66 lines
2.1 KiB
Go
66 lines
2.1 KiB
Go
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package format
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import (
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"bytes"
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"fmt"
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"github.com/hashicorp/terraform/tfdiags"
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"github.com/mitchellh/colorstring"
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wordwrap "github.com/mitchellh/go-wordwrap"
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)
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// Diagnostic formats a single diagnostic message.
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//
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// The width argument specifies at what column the diagnostic messages will
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// be wrapped. If set to zero, messages will not be wrapped by this function
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// at all. Although the long-form text parts of the message are wrapped,
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// not all aspects of the message are guaranteed to fit within the specified
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// terminal width.
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func Diagnostic(diag tfdiags.Diagnostic, color *colorstring.Colorize, width int) string {
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if diag == nil {
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// No good reason to pass a nil diagnostic in here...
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return ""
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}
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var buf bytes.Buffer
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switch diag.Severity() {
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case tfdiags.Error:
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buf.WriteString(color.Color("\n[bold][red]Error: [reset]"))
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case tfdiags.Warning:
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buf.WriteString(color.Color("\n[bold][yellow]Warning: [reset]"))
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default:
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// Clear out any coloring that might be applied by Terraform's UI helper,
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// so our result is not context-sensitive.
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buf.WriteString(color.Color("\n[reset]"))
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}
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desc := diag.Description()
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sourceRefs := diag.Source()
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// We don't wrap the summary, since we expect it to be terse, and since
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// this is where we put the text of a native Go error it may not always
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// be pure text that lends itself well to word-wrapping.
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if sourceRefs.Subject != nil {
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fmt.Fprintf(&buf, color.Color("[bold]%s[reset] at %s\n\n"), desc.Summary, sourceRefs.Subject.StartString())
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} else {
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fmt.Fprintf(&buf, color.Color("[bold]%s[reset]\n\n"), desc.Summary)
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}
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// TODO: also print out the relevant snippet of config source with the
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// relevant section highlighted, so the user doesn't need to manually
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// correlate back to config. Before we can do this, the HCL2 parser
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// needs to be more deeply integrated so that we can use it to obtain
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// the parsed source code and AST.
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if desc.Detail != "" {
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detail := desc.Detail
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if width != 0 {
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detail = wordwrap.WrapString(detail, uint(width))
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}
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fmt.Fprintf(&buf, "%s\n", detail)
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}
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return buf.String()
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}
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