mars-gen: Sort files by name when processing packages to get stable o…

…rder of registered controllers.

cmd/mars-gen/filesorting.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"go/ast"
+	"sort"
+)
+
+type fInfo struct {
+	Filename string
+	File     *ast.File
+}
+
+type byName []fInfo
+
+func (s byName) Len() int {
+	return len(s)
+}
+func (s byName) Swap(i, j int) {
+	s[i], s[j] = s[j], s[i]
+}
+func (s byName) Less(i, j int) bool {
+	return s[i].Filename < s[j].Filename
+}
+
+func getSortedFiles(pkg *ast.Package) []*ast.File {
+	entries := make([]fInfo, 0, len(pkg.Files))
+	for fn, f := range pkg.Files {
+		entries = append(entries, fInfo{Filename: fn, File: f})
+	}
+
+	sort.Sort(byName(entries))
+
+	slice := make([]*ast.File, len(entries))
+	for idx, i := range entries {
+		slice[idx] = i.File
+	}
+
+	return slice
+}

cmd/mars-gen/reflect.go

@@ -149,7 +149,7 @@ func processPackage(fset *token.FileSet, pkgImportPath, pkgPath string, pkg *ast
 	)
 
 	// For each source file in the package...
-	for _, file := range pkg.Files {
+	for _, file := range getSortedFiles(pkg) {
 
 		// Imports maps the package key to the full import path.
 		// e.g. import "sample/app/models" => "models": "sample/app/models"