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readsource.go
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readsource.go
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package loader
import (
"errors"
"fmt"
"io"
"net/url"
"path/filepath"
"github.com/sirupsen/logrus"
"go.k6.io/k6/lib/fsext"
)
// ReadSource Reads a source file from any supported destination.
func ReadSource(
logger logrus.FieldLogger, src, pwd string, filesystems map[string]fsext.Fs, stdin io.Reader,
) (*SourceData, error) {
// 'ToSlash' is here as URL only use '/' as separators, but on Windows paths use '\'
pwdURL := &url.URL{Scheme: "file", Path: filepath.ToSlash(filepath.Clean(pwd)) + "/"}
if src == "-" {
data, err := io.ReadAll(stdin)
if err != nil {
return nil, err
}
// TODO: don't do it in this way ...
//nolint:forcetypeassert
err = fsext.WriteFile(filesystems["file"].(fsext.CacheLayerGetter).GetCachingFs(), "/-", data, 0o644)
if err != nil {
return nil, fmt.Errorf("caching data read from -: %w", err)
}
return &SourceData{URL: &url.URL{Path: "/-", Scheme: "file"}, Data: data, PWD: pwdURL}, err
}
var srcLocalPath string
if filepath.IsAbs(src) {
srcLocalPath = src
} else {
srcLocalPath = filepath.Join(pwd, src)
}
// All paths should start with a / in all fses. This is mostly for windows where it will start
// with a volume name : C:\something.js
srcLocalPath = filepath.Clean(fsext.FilePathSeparator + srcLocalPath)
if ok, _ := fsext.Exists(filesystems["file"], srcLocalPath); ok {
// there is file on the local disk ... lets use it :)
return Load(logger, filesystems, &url.URL{Scheme: "file", Path: filepath.ToSlash(srcLocalPath)}, src)
}
srcURL, err := Resolve(pwdURL, filepath.ToSlash(src))
if err != nil {
var unresolvedError unresolvableURLError
if errors.As(err, &unresolvedError) {
//nolint:stylecheck
return nil, fmt.Errorf(fileSchemeCouldntBeLoadedMsg, (string)(unresolvedError))
}
return nil, err
}
return Load(logger, filesystems, srcURL, src)
}