Module prelude

Re-exports

• pub use crate::arrow::reader::scan_df_parquet;
• pub use crate::arrow::writer::save_df_parquet;
• pub use crate::cli::Command;
• pub use crate::io::ext::LengthRead;
• pub use crate::io::file_size;
• pub use crate::io::path_list;
• pub use crate::io::DataSink;
• pub use crate::io::LineProcessor;
• pub use crate::io::ObjectWriter;
• pub use crate::util::default;
• pub use crate::util::Timer;
• pub use crate::layout::*;

Macros

• anyhow
  Construct an ad-hoc error from a string or existing non-anyhow error value.
• debug
  Logs a message at the debug level.
• error
  Logs a message at the error level.
• info
  Logs a message at the info level.
• log
  The standard logging macro.
• log_enabled
  Determines if a message logged at the specified level in that module will be logged.
• trace
  Logs a message at the trace level.
• warn
  Logs a message at the warn level.

Structs

• Metadata
  Metadata about a log message.
• MetadataBuilder
  Builder for Metadata.
• ParseLevelError
  The type returned by from_str when the string doesn’t match any of the log levels.
• Path
  A slice of a path (akin to str).
• PathBuf
  An owned, mutable path (akin to String).
• Record
  The “payload” of a log message.
• RecordBuilder
  Builder for Record.
• SetLoggerError
  The type returned by set_logger if set_logger has already been called.

Enums

• Cow
  A clone-on-write smart pointer.
• Level
  An enum representing the available verbosity levels of the logger.
• LevelFilter
  An enum representing the available verbosity level filters of the logger.

Constants

• STATIC_MAX_LEVEL
  The statically resolved maximum log level.

Traits

• Args
  Parse a set of arguments into a user-defined container.
• FallibleIterator
  An Iterator-like trait that allows for calculation of items to fail.
• Log
  A trait encapsulating the operations required of a logger.

Functions

• logger
  Returns a reference to the logger.
• max_level
  Returns the current maximum log level.
• set_boxed_logger
  Sets the global logger to a Box<Log>.
• set_logger
  Sets the global logger to a &'static Log.
• set_logger_racy^⚠
  A thread-unsafe version of set_logger.
• set_max_level
  Sets the global maximum log level.
• set_max_level_racy^⚠
  A thread-unsafe version of set_max_level.

Type Aliases

• Result
  Result<T, Error>

Derive Macros

• Args
  Generates the Args impl.