protolint alignment plugin  

The alignment_rule plugin is a custom rule for Protolint that helps ensure consistent formatting in your Protocol Buffer (.proto) files. It focuses on aligning elements like fields, enums, and messages to improve readability and maintainability.

Why use alignment_rule?

• Consistent Formatting: Ensures elements in your .proto files are properly aligned, making the code easier to read and understand.
• Fix Mode Support: Automatically corrects alignment issues, saving you time on manual adjustments.
• Customizable Severity: Set the rule's strictness level to match your team's coding standards.
• Seamless Integration: Works as part of Protolint, fitting naturally into your linting workflow.
• Team Collaboration: Helps maintain a uniform style across your .proto files, reducing inconsistencies in team projects.

Examples

before:

syntax     = "proto3";

message outer {
    option (my_option).a = true;
    message inner {
        int64 ival = 1;
    }
    repeated inner inner_message = 2;
    EnumAllowingAlias enum_field = 3;
    map<int32, string> my_map = 4;

    enum enumAllowingAlias {
        option allow_alias = true;
        UNKNOWN = 0;
        STARTED   = 1;
        RUNNING  = 2 [(custom_option) = "hello world"];
    }
}

after:

syntax = "proto3";

message outer {
    option (my_option).a = true;
    message inner {
        int64 ival = 1;
    }
    repeated inner inner_message = 2;
    EnumAllowingAlias enum_field = 3;
    map<int32, string> my_map    = 4;

    enum enumAllowingAlias {
        option allow_alias = true;
        UNKNOWN            = 0;
        STARTED            = 1;
        RUNNING            = 2 [(custom_option) = "hello world"];
    }
}