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Diffstat (limited to 'vendor/go.uber.org/zap/sink.go')
| -rw-r--r-- | vendor/go.uber.org/zap/sink.go | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/vendor/go.uber.org/zap/sink.go b/vendor/go.uber.org/zap/sink.go deleted file mode 100644 index df46fa87..00000000 --- a/vendor/go.uber.org/zap/sink.go +++ /dev/null @@ -1,161 +0,0 @@ -// Copyright (c) 2016 Uber Technologies, Inc. -// -// Permission is hereby granted, free of charge, to any person obtaining a copy -// of this software and associated documentation files (the "Software"), to deal -// in the Software without restriction, including without limitation the rights -// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -// copies of the Software, and to permit persons to whom the Software is -// furnished to do so, subject to the following conditions: -// -// The above copyright notice and this permission notice shall be included in -// all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -// THE SOFTWARE. - -package zap - -import ( - "errors" - "fmt" - "io" - "net/url" - "os" - "strings" - "sync" - - "go.uber.org/zap/zapcore" -) - -const schemeFile = "file" - -var ( - _sinkMutex sync.RWMutex - _sinkFactories map[string]func(*url.URL) (Sink, error) // keyed by scheme -) - -func init() { - resetSinkRegistry() -} - -func resetSinkRegistry() { - _sinkMutex.Lock() - defer _sinkMutex.Unlock() - - _sinkFactories = map[string]func(*url.URL) (Sink, error){ - schemeFile: newFileSink, - } -} - -// Sink defines the interface to write to and close logger destinations. -type Sink interface { - zapcore.WriteSyncer - io.Closer -} - -type nopCloserSink struct{ zapcore.WriteSyncer } - -func (nopCloserSink) Close() error { return nil } - -type errSinkNotFound struct { - scheme string -} - -func (e *errSinkNotFound) Error() string { - return fmt.Sprintf("no sink found for scheme %q", e.scheme) -} - -// RegisterSink registers a user-supplied factory for all sinks with a -// particular scheme. -// -// All schemes must be ASCII, valid under section 3.1 of RFC 3986 -// (https://tools.ietf.org/html/rfc3986#section-3.1), and must not already -// have a factory registered. Zap automatically registers a factory for the -// "file" scheme. -func RegisterSink(scheme string, factory func(*url.URL) (Sink, error)) error { - _sinkMutex.Lock() - defer _sinkMutex.Unlock() - - if scheme == "" { - return errors.New("can't register a sink factory for empty string") - } - normalized, err := normalizeScheme(scheme) - if err != nil { - return fmt.Errorf("%q is not a valid scheme: %v", scheme, err) - } - if _, ok := _sinkFactories[normalized]; ok { - return fmt.Errorf("sink factory already registered for scheme %q", normalized) - } - _sinkFactories[normalized] = factory - return nil -} - -func newSink(rawURL string) (Sink, error) { - u, err := url.Parse(rawURL) - if err != nil { - return nil, fmt.Errorf("can't parse %q as a URL: %v", rawURL, err) - } - if u.Scheme == "" { - u.Scheme = schemeFile - } - - _sinkMutex.RLock() - factory, ok := _sinkFactories[u.Scheme] - _sinkMutex.RUnlock() - if !ok { - return nil, &errSinkNotFound{u.Scheme} - } - return factory(u) -} - -func newFileSink(u *url.URL) (Sink, error) { - if u.User != nil { - return nil, fmt.Errorf("user and password not allowed with file URLs: got %v", u) - } - if u.Fragment != "" { - return nil, fmt.Errorf("fragments not allowed with file URLs: got %v", u) - } - if u.RawQuery != "" { - return nil, fmt.Errorf("query parameters not allowed with file URLs: got %v", u) - } - // Error messages are better if we check hostname and port separately. - if u.Port() != "" { - return nil, fmt.Errorf("ports not allowed with file URLs: got %v", u) - } - if hn := u.Hostname(); hn != "" && hn != "localhost" { - return nil, fmt.Errorf("file URLs must leave host empty or use localhost: got %v", u) - } - switch u.Path { - case "stdout": - return nopCloserSink{os.Stdout}, nil - case "stderr": - return nopCloserSink{os.Stderr}, nil - } - return os.OpenFile(u.Path, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0666) -} - -func normalizeScheme(s string) (string, error) { - // https://tools.ietf.org/html/rfc3986#section-3.1 - s = strings.ToLower(s) - if first := s[0]; 'a' > first || 'z' < first { - return "", errors.New("must start with a letter") - } - for i := 1; i < len(s); i++ { // iterate over bytes, not runes - c := s[i] - switch { - case 'a' <= c && c <= 'z': - continue - case '0' <= c && c <= '9': - continue - case c == '.' || c == '+' || c == '-': - continue - } - return "", fmt.Errorf("may not contain %q", c) - } - return s, nil -} |