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author | Niall Sheridan <nsheridan@gmail.com> | 2016-05-29 02:13:00 +0100 |
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committer | Niall Sheridan <nsheridan@gmail.com> | 2016-05-29 13:59:57 +0100 |
commit | 591aa261d17e60619708b48b312b5db6ed64df10 (patch) | |
tree | 58dc4970f16ef7c33574ba915ee1c069e57977f8 /vendor/github.com/hashicorp/go-multierror/prefix.go | |
parent | 5cbf84c566f648dd7e54a2fdea1b645ef96627b1 (diff) |
Switch from json to hcl configs
This is backward-compatible with the JSON config format - this is a
non-breaking change.
HCL treats config blocks as repeated fields so the config has to be
unmarshalled into a struct comprised of []Server, []Auth, []SSH first.
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) + } +} |