Source file src/github.com/hashicorp/go-multierror/format.go

Documentation: github.com/hashicorp/go-multierror

     1  package multierror
     2  
     3  import (
     4  	"fmt"
     5  	"strings"
     6  )
     7  
     8  // ErrorFormatFunc is a function callback that is called by Error to
     9  // turn the list of errors into a string.
    10  type ErrorFormatFunc func([]error) string
    11  
    12  // ListFormatFunc is a basic formatter that outputs the number of errors
    13  // that occurred along with a bullet point list of the errors.
    14  func ListFormatFunc(es []error) string {
    15  	if len(es) == 1 {
    16  		return fmt.Sprintf("1 error occurred:\n\t* %s\n\n", es[0])
    17  	}
    18  
    19  	points := make([]string, len(es))
    20  	for i, err := range es {
    21  		points[i] = fmt.Sprintf("* %s", err)
    22  	}
    23  
    24  	return fmt.Sprintf(
    25  		"%d errors occurred:\n\t%s\n\n",
    26  		len(es), strings.Join(points, "\n\t"))
    27  }
    28  

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