ARM-software/golang-utils

package filesystem

import (
    "archive/zip"
    "fmt"

    "github.com/spf13/afero"
    "github.com/spf13/afero/zipfs"

    "github.com/ARM-software/golang-utils/utils/commonerrors"
)

func newZipFSAdapterFromReader(reader *zip.Reader) (afero.Fs, error) {
    if reader == nil {
        return nil, fmt.Errorf("%w: missing reader", commonerrors.ErrUndefined)
    }
    return afero.NewReadOnlyFs(zipfs.New(reader)), nil
}

func newZipFSAdapterFromFilePath(fs FS, zipFilePath string, limits ILimits) (zipFs afero.Fs, zipFile File, err error) {
    if fs == nil {
        err = fmt.Errorf("%w: missing filesystem to use for finding the zip file", commonerrors.ErrUndefined)
        return
    }
    zipReader, zipFile, err := newZipReader(fs, zipFilePath, limits, 0)
    if err != nil && zipFile != nil {
        subErr := zipFile.Close()
        if subErr == nil {
            zipFile = nil
        }
        return
    }
    zipFs, err = newZipFSAdapterFromReader(zipReader)
    return
}