file

func CreateDirIfNotExists ¶

func CreateDirIfNotExists(path string) (err error)

CreateDirIfNotExists ensures that the target directory of the directory exists, creating it if it does not exist.

func CreateTargetDirIfNotExists ¶

func CreateTargetDirIfNotExists(path string) (err error)

CreateTargetDirIfNotExists ensures that the target directory of the file/directory exists, creating it if it does not exist. If "path" ends by a slash it's considering as a directory, else it's a file

func Exists ¶

func Exists(path string) bool

Exists returns whether a file or directory exists.

func ExistsFS ¶

func ExistsFS(q fs.FS, path string) bool

ExistsFS returns whether a file or directory exists in the given FS.

func GetFdName ¶

func GetFdName(fd uintptr) (name string, err error)

GetFdName returns file name for given descriptor.

func IsDir ¶

func IsDir(path string) (bool, error)

IdDir determines if a file represented by `path` is a directory or not.

func ReadPidFile ¶

func ReadPidFile(name string) (pid int, err error)

ReadPidFile reads process id from file with give name and returns pid. If unable read from a file, returns error.

func SaveCurrentPID ¶

func SaveCurrentPID(fileName string) error

SaveCurrentPID Writes a pid file, but first make sure it doesn't exist with a running pid. https://gist.github.com/davidnewhall/3627895a9fc8fa0affbd747183abca39

func ZipFiles ¶

func ZipFiles(w io.Writer, filePaths []string) error

ZipFiles writes a zip archive containing the specified files to w. Only the base name of each file is used in the archive (not the full path). Files are compressed using the Deflate method.

Example - Write to file:

f, err := os.Create("archive.zip")
if err != nil {
    return err
}
defer f.Close()

err = file.ZipFiles(f, []string{"/path/to/file1.txt", "/path/to/file2.txt"})

Example - Write to memory buffer:

var buf bytes.Buffer
err := file.ZipFiles(&buf, []string{"/path/to/file.txt"})
if err != nil {
    return err
}
data := buf.Bytes()

Example - Write to HTTP response:

func handleDownload(w http.ResponseWriter, r *http.Request) {
    w.Header().Set("Content-Type", "application/zip")
    w.Header().Set("Content-Disposition", "attachment; filename=archive.zip")
    err := file.ZipFiles(w, filePaths)
    // ...
}