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package main
import (
"fmt"
"strings"
"github.com/hashicorp/hcl/v2"
"github.com/zclconf/go-cty/cty"
)
func parseVarsArg(src string, argIdx int) (map[string]cty.Value, hcl.Diagnostics) {
fakeFn := fmt.Sprintf("<vars argument %d>", argIdx)
f, diags := parser.ParseJSON([]byte(src), fakeFn)
if f == nil {
return nil, diags
}
vals, valsDiags := parseVarsBody(f.Body)
diags = append(diags, valsDiags...)
return vals, diags
}
func parseVarsFile(filename string) (map[string]cty.Value, hcl.Diagnostics) {
var f *hcl.File
var diags hcl.Diagnostics
if strings.HasSuffix(filename, ".json") {
f, diags = parser.ParseJSONFile(filename)
} else {
f, diags = parser.ParseHCLFile(filename)
}
if f == nil {
return nil, diags
}
vals, valsDiags := parseVarsBody(f.Body)
diags = append(diags, valsDiags...)
return vals, diags
}
func parseVarsBody(body hcl.Body) (map[string]cty.Value, hcl.Diagnostics) {
attrs, diags := body.JustAttributes()
if attrs == nil {
return nil, diags
}
vals := make(map[string]cty.Value, len(attrs))
for name, attr := range attrs {
val, valDiags := attr.Expr.Value(nil)
diags = append(diags, valDiags...)
vals[name] = val
}
return vals, diags
}
// varSpecs is an implementation of pflag.Value that accumulates a list of
// raw values, ignoring any quoting. This is similar to pflag.StringSlice
// but does not complain if there are literal quotes inside the value, which
// is important for us to accept JSON literals here.
type varSpecs []string
func (vs *varSpecs) String() string {
return strings.Join([]string(*vs), ", ")
}
func (vs *varSpecs) Set(new string) error {
*vs = append(*vs, new)
return nil
}
func (vs *varSpecs) Type() string {
return "json-or-file"
}
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