如何使用golang获取Windows上所有驱动器的列表？

Question

我希望我的程序遍历Windows系统上的所有驱动器并搜索特定的文件类型.现在,我可以运行程序并将驱动器号传递给它,但我希望它能自动搜索所有驱动器.目前,我需要做这样的事情:

C:\> program.exe C:
C:\> program.exe D:
C:\> program.exe E:

我希望程序获取所有驱动器的列表并遍历所有驱动器,而无需用户指定驱动器号.这可能使用Go吗？

与此问题类似,列出所有物理驱动器(Windows)但使用Go而不是C.

Answer 1

您可以调用该函数GetLogicalDrives并根据位图匹配字母.

就像是:

package main

import (
    "akori/files/utils/fs"
    "fmt"
    "syscall"
)

func main() {

    kernel32, _ := syscall.LoadLibrary("kernel32.dll")
    getLogicalDrivesHandle, _ := syscall.GetProcAddress(kernel32, "GetLogicalDrives")

    var drives []string

    if ret, _, callErr := syscall.Syscall(uintptr(getLogicalDrivesHandle), 0, 0, 0, 0); callErr != 0 {
        // handle error
    } else {
        drives = bitsToDrives(uint32(ret))
    }

    fmt.Printf("%v", drives)

}

func bitsToDrives(bitMap uint32) (drives []string) {
    availableDrives := []string{"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"}

    for i := range availableDrives {
        if bitMap & 1 == 1 {
            drives = append(drives, availableDrives[i])
        }
        bitMap >>= 1
    }

    return
}

Answer 2

您可以使用gopsutil库：

package main

import (
    "fmt"
    "github.com/shirou/gopsutil/disk"
)

func main() {
    partitions, _ := disk.Partitions(false)
    for _, partition := range partitions {
        fmt.Println(partition.Mountpoint)
    }
}

Answer 3

最简单的方法是编写自己的函数，尝试打开 Volker 提到的“驱动器”文件夹。

import "os"

func getdrives() (r []string){
    for _, drive := range "ABCDEFGHIJKLMNOPQRSTUVWXYZ"{
        f, err := os.Open(string(drive)+":\\")
        if err == nil {
            r = append(r, string(drive))
            f.Close()
        }
    }
    return
}

Answer 4

或者，您可以直接调用GetLogicalDriveStrings：

package main

import (
    "fmt"
    "syscall"
    "unsafe"
)

func main() {
    kernel32, err := syscall.LoadDLL("kernel32.dll")
    getLogicalDriveStringsHandle, err := kernel32.FindProc("GetLogicalDriveStringsA")

    buffer := [1024]byte{}
    bufferSize := uint32(len(buffer))
    drives := []string{}

    hr, _, _ := getLogicalDriveStringsHandle.Call(uintptr(unsafe.Pointer(&bufferSize)), uintptr(unsafe.Pointer(&buffer)))
    if hr == 0 {
        fmt.Print("There was an error")
    } else {
        // Deal with the buffer, you need to split it
    }
}