aya/cmd/aya/buildall.go

// Build everything and store it on PUBDIR
// If boolean watch is true, it keeps on going
// every time you modify something.
package main

import (
	"fmt"
	"os"
	"path/filepath"
	"strings"
	"time"
)

func buildAll(watch bool) {
	lastModified := time.Unix(0, 0)
	modified := false

	vars := globals()
	for {
		os.Mkdir(PUBDIR, 0755)
		filepath.Walk(".", func(path string, info os.FileInfo, err error) error {
			// ignore hidden files and directories
			if filepath.Base(path)[0] == '.' || strings.HasPrefix(path, ".") {
				return nil
			}
			// inform user about fs walk errors, but continue iteration
			if err != nil {
				fmt.Println("error:", err)
				return nil
			}

			if info.IsDir() {
				os.Mkdir(filepath.Join(PUBDIR, path), 0755)
				return nil
			} else if info.ModTime().After(lastModified) {
				if !modified {
					// First file in this build cycle is about to be modified
					run(vars, "prehook")
					modified = true
				}
				fmt.Println("GEN", path)
				return build(path, nil, vars)
			}
			return nil
		})
		if modified {
			// At least one file in this build cycle has been modified
			run(vars, "posthook")
			modified = false
		}
		if !watch {
			break
		}
		lastModified = time.Now()
		time.Sleep(1 * time.Second)
	}
}