Logian

Logian is a log format code generator (implemented in rust).

Releases, see Release page.

Commands

logian command generates files:

• log schema
• default log schema
• user-defined type
• log output code

# Note: a type name with `?` means nullable.

# Generate log schema directory
$ logian init --log-label=log_type --schema_dir=./schemas

# Generate a log schema.
$ logian generate log log_name column1:string column2:integer? --schema_dir=./schemas

# Generate a default log schema.
# A default log schema adds column to front and back for all logs.
$ logian generate default-log --front "front_column1:string, front_column2:integer"  --back "back_column1:string, front_column2:integer" --schema_dir=./schemas

# Generate a user-defined type.
$ logian generate type type_name column1:string column2:integer --schema_dir=./schemas

# Generate rust code.
$ logian output rust ./output_dir --schema-dir=./schemas

For details about options, see logian --help command.

Types

Logian supports primitive types, user-defined types and type attributes.

Primitive Types

• string
• integer
• float
• boolean
• datetime
• timestamp

Type Attributes

• nullable

User-defined types

Limitation: a user-defined type doesn't includes a user-defined type.

Template plugins

Default plugins

• rust

Custom plugins

• TBA