move downloader into own package

This commit is contained in:
2025-07-20 13:13:45 -07:00
parent f3e50a197f
commit c2f13637f9
4 changed files with 142 additions and 133 deletions

View File

@ -20,8 +20,10 @@ type Config struct {
}
const (
configDirName = "epochcli"
configName = "config.toml"
configDirName = "epochcli"
configName = "config.toml"
defaultWowPath = "/path/to/wow"
defaultLaunchCmd = "not configured"
)
var (

134
main.go
View File

@ -1,27 +1,15 @@
package main
import (
"crypto/md5"
"encoding/hex"
"flag"
"fmt"
"io"
"io/fs"
"git.burkey.co/eburk/epochcli/pkg/epoch"
"log"
"net/http"
"os"
"os/exec"
"path/filepath"
"regexp"
"strings"
)
const (
manifestUrl = "https://updater.project-epoch.net/api/v2/manifest"
defaultWowPath = "/path/to/wow"
defaultLaunchCmd = "not configured"
)
func main() {
outOfDate, err := needUpdate()
if err != nil {
@ -61,14 +49,14 @@ func main() {
log.Fatalf("WowDir in %s is still the default setting, exiting", cfgPath)
}
stats, err := downloadUpdate(config, forceFlag)
stats, err := epoch.DownloadUpdate(config.WowDir, forceFlag, config.RemoveUnknownPatches)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%d files updated\n\n", stats.updated)
if stats.current > 0 {
fmt.Printf("%d files are already up to date\n\n", stats.current)
fmt.Printf("%d files updated\n\n", stats.Updated)
if stats.Current > 0 {
fmt.Printf("%d files are already up to date\n\n", stats.Current)
}
if configRun {
@ -102,115 +90,3 @@ func main() {
}
}
}
type DownloadStats struct {
updated int
current int
}
func downloadUpdate(config *Config, force bool) (DownloadStats, error) {
var stats DownloadStats
manifest, err := getManifest()
if err != nil {
log.Fatalf("Failed to get manifest: %v\n", err)
}
for _, file := range manifest.Files {
path := strings.ReplaceAll(file.Path, `\`, `/`)
path = strings.TrimLeft(path, `\`)
localPath := filepath.Join(config.WowDir, path)
localDir := filepath.Dir(localPath)
if _, err = os.Stat(localDir); os.IsNotExist(err) {
err = os.MkdirAll(localDir, 0755)
if err != nil {
return stats, fmt.Errorf("failed to create directory %s: %v", localDir, err)
}
}
if !force {
if _, err = os.Stat(localPath); err == nil {
data, err := os.ReadFile(localPath)
if err != nil {
return stats, err
}
hashBytes := md5.Sum(data)
hash := hex.EncodeToString(hashBytes[:])
if hash == file.Hash {
fmt.Printf("File %s is up to date\n", localPath)
stats.current += 1
continue
}
}
}
fmt.Printf("Updating %s...\n", localPath)
outFile, err := os.Create(localPath)
if err != nil {
return stats, err
}
for _, url := range []string{file.Urls.Cloudflare, file.Urls.Digitalocean, file.Urls.None} {
resp, err := http.Get(url)
if err != nil {
outFile.Close()
return stats, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
outFile.Close()
return stats, fmt.Errorf("failed to download update from %s, status code: %d", url, resp.StatusCode)
}
_, err = io.Copy(outFile, resp.Body)
if err != nil {
outFile.Close()
return stats, err
}
break
}
outFile.Close()
stats.updated += 1
}
if config.RemoveUnknownPatches {
patches := make([]string, 0)
patchreg := regexp.MustCompile(`patch-[A-Za-z].MPQ`)
for _, file := range manifest.Files {
if patchreg.MatchString(file.Path) {
patches = append(patches, strings.Split(file.Path, "Data\\")[1])
}
}
err = filepath.WalkDir(filepath.Join(config.WowDir, "Data"), func(path string, d fs.DirEntry, err error) error {
if !d.IsDir() && patchreg.MatchString(d.Name()) {
del := true
for _, patch := range patches {
if patch == d.Name() {
del = false
break
}
}
if del {
err = os.Remove(path)
if err != nil {
return err
}
fmt.Println("Removed unknown patch", d.Name())
}
}
return nil
})
if err != nil {
log.Fatalf("failed to delete unknown patches: %s", err)
}
}
return stats, nil
}

View File

@ -1,4 +1,4 @@
package main
package epoch
import (
"encoding/json"
@ -6,6 +6,10 @@ import (
"net/http"
)
const (
manifestUrl = "https://updater.project-epoch.net/api/v2/manifest"
)
type File struct {
Path string `json:"Path"`
Hash string `json:"Hash"`
@ -25,7 +29,7 @@ type Manifest struct {
CheckedAt string `json:"checked_at"`
}
func getManifest() (*Manifest, error) {
func GetManifest() (*Manifest, error) {
resp, err := http.Get(manifestUrl)
if err != nil {
return nil, err

127
pkg/epoch/update.go Normal file
View File

@ -0,0 +1,127 @@
package epoch
import (
"crypto/md5"
"encoding/hex"
"fmt"
"io"
"io/fs"
"log"
"net/http"
"os"
"path/filepath"
"regexp"
"strings"
)
type DownloadStats struct {
Updated int
Current int
}
func DownloadUpdate(wowdir string, force bool, removeUnknown bool) (DownloadStats, error) {
var stats DownloadStats
manifest, err := GetManifest()
if err != nil {
log.Fatalf("Failed to get manifest: %v\n", err)
}
for _, file := range manifest.Files {
path := strings.ReplaceAll(file.Path, `\`, `/`)
path = strings.TrimLeft(path, `\`)
localPath := filepath.Join(wowdir, path)
localDir := filepath.Dir(localPath)
if _, err = os.Stat(localDir); os.IsNotExist(err) {
err = os.MkdirAll(localDir, 0755)
if err != nil {
return stats, fmt.Errorf("failed to create directory %s: %v", localDir, err)
}
}
if !force {
if _, err = os.Stat(localPath); err == nil {
data, err := os.ReadFile(localPath)
if err != nil {
return stats, err
}
hashBytes := md5.Sum(data)
hash := hex.EncodeToString(hashBytes[:])
if hash == file.Hash {
fmt.Printf("File %s is up to date\n", localPath)
stats.Current += 1
continue
}
}
}
fmt.Printf("Updating %s...\n", localPath)
outFile, err := os.Create(localPath)
if err != nil {
return stats, err
}
for _, url := range []string{file.Urls.Cloudflare, file.Urls.Digitalocean, file.Urls.None} {
resp, err := http.Get(url)
if err != nil {
outFile.Close()
return stats, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
outFile.Close()
return stats, fmt.Errorf("failed to download update from %s, status code: %d", url, resp.StatusCode)
}
_, err = io.Copy(outFile, resp.Body)
if err != nil {
outFile.Close()
return stats, err
}
break
}
outFile.Close()
stats.Updated += 1
}
if removeUnknown {
patches := make([]string, 0)
patchreg := regexp.MustCompile(`patch-[A-Za-z].MPQ`)
for _, file := range manifest.Files {
if patchreg.MatchString(file.Path) {
patches = append(patches, strings.Split(file.Path, "Data\\")[1])
}
}
err = filepath.WalkDir(filepath.Join(wowdir, "Data"), func(path string, d fs.DirEntry, err error) error {
if !d.IsDir() && patchreg.MatchString(d.Name()) {
del := true
for _, patch := range patches {
if patch == d.Name() {
del = false
break
}
}
if del {
err = os.Remove(path)
if err != nil {
return err
}
fmt.Println("Removed unknown patch", d.Name())
}
}
return nil
})
if err != nil {
log.Fatalf("failed to delete unknown patches: %s", err)
}
}
return stats, nil
}