serve site from filesystem rather than embedding

It's cool to embed, but it requires server.go to be at the root. Also,
I'd like to be able to update the built site separately in the future.

1 files changed, 20 insertions, 9 deletions

diff --git a/cmd/build/build.go b/cmd/build/build.go
index 058b82f..ea611aa 100644
--- a/cmd/build/build.go
+++ b/cmd/build/build.go
@@ -25,6 +25,7 @@ import (
 	"github.com/adrg/frontmatter"
 	"github.com/antchfx/xmlquery"
 	"github.com/antchfx/xpath"
+	"github.com/ardanlabs/conf/v3"
 	mapset "github.com/deckarep/golang-set/v2"
 	cp "github.com/otiai10/copy"
 	"github.com/pkg/errors"
@@ -519,29 +520,39 @@ func build(outDir string) error {
 	return nil
 }
 
+type IOConfig struct {
+	Source      string `conf:"default:.,short:s"`
+	Destination string `conf:"default:public,short:d"`
+}
+
 func main() {
 	if os.Getenv("DEBUG") != "" {
 		slog.SetLogLoggerLevel(slog.LevelDebug)
 	}
 	slog.Debug("starting build process")
-	_, err := os.Getwd()
-	if err != nil {
-		log.Panic(errors.Errorf("working directory does not exist: %v", err))
-	}
 
-	outDir := "public"
-	err = os.RemoveAll("public")
+	ioConfig := IOConfig{}
+	conf.Parse("", &ioConfig)
+
+	if ioConfig.Source != "." {
+		err := os.Chdir(ioConfig.Source)
+		if err != nil {
+			log.Panic("could not change to source directory")
+		}
+	}
+	err := os.RemoveAll(ioConfig.Destination)
 	if err != nil {
 		log.Panic(errors.Errorf("could not remove public directory: %v", err))
 	}
-	err = cp.Copy("static", outDir, cp.Options{
-		PreserveTimes: true,
+	err = cp.Copy(path.Join(ioConfig.Source, "static"), ioConfig.Destination, cp.Options{
+		PreserveTimes:     true,
+		PermissionControl: cp.AddPermission(0755),
 	})
 	if err != nil {
 		log.Panic(errors.Errorf("could not copy static files: %v", err))
 	}
 
-	if err := build(outDir); err != nil {
+	if err := build(ioConfig.Destination); err != nil {
 		switch cause := errors.Cause(err).(type) {
 		case *fs.PathError:
 			slog.Info("pathError")