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Find file Copy path
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/*Package fs provides tools for creating temporary files, and testing the
contents and structure of a directory.
*/
package fs // import "gotest.tools/fs"
import (
"io/ioutil"
"os"
"path/filepath"
"runtime"
"strings"
"gotest.tools/v3/assert"
"gotest.tools/v3/x/subtest"
)
// Path objects return their filesystem path. Path may be implemented by a
// real filesystem object (such as File and Dir) or by a type which updates
// entries in a Manifest.
type Path interface {
Path() string
Remove()
}
var (
_ Path = &Dir{}
_ Path = &File{}
)
// File is a temporary file on the filesystem
type File struct {
path string
}
type helperT interface {
Helper()
}
// NewFile creates a new file in a temporary directory using prefix as part of
// the filename. The PathOps are applied to the before returning the File.
func NewFile(t assert.TestingT, prefix string, ops ...PathOp) *File {
if ht, ok := t.(helperT); ok {
ht.Helper()
}
tempfile, err := ioutil.TempFile("", cleanPrefix(prefix)+"-")
assert.NilError(t, err)
file := &File{path: tempfile.Name()}
assert.NilError(t, tempfile.Close())
assert.NilError(t, applyPathOps(file, ops))
if tc, ok := t.(subtest.TestContext); ok {
tc.AddCleanup(file.Remove)
}
return file
}
func cleanPrefix(prefix string) string {
// windows requires both / and \ are replaced
if runtime.GOOS == "windows" {
prefix = strings.Replace(prefix, string(os.PathSeparator), "-", -1)
}
return strings.Replace(prefix, "/", "-", -1)
}
// Path returns the full path to the file
func (f *File) Path() string {
return f.path
}
// Remove the file
func (f *File) Remove() {
// nolint: errcheck
os.Remove(f.path)
}
// Dir is a temporary directory
type Dir struct {
path string
}
// NewDir returns a new temporary directory using prefix as part of the directory
// name. The PathOps are applied before returning the Dir.
func NewDir(t assert.TestingT, prefix string, ops ...PathOp) *Dir {
if ht, ok := t.(helperT); ok {
ht.Helper()
}
path, err := ioutil.TempDir("", cleanPrefix(prefix)+"-")
assert.NilError(t, err)
dir := &Dir{path: path}
assert.NilError(t, applyPathOps(dir, ops))
if tc, ok := t.(subtest.TestContext); ok {
tc.AddCleanup(dir.Remove)
}
return dir
}
// Path returns the full path to the directory
func (d *Dir) Path() string {
return d.path
}
// Remove the directory
func (d *Dir) Remove() {
// nolint: errcheck
os.RemoveAll(d.path)
}
// Join returns a new path with this directory as the base of the path
func (d *Dir) Join(parts ...string) string {
return filepath.Join(append([]string{d.Path()}, parts...)...)
}
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