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@colinlyguo colinlyguo commented May 12, 2025

Purpose or design rationale of this PR

For v7 batches, uncompressed cases are resolved. This PR removes the uncompressed case checks and only keeps sanity checks. If sanity check fails, the circuit needs manual fix, and rollup-relayer can still commit uncompressed data.

Some unit tests related to fallback to uncompressed mode are removed in this PR as well.

PR title

Your PR title must follow conventional commits (as we are doing squash merge for each PR), so it must start with one of the following types:

  • fix: A bug fix

Breaking change label

Does this PR have the breaking-change label?

  • No, this PR is not a breaking change

Summary by CodeRabbit

  • Bug Fixes
    • Improved compatibility checks for compressed data in version 7, ensuring more accurate validation and error handling.
    • Enabled consistent compatibility verification for both single chunks and batches of compressed data.
  • Tests
    • Removed outdated test cases related to compressible blob sizes for version 7 compression.

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coderabbitai bot commented May 12, 2025

## Walkthrough

A new function, `checkCompressedDataCompatibilityV7`, was introduced to perform compatibility checks specific to version 7 of the compression format. The `DACodecV7` struct now uses this new function instead of the generic compatibility checker. The `checkCompressedDataCompatibility` method gained a `checkLength` flag to control length-based compression validation. The previously unimplemented `CheckChunkCompressedDataCompatibility` was implemented by delegating to batch compatibility checks. Related test cases involving repeated byte patterns were removed from the test suite.

## Changes

| File(s)                   | Change Summary                                                                                                   |
|---------------------------|------------------------------------------------------------------------------------------------------------------|
| encoding/da.go            | Added `checkCompressedDataCompatibilityV7` for v7-specific compressed data compatibility checks; updated existing compatibility check to ensure last block marker is set. |
| encoding/codecv7.go       | Modified `checkCompressedDataCompatibility` to accept `checkLength` flag and use v7-specific checker; implemented `CheckChunkCompressedDataCompatibility` by delegating to batch check; updated method signatures accordingly. |
| encoding/codecv7_test.go  | Removed `repeat` helper and associated repeated byte pattern test cases; updated calls to `checkCompressedDataCompatibility` with new `checkLength` argument. |

## Sequence Diagram(s)

```mermaid
sequenceDiagram
    participant User
    participant DACodecV7
    participant checkCompressedDataCompatibilityV7

    User->>DACodecV7: Call checkCompressedDataCompatibility(payloadBytes, checkLength)
    DACodecV7->>checkCompressedDataCompatibilityV7: Validate compressed data format
    checkCompressedDataCompatibilityV7-->>DACodecV7: Return error or success
    DACodecV7->>DACodecV7: If checkLength true, compare compressed vs original length
    DACodecV7-->>User: Return compatibility status and possibly compressed data

Possibly related PRs

Suggested reviewers

  • Thegaram

Poem

In the warren of code, a new path is spun,
V7 checks now swiftly run.
Old tests retire, their bytes at rest,
While new functions handle the quest.
With headers and blocks now clearly in sight,
The rabbit hops on, making sure all is right! 🐇


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<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between 750488ce7dfdca6036f82a2d430fa13fabba6e84 and feb63c9ee30a92f5f539603fb5c0d275ea290cb3.

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<summary>📒 Files selected for processing (2)</summary>

* `encoding/codecv7.go` (5 hunks)
* `encoding/da.go` (1 hunks)

</details>

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<summary>🚧 Files skipped from review as they are similar to previous changes (2)</summary>

* encoding/da.go
* encoding/codecv7.go

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<summary>⏰ Context from checks skipped due to timeout of 90000ms (1)</summary>

* GitHub Check: tests

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noel2004
noel2004 previously approved these changes May 12, 2025
@colinlyguo colinlyguo requested a review from noel2004 May 15, 2025 07:05
noel2004
noel2004 previously approved these changes May 15, 2025
@colinlyguo colinlyguo merged commit bfa7133 into main May 19, 2025
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@coderabbitai coderabbitai bot mentioned this pull request Oct 3, 2025
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