diff options
author | Niall Sheridan <nsheridan@gmail.com> | 2016-05-29 14:46:06 +0100 |
---|---|---|
committer | Niall Sheridan <nsheridan@gmail.com> | 2016-05-29 14:46:06 +0100 |
commit | 1a16ff15b87a10b2e7359ba53104ed4bd9fef9e8 (patch) | |
tree | 1f6ea2155189713110bf05dc62af4a560152917c /vendor/github.com/hashicorp/go-multierror/prefix.go | |
parent | 2d76d6028d75dda1d239d228d47679b5b35ee1e1 (diff) | |
parent | 46ec48845704b54d395727441edc049b009da774 (diff) |
Merge pull request #10 from nsheridan/hcl
Switch from json to hcl configs
Diffstat (limited to 'vendor/github.com/hashicorp/go-multierror/prefix.go')
-rw-r--r-- | vendor/github.com/hashicorp/go-multierror/prefix.go | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/vendor/github.com/hashicorp/go-multierror/prefix.go b/vendor/github.com/hashicorp/go-multierror/prefix.go new file mode 100644 index 0000000..5c477ab --- /dev/null +++ b/vendor/github.com/hashicorp/go-multierror/prefix.go @@ -0,0 +1,37 @@ +package multierror + +import ( + "fmt" + + "github.com/hashicorp/errwrap" +) + +// Prefix is a helper function that will prefix some text +// to the given error. If the error is a multierror.Error, then +// it will be prefixed to each wrapped error. +// +// This is useful to use when appending multiple multierrors +// together in order to give better scoping. +func Prefix(err error, prefix string) error { + if err == nil { + return nil + } + + format := fmt.Sprintf("%s {{err}}", prefix) + switch err := err.(type) { + case *Error: + // Typed nils can reach here, so initialize if we are nil + if err == nil { + err = new(Error) + } + + // Wrap each of the errors + for i, e := range err.Errors { + err.Errors[i] = errwrap.Wrapf(format, e) + } + + return err + default: + return errwrap.Wrapf(format, err) + } +} |