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path: root/cmd/build/main.go
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package main

import (
	"fmt"
	"io/fs"
	"log"
	"log/slog"
	"os"

	"github.com/BurntSushi/toml"
	"github.com/ardanlabs/conf/v3"
	"github.com/pkg/errors"
)

func main() {
	if os.Getenv("DEBUG") != "" {
		slog.SetLogLoggerLevel(slog.LevelDebug)
	}
	slog.Debug("starting build process")

	ioConfig := IOConfig{}
	if help, err := conf.Parse("", &ioConfig); err != nil {
		if errors.Is(err, conf.ErrHelpWanted) {
			fmt.Println(help)
			os.Exit(1)
		}
		log.Panicf("parsing I/O configuration: %v", err)
	}

	if ioConfig.Source != "." {
		err := os.Chdir(ioConfig.Source)
		if err != nil {
			log.Panic("could not change to source directory")
		}
	}

	if err := buildSite(ioConfig); err != nil {
		switch cause := errors.Cause(err).(type) {
		case *fs.PathError:
			slog.Info("pathError")
			slog.Error(fmt.Sprintf("%s", err))
		case toml.ParseError:
			slog.Info("parseError")
			slog.Error(fmt.Sprintf("%s", err))
		default:
			slog.Info("other")
			slog.Error(fmt.Sprintf("cause:%+v", errors.Cause(cause)))
			slog.Error(fmt.Sprintf("%+v", cause))
		}
		os.Exit(1)
	}
}