opentofu/internal/configs/parser_values.go
Martin Atkins 31349a9c3a Move configs/ to internal/configs/
This is part of a general effort to move all of Terraform's non-library
package surface under internal in order to reinforce that these are for
internal use within Terraform only.

If you were previously importing packages under this prefix into an
external codebase, you could pin to an earlier release tag as an interim
solution until you've make a plan to achieve the same functionality some
other way.
2021-05-17 14:09:07 -07:00

44 lines
1.3 KiB
Go

package configs
import (
"github.com/hashicorp/hcl/v2"
"github.com/zclconf/go-cty/cty"
)
// LoadValuesFile reads the file at the given path and parses it as a "values
// file", which is an HCL config file whose top-level attributes are treated
// as arbitrary key.value pairs.
//
// If the file cannot be read -- for example, if it does not exist -- then
// a nil map will be returned along with error diagnostics. Callers may wish
// to disregard the returned diagnostics in this case and instead generate
// their own error message(s) with additional context.
//
// If the returned diagnostics has errors when a non-nil map is returned
// then the map may be incomplete but should be valid enough for careful
// static analysis.
//
// This method wraps LoadHCLFile, and so it inherits the syntax selection
// behaviors documented for that method.
func (p *Parser) LoadValuesFile(path string) (map[string]cty.Value, hcl.Diagnostics) {
body, diags := p.LoadHCLFile(path)
if body == nil {
return nil, diags
}
vals := make(map[string]cty.Value)
attrs, attrDiags := body.JustAttributes()
diags = append(diags, attrDiags...)
if attrs == nil {
return vals, diags
}
for name, attr := range attrs {
val, valDiags := attr.Expr.Value(nil)
diags = append(diags, valDiags...)
vals[name] = val
}
return vals, diags
}