英文:
How to zip symlinks in Golang using "archive/zip" package?
问题
我需要压缩/解压包含符号链接的文件夹，以便保留结构并将符号链接写入为符号链接。
是否可以使用Golang包"archive/zip"来实现这一点？或者还有其他替代方法吗？
我尝试使用了这段代码，但是'io.Copy()'会复制目标文件的内容，导致我们"丢失"了符号链接。
archive, err := os.Create("archive.zip")
if err != nil {
panic(err)
}
defer archive.Close()
zipWriter := zip.NewWriter(archive)
localPath := "../testdata/sym"
file, err := os.Open(localPath)
defer file.Close()
if err != nil {
panic(err)
}
w1, err := zipWriter.Create("w1")
if _, err = io.Copy(w1, file); err != nil {
panic(err)
}
zipWriter.Close()
英文:
I need to zip/unzip folder that contains symlinks in a way that the structure will be saved and symlinks will be written as symlinks.
Is there a way doing this using Golang package "archive/zip"? or any other alternative way?
I tried to use this code, but 'io.Copy()' copies the target file content and we "lose" the symlink.
archive, err := os.Create("archive.zip")
if err != nil {
panic(err)
}
defer archive.Close()
zipWriter := zip.NewWriter(archive)
localPath := "../testdata/sym"
file, err := os.Open(localPath)
defer file.Close()
if err != nil {
panic(err)
}
w1 , err:= zipWriter.Create("w1")
if _, err = io.Copy(w1, file); err !=nil{
panic(err)
}
zipWriter.Close()
答案1
得分: 1
我使用了这个PR：https://github.com/mholt/archiver/pull/92，并将符号链接的目标写入了writer。
我在Linux和Windows上进行了测试。
archive, err := os.Create("archive.zip")
if err != nil {
panic(err)
}
defer archive.Close()
zipWriter := zip.NewWriter(archive)
defer zipWriter.Close()
localPath := "../testdata/sym"
symlinksTarget := "../a/b.in"
file, err := os.Open(localPath)
defer file.Close()
if err != nil {
panic(err)
}
info, err := os.Lstat(file.Name())
if err != nil {
panic(err)
}
header, err := zip.FileInfoHeader(info)
if err != nil {
panic(err)
}
header.Method = zip.Deflate
writer, err := zipWriter.CreateHeader(header)
if err != nil {
panic(err)
}
// 将符号链接的目标写入writer - 对于符号链接，文件的内容就是符号链接的目标。
_, err = writer.Write([]byte(filepath.ToSlash(symlinksTarget)))
if err != nil {
panic(err)
}
以上是代码的翻译部分。
英文:
I used this PR : https://github.com/mholt/archiver/pull/92
and wrote symlink's target to writer.
I tested it on Linux and Windows.
archive, err := os.Create("archive.zip")
if err != nil {
panic(err)
}
defer archive.Close()
zipWriter := zip.NewWriter(archive)
defer zipWriter.Close()
localPath := "../testdata/sym"
symlinksTarget = "../a/b.in"
file, err := os.Open(localPath)
defer file.Close()
if err != nil {
panic(err)
}
info, err := os.Lstat(file.Name())
if err != nil {
panic(err)
}
header, err := zip.FileInfoHeader(info)
if err != nil {
panic(err)
}
header.Method = zip.Deflate
writer, err := zipWriter.CreateHeader(header)
if err != nil {
panic(err)
}
// Write symlink's target to writer - file's body for symlinks is the symlink target.
_, err = writer.Write([]byte(filepath.ToSlash(symlinksTarget)))
if err != nil {
panic(err)
}
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