Task Attachments (#104)
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36
vendor/golang.org/x/tools/internal/gopathwalk/walk.go
generated
vendored
36
vendor/golang.org/x/tools/internal/gopathwalk/walk.go
generated
vendored
@ -59,15 +59,27 @@ func SrcDirsRoots(ctx *build.Context) []Root {
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// paths of the containing source directory and the package directory.
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// add will be called concurrently.
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func Walk(roots []Root, add func(root Root, dir string), opts Options) {
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WalkSkip(roots, add, func(Root, string) bool { return false }, opts)
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}
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// WalkSkip walks Go source directories ($GOROOT, $GOPATH, etc) to find packages.
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// For each package found, add will be called (concurrently) with the absolute
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// paths of the containing source directory and the package directory.
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// For each directory that will be scanned, skip will be called (concurrently)
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// with the absolute paths of the containing source directory and the directory.
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// If skip returns false on a directory it will be processed.
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// add will be called concurrently.
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// skip will be called concurrently.
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func WalkSkip(roots []Root, add func(root Root, dir string), skip func(root Root, dir string) bool, opts Options) {
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for _, root := range roots {
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walkDir(root, add, opts)
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walkDir(root, add, skip, opts)
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}
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}
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func walkDir(root Root, add func(Root, string), opts Options) {
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func walkDir(root Root, add func(Root, string), skip func(root Root, dir string) bool, opts Options) {
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if _, err := os.Stat(root.Path); os.IsNotExist(err) {
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if opts.Debug {
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log.Printf("skipping nonexistant directory: %v", root.Path)
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log.Printf("skipping nonexistent directory: %v", root.Path)
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}
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return
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}
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@ -77,6 +89,7 @@ func walkDir(root Root, add func(Root, string), opts Options) {
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w := &walker{
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root: root,
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add: add,
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skip: skip,
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opts: opts,
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}
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w.init()
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@ -91,9 +104,10 @@ func walkDir(root Root, add func(Root, string), opts Options) {
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// walker is the callback for fastwalk.Walk.
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type walker struct {
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root Root // The source directory to scan.
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add func(Root, string) // The callback that will be invoked for every possible Go package dir.
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opts Options // Options passed to Walk by the user.
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root Root // The source directory to scan.
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add func(Root, string) // The callback that will be invoked for every possible Go package dir.
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skip func(Root, string) bool // The callback that will be invoked for every dir. dir is skipped if it returns true.
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opts Options // Options passed to Walk by the user.
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ignoredDirs []os.FileInfo // The ignored directories, loaded from .goimportsignore files.
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}
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@ -151,12 +165,16 @@ func (w *walker) getIgnoredDirs(path string) []string {
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return ignoredDirs
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}
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func (w *walker) shouldSkipDir(fi os.FileInfo) bool {
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func (w *walker) shouldSkipDir(fi os.FileInfo, dir string) bool {
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for _, ignoredDir := range w.ignoredDirs {
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if os.SameFile(fi, ignoredDir) {
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return true
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}
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}
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if w.skip != nil {
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// Check with the user specified callback.
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return w.skip(w.root, dir)
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}
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return false
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}
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@ -184,7 +202,7 @@ func (w *walker) walk(path string, typ os.FileMode) error {
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return filepath.SkipDir
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}
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fi, err := os.Lstat(path)
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if err == nil && w.shouldSkipDir(fi) {
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if err == nil && w.shouldSkipDir(fi, path) {
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return filepath.SkipDir
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}
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return nil
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@ -224,7 +242,7 @@ func (w *walker) shouldTraverse(dir string, fi os.FileInfo) bool {
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if !ts.IsDir() {
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return false
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}
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if w.shouldSkipDir(ts) {
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if w.shouldSkipDir(ts, dir) {
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return false
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}
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// Check for symlink loops by statting each directory component
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