dogfood/keeper/keeper.goGetOptOutsToFinish: Implemented inx/dogfood/keeper/opt_out.goSetPendingOptOuts: Implemented inx/dogfood/keeper/pending.goDeleteOperatorOptOutFinishEpoch: Implemented inx/dogfood/keeper/opt_out.goClearOptOutsToFinish: Implemented inx/dogfood/keeper/opt_out.goGetConsensusAddrsToPrune: Implemented inx/dogfood/keeper/opt_out.goSetPendingConsensusAddrs: Implemented inx/dogfood/keeper/pending.goClearConsensusAddrsToPrune: Implemented inx/dogfood/keeper/opt_out.goScripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the implementation and test coverage for methods called in AfterEpochEnd. # Test: Search for the implementation and tests for MarkEpochEnd, GetOptOutsToFinish, etc. rg --type go $'MarkEpochEnd\\(\\)|GetOptOutsToFinish\\(\\)'Length of output: 56
Script:
#!/bin/bash # Description: Verify the implementation and test coverage for methods called in AfterEpochEnd. # Test: Search for the implementation and tests for MarkEpochEnd echo "Searching for MarkEpochEnd implementation and tests..." rg --type go 'func MarkEpochEnd' # Test: Search for the implementation and tests for GetOptOutsToFinish echo "Searching for GetOptOutsToFinish implementation and tests..." rg --type go 'func GetOptOutsToFinish' # Test: Search for the implementation and tests for SetPendingOptOuts echo "Searching for SetPendingOptOuts implementation and tests..." rg --type go 'func SetPendingOptOuts' # Test: Search for the implementation and tests for DeleteOperatorOptOutFinishEpoch echo "Searching for DeleteOperatorOptOutFinishEpoch implementation and tests..." rg --type go 'func DeleteOperatorOptOutFinishEpoch' # Test: Search for the implementation and tests for ClearOptOutsToFinish echo "Searching for ClearOptOutsToFinish implementation and tests..." rg --type go 'func ClearOptOutsToFinish' # Test: Search for the implementation and tests for GetConsensusAddrsToPrune echo "Searching for GetConsensusAddrsToPrune implementation and tests..." rg --type go 'func GetConsensusAddrsToPrune' # Test: Search for the implementation and tests for SetPendingConsensusAddrs echo "Searching for SetPendingConsensusAddrs implementation and tests..." rg --type go 'func SetPendingConsensusAddrs' # Test: Search for the implementation and tests for ClearConsensusAddrsToPrune echo "Searching for ClearConsensusAddrsToPrune implementation and tests..." rg --type go 'func ClearConsensusAddrsToPrune'Length of output: 1459
Script:
#!/bin/bash # Description: Verify the implementation and test coverage for methods called in AfterEpochEnd. # Test: Search for the methods without the 'func' keyword to check for their presence in the codebase. # Search for MarkEpochEnd echo "Searching for MarkEpochEnd in the codebase..." rg --type go 'MarkEpochEnd' # Search for GetOptOutsToFinish echo "Searching for GetOptOutsToFinish in the codebase..." rg --type go 'GetOptOutsToFinish' # Search for SetPendingOptOuts echo "Searching for SetPendingOptOuts in the codebase..." rg --type go 'SetPendingOptOuts' # Search for DeleteOperatorOptOutFinishEpoch echo "Searching for DeleteOperatorOptOutFinishEpoch in the codebase..." rg --type go 'DeleteOperatorOptOutFinishEpoch' # Search for ClearOptOutsToFinish echo "Searching for ClearOptOutsToFinish in the codebase..." rg --type go 'ClearOptOutsToFinish' # Search for GetConsensusAddrsToPrune echo "Searching for GetConsensusAddrsToPrune in the codebase..." rg --type go 'GetConsensusAddrsToPrune' # Search for SetPendingConsensusAddrs echo "Searching for SetPendingConsensusAddrs in the codebase..." rg --type go 'SetPendingConsensusAddrs' # Search for ClearConsensusAddrsToPrune echo "Searching for ClearConsensusAddrsToPrune in the codebase..." rg --type go 'ClearConsensusAddrsToPrune'Length of output: 4004
x/dogfood/types/expected_keepers.go (2)
5-5: The import forepochsTypeshas been updated correctly to the newExocoreNetworknamespace. This change is essential for ensuring that all types are correctly referenced after the namespace transition.
Line range hint
1-44: The interfaces defined in this file, such asEpochsKeeper,DogfoodHooks, andOperatorKeeper, are well-documented and clearly specify the expected behavior of their respective implementations. This is crucial for maintainability and understanding the module's architecture.x/epochs/client/cli/query.go (2)
13-33: TheGetQueryCmdfunction sets up the root command for epoch queries. The use oftypes.ModuleNamefor dynamic command construction is a good practice, ensuring that the command adapts to changes in the module name.
76-108: TheGetCmdCurrentEpochcommand is correctly implemented with precise argument handling and error management. The use ofclientCtx.PrintProtofor output is consistent with modern Cosmos SDK practices.x/epochs/keeper/epoch_infos.go (4)
12-30: The methodAddEpochInfohandles adding new epoch information to the store. It includes checks for duplicate identifiers and initializes start times and start heights if they are not set. This logic appears robust and correctly implements the necessary validations and initializations for epoch data. The error handling and use of store operations are appropriate, ensuring data integrity and consistency.
33-46: TheGetEpochInfofunction retrieves epoch information based on an identifier. It correctly handles cases where the epoch does not exist by returningfalsefor thefoundflag. The use ofMustUnmarshalensures that the data integrity is maintained, throwing an error if the data cannot be unmarshalled into the expected structure.
58-81: TheIterateEpochInfosfunction efficiently iterates over all epoch information in the store, applying a provided function to each. This method is well-implemented, providing a flexible way to process all epochs. The use of a closure function as a parameter adds to the method's versatility.
83-91: TheAllEpochInfosmethod aggregates all epoch information into a slice. This method leverages theIterateEpochInfosfunction to collect all epochs, which is an efficient use of existing functionality. The implementation is straightforward and correctly handles the aggregation of data.
[APROVED]x/epochs/types/genesis_test.go (1)
22-121: TheTestValidateGenesisfunction in theGenesisTestSuitethoroughly tests various scenarios for the validation of genesis state, including handling of duplicate identifiers, blank identifiers, zero duration, and negative values for current epoch and start height. The use of a table-driven test structure enhances the clarity and maintainability of the test cases. Each test case is well-documented with expected outcomes, making it easy to understand the purpose of each test.x/epochs/keeper/abci.go (1)
13-104: TheBeginBlockerfunction handles the logic to start or end epochs based on the block time. It includes checks for the start and end of epochs and appropriately manages state transitions with detailed logging and event emissions. The use of telemetry and structured logging adds to the observability of the epoch transitions. The function is well-structured and contains comprehensive logic to handle various scenarios of epoch management.proto/exocore/epochs/v1/genesis.proto (2)
11-60: TheEpochInfomessage is well-documented and structured. It provides a comprehensive set of fields that are crucial for managing epoch information in a blockchain context. The use ofgogoprotooptions to handle Go-specific features likestdtimeandstddurationis appropriate and ensures that the protobuf fields are correctly handled in Go without additional transformation logic. This is crucial for both performance and correctness.
63-66: TheGenesisStatemessage definition is concise and clear. It appropriately uses therepeatedkeyword for theepochsfield to handle multipleEpochInfoinstances, which is essential for initializing the state of the epochs module during the genesis block of a blockchain.x/epochs/keeper/grpc_query_test.go (2)
11-81: The test cases inTestEpochInfosare well-constructed and cover a variety of scenarios, including a default case with all genesis epochs. The use of structured test cases with expected results ensures that any discrepancies in the epoch information retrieval can be caught during testing. This is crucial for maintaining the reliability of the epoch querying functionality.
[APROVED]
84-130: The test cases inTestCurrentEpochhandle different scenarios effectively, including edge cases like unknown or blank epoch identifiers. This thorough testing is important to ensure robust error handling and correct responses in the querying of current epoch information.x/epochs/keeper/abci_test.go (1)
20-100: The detailed comments and test scenarios provided in theTestEpochsIncreaseByOne,TestTwoEpochIncreases, andTestChainDowntimefunctions are excellent. They not only test the functionality but also explain the expected behavior and the conditions under which different tests are executed. This clarity in testing is crucial for ensuring the correct implementation of epoch transitions in response to blockchain time advancements.x/epochs/module.go (2)
32-90: TheAppModuleBasicstruct and its methods are well-implemented. Methods likeRegisterLegacyAminoCodec,RegisterInterfaces, andDefaultGenesisare crucial for module setup and integration within the larger Cosmos SDK framework. The use of a clear and concise coding style in these foundational methods facilitates easy maintenance and understanding of the module's basic functionalities.
109-170: TheAppModulestruct and its associated methods effectively encapsulate the functionalities related to block processing, genesis initialization, and state export. The clear separation of concerns and the detailed method implementations ensure that the module's operations are transparent and maintainable. The inclusion ofBeginBlockandEndBlockmethods aligns well with the Cosmos SDK's architecture, allowing for custom logic at the start and end of each block.go.mod (2)
34-34: Direct dependencies ongithub.com/spf13/pflag v1.0.5andgoogle.golang.org/protobuf v1.33.0have been added. Ensure these versions are compatible with other modules and meet the specific needs of the project.Also applies to: 44-44
Line range hint
34-44: Thereplacesection addresses various issues including security advisories and broken dependencies. Verify that each replacement aligns with the project's goals and resolves the issues effectively.
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Actionable comments posted: 1
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Files selected for processing (3)
- .semgrepignore (1 hunks)
- proto/exocore/epochs/v1/genesis.proto (1 hunks)
- x/epochs/README.md (1 hunks)
Files skipped from review due to trivial changes (1)
- .semgrepignore
Additional context used
LanguageTool
x/epochs/README.md
[grammar] ~44-~44: The word ‘begin’ is not a noun. Did you mean “beginning” or “start”? (PREPOSITION_VERB)
Context: ...logic, and are only modified during the begin blocker. ## Hooks ```go // the firs...
Additional comments not posted (4)
x/epochs/README.md (2)
44-44: Duplicate comment regarding grammatical correction.Tools
LanguageTool
[grammar] ~44-~44: The word ‘begin’ is not a noun. Did you mean “beginning” or “start”? (PREPOSITION_VERB)
Context: ...logic, and are only modified during the begin blocker. ## Hooks ```go // the firs...
36-36: Duplicate comment regarding Markdown style.proto/exocore/epochs/v1/genesis.proto (2)
11-60: TheEpochInfomessage is well-structured and clearly defines each field with appropriate protobuf options.
63-67: TheGenesisStatemessage is correctly defined to include a list of epochs, ensuring data integrity with the non-nullable option.
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Actionable comments posted: 4
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Files selected for processing (8)
- .semgrepignore (1 hunks)
- proto/exocore/epochs/v1/genesis.proto (1 hunks)
- x/dogfood/keeper/keeper.go (1 hunks)
- x/epochs/README.md (1 hunks)
- x/epochs/client/cli/query.go (1 hunks)
- x/epochs/keeper/epoch_infos_test.go (1 hunks)
- x/epochs/keeper/grpc_query.go (1 hunks)
- x/epochs/keeper/keeper.go (1 hunks)
Files skipped from review due to trivial changes (1)
- .semgrepignore
Additional context used
LanguageTool
x/epochs/README.md
[uncategorized] ~11-~11: You might be missing the article “the” here. (AI_EN_LECTOR_MISSING_DETERMINER_THE)
Context: ...ain code every-so often. The purpose ofepochsmodule is to allow other modules...
[grammar] ~44-~44: The word ‘begin’ is not a noun. Did you mean “beginning” or “start”? (PREPOSITION_VERB)
Context: ...logic, and are only modified during the begin blocker. ## Hooks ```go // the firs...
Additional comments not posted (7)
x/epochs/keeper/keeper.go (2)
40-50: LGTM! Using panic to enforce hook constraints ensures robustness in critical blockchain operations.
52-57: Well-implemented! Providing a default no-op implementation for hooks when none are set enhances safety and robustness.x/epochs/keeper/epoch_infos_test.go (1)
9-37: Excellent work on the test coverage for epoch information handling! Including both positive and negative scenarios provides a robust test suite.x/epochs/keeper/grpc_query.go (2)
18-51: Well-implemented GRPC method for epoch information retrieval. Proper use of pagination and detailed error messages enhance usability and debuggability.
53-72: Excellent error handling in theCurrentEpochquery method. Clear error messages aid in troubleshooting and ensure a good user experience.x/epochs/client/cli/query.go (1)
76-108: Well-designed CLI command for querying the current epoch. Detailed examples and robust error handling make it user-friendly and reliable.x/dogfood/keeper/keeper.go (1)
80-83: Ensure proper handling of nildogfoodHooks.This implementation correctly returns an empty
MultiDogfoodHookswhendogfoodHooksis nil, ensuring stability and preventing potential null pointer dereferences.
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
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- x/epochs/README.md (1 hunks)
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- x/epochs/README.md (Error: Server error. Please try again later.)
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Learnings (1)
x/epochs/README.md (1)
User: MaxMustermann2 PR: ExocoreNetwork/exocore#102 File: x/epochs/README.md:44-44 Timestamp: 2024-06-14T08:40:13.568Z Learning: The term "begin blocker" is a standard terminology within the Cosmos SDK, used to describe the beginning of block processing.
LanguageTool
x/epochs/README.md
[grammar] ~44-~44: The word ‘begin’ is not a noun. Did you mean “beginning” or “start”? (PREPOSITION_VERB)
Context: ...logic, and are only modified during the begin blocker. ## Hooks ```go // the firs...
| ), | ||
| ) | ||
| // NOTE: this hook is called BEFORE the new epoch info is saved. | ||
| k.Hooks().AfterEpochEnd(ctx, epochInfo.Identifier, epochInfo.CurrentEpoch) |
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In the previously imported implementation, the AfterEpochEnd function was called after incrementing the epochInfo.CurrentEpoch, resulting in the same epoch (bearing the increased number) ending and then starting immediately afterwards
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As a result of this bug, the effective opt-out completion epoch was reduced by 1.
For example, with the number of unbonding epochs set to 2, if an operator opts out during epoch 5, they will stop validating at the end of epoch 5 and complete the opt out at the end of epoch 7. This is accurately scheduled with or without the bug being present in the x/epochs module, because the currently running epoch number is accurately fetched during the time of opt out.
With the bug, however, the epoch reported in the AfterEpochEnd hook is 7 even though the epoch currently ending is 6. The hook then finds all the opt-outs completing at epoch 7 (instead of epoch 6) and schedules them to be removed at the end of the block.
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Of course, we can work around this bug by first decrementing the currentEpoch variable within each hook. But I felt that it's better to bring ownership of this code under our primary repository, given that a lot of our design depends on the epochs system.
MaxMustermann2
requested review from
bwhour,
cloud8little,
trestinlsd,
mikebraver,
TimmyExogenous and
leonz789
|
Query the epoch information with two successive command NOTE: the genesis_time is "2024-06-14T08:34:18.95676475Z" |
The returned block time can be used to determine whether any of the epochs are about to change.
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Files ignored due to path filters (1)
x/epochs/types/query.pb.gois excluded by!**/*.pb.go
Files selected for processing (3)
- proto/exocore/epochs/v1/query.proto (2 hunks)
- x/epochs/keeper/grpc_query.go (1 hunks)
- x/epochs/keeper/grpc_query_test.go (1 hunks)
Files skipped from review as they are similar to previous changes (1)
- x/epochs/keeper/grpc_query.go
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proto/exocore/epochs/v1/query.proto (2)
15-17: Updated endpoint URLs and comments enhance clarity and reflect the new package structure.Also applies to: 19-21
35-41: The modifications in the comments and structure fields are clear and align with the intended functionality of the query responses. The use of pagination and timestamp fields is appropriate for the context.Also applies to: 47-47
x/epochs/keeper/grpc_query_test.go (2)
12-92: The test case forEpochInfosis comprehensive, covering various scenarios including default genesis values and pagination. It correctly asserts the expected results, ensuring the functionality aligns with the specifications.
94-141: The test case forCurrentEpochadequately handles different scenarios, including error cases for unknown and blank identifiers, and a success case for a known identifier. This ensures robust error handling and correct functionality.
Given that is the case, this behavior is expected. It is the same functionality as the one implemented in the Cosmos SDK and the previously imported module. The current epoch, given any identifier, indicates the number of periods of that epoch since the epoch counting start time (which defaults to the genesis time, if not set). For example, if the day epoch is reported as 3, it means that the 3rd day (since counting started) is ongoing. However, the number is incremented only once during a block. This is an intentional design, since doing otherwise would result in epochs being skipped. This is the cause for the deviation that you observed. Starting a chain with a genesis time in the past causes each produced block to increase the current epoch number by 1 until the epoch's scheduled end time (= current start time + duration) < block time. In the provided example, the chain's genesis time was 2 days, 19 hours, 32 minutes and ~16 seconds ago. The start_time for each epoch is set to the genesis time. Since the start_time, the 3rd day has started, which is accurately reflected in your query. The minute, however, is increasing by 1 at each block. 4052.3 minutes have completed between the genesis time and now, so it will increase till 4053 blocks (+ some extra for the time it takes for block production to get there) and then continue on its regular minute-wise schedule. The comments in the code describe this detail as well. |
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Learnings (1)
x/epochs/keeper/abci.go (1)
User: MaxMustermann2 PR: ExocoreNetwork/exocore#102 File: x/epochs/README.md:44-44 Timestamp: 2024-06-14T08:40:13.568Z Learning: The term "begin blocker" is a standard terminology within the Cosmos SDK, used to describe the beginning of block processing.
Additional comments not posted (5)
x/epochs/keeper/epoch_infos.go (4)
8-32: TheAddEpochInfofunction is well-implemented with appropriate validations and checks for duplicates before adding new epoch information.
34-47: TheGetEpochInfofunction correctly implements the logic to retrieve epoch information based on an identifier, including handling cases where the information does not exist.
59-82: TheIterateEpochInfosfunction correctly implements the iteration over all epoch information, managing the iterator lifecycle properly.
84-92: TheAllEpochInfosfunction is efficiently implemented, leveraging theIterateEpochInfosfunction to gather all epoch information.x/epochs/keeper/abci.go (1)
13-113: TheBeginBlockerfunction is well-structured and effectively handles the logic of starting or ending epochs based on the current block time and epoch configurations. It uses telemetry to monitor performance and logs significant actions, enhancing maintainability and observability.
Example usage: act --workflows .github/workflows/super-linter.yml pull_request
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SAFU.pdfis excluded by!**/*.pdfx/epochs/types/genesis.pb.gois excluded by!**/*.pb.gox/epochs/types/query.pb.gois excluded by!**/*.pb.gox/epochs/types/query.pb.gw.gois excluded by!**/*.pb.gw.go
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- x/epochs/types/codec.go (1 hunks)
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- x/epochs/types/events.go (1 hunks)
- x/epochs/types/genesis.go (1 hunks)
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- x/epochs/types/hooks.go (1 hunks)
- x/epochs/types/identifier.go (1 hunks)
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- .github/workflows/proto.yml
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- app/app.go
- local_node.sh
- x/dogfood/types/params.go
- x/epochs/types/events.go
Additional context used
Learnings (4)
x/epochs/client/cli/query.go (1)
User: MaxMustermann2 PR: ExocoreNetwork/exocore#102 File: x/epochs/client/cli/query.go:35-73 Timestamp: 2024-06-14T08:37:38.019Z Learning: `PrintProtoLegacy` was replaced with `PrintProto` in the `x/epochs/client/cli/query.go` as part of aligning with newer SDK standards, and this change has been confirmed and approved by MaxMustermann2.x/epochs/README.md (1)
User: MaxMustermann2 PR: ExocoreNetwork/exocore#102 File: x/epochs/README.md:44-44 Timestamp: 2024-06-14T08:40:13.568Z Learning: The term "begin blocker" is a standard terminology within the Cosmos SDK, used to describe the beginning of block processing.proto/exocore/epochs/v1/genesis.proto (1)
User: MaxMustermann2 PR: ExocoreNetwork/exocore#102 File: proto/exocore/epochs/v1/genesis.proto:19-19 Timestamp: 2024-06-14T08:45:34.340Z Learning: In protobuf files, a field declaration line can continue beyond one line if it includes additional options, and the semicolon appears at the end of the complete declaration.x/epochs/keeper/abci.go (1)
User: MaxMustermann2 PR: ExocoreNetwork/exocore#102 File: x/epochs/README.md:44-44 Timestamp: 2024-06-14T08:40:13.568Z Learning: The term "begin blocker" is a standard terminology within the Cosmos SDK, used to describe the beginning of block processing.
LanguageTool
x/epochs/README.md
[grammar] ~44-~44: The word ‘begin’ is not a noun. Did you mean “beginning” or “start”?
Context: ...logic, and are only modified during the begin blocker. ## Hooks ```go // the firs...(PREPOSITION_VERB)
Additional comments not posted (62)
x/epochs/types/codec.go (3)
8-9: Implement or document the purpose ofRegisterCodec.This function is currently empty. Depending on your architecture, either implement its intended functionality or provide documentation explaining why it's left empty.
11-12: Implement or document the purpose ofRegisterInterfaces.Similar to
RegisterCodec, this function is also empty. It's crucial to either implement the necessary functionality or document its purpose clearly.
15-16: Variable declarations are standard and correct.x/epochs/keeper/utils_test.go (1)
9-15: Proper setup for testing environment.The
PostSetupfunction correctly sets up query helpers, which is essential for testing the keeper functionalities. This setup follows best practices for modular and maintainable test code.x/epochs/types/errors.go (1)
15-20: Proper definition of custom errors.The custom error types
ErrInvalidGenesisDataandErrDuplicateEpochInfoare well-defined and correctly registered, making error handling more descriptive and traceable.x/epochs/types/keys.go (1)
16-22: Correct implementation of key management functionalities.
KeyEpochfunction andKeyPrefixEpochconstant are implemented correctly, ensuring efficient and error-free data retrieval from the store.x/epochs/keeper/genesis.go (1)
10-24: Correct handling of genesis state.The
InitGenesisandExportGenesisfunctions are implemented correctly, ensuring proper module initialization and state export, which are essential for the module's lifecycle management.x/epochs/keeper/setup_test.go (2)
14-17: Code Review: Struct Definition for KeeperTestSuiteThe struct
KeeperTestSuiteinherits fromtestutil.BaseTestSuiteand includes aqueryClientof typetypes.QueryClient. This struct is well-defined for its purpose, encapsulating the necessary components for testing the Keeper functionalities.
24-35: Code Review: SetupTest MethodThe
SetupTestmethod initializes test conditions for Keeper functionalities. It correctly retrieves and validates epoch information for various identifiers. This setup ensures that each epoch is properly initialized before tests run, which is crucial for the integrity of subsequent tests.x/epochs/simulation/genesis.go (3)
15-18: Code Review: Function GenDurationThe function
GenDurationgenerates a random duration between 1 hour and 1 week. It effectively uses therandpackage to ensure variability in simulation tests. This function is well-implemented for its intended use in testing.
20-31: Code Review: Function RandomizedEpochsThis function generates a list of randomized epoch configurations for testing. It correctly uses
GenDurationto ensure varied epoch durations. This implementation aids in creating diverse test scenarios, which is essential for robust simulation testing.
33-46: Code Review: Function RandomizedGenStateThe function
RandomizedGenStateeffectively integrates the randomized epochs into the simulation state. It properly handles JSON marshaling and error scenarios. This function is crucial for setting up initial states in simulations and is implemented correctly.x/epochs/types/hooks.go (2)
7-12: Code Review: EpochHooks InterfaceThe
EpochHooksinterface is well-defined, covering methods for handling events at the start and end of epochs. This interface is crucial for extending functionality via hooks, allowing custom actions at epoch boundaries.
16-37: Code Review: MultiEpochHooks Type and MethodsThe
MultiEpochHookstype allows combining multiple hook implementations. The methodsAfterEpochEndandBeforeEpochStartare implemented to iterate over all hooks, ensuring that all registered hooks are executed. This design promotes modularity and extensibility in handling epoch events.x/epochs/types/identifier.go (2)
8-17: Code Review: Constants for Epoch IdentifiersThe constants defined for various epoch durations (day, hour, minute, week) are clear and appropriately named. These identifiers are essential for referencing specific epochs throughout the codebase.
19-43: Code Review: Epoch Identifier Validation FunctionsThe functions
ValidateEpochIdentifierInterfaceandValidateEpochIdentifierStringare well-implemented to ensure that epoch identifiers are correctly formatted. These validation mechanisms are crucial for maintaining data integrity across the system.x/epochs/keeper/keeper.go (3)
22-32: Code Review: NewKeeper FunctionThe
NewKeeperfunction is correctly implemented to initialize theKeeperstruct. It ensures that all necessary components are set up for managing epochs. This function adheres to best practices in Go for struct initialization.
35-38: Code Review: Logger MethodThe
Loggermethod provides a logging interface specifically configured for the epochs module. This method correctly utilizes the Cosmos SDK's logging facilities, enhancing the debuggability of the module.
40-58: Code Review: SetHooks and Hooks MethodsThe
SetHooksmethod correctly handles setting hooks with appropriate error checks, preventing multiple initializations and nil assignments. TheHooksmethod provides a safe way to retrieve hooks, using lazy initialization to return a default if none are set. These implementations ensure robustness and flexibility in the module's hook management.x/epochs/keeper/epoch_infos_test.go (1)
9-37: Comprehensive testing of epoch information addition and retrieval.The test method
TestEpochInfoAdditioneffectively checks various aspects of epoch information management. The addition of the negative test case for non-existent epoch info retrieval, as suggested in the previous review, has been correctly implemented. This enhances the robustness of the test suite.x/epochs/keeper/grpc_query.go (2)
19-45: Enhanced error handling in gRPC queries.The error message enhancement in the
EpochInfosmethod improves debugging capabilities and provides more context when errors occur during pagination. This change, as suggested in a previous review, has been implemented correctly.
54-73: Proper error handling for non-existent epoch queries.The
CurrentEpochmethod correctly handles cases where the requested epoch does not exist, returning an appropriate error message. This is crucial for robustness and user experience in production environments.proto/exocore/epochs/v1/query.proto (2)
3-21: Well-defined gRPC service for epoch queries.The
Queryservice and its methodsEpochInfosandCurrentEpochare clearly defined, with appropriate HTTP GET paths and pagination support. This setup ensures that the API is both functional and user-friendly.
35-41: Clear and precise message definitions for epoch queries.The
QueryEpochsInfoResponsemessage includes well-defined fields with appropriate annotations for handling null values and time formats, which is crucial for data integrity and ease of use in client applications.x/epochs/types/genesis.go (2)
10-40: Robust genesis state management and validation.The functions for managing the genesis state, including
DefaultGenesisandValidate, are well-implemented. The validation logic is comprehensive, ensuring that all epochs are unique and correctly configured.
42-58: Effective validation logic for individual epoch information.The
Validatemethod forEpochInfoincludes thorough checks for the identifier, duration, and epoch start conditions. This ensures that the epoch data is always valid and prevents potential runtime errors.x/dogfood/keeper/impl_epochs_hooks.go (2)
Line range hint
1-50: Well-implemented epoch hooks with detailed state management.The
AfterEpochEndmethod inEpochsHooksWrappereffectively handles various state transitions at the epoch end, such as updating opt-outs and pruning consensus addresses. This method ensures that state changes are correctly applied at the correct times, enhancing the robustness of the system.
Line range hint
52-58: Placeholder implementation forBeforeEpochStart.The
BeforeEpochStartmethod is currently a no-op. If future requirements specify actions to be taken before an epoch starts, this method will need to be implemented accordingly.Consider adding a comment or a TODO note to indicate potential future implementations or enhancements.
x/epochs/client/cli/query.go (3)
16-33: Review ofGetQueryCmdFunction:The
GetQueryCmdfunction is well-structured and follows best practices by dynamically building the command structure and adding sub-commands. The use ofclient.ValidateCmdensures that the command validation is delegated to a standard handler, which is good for consistency.
35-73: Review ofGetCmdEpochsInfosFunction:This function constructs the command for querying all epoch information. It uses pagination and error handling correctly. The change from
PrintProtoLegacytoPrintProtoaligns with newer SDK standards and has been previously approved.
76-109: Review ofGetCmdCurrentEpochFunction:The
GetCmdCurrentEpochcommand is implemented correctly, with appropriate error handling and use ofPrintProtofor output. The command structure is clear, and the use of exact argument matching (cobra.ExactArgs(1)) is appropriate for the command's purpose.x/epochs/keeper/epoch_infos.go (4)
8-32: Review ofAddEpochInfoFunction:The
AddEpochInfofunction correctly validates the epoch information before adding it to the store, which prevents corrupt or invalid data from being saved. The checks for existing epoch identifiers and the setting of default values for unset fields are correctly implemented. This function follows best practices for error handling and data integrity.
34-47: Review ofGetEpochInfoFunction:This function retrieves epoch information based on an identifier. The use of the store's
Getmethod and the handling of non-existent entries are correctly implemented. The function is straightforward and follows best practices for data retrieval.
49-57: Review ofsetEpochInfoUncheckedMethod:The method directly sets epoch information in the store without validation, as noted in the previous comments. The existing documentation clearly states that the caller must ensure data validity, which is a reasonable approach given this method's internal use. No further action is needed here since the context in which this method is used is controlled.
59-92: Review of Iteration Functions:The
IterateEpochInfosandAllEpochInfosfunctions are implemented to iterate through all epoch information stored. They use the standard Cosmos SDK iteration patterns and correctly handle the unmarshalling of data. These functions are essential for data access patterns in the keeper and are implemented correctly.x/dogfood/types/expected_keepers.go (1)
Line range hint
1-47: Review of Keeper Interfaces:The interfaces defined in this file (
EpochsKeeper,DogfoodHooks,OperatorKeeper,DelegationKeeper,AssetsKeeper) provide a clear contract for the functionality expected from the corresponding keeper implementations. These interfaces are essential for modular design and ensure that the dogfood module can interact with other modules securely and predictably.x/epochs/types/genesis_test.go (1)
11-121: Review of Genesis State Validation Tests:The test suite
GenesisTestSuiteeffectively covers various scenarios for validating the genesis state of the epochs module. The tests check for unique epoch identifiers, non-empty identifiers, valid epoch durations, and non-negative values for epoch numbers and start heights. These tests are well-structured and provide comprehensive coverage of the genesis state validation logic.x/dogfood/keeper/keeper.go (1)
Line range hint
1-83: Review of Dogfood Keeper Implementation:The
Keeperstruct in this file is well-designed, encapsulating all necessary dependencies and providing methods to interact with these dependencies. The use of panic for error handling in theSetHooksmethod is appropriate given the context (initialization phase). The methods for marking and checking epoch ends are implemented correctly and follow best practices for state management within the Cosmos SDK framework.x/epochs/README.md (3)
1-1: Document Title FormattingConsider using a more descriptive title for the README to enhance clarity and SEO.
- # Epochs + # Exocore Epochs Module Overview
5-7: External Link FormattingEnsure that the Markdown link is correctly formatted without unnecessary spaces to ensure it works as expected.
- from Osmosis. Much of the documentation below is sourced from the [README in that pull request.]( https://github.com/cosmos/cosmos-sdk/blob/8b171c5a4300fb3287ab591b5e6cf221019ddb07/x/epochs/README.md) + from Osmosis. Much of the documentation below is sourced from the [README in that pull request.](https://github.com/cosmos/cosmos-sdk/blob/8b171c5a4300fb3287ab591b5e6cf221019ddb07/x/epochs/README.md)
44-44: Use of 'Begin Blocker'The term "begin blocker" is accurately used here as per the Cosmos SDK terminology.
Tools
LanguageTool
[grammar] ~44-~44: The word ‘begin’ is not a noun. Did you mean “beginning” or “start”?
Context: ...logic, and are only modified during the begin blocker. ## Hooks ```go // the firs...(PREPOSITION_VERB)
proto/exocore/epochs/v1/genesis.proto (1)
19-20: Field Options FormattingThe field options for
start_timeare correctly formatted and the continuation onto the next line is appropriate as per protobuf standards.x/epochs/keeper/abci.go (1)
15-113: Comprehensive Epoch Management LogicThe
BeginBlockerfunction is well-implemented with clear logic for handling epoch starts and ends based on block times. The use of telemetry and logging is appropriate, and the handling of first ticks and epoch transitions is robust.x/epochs/keeper/grpc_query_test.go (1)
12-92: Comprehensive Testing of Epoch QueriesThe test cases for querying epoch information are thoroughly implemented, covering various scenarios and ensuring the integrity of epoch data. The use of the
KeeperTestSuiteto maintain test isolation is commendable.x/epochs/keeper/abci_test.go (1)
20-100: Epoch Transition Testing with Chain DowntimeThe test cases effectively simulate various scenarios including chain downtime, ensuring that the epoch logic handles time jumps and block intervals correctly. This robust testing is crucial for the reliability of the epoch management system.
x/epochs/module.go (14)
32-40: Initialization of AppModuleBasic looks correct.The constructor
NewAppModuleBasiccorrectly initializes theAppModuleBasicwith a codec, which is essential for data serialization and deserialization in Cosmos SDK modules.
47-51: Legacy Amino Codec Registration is correctly implemented.The method
RegisterLegacyAminoCodecuses theRegisterCodecfunction from thetypespackage to register necessary types for the Amino codec. This ensures backward compatibility with Cosmos SDK's legacy encoding system.
53-57: Interface registration is implemented correctly.
RegisterInterfacesmethod properly registers module's concrete types asproto.Message, which is crucial for gRPC and other inter-module communication.
59-64: Default genesis state provision is properly implemented.
DefaultGenesismethod correctly provides a marshaled default genesis state, which is essential for module initialization and tests.
66-76: Genesis state validation method is implemented with proper error handling.The
ValidateGenesismethod correctly unmarshals the genesis state and validates it, providing detailed error information if the unmarshaling fails. This is crucial for ensuring the integrity of the genesis state at startup.
79-90: Proper error handling in gRPC Gateway route registration.The method
RegisterGRPCGatewayRoutescorrectly handles potential errors during the registration process by panicking, which is acceptable here since a failure to register routes is a critical startup error.
92-103: Query command setup is correctly implemented.The
GetQueryCmdmethod correctly sets up the root query command for the module, enabling end-users to perform state queries defined by the module.
109-125: AppModule initialization is correctly implemented.The
NewAppModuleconstructor correctly sets up theAppModulewith both a codec and a keeper, ensuring that all necessary dependencies are provided for the module's operations.
127-130: Service registration is correctly implemented.The
RegisterServicesmethod correctly registers a gRPC query service, allowing the module to respond to specific gRPC queries.
138-148: Genesis initialization logic is properly implemented.
InitGenesismethod correctly handles the genesis state initialization, ensuring that the module's state is set up according to the provided genesis data.
151-155: Genesis state export functionality is correctly implemented.
ExportGenesismethod correctly serializes the module's state into a genesis format, ensuring that the state can be exported and reused, for instance, during blockchain upgrades.
157-160: Module versioning is handled correctly.The
ConsensusVersionmethod correctly provides a version number for the module, which is important for handling state-breaking changes.
162-165: BeginBlock logic is correctly implemented.The
BeginBlockmethod correctly triggers theBeginBlockerlogic of the keeper, which is essential for processing beginning-of-block actions like updating epoch states.
167-170: EndBlock logic is correctly implemented.The
EndBlockmethod correctly handles the logic that needs to be triggered at the end of each block, ensuring that any necessary updates or checks are performed.testutil/utils.go (3)
67-68: Initialization of InitTime in the test suite is appropriate.Adding
InitTimetoBaseTestSuiteallows for better control and testing of time-dependent features in the blockchain environment.
Line range hint
76-305: Comprehensive test setup function is well-implemented.The
SetupWithGenesisValSetfunction is well-structured and covers a wide range of initializations, from setting up genesis accounts to configuring modules like assets, oracle, and operators. This thorough setup is crucial for conducting meaningful and comprehensive tests.
387-401: Block transition utility functions are correctly implemented.Functions
NextBlock,Commit, andCommitAfterprovide essential utilities for moving the test blockchain through different states, allowing for the testing of block-by-block transitions and state changes.
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Test object: 3cda16e Results for minute epoch Associated logs |
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Files selected for processing (9)
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- app/app.go
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- local_node.sh
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Additional context used
Learnings (1)
x/epochs/keeper/abci.go (1)
Learnt from: MaxMustermann2 PR: ExocoreNetwork/exocore#102 File: x/epochs/README.md:44-44 Timestamp: 2024-06-14T08:40:13.568Z Learning: The term "begin blocker" is a standard terminology within the Cosmos SDK, used to describe the beginning of block processing.
Additional comments not posted (9)
x/avs/types/expected_keepers.go (1)
4-4: LGTM! Import path change is correct.The import path for epochs types has been updated to
github.com/ExocoreNetwork/exocore/x/epochs/types, which aligns with the PR objectives.x/epochs/keeper/epoch_infos.go (5)
9-33: LGTM! The function is well-structured.The
AddEpochInfofunction appropriately validates the epoch information, checks for duplicates, and sets the start time and height if not provided.
35-47: LGTM! The function is correctly implemented.The
GetEpochInfofunction correctly retrieves epoch information from the store and handles the unmarshalling process.
49-56: LGTM! Ensure safe usage contexts.The
setEpochInfoUncheckedfunction is correctly implemented. Ensure that it is only called in contexts where data integrity is guaranteed, as indicated by the comments.
58-81: LGTM! The function is correctly implemented.The
IterateEpochInfosfunction correctly iterates through all epoch information in the store, with proper handling of the store and iterator.
83-91: LGTM! The function is correctly implemented.The
AllEpochInfosfunction correctly gathers all epoch information by utilizing theIterateEpochInfosfunction.x/epochs/keeper/abci.go (1)
13-124: LGTM! The function is well-structured.The
BeginBlockerfunction appropriately handles the start and end of epochs, with proper validation, logging, event emission, and hook calls.precompiles/avsTask/task_test.go (1)
9-9: LGTM! Import path change is correct.The import path for epochs types has been updated to
github.com/ExocoreNetwork/exocore/x/epochs/types, which aligns with the PR objectives.x/avs/keeper/avs_test.go (1)
8-8: Import path update is correct.The import path change for
epochstypesis consistent with the backporting of the epochs module to Exocore.
This PR is a backport of the Cosmos SDK's epochs module. The backport allows us the flexibility to define our own epochs as default epochs and fixes a bug wherein the first epoch in the hook was always 2.
Summary by CodeRabbit
New Features
epochsmodule.Bug Fixes
epochspackage across multiple files.Documentation
x/epochs/README.mdto reflect new functionalities and changes.Refactor
Tests
Chores
.semgrepignorefor specific simulation directories.