Merger

Tool for appending CSV files

TODO: Tool for combining CSV files with different headers (first line) into a single CSV file.

Commands

To learn how to use this tool, you can rely upon the feedback and examples offered by the CLI.

$ go build
$ merger                          
Merger is a tool for combining CSV files with different
headers (first line) into a single CSV file.

Usage:
  merger [command]

Available Commands:
  completion  Generate the autocompletion script for the specified shell
  csv         Combine CSV files
  help        Help about any command

Flags:
  -h, --help      help for merger
  -v, --version   version for merger

Use "merger [command] --help" for more information about a command.

Negate Option

When merging CSV files, you can specify columns whose negative values should be converted to positive values using the --negate or -n flag. This is useful when dealing with financial data where debits might be represented as negative values but you want them as positive.

# Convert negative values in the Amount column to positive
merger csv transactions.csv -c config.csv -n Amount

# Convert negative values in multiple columns
merger csv transactions.csv -c config.csv -n Amount,Balance

Note: The --negate flag must be used with either -c (config) or -i (interactive) mode.

Logging

Logging output has the following configuration options.

Environment Variable	Options
LOG_LEVEL	debug, info, error (default)
LOG_FORMAT	json, text (default)
LOG_FILE	file name
LOG_SOURCE	any, not present (default)

Setting LOG_SOURCE to any value adds a ("source", "file:line") attribute to the output indicating the source code position of the log statement.

Usage

This is a go app. All the go build, go run, go test, etc. work.

License

MIT License