280 lines
6.1 KiB
Go
280 lines
6.1 KiB
Go
//go:build mage
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package main
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import (
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"os"
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"path/filepath"
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"github.com/magefile/mage/sh"
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)
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const (
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configFile string = "./config/services.json"
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rootBuildDir string = "./build"
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templateExtension string = ".gotmpl"
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rootTemplatesDir string = "./templates"
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rootAssetsDir string = "./assets"
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)
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// Download downloads the binaries for a given service.
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func Download(name string) error {
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cfg, err := newConfig(configFile)
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if err != nil {
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return fmt.Errorf("unable to load the configuration; %v", err)
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}
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switch name {
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case "forgejo":
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if err := downloadForgejo(cfg.Forgejo.Version); err != nil {
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return fmt.Errorf("an error occurred whilst getting the forgejo binary; %w", err)
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}
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case "gotosocial":
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if err := downloadGoToSocial(cfg.GoToSocial.Version); err != nil {
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return fmt.Errorf("an error occurred whilst getting the packages for GoToSocial; %w", err)
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}
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default:
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fmt.Printf("'%s' has no files to download.\n", name)
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}
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return nil
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}
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// Download Forgejo
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type forgejoDownload struct {
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Downloads map[string]forgejoFiles `json:"downloads"`
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}
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type forgejoFiles struct {
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Binary string `json:"binary"`
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Signature string `json:"signature"`
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Digest string `json:"digest"`
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}
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const (
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forgejoBinaryFileFormat string = "forgejo-%s-linux-amd64"
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forgejoDigestExtension string = ".sha256"
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forgejoSignatureExtension string = ".asc"
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forgejoDownloadJson string = "./magefiles/forgejo/download.json"
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)
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func downloadForgejo(version string) error {
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downloadFolder := filepath.Join(rootBuildDir, "forgejo")
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if err := os.MkdirAll(downloadFolder, 0o750); err != nil {
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return fmt.Errorf("unable to make %s; %w", downloadFolder, err)
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}
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binaryPath := filepath.Join(
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downloadFolder,
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fmt.Sprintf(forgejoBinaryFileFormat, version),
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)
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signaturePath := binaryPath + forgejoSignatureExtension
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digestPath := binaryPath + forgejoDigestExtension
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_, err := os.Stat(binaryPath)
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if err == nil {
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fmt.Printf("Forgejo %s is already downloaded.\n", version)
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return nil
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}
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data, err := newForgejoDownloadData()
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if err != nil {
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return err
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}
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downloads := []struct {
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url string
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path string
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}{
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{
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url: data.Downloads[version].Binary,
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path: binaryPath,
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},
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{
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url: data.Downloads[version].Signature,
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path: signaturePath,
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},
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{
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url: data.Downloads[version].Digest,
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path: digestPath,
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},
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}
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for _, v := range downloads {
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if err := func() error {
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download, err := os.Create(v.path)
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if err != nil {
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return fmt.Errorf("unable to create %s; %w", v.path, err)
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}
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defer download.Close()
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client := http.Client{
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CheckRedirect: func(r *http.Request, _ []*http.Request) error {
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r.URL.Opaque = r.URL.Path
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return nil
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},
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}
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resp, err := client.Get(v.url)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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size, err := io.Copy(download, resp.Body)
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if err != nil {
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return err
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}
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fmt.Printf("Downloaded %s with size %d.\n", v.path, size)
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return nil
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}(); err != nil {
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return err
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}
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}
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if err = sh.Run("gpg", "--verify", signaturePath, binaryPath); err != nil {
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return fmt.Errorf("GPG verification failed; %w", err)
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}
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if err := os.Chdir(downloadFolder); err != nil {
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return err
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}
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if err := sh.Run("sha256sum", "--check", fmt.Sprintf(forgejoBinaryFileFormat+forgejoDigestExtension, version)); err != nil {
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return err
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}
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if err := os.Chdir("../.."); err != nil {
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return err
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}
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return nil
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}
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func newForgejoDownloadData() (forgejoDownload, error) {
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var data forgejoDownload
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f, err := os.Open(forgejoDownloadJson)
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if err != nil {
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return data, err
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}
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defer f.Close()
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decoder := json.NewDecoder(f)
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if err = decoder.Decode(&data); err != nil {
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return data, err
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}
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return data, nil
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}
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// Download GTS
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func downloadGoToSocial(version string) error {
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downloadFolder := filepath.Join(rootBuildDir, "gotosocial")
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if err := os.MkdirAll(downloadFolder, 0o750); err != nil {
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return fmt.Errorf("unable to make %s; %w", downloadFolder, err)
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}
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binaryTarUrl := fmt.Sprintf(
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"https://github.com/superseriousbusiness/gotosocial/releases/download/v%s/gotosocial_%s_linux_amd64.tar.gz",
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version,
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version,
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)
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binaryTarFilepath := filepath.Join(downloadFolder, fmt.Sprintf("gotosocial_%s_linux_amd64.tar.gz", version))
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webAssetsTarUrl := fmt.Sprintf(
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"https://github.com/superseriousbusiness/gotosocial/releases/download/v%s/gotosocial_%s_web-assets.tar.gz",
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version,
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version,
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)
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webAssetsFilepath := filepath.Join(downloadFolder, fmt.Sprintf("gotosocial_%s_web-assets.tar.gz", version))
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checksumUrl := fmt.Sprintf(
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"https://github.com/superseriousbusiness/gotosocial/releases/download/v%s/checksums.txt",
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version,
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)
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checksumFilePath := filepath.Join(downloadFolder, fmt.Sprintf("gotosocial_%s_checksums.txt", version))
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_, err := os.Stat(binaryTarFilepath)
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if err == nil {
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fmt.Printf("GoToSocial %s is already downloaded.\n", version)
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return nil
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}
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downloads := []struct {
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url string
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path string
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}{
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{
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url: binaryTarUrl,
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path: binaryTarFilepath,
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},
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{
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url: webAssetsTarUrl,
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path: webAssetsFilepath,
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},
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{
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url: checksumUrl,
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path: checksumFilePath,
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},
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}
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for _, v := range downloads {
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if err := func() error {
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download, err := os.Create(v.path)
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if err != nil {
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return fmt.Errorf("unable to create %s; %w", v.path, err)
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}
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defer download.Close()
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client := http.Client{
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CheckRedirect: func(r *http.Request, _ []*http.Request) error {
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r.URL.Opaque = r.URL.Path
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return nil
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},
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}
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resp, err := client.Get(v.url)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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size, err := io.Copy(download, resp.Body)
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if err != nil {
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return err
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}
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fmt.Printf("Downloaded %s with size %d.\n", v.path, size)
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return nil
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}(); err != nil {
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return err
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}
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}
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if err := os.Chdir(downloadFolder); err != nil {
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return err
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}
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if err := sh.Run("sha256sum", "--check", "--ignore-missing", fmt.Sprintf("gotosocial_%s_checksums.txt", version)); err != nil {
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return err
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}
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if err := os.Chdir("../.."); err != nil {
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return err
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}
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return nil
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}
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