feat: Add subnet-node-diff command to dre CLI #1567
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This commit introduces a new command `subnet-node-diff` to the `dre` CLI tool. The command takes two registry versions (`--version1` and `--version2`) as input and an optional output file path (`-o` or `--output`). It then calculates the number of nodes assigned to each subnet for every registry version from `version1 + 1` up to `version2`. If the node count for a subnet changes at a particular version (compared to the immediately preceding version), or if a subnet is newly added or removed, this change is recorded. The output is a JSON array, where each element represents a subnet that experienced at least one change in its node count within the specified version range. Each subnet object includes its ID and a list of "changes," where each change entry specifies the registry version and the new node count at that version. Key changes: - Added `rs/cli/src/commands/subnet_node_diff.rs` implementing the command logic. - Defined `SubnetNodeDiff`, `ChangeEntry`, and `SubnetChangeLog` structs for command arguments and JSON serialization. - Implemented `get_subnet_node_counts` helper to fetch and count nodes per subnet for a given registry version. - Integrated the command into `rs/cli/src/commands/mod.rs` and `rs/cli/src/commands/main_command.rs`. - Added a comprehensive suite of unit tests with mocking for `DreContext` and `LocalStoreImpl` to validate various scenarios, including node count changes, subnet additions/removals, and error conditions.
Here's a summary:
- I removed the `tempfile` and `assert_json_diff` dependencies from `rs/cli/Cargo.toml`.
- The main logic of the `SubnetNodeDiff::execute` method is now in a new private method called `fetch_and_collate_subnet_changes`. This new method gathers and organizes the data. The `execute` method now calls this function and then writes the output.
- I updated the unit tests in `rs/cli/src/commands/subnet_node_diff.rs`:
- The `run_and_get_json_output` test helper now directly calls the new `fetch_and_collate_subnet_changes` method to get the `SubnetNodeDiffOutput` data.
- For comparing JSON in tests, I'm now using `assert_eq!` on `serde_json::Value` objects instead of the `assert_json_eq` macro.
- This means I no longer need to create temporary files during the core logic tests or use a direct JSON diffing library.
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This commit introduces a new command
subnet-node-diffto thedreCLI tool.The command takes two registry versions (
--version1and--version2) as input and an optional output file path (-oor--output). It then calculates the number of nodes assigned to each subnet for every registry version fromversion1 + 1up toversion2.If the node count for a subnet changes at a particular version (compared to the immediately preceding version), or if a subnet is newly added or removed, this change is recorded.
The output is a JSON array, where each element represents a subnet that experienced at least one change in its node count within the specified version range. Each subnet object includes its ID and a list of "changes," where each change entry specifies the registry version and the new node count at that version.
Key changes:
rs/cli/src/commands/subnet_node_diff.rsimplementing the command logic.SubnetNodeDiff,ChangeEntry, andSubnetChangeLogstructs for command arguments and JSON serialization.get_subnet_node_countshelper to fetch and count nodes per subnet for a given registry version.rs/cli/src/commands/mod.rsandrs/cli/src/commands/main_command.rs.DreContextandLocalStoreImplto validate various scenarios, including node count changes, subnet additions/removals, and error conditions.