put config-file-relative paths in exported queries (and error messages)

generate/config.go

@@ -70,16 +70,25 @@ type Config struct {
 	// getter function, global var, or a context-key-type?
 	// TODO: what if you want to return err?
 	ClientGetter string `yaml:"client_getter"`
+
+	// Set automatically to the filename of the config file itself.
+	configFilename string
+}
+
+// BaseDir returns the directory of the config-file (relative to which
+// all the other paths are resolved).
+func (c *Config) BaseDir() string {
+	return filepath.Dir(c.configFilename)
 }
 
 func (c *Config) ValidateAndFillDefaults(configFilename string) error {
+	c.configFilename = configFilename
 	// Make paths relative to config dir
-	configDir := filepath.Dir(configFilename)
-	c.Schema = filepath.Join(configDir, c.Schema)
+	c.Schema = filepath.Join(c.BaseDir(), c.Schema)
 	for i := range c.Operations {
-		c.Operations[i] = filepath.Join(configDir, c.Operations[i])
+		c.Operations[i] = filepath.Join(c.BaseDir(), c.Operations[i])
 	}
-	c.Generated = filepath.Join(configDir, c.Generated)
+	c.Generated = filepath.Join(c.BaseDir(), c.Generated)
 
 	if c.Package == "" {
 		abs, err := filepath.Abs(c.Generated)

generate/generate.go

@@ -159,7 +159,7 @@ func Generate(config *Config) (map[string][]byte, error) {
 		return nil, err
 	}
 
-	document, err := getAndValidateQueries(config.Operations, schema)
+	document, err := getAndValidateQueries(config.BaseDir(), config.Operations, schema)
 	if err != nil {
 		return nil, err
 	}

generate/parse.go

@@ -33,8 +33,8 @@ func getSchema(filename string) (*ast.Schema, error) {
 	return schema, nil
 }
 
-func getAndValidateQueries(filenames []string, schema *ast.Schema) (*ast.QueryDocument, error) {
-	queryDoc, err := getQueries(filenames)
+func getAndValidateQueries(basedir string, filenames []string, schema *ast.Schema) (*ast.QueryDocument, error) {
+	queryDoc, err := getQueries(basedir, filenames)
 	if err != nil {
 		return nil, err
 	}
@@ -48,7 +48,7 @@ func getAndValidateQueries(filenames []string, schema *ast.Schema) (*ast.QueryDo
 	return queryDoc, nil
 }
 
-func getQueries(filenames []string) (*ast.QueryDocument, error) {
+func getQueries(basedir string, filenames []string) (*ast.QueryDocument, error) {
 	// We merge all the queries into a single query-document, since operations
 	// in one might reference fragments in another.
 	//
@@ -77,7 +77,7 @@ func getQueries(filenames []string) (*ast.QueryDocument, error) {
 
 		switch filepath.Ext(filename) {
 		case ".graphql":
-			queryDoc, err := getQueriesFromString(string(text), filename)
+			queryDoc, err := getQueriesFromString(string(text), basedir, filename)
 			if err != nil {
 				return nil, err
 			}
@@ -85,7 +85,7 @@ func getQueries(filenames []string) (*ast.QueryDocument, error) {
 			addQueryDoc(queryDoc)
 
 		case ".go":
-			queryDocs, err := getQueriesFromGo(string(text), filename)
+			queryDocs, err := getQueriesFromGo(string(text), basedir, filename)
 			if err != nil {
 				return nil, err
 			}
@@ -102,7 +102,13 @@ func getQueries(filenames []string) (*ast.QueryDocument, error) {
 	return mergedQueryDoc, nil
 }
 
-func getQueriesFromString(text string, filename string) (*ast.QueryDocument, error) {
+func getQueriesFromString(text string, basedir, filename string) (*ast.QueryDocument, error) {
+	// make path relative to the config-directory
+	relname, err := filepath.Rel(basedir, filename)
+	if err == nil {
+		filename = relname
+	}
+
 	// Cf. gqlparser.LoadQuery
 	document, graphqlError := parser.ParseQuery(
 		&ast.Source{Name: filename, Input: text})
@@ -113,7 +119,7 @@ func getQueriesFromString(text string, filename string) (*ast.QueryDocument, err
 	return document, nil
 }
 
-func getQueriesFromGo(text string, filename string) ([]*ast.QueryDocument, error) {
+func getQueriesFromGo(text string, basedir, filename string) ([]*ast.QueryDocument, error) {
 	fset := goToken.NewFileSet()
 	f, err := goParser.ParseFile(fset, filename, text, 0)
 	if err != nil {
@@ -143,7 +149,7 @@ func getQueriesFromGo(text string, filename string) ([]*ast.QueryDocument, error
 
 		fakeFilename := fset.Position(basicLit.Pos()).String()
 		var query *ast.QueryDocument
-		query, err = getQueriesFromString(value, fakeFilename)
+		query, err = getQueriesFromString(value, basedir, fakeFilename)
 		if err != nil {
 			return false
 		}

generate/parse_test.go

@@ -19,6 +19,20 @@ func sortQueries(queryDoc *ast.QueryDocument) {
 	})
 }
 
+func getTestQueries(t *testing.T, ext string) *ast.QueryDocument {
+	graphqlQueries, err := getQueries(
+		parseDataDir, []string{filepath.Join(parseDataDir, "*."+ext)})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// The different file-types may have the operations/fragments in a
+	// different order.
+	sortQueries(graphqlQueries)
+
+	return graphqlQueries
+}
+
 // TestParse tests that query-extraction from different language source files
 // produces equivalent results.  We do not test the results it produces (that's
 // covered by TestGenerate), just that they are equivalent in different
@@ -26,10 +40,7 @@ func sortQueries(queryDoc *ast.QueryDocument) {
 func TestParse(t *testing.T) {
 	extensions := []string{"go"}
 
-	graphqlQueries, err := getQueries([]string{filepath.Join(parseDataDir, "*.graphql")})
-	if err != nil {
-		t.Fatal(err)
-	}
+	graphqlQueries := getTestQueries(t, "graphql")
 
 	// check it's at least non-empty
 	if len(graphqlQueries.Operations) == 0 || len(graphqlQueries.Fragments) == 0 {
@@ -40,14 +51,7 @@ func TestParse(t *testing.T) {
 
 	for _, ext := range extensions {
 		t.Run(ext, func(t *testing.T) {
-			queries, err := getQueries([]string{filepath.Join(parseDataDir, "*."+ext)})
-			if err != nil {
-				t.Fatal(err)
-			}
-
-			// The different file-types may have the operations/fragments in a
-			// different order.
-			sortQueries(queries)
+			queries := getTestQueries(t, ext)
 
 			got, want := ast.Dump(graphqlQueries), ast.Dump(queries)
 			if got != want {