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Find file Copy path
Find file Copy path
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package fs
import (
"bytes"
"io"
"io/ioutil"
"os"
"gotest.tools/v3/assert"
)
// resourcePath is an adaptor for resources so they can be used as a Path
// with PathOps.
type resourcePath struct{}
func (p *resourcePath) Path() string {
return "manifest: not a filesystem path"
}
func (p *resourcePath) Remove() {}
type filePath struct {
resourcePath
file *file
}
func (p *filePath) SetContent(content io.ReadCloser) {
p.file.content = content
}
func (p *filePath) SetUID(uid uint32) {
p.file.uid = uid
}
func (p *filePath) SetGID(gid uint32) {
p.file.gid = gid
}
type directoryPath struct {
resourcePath
directory *directory
}
func (p *directoryPath) SetUID(uid uint32) {
p.directory.uid = uid
}
func (p *directoryPath) SetGID(gid uint32) {
p.directory.gid = gid
}
func (p *directoryPath) AddSymlink(path, target string) error {
p.directory.items[path] = &symlink{
resource: newResource(defaultSymlinkMode),
target: target,
}
return nil
}
func (p *directoryPath) AddFile(path string, ops ...PathOp) error {
newFile := &file{resource: newResource(0)}
p.directory.items[path] = newFile
exp := &filePath{file: newFile}
return applyPathOps(exp, ops)
}
func (p *directoryPath) AddGlobFiles(glob string, ops ...PathOp) error {
newFile := &file{resource: newResource(0)}
newFilePath := &filePath{file: newFile}
p.directory.filepathGlobs[glob] = newFilePath
return applyPathOps(newFilePath, ops)
}
func (p *directoryPath) AddDirectory(path string, ops ...PathOp) error {
newDir := newDirectoryWithDefaults()
p.directory.items[path] = newDir
exp := &directoryPath{directory: newDir}
return applyPathOps(exp, ops)
}
// Expected returns a Manifest with a directory structured created by ops. The
// PathOp operations are applied to the manifest as expectations of the
// filesystem structure and properties.
func Expected(t assert.TestingT, ops ...PathOp) Manifest {
if ht, ok := t.(helperT); ok {
ht.Helper()
}
newDir := newDirectoryWithDefaults()
e := &directoryPath{directory: newDir}
assert.NilError(t, applyPathOps(e, ops))
return Manifest{root: newDir}
}
func newDirectoryWithDefaults() *directory {
return &directory{
resource: newResource(defaultRootDirMode),
items: make(map[string]dirEntry),
filepathGlobs: make(map[string]*filePath),
}
}
func newResource(mode os.FileMode) resource {
return resource{
mode: mode,
uid: currentUID(),
gid: currentGID(),
}
}
func currentUID() uint32 {
return normalizeID(os.Getuid())
}
func currentGID() uint32 {
return normalizeID(os.Getgid())
}
func normalizeID(id int) uint32 {
// ids will be -1 on windows
if id < 0 {
return 0
}
return uint32(id)
}
var anyFileContent = ioutil.NopCloser(bytes.NewReader(nil))
// MatchAnyFileContent is a PathOp that updates a Manifest so that the file
// at path may contain any content.
func MatchAnyFileContent(path Path) error {
if m, ok := path.(*filePath); ok {
m.SetContent(anyFileContent)
}
return nil
}
// MatchContentIgnoreCarriageReturn is a PathOp that ignores cariage return
// discrepancies.
func MatchContentIgnoreCarriageReturn(path Path) error {
if m, ok := path.(*filePath); ok {
m.file.ignoreCariageReturn = true
}
return nil
}
const anyFile = "*"
// MatchExtraFiles is a PathOp that updates a Manifest to allow a directory
// to contain unspecified files.
func MatchExtraFiles(path Path) error {
if m, ok := path.(*directoryPath); ok {
return m.AddFile(anyFile)
}
return nil
}
// CompareResult is the result of comparison.
//
// See gotest.tools/assert/cmp.StringResult for a convenient implementation of
// this interface.
type CompareResult interface {
Success() bool
FailureMessage() string
}
// MatchFileContent is a PathOp that updates a Manifest to use the provided
// function to determine if a file's content matches the expectation.
func MatchFileContent(f func([]byte) CompareResult) PathOp {
return func(path Path) error {
if m, ok := path.(*filePath); ok {
m.file.compareContentFunc = f
}
return nil
}
}
// MatchFilesWithGlob is a PathOp that updates a Manifest to match files using
// glob pattern, and check them using the ops.
func MatchFilesWithGlob(glob string, ops ...PathOp) PathOp {
return func(path Path) error {
if m, ok := path.(*directoryPath); ok {
return m.AddGlobFiles(glob, ops...)
}
return nil
}
}
// anyFileMode is represented by uint32_max
const anyFileMode os.FileMode = 4294967295
// MatchAnyFileMode is a PathOp that updates a Manifest so that the resource at path
// will match any file mode.
func MatchAnyFileMode(path Path) error {
if m, ok := path.(manifestResource); ok {
m.SetMode(anyFileMode)
}
return nil
}
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