| 1 | // Copyright 2017 The Go Authors. All rights reserved. |
|---|---|
| 2 | // Use of this source code is governed by a BSD-style |
| 3 | // license that can be found in the LICENSE file. |
| 4 | |
| 5 | //go:build windows |
| 6 | // +build windows |
| 7 | |
| 8 | package main |
| 9 | |
| 10 | import ( |
| 11 | "context" |
| 12 | "log" |
| 13 | "os" |
| 14 | "syscall" |
| 15 | "unsafe" |
| 16 | ) |
| 17 | |
| 18 | const ( |
| 19 | envSeparator = ";" |
| 20 | homeKey = "USERPROFILE" |
| 21 | lineEnding = "/r/n" |
| 22 | pathVar = "$env:Path" |
| 23 | ) |
| 24 | |
| 25 | var installPath = `c:\go` |
| 26 | |
| 27 | func isWindowsXP() bool { |
| 28 | v, err := syscall.GetVersion() |
| 29 | if err != nil { |
| 30 | log.Fatalf("GetVersion failed: %v", err) |
| 31 | } |
| 32 | major := byte(v) |
| 33 | return major < 6 |
| 34 | } |
| 35 | |
| 36 | func whichGo(ctx context.Context) (string, error) { |
| 37 | return findGo(ctx, "where") |
| 38 | } |
| 39 | |
| 40 | // currentShell reports the current shell. |
| 41 | // It might be "powershell.exe", "cmd.exe" or any of the *nix shells. |
| 42 | // |
| 43 | // Returns empty string if the shell is unknown. |
| 44 | func currentShell() string { |
| 45 | shell := os.Getenv("SHELL") |
| 46 | if shell != "" { |
| 47 | return shell |
| 48 | } |
| 49 | |
| 50 | pid := os.Getppid() |
| 51 | pe, err := getProcessEntry(pid) |
| 52 | if err != nil { |
| 53 | verbosef("getting shell from process entry failed: %v", err) |
| 54 | return "" |
| 55 | } |
| 56 | |
| 57 | return syscall.UTF16ToString(pe.ExeFile[:]) |
| 58 | } |
| 59 | |
| 60 | func getProcessEntry(pid int) (*syscall.ProcessEntry32, error) { |
| 61 | // From https://go.googlesource.com/go/+/go1.8.3/src/syscall/syscall_windows.go#941 |
| 62 | snapshot, err := syscall.CreateToolhelp32Snapshot(syscall.TH32CS_SNAPPROCESS, 0) |
| 63 | if err != nil { |
| 64 | return nil, err |
| 65 | } |
| 66 | defer syscall.CloseHandle(snapshot) |
| 67 | |
| 68 | var procEntry syscall.ProcessEntry32 |
| 69 | procEntry.Size = uint32(unsafe.Sizeof(procEntry)) |
| 70 | if err = syscall.Process32First(snapshot, &procEntry); err != nil { |
| 71 | return nil, err |
| 72 | } |
| 73 | |
| 74 | for { |
| 75 | if procEntry.ProcessID == uint32(pid) { |
| 76 | return &procEntry, nil |
| 77 | } |
| 78 | |
| 79 | if err := syscall.Process32Next(snapshot, &procEntry); err != nil { |
| 80 | return nil, err |
| 81 | } |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | func persistEnvChangesForSession() error { |
| 86 | return nil |
| 87 | } |
| 88 |
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