Files
go-omni/cmd/go-omni/apigen/projectEntry.go

36 lines
1006 B
Go

package apigen
import (
"encoding/json"
"fmt"
"os"
"path/filepath"
)
// ProjectEntry discovers the API entry recorded by generation, never guessing
// which of several .api files is the service entry.
func ProjectEntry(directory string) (string, error) {
root, err := filepath.Abs(directory)
if err != nil {
return "", err
}
if err = safePath(root, manifestPath); err != nil {
return "", err
}
data, err := os.ReadFile(filepath.Join(root, manifestPath))
if err != nil {
return "", fmt.Errorf("--api is required outside a generated project (no readable %s)", manifestPath)
}
var m manifest
if err = json.Unmarshal(data, &m); err != nil {
return "", fmt.Errorf("invalid API project manifest: %w", err)
}
if m.Version != 1 || filepath.Ext(m.Entry) != ".api" {
return "", fmt.Errorf("invalid API entry in %s; pass --api explicitly", manifestPath)
}
if err = safePath(root, m.Entry); err != nil {
return "", err
}
return filepath.Join(root, filepath.FromSlash(m.Entry)), nil
}