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deploy.go
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deploy.go
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package main
import (
"os"
"fmt"
"flag"
"strings"
"os/exec"
"path"
"path/filepath"
"github.com/GlenKelley/dev/s3"
)
func main() {
concurrent := flag.Bool("c", true, "run file uploads concurrently")
bucket := flag.String("bucket", "akusete.com", "s3 destination bucket")
flag.Parse()
buildDir := path.Join(os.Getenv("HOME"), "Sites")
c, err := walkDir(buildDir, *bucket, *concurrent)
panicOnError(err)
err = <- c
panicOnError(err)
}
func walkDir(buildDir string, bucket string, concurrent bool) (chan error, error) {
onFinish := make(chan error)
run := func (path string, info os.FileInfo) error {
err := error(nil)
relativePath, err := filepath.Rel(buildDir, path)
if err != nil { return err }
uploadInfo, err := GetUploadInfo(path, relativePath, info)
if err != nil { return err }
s3info, err := s3.GetS3Info(bucket, uploadInfo.ItemPath)
if err != nil { return err }
if NeedsUpdate(s3info, uploadInfo) {
fmt.Println(path)
err = s3.UploadToS3(path, bucket, uploadInfo)
}
return err
}
visited := 0
err := filepath.Walk(buildDir, func (path string, info os.FileInfo, err error) error {
if err != nil { return err }
if info.IsDir() {
return nil
}
if (concurrent) {
visited++
go func() { onFinish <- run(path, info) }()
err = nil
} else {
err = run(path, info)
}
return err
})
if err != nil {
return nil, err
}
finished := make(chan error)
go func(v int) {
fail := error(nil)
for ; v > 0; v-- {
e := <- onFinish
if e != nil {
fail = e
}
}
finished <- fail
}(visited)
return finished, nil
}
func panicOnError (err error) {
if err != nil { panic(err) }
}
func NeedsUpdate(s3info s3.S3Info, uploadInfo s3.S3UploadInfo) bool {
hashDiff := uploadInfo.MD5 != s3info.MD5
if hashDiff {
fmt.Printf("Hash Diff local[%s] != s3[%s]\n", uploadInfo.MD5, s3info.MD5)
}
sizeDiff := uploadInfo.ContentLength != s3info.Size
if sizeDiff {
fmt.Printf("Size Diff local[%d] != s3[%d]\n", uploadInfo.ContentLength, s3info.Size)
}
// dateDiff := uploadInfo.ModTime.After(s3info.ModTime)
// if dateDiff {
// fmt.Printf("Date Diff local[%s] != s3[%s]\n", uploadInfo.ModTime, s3info.ModTime)
// }
typeDiff := (uploadInfo.ContentType != "") && (uploadInfo.ContentType != s3info.ContentType)
if typeDiff {
fmt.Printf("Type Diff local[%s] != s3[%s]\n", uploadInfo.ContentType, s3info.ContentType)
}
return hashDiff || sizeDiff || typeDiff
}
func GetUploadInfo(path string, relativePath string, info os.FileInfo) (s3.S3UploadInfo, error) {
encodings := map[string]string {
".html": "gzip",
".css": "gzip",
".js": "gzip",
".json": "gzip",
".svg": "gzip",
".jpg": "",
".png": "",
".gif": "",
}
contentTypes := map[string]string {
".html": "text/html; charset=UTF-8",
".css": "text/css; charset=UTF-8",
".js": "application/x-javascript; charset=UTF-8",
".jpg": "image/jpeg",
".png": "image/png",
".svg": "image/svg+xml",
".json": "application/json",
".go": "binary/octet-stream",
}
ext := filepath.Ext(path)
uploadInfo := s3.S3UploadInfo{}
uploadInfo.Encoding = encodings[ext]
uploadInfo.ContentType = contentTypes[ext]
uploadInfo.Public = true
uploadInfo.ContentLength = info.Size()
uploadInfo.ModTime = info.ModTime()
md5, err := GetFileMD5(path)
uploadInfo.MD5 = md5
if (ext == ".html") {
relativePath = relativePath[0:len(relativePath)-len(ext)]
}
uploadInfo.ItemPath = relativePath
return uploadInfo, err
}
func GetFileMD5(path string) (string, error) {
// file, err := os.Open(path)
// if err != nil { return "", err }
// defer file .Close()
// hash := md5.New()
// io.Copy(hash, file)
// signature := make([]byte, 0, hash.Size())
// md51 := hex.EncodeToString(hash.Sum(signature))
bytes, err := exec.Command("md5", "-q", path).Output()
if err != nil { return "", nil }
md5 := strings.TrimSpace(string(bytes))
return md5, nil
}