opentofu/configs/parser_values.go
Martin Atkins 39e609d5fd vendor: switch to HCL 2.0 in the HCL repository
Previously we were using the experimental HCL 2 repository, but now we'll
shift over to the v2 import path within the main HCL repository as part of
actually releasing HCL 2.0 as stable.

This is a mechanical search/replace to the new import paths. It also
switches to the v2.0.0 release of HCL, which includes some new code that
Terraform didn't previously have but should not change any behavior that
matters for Terraform's purposes.

For the moment the experimental HCL2 repository is still an indirect
dependency via terraform-config-inspect, so it remains in our go.sum and
vendor directories for the moment. Because terraform-config-inspect uses
a much smaller subset of the HCL2 functionality, this does still manage
to prune the vendor directory a little. A subsequent release of
terraform-config-inspect should allow us to completely remove that old
repository in a future commit.
2019-10-02 15:10:21 -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
}