some deletions

[dotfiles/.git] / .config / coc / extensions / coc-go-data / tools / pkg / mod / golang.org / x / tools@v0.0.0-20201028153306-37f0764111ff / cmd / getgo / download.go

diff --git a/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/cmd/getgo/download.go b/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/cmd/getgo/download.go
deleted file mode 100644 (file)
index 383cb3d..0000000
--- a/.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/tools@v0.0.0-20201028153306-37f0764111ff/cmd/getgo/download.go
+++ /dev/null
@@ -1,184 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !plan9
-
-package main
-
-import (
-       "archive/tar"
-       "archive/zip"
-       "compress/gzip"
-       "crypto/sha256"
-       "fmt"
-       "io"
-       "io/ioutil"
-       "net/http"
-       "os"
-       "path/filepath"
-       "strings"
-)
-
-const (
-       currentVersionURL = "https://golang.org/VERSION?m=text"
-       downloadURLPrefix = "https://dl.google.com/go"
-)
-
-// downloadGoVersion downloads and upacks the specific go version to dest/go.
-func downloadGoVersion(version, ops, arch, dest string) error {
-       suffix := "tar.gz"
-       if ops == "windows" {
-               suffix = "zip"
-       }
-       uri := fmt.Sprintf("%s/%s.%s-%s.%s", downloadURLPrefix, version, ops, arch, suffix)
-
-       verbosef("Downloading %s", uri)
-
-       req, err := http.NewRequest("GET", uri, nil)
-       if err != nil {
-               return err
-       }
-       req.Header.Add("User-Agent", fmt.Sprintf("golang.org-getgo/%s", version))
-
-       resp, err := http.DefaultClient.Do(req)
-       if err != nil {
-               return fmt.Errorf("Downloading Go from %s failed: %v", uri, err)
-       }
-       if resp.StatusCode > 299 {
-               return fmt.Errorf("Downloading Go from %s failed with HTTP status %s", uri, resp.Status)
-       }
-       defer resp.Body.Close()
-
-       tmpf, err := ioutil.TempFile("", "go")
-       if err != nil {
-               return err
-       }
-       defer os.Remove(tmpf.Name())
-
-       h := sha256.New()
-
-       w := io.MultiWriter(tmpf, h)
-       if _, err := io.Copy(w, resp.Body); err != nil {
-               return err
-       }
-
-       verbosef("Downloading SHA %s.sha256", uri)
-
-       sresp, err := http.Get(uri + ".sha256")
-       if err != nil {
-               return fmt.Errorf("Downloading Go sha256 from %s.sha256 failed: %v", uri, err)
-       }
-       defer sresp.Body.Close()
-       if sresp.StatusCode > 299 {
-               return fmt.Errorf("Downloading Go sha256 from %s.sha256 failed with HTTP status %s", uri, sresp.Status)
-       }
-
-       shasum, err := ioutil.ReadAll(sresp.Body)
-       if err != nil {
-               return err
-       }
-
-       // Check the shasum.
-       sum := fmt.Sprintf("%x", h.Sum(nil))
-       if sum != string(shasum) {
-               return fmt.Errorf("Shasum mismatch %s vs. %s", sum, string(shasum))
-       }
-
-       unpackFunc := unpackTar
-       if ops == "windows" {
-               unpackFunc = unpackZip
-       }
-       if err := unpackFunc(tmpf.Name(), dest); err != nil {
-               return fmt.Errorf("Unpacking Go to %s failed: %v", dest, err)
-       }
-       return nil
-}
-
-func unpack(dest, name string, fi os.FileInfo, r io.Reader) error {
-       if strings.HasPrefix(name, "go/") {
-               name = name[len("go/"):]
-       }
-
-       path := filepath.Join(dest, name)
-       if fi.IsDir() {
-               return os.MkdirAll(path, fi.Mode())
-       }
-
-       f, err := os.OpenFile(path, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, fi.Mode())
-       if err != nil {
-               return err
-       }
-       defer f.Close()
-
-       _, err = io.Copy(f, r)
-       return err
-}
-
-func unpackTar(src, dest string) error {
-       r, err := os.Open(src)
-       if err != nil {
-               return err
-       }
-       defer r.Close()
-
-       archive, err := gzip.NewReader(r)
-       if err != nil {
-               return err
-       }
-       defer archive.Close()
-
-       tarReader := tar.NewReader(archive)
-
-       for {
-               header, err := tarReader.Next()
-               if err == io.EOF {
-                       break
-               } else if err != nil {
-                       return err
-               }
-
-               if err := unpack(dest, header.Name, header.FileInfo(), tarReader); err != nil {
-                       return err
-               }
-       }
-
-       return nil
-}
-
-func unpackZip(src, dest string) error {
-       zr, err := zip.OpenReader(src)
-       if err != nil {
-               return err
-       }
-
-       for _, f := range zr.File {
-               fr, err := f.Open()
-               if err != nil {
-                       return err
-               }
-               if err := unpack(dest, f.Name, f.FileInfo(), fr); err != nil {
-                       return err
-               }
-               fr.Close()
-       }
-
-       return nil
-}
-
-func getLatestGoVersion() (string, error) {
-       resp, err := http.Get(currentVersionURL)
-       if err != nil {
-               return "", fmt.Errorf("Getting current Go version failed: %v", err)
-       }
-       defer resp.Body.Close()
-       if resp.StatusCode > 299 {
-               b, _ := ioutil.ReadAll(io.LimitReader(resp.Body, 1024))
-               return "", fmt.Errorf("Could not get current Go version: HTTP %d: %q", resp.StatusCode, b)
-       }
-       version, err := ioutil.ReadAll(resp.Body)
-       if err != nil {
-               return "", err
-       }
-       return strings.TrimSpace(string(version)), nil
-}