53 lines
1.6 KiB
Go
53 lines
1.6 KiB
Go
package generate
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import (
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"fmt"
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"io/ioutil"
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"github.com/vektah/gqlparser"
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"github.com/vektah/gqlparser/ast"
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"github.com/vektah/gqlparser/parser"
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"github.com/vektah/gqlparser/validator"
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)
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func getSchema(filename string) (*ast.Schema, error) {
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// TODO: IRL we have to get the schema from GraphQL (maybe we can generate
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// that once we can bootstrap) where it comes as JSON, not SDL, so we have
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// to convert (or add gqlparser support to convert)
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text, err := ioutil.ReadFile(filename)
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if err != nil {
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return nil, fmt.Errorf("unreadable schema file %v: %v", filename, err)
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}
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schema, graphqlError := gqlparser.LoadSchema(
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&ast.Source{Name: filename, Input: string(text)})
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if graphqlError != nil {
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return nil, fmt.Errorf("invalid schema file %v: %v",
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filename, graphqlError)
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}
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return schema, nil
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}
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func getAndValidateQueries(filename string, schema *ast.Schema) (*ast.QueryDocument, error) {
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text, err := ioutil.ReadFile(filename)
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if err != nil {
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return nil, fmt.Errorf("unreadable query-spec file %v: %v", filename, err)
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}
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// The following is more or less gqlparser.LoadQuery, but we can provide a
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// name so we might as well (and we break out the two errors).
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document, graphqlError := parser.ParseQuery(
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&ast.Source{Name: filename, Input: string(text)})
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if graphqlError != nil { // ParseQuery returns type *graphql.Error, yuck
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return nil, fmt.Errorf("invalid query-spec file %v: %v", filename, graphqlError)
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}
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graphqlErrors := validator.Validate(schema, document)
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if graphqlErrors != nil {
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return nil, fmt.Errorf("query-spec does not match schema: %v", graphqlErrors)
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}
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return document, nil
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}
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