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main.go
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main.go
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// This generator should be used for generating some source code.
package main
import (
"fmt"
"log"
"os"
"path/filepath"
"strings"
)
func main() {
if err := run(); err != nil {
log.Println(err)
os.Exit(1)
}
}
func run() error {
dir, err := os.Getwd()
if err != nil {
return fmt.Errorf("failed to get current working directory: %w", err)
}
g := collectionOfGenerators{
gg: []generator{
orderedMapGenerator{},
stringerGenerator{},
newSetGenerator(),
},
}
return filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
name := info.Name()
if info.IsDir() {
if shouldIgnoreDir(name) {
return filepath.SkipDir
}
return nil
}
if shouldIgnoreFile(name) {
return nil
}
log.Printf("Process file %q", path)
return g.Generate(path)
})
}
func shouldIgnoreDir(name string) bool {
return (name == "vendor") ||
(name[0] == '.') ||
(name == "cmd") ||
(name == "test") ||
(name == "testdata")
}
func shouldIgnoreFile(name string) bool {
return !strings.HasSuffix(name, ".go") ||
strings.HasSuffix(name, "_test.go") ||
strings.HasSuffix(name, "_gen.go")
}
type generator interface {
Generate(string) error
}
type collectionOfGenerators struct {
gg []generator
}
func (c collectionOfGenerators) Generate(p string) error {
for _, g := range c.gg {
if err := g.Generate(p); err != nil {
return err
}
}
return nil
}