diff options
Diffstat (limited to 'vendor')
3 files changed, 0 insertions, 239 deletions
diff --git a/vendor/github.com/docker/docker/pkg/stringid/README.md b/vendor/github.com/docker/docker/pkg/stringid/README.md deleted file mode 100644 index 37a5098fd..000000000 --- a/vendor/github.com/docker/docker/pkg/stringid/README.md +++ /dev/null @@ -1 +0,0 @@ -This package provides helper functions for dealing with string identifiers diff --git a/vendor/github.com/docker/docker/pkg/stringid/stringid.go b/vendor/github.com/docker/docker/pkg/stringid/stringid.go deleted file mode 100644 index a0c7c42a0..000000000 --- a/vendor/github.com/docker/docker/pkg/stringid/stringid.go +++ /dev/null @@ -1,99 +0,0 @@ -// Package stringid provides helper functions for dealing with string identifiers -package stringid - -import ( - cryptorand "crypto/rand" - "encoding/hex" - "fmt" - "io" - "math" - "math/big" - "math/rand" - "regexp" - "strconv" - "strings" - "time" -) - -const shortLen = 12 - -var ( - validShortID = regexp.MustCompile("^[a-f0-9]{12}$") - validHex = regexp.MustCompile(`^[a-f0-9]{64}$`) -) - -// IsShortID determines if an arbitrary string *looks like* a short ID. -func IsShortID(id string) bool { - return validShortID.MatchString(id) -} - -// TruncateID returns a shorthand version of a string identifier for convenience. -// A collision with other shorthands is very unlikely, but possible. -// In case of a collision a lookup with TruncIndex.Get() will fail, and the caller -// will need to use a longer prefix, or the full-length Id. -func TruncateID(id string) string { - if i := strings.IndexRune(id, ':'); i >= 0 { - id = id[i+1:] - } - if len(id) > shortLen { - id = id[:shortLen] - } - return id -} - -func generateID(r io.Reader) string { - b := make([]byte, 32) - for { - if _, err := io.ReadFull(r, b); err != nil { - panic(err) // This shouldn't happen - } - id := hex.EncodeToString(b) - // if we try to parse the truncated for as an int and we don't have - // an error then the value is all numeric and causes issues when - // used as a hostname. ref #3869 - if _, err := strconv.ParseInt(TruncateID(id), 10, 64); err == nil { - continue - } - return id - } -} - -// GenerateRandomID returns a unique id. -func GenerateRandomID() string { - return generateID(cryptorand.Reader) -} - -// GenerateNonCryptoID generates unique id without using cryptographically -// secure sources of random. -// It helps you to save entropy. -func GenerateNonCryptoID() string { - return generateID(readerFunc(rand.Read)) -} - -// ValidateID checks whether an ID string is a valid image ID. -func ValidateID(id string) error { - if ok := validHex.MatchString(id); !ok { - return fmt.Errorf("image ID %q is invalid", id) - } - return nil -} - -func init() { - // safely set the seed globally so we generate random ids. Tries to use a - // crypto seed before falling back to time. - var seed int64 - if cryptoseed, err := cryptorand.Int(cryptorand.Reader, big.NewInt(math.MaxInt64)); err != nil { - // This should not happen, but worst-case fallback to time-based seed. - seed = time.Now().UnixNano() - } else { - seed = cryptoseed.Int64() - } - - rand.Seed(seed) -} - -type readerFunc func(p []byte) (int, error) - -func (fn readerFunc) Read(p []byte) (int, error) { - return fn(p) -} diff --git a/vendor/github.com/docker/docker/pkg/truncindex/truncindex.go b/vendor/github.com/docker/docker/pkg/truncindex/truncindex.go deleted file mode 100644 index 74776e65e..000000000 --- a/vendor/github.com/docker/docker/pkg/truncindex/truncindex.go +++ /dev/null @@ -1,139 +0,0 @@ -// Package truncindex provides a general 'index tree', used by Docker -// in order to be able to reference containers by only a few unambiguous -// characters of their id. -package truncindex - -import ( - "errors" - "fmt" - "strings" - "sync" - - "github.com/tchap/go-patricia/patricia" -) - -var ( - // ErrEmptyPrefix is an error returned if the prefix was empty. - ErrEmptyPrefix = errors.New("Prefix can't be empty") - - // ErrIllegalChar is returned when a space is in the ID - ErrIllegalChar = errors.New("illegal character: ' '") - - // ErrNotExist is returned when ID or its prefix not found in index. - ErrNotExist = errors.New("ID does not exist") -) - -// ErrAmbiguousPrefix is returned if the prefix was ambiguous -// (multiple ids for the prefix). -type ErrAmbiguousPrefix struct { - prefix string -} - -func (e ErrAmbiguousPrefix) Error() string { - return fmt.Sprintf("Multiple IDs found with provided prefix: %s", e.prefix) -} - -// TruncIndex allows the retrieval of string identifiers by any of their unique prefixes. -// This is used to retrieve image and container IDs by more convenient shorthand prefixes. -type TruncIndex struct { - sync.RWMutex - trie *patricia.Trie - ids map[string]struct{} -} - -// NewTruncIndex creates a new TruncIndex and initializes with a list of IDs. -func NewTruncIndex(ids []string) (idx *TruncIndex) { - idx = &TruncIndex{ - ids: make(map[string]struct{}), - - // Change patricia max prefix per node length, - // because our len(ID) always 64 - trie: patricia.NewTrie(patricia.MaxPrefixPerNode(64)), - } - for _, id := range ids { - idx.addID(id) - } - return -} - -func (idx *TruncIndex) addID(id string) error { - if strings.Contains(id, " ") { - return ErrIllegalChar - } - if id == "" { - return ErrEmptyPrefix - } - if _, exists := idx.ids[id]; exists { - return fmt.Errorf("id already exists: '%s'", id) - } - idx.ids[id] = struct{}{} - if inserted := idx.trie.Insert(patricia.Prefix(id), struct{}{}); !inserted { - return fmt.Errorf("failed to insert id: %s", id) - } - return nil -} - -// Add adds a new ID to the TruncIndex. -func (idx *TruncIndex) Add(id string) error { - idx.Lock() - defer idx.Unlock() - return idx.addID(id) -} - -// Delete removes an ID from the TruncIndex. If there are multiple IDs -// with the given prefix, an error is thrown. -func (idx *TruncIndex) Delete(id string) error { - idx.Lock() - defer idx.Unlock() - if _, exists := idx.ids[id]; !exists || id == "" { - return fmt.Errorf("no such id: '%s'", id) - } - delete(idx.ids, id) - if deleted := idx.trie.Delete(patricia.Prefix(id)); !deleted { - return fmt.Errorf("no such id: '%s'", id) - } - return nil -} - -// Get retrieves an ID from the TruncIndex. If there are multiple IDs -// with the given prefix, an error is thrown. -func (idx *TruncIndex) Get(s string) (string, error) { - if s == "" { - return "", ErrEmptyPrefix - } - var ( - id string - ) - subTreeVisitFunc := func(prefix patricia.Prefix, item patricia.Item) error { - if id != "" { - // we haven't found the ID if there are two or more IDs - id = "" - return ErrAmbiguousPrefix{prefix: string(prefix)} - } - id = string(prefix) - return nil - } - - idx.RLock() - defer idx.RUnlock() - if err := idx.trie.VisitSubtree(patricia.Prefix(s), subTreeVisitFunc); err != nil { - return "", err - } - if id != "" { - return id, nil - } - return "", ErrNotExist -} - -// Iterate iterates over all stored IDs and passes each of them to the given -// handler. Take care that the handler method does not call any public -// method on truncindex as the internal locking is not reentrant/recursive -// and will result in deadlock. -func (idx *TruncIndex) Iterate(handler func(id string)) { - idx.Lock() - defer idx.Unlock() - idx.trie.Visit(func(prefix patricia.Prefix, item patricia.Item) error { - handler(string(prefix)) - return nil - }) -} |