forked from mirror/go-ethereum
Péter Szilágyi
8 years ago
parent
47af53f9aa
commit
d4fd06c3dc
@ -1,191 +0,0 @@ |
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Apache License |
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Version 2.0, January 2004 |
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http://www.apache.org/licenses/ |
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|
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TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION |
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1. Definitions. |
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"License" shall mean the terms and conditions for use, reproduction, and |
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distribution as defined by Sections 1 through 9 of this document. |
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Copyright [yyyy] [name of copyright owner] |
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See the License for the specific language governing permissions and |
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limitations under the License. |
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@ -1,44 +0,0 @@ |
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glog |
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==== |
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|
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Leveled execution logs for Go. |
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|
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This is an efficient pure Go implementation of leveled logs in the |
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manner of the open source C++ package |
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http://code.google.com/p/google-glog |
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|
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By binding methods to booleans it is possible to use the log package |
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without paying the expense of evaluating the arguments to the log. |
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Through the -vmodule flag, the package also provides fine-grained |
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control over logging at the file level. |
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|
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The comment from glog.go introduces the ideas: |
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|
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Package glog implements logging analogous to the Google-internal |
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C++ INFO/ERROR/V setup. It provides functions Info, Warning, |
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Error, Fatal, plus formatting variants such as Infof. It |
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also provides V-style logging controlled by the -v and |
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-vmodule=file=2 flags. |
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|
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Basic examples: |
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|
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glog.Info("Prepare to repel boarders") |
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|
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glog.Fatalf("Initialization failed: %s", err) |
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|
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See the documentation for the V function for an explanation |
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of these examples: |
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|
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if glog.V(2) { |
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glog.Info("Starting transaction...") |
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} |
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|
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glog.V(2).Infoln("Processed", nItems, "elements") |
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|
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|
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The repository contains an open source version of the log package |
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used inside Google. The master copy of the source lives inside |
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Google, not here. The code in this repo is for export only and is not itself |
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under development. Feature requests will be ignored. |
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|
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Send bug reports to golang-nuts@googlegroups.com. |
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File diff suppressed because it is too large
Load Diff
@ -1,128 +0,0 @@ |
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// Go support for leveled logs, analogous to https://code.google.com/p/google-glog/
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//
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// Copyright 2013 Google Inc. All Rights Reserved.
|
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//
|
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// Licensed under the Apache License, Version 2.0 (the "License");
|
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// you may not use this file except in compliance with the License.
|
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// You may obtain a copy of the License at
|
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//
|
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// http://www.apache.org/licenses/LICENSE-2.0
|
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//
|
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// Unless required by applicable law or agreed to in writing, software
|
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// distributed under the License is distributed on an "AS IS" BASIS,
|
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
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// See the License for the specific language governing permissions and
|
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// limitations under the License.
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// File I/O for logs.
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package glog |
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import ( |
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"errors" |
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"fmt" |
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"os" |
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"os/user" |
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"path/filepath" |
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"strings" |
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"sync" |
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"time" |
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) |
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|
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// MaxSize is the maximum size of a log file in bytes.
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var MaxSize uint64 = 1024 * 1024 * 1800 |
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|
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// logDirs lists the candidate directories for new log files.
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var logDirs []string |
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|
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// If non-empty, overrides the choice of directory in which to write logs.
|
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// See createLogDirs for the full list of possible destinations.
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//var logDir = flag.String("log_dir", "", "If non-empty, write log files in this directory")
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var logDir *string = new(string) |
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|
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func SetLogDir(str string) { |
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*logDir = str |
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} |
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|
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func createLogDirs() { |
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if *logDir != "" { |
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logDirs = append(logDirs, *logDir) |
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} |
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logDirs = append(logDirs, os.TempDir()) |
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} |
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|
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var ( |
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pid = os.Getpid() |
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program = filepath.Base(os.Args[0]) |
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host = "unknownhost" |
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userName = "unknownuser" |
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) |
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|
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func init() { |
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h, err := os.Hostname() |
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if err == nil { |
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host = shortHostname(h) |
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} |
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|
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current, err := user.Current() |
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if err == nil { |
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userName = current.Username |
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} |
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|
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// Sanitize userName since it may contain filepath separators on Windows.
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userName = strings.Replace(userName, `\`, "_", -1) |
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} |
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|
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// shortHostname returns its argument, truncating at the first period.
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// For instance, given "www.google.com" it returns "www".
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func shortHostname(hostname string) string { |
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if i := strings.Index(hostname, "."); i >= 0 { |
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return hostname[:i] |
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} |
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return hostname |
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} |
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|
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// logName returns a new log file name containing tag, with start time t, and
|
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// the name for the symlink for tag.
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func logName(tag string, t time.Time) (name, link string) { |
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name = fmt.Sprintf("%s.%s.%s.log.%s.%04d%02d%02d-%02d%02d%02d.%d", |
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program, |
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host, |
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userName, |
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tag, |
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t.Year(), |
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t.Month(), |
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t.Day(), |
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t.Hour(), |
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t.Minute(), |
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t.Second(), |
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pid) |
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return name, program + "." + tag |
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} |
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|
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var onceLogDirs sync.Once |
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|
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// create creates a new log file and returns the file and its filename, which
|
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// contains tag ("INFO", "FATAL", etc.) and t. If the file is created
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// successfully, create also attempts to update the symlink for that tag, ignoring
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// errors.
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func create(tag string, t time.Time) (f *os.File, filename string, err error) { |
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onceLogDirs.Do(createLogDirs) |
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if len(logDirs) == 0 { |
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return nil, "", errors.New("log: no log dirs") |
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} |
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name, link := logName(tag, t) |
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var lastErr error |
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for _, dir := range logDirs { |
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fname := filepath.Join(dir, name) |
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f, err := os.Create(fname) |
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if err == nil { |
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symlink := filepath.Join(dir, link) |
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os.Remove(symlink) // ignore err
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os.Symlink(name, symlink) // ignore err
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return f, fname, nil |
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} |
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lastErr = err |
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} |
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return nil, "", fmt.Errorf("log: cannot create log: %v", lastErr) |
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} |
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@ -1,436 +0,0 @@ |
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// Go support for leveled logs, analogous to https://code.google.com/p/google-glog/
|
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//
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// Copyright 2013 Google Inc. All Rights Reserved.
|
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//
|
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// Licensed under the Apache License, Version 2.0 (the "License");
|
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// you may not use this file except in compliance with the License.
|
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// You may obtain a copy of the License at
|
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//
|
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// http://www.apache.org/licenses/LICENSE-2.0
|
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//
|
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// Unless required by applicable law or agreed to in writing, software
|
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// distributed under the License is distributed on an "AS IS" BASIS,
|
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
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// See the License for the specific language governing permissions and
|
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// limitations under the License.
|
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|
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package glog |
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|
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import ( |
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"bytes" |
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"fmt" |
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stdLog "log" |
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"path/filepath" |
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"runtime" |
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"strconv" |
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"strings" |
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"testing" |
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"time" |
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) |
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|
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// Test that shortHostname works as advertised.
|
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func TestShortHostname(t *testing.T) { |
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for hostname, expect := range map[string]string{ |
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"": "", |
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"host": "host", |
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"host.google.com": "host", |
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} { |
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if got := shortHostname(hostname); expect != got { |
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t.Errorf("shortHostname(%q): expected %q, got %q", hostname, expect, got) |
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} |
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} |
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} |
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|
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// flushBuffer wraps a bytes.Buffer to satisfy flushSyncWriter.
|
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type flushBuffer struct { |
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bytes.Buffer |
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} |
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|
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func (f *flushBuffer) Flush() error { |
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return nil |
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} |
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|
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func (f *flushBuffer) Sync() error { |
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return nil |
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} |
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|
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// swap sets the log writers and returns the old array.
|
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func (l *loggingT) swap(writers [numSeverity]flushSyncWriter) (old [numSeverity]flushSyncWriter) { |
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l.mu.Lock() |
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defer l.mu.Unlock() |
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old = l.file |
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for i, w := range writers { |
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logging.file[i] = w |
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} |
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return |
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} |
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|
||||
// newBuffers sets the log writers to all new byte buffers and returns the old array.
|
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func (l *loggingT) newBuffers() [numSeverity]flushSyncWriter { |
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return l.swap([numSeverity]flushSyncWriter{new(flushBuffer), new(flushBuffer), new(flushBuffer), new(flushBuffer)}) |
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} |
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|
||||
// contents returns the specified log value as a string.
|
||||
func contents(s severity) string { |
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return logging.file[s].(*flushBuffer).String() |
||||
} |
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|
||||
// contains reports whether the string is contained in the log.
|
||||
func contains(s severity, str string, t *testing.T) bool { |
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return strings.Contains(contents(s), str) |
||||
} |
||||
|
||||
// setFlags configures the logging flags how the test expects them.
|
||||
func setFlags() { |
||||
logging.toStderr = false |
||||
} |
||||
|
||||
// Test that Info works as advertised.
|
||||
func TestInfo(t *testing.T) { |
||||
setFlags() |
||||
defer logging.swap(logging.newBuffers()) |
||||
Info("test") |
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if !contains(infoLog, "I", t) { |
||||
t.Errorf("Info has wrong character: %q", contents(infoLog)) |
||||
} |
||||
if !contains(infoLog, "test", t) { |
||||
t.Error("Info failed") |
||||
} |
||||
} |
||||
|
||||
func TestInfoDepth(t *testing.T) { |
||||
setFlags() |
||||
defer logging.swap(logging.newBuffers()) |
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|
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f := func() { InfoDepth(1, "depth-test1") } |
||||
|
||||
// The next three lines must stay together
|
||||
_, _, wantLine, _ := runtime.Caller(0) |
||||
InfoDepth(0, "depth-test0") |
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f() |
||||
|
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msgs := strings.Split(strings.TrimSuffix(contents(infoLog), "\n"), "\n") |
||||
if len(msgs) != 2 { |
||||
t.Fatalf("Got %d lines, expected 2", len(msgs)) |
||||
} |
||||
|
||||
for i, m := range msgs { |
||||
if !strings.HasPrefix(m, "I") { |
||||
t.Errorf("InfoDepth[%d] has wrong character: %q", i, m) |
||||
} |
||||
w := fmt.Sprintf("depth-test%d", i) |
||||
if !strings.Contains(m, w) { |
||||
t.Errorf("InfoDepth[%d] missing %q: %q", i, w, m) |
||||
} |
||||
|
||||
// pull out the line number (between : and ])
|
||||
msg := m[strings.LastIndex(m, ":")+1:] |
||||
x := strings.Index(msg, "]") |
||||
if x < 0 { |
||||
t.Errorf("InfoDepth[%d]: missing ']': %q", i, m) |
||||
continue |
||||
} |
||||
line, err := strconv.Atoi(msg[:x]) |
||||
if err != nil { |
||||
t.Errorf("InfoDepth[%d]: bad line number: %q", i, m) |
||||
continue |
||||
} |
||||
wantLine++ |
||||
if wantLine != line { |
||||
t.Errorf("InfoDepth[%d]: got line %d, want %d", i, line, wantLine) |
||||
} |
||||
} |
||||
} |
||||
|
||||
func init() { |
||||
CopyStandardLogTo("INFO") |
||||
} |
||||
|
||||
// Test that CopyStandardLogTo panics on bad input.
|
||||
func TestCopyStandardLogToPanic(t *testing.T) { |
||||
defer func() { |
||||
if s, ok := recover().(string); !ok || !strings.Contains(s, "LOG") { |
||||
t.Errorf(`CopyStandardLogTo("LOG") should have panicked: %v`, s) |
||||
} |
||||
}() |
||||
CopyStandardLogTo("LOG") |
||||
} |
||||
|
||||
// Test that using the standard log package logs to INFO.
|
||||
func TestStandardLog(t *testing.T) { |
||||
setFlags() |
||||
defer logging.swap(logging.newBuffers()) |
||||
stdLog.Print("test") |
||||
if !contains(infoLog, "I", t) { |
||||
t.Errorf("Info has wrong character: %q", contents(infoLog)) |
||||
} |
||||
if !contains(infoLog, "test", t) { |
||||
t.Error("Info failed") |
||||
} |
||||
} |
||||
|
||||
// Test that the header has the correct format.
|
||||
func TestHeader(t *testing.T) { |
||||
setFlags() |
||||
defer logging.swap(logging.newBuffers()) |
||||
defer func(previous func() time.Time) { timeNow = previous }(timeNow) |
||||
timeNow = func() time.Time { |
||||
return time.Date(2006, 1, 2, 15, 4, 5, .067890e9, time.Local) |
||||
} |
||||
pid = 1234 |
||||
Info("test") |
||||
var line int |
||||
format := "I0102 15:04:05.067890 logger/glog/glog_test.go:%d] test\n" |
||||
n, err := fmt.Sscanf(contents(infoLog), format, &line) |
||||
if n != 1 || err != nil { |
||||
t.Errorf("log format error: %d elements, error %s:\n%s", n, err, contents(infoLog)) |
||||
} |
||||
// Scanf treats multiple spaces as equivalent to a single space,
|
||||
// so check for correct space-padding also.
|
||||
want := fmt.Sprintf(format, line) |
||||
if contents(infoLog) != want { |
||||
t.Errorf("log format error: got:\n\t%q\nwant:\t%q", contents(infoLog), want) |
||||
} |
||||
} |
||||
|
||||
// Test that an Error log goes to Warning and Info.
|
||||
// Even in the Info log, the source character will be E, so the data should
|
||||
// all be identical.
|
||||
func TestError(t *testing.T) { |
||||
setFlags() |
||||
defer logging.swap(logging.newBuffers()) |
||||
Error("test") |
||||
if !contains(errorLog, "E", t) { |
||||
t.Errorf("Error has wrong character: %q", contents(errorLog)) |
||||
} |
||||
if !contains(errorLog, "test", t) { |
||||
t.Error("Error failed") |
||||
} |
||||
str := contents(errorLog) |
||||
if !contains(warningLog, str, t) { |
||||
t.Error("Warning failed") |
||||
} |
||||
if !contains(infoLog, str, t) { |
||||
t.Error("Info failed") |
||||
} |
||||
} |
||||
|
||||
// Test that a Warning log goes to Info.
|
||||
// Even in the Info log, the source character will be W, so the data should
|
||||
// all be identical.
|
||||
func TestWarning(t *testing.T) { |
||||
setFlags() |
||||
defer logging.swap(logging.newBuffers()) |
||||
Warning("test") |
||||
if !contains(warningLog, "W", t) { |
||||
t.Errorf("Warning has wrong character: %q", contents(warningLog)) |
||||
} |
||||
if !contains(warningLog, "test", t) { |
||||
t.Error("Warning failed") |
||||
} |
||||
str := contents(warningLog) |
||||
if !contains(infoLog, str, t) { |
||||
t.Error("Info failed") |
||||
} |
||||
} |
||||
|
||||
// Test that a V log goes to Info.
|
||||
func TestV(t *testing.T) { |
||||
setFlags() |
||||
defer logging.swap(logging.newBuffers()) |
||||
logging.verbosity.Set("2") |
||||
defer logging.verbosity.Set("0") |
||||
V(2).Info("test") |
||||
if !contains(infoLog, "I", t) { |
||||
t.Errorf("Info has wrong character: %q", contents(infoLog)) |
||||
} |
||||
if !contains(infoLog, "test", t) { |
||||
t.Error("Info failed") |
||||
} |
||||
} |
||||
|
||||
// Test that a vmodule enables a log in this file.
|
||||
func TestVmoduleOn(t *testing.T) { |
||||
setFlags() |
||||
defer logging.swap(logging.newBuffers()) |
||||
logging.vmodule.Set("glog_test.go=2") |
||||
defer logging.vmodule.Set("") |
||||
if !V(1) { |
||||
t.Error("V not enabled for 1") |
||||
} |
||||
if !V(2) { |
||||
t.Error("V not enabled for 2") |
||||
} |
||||
if V(3) { |
||||
t.Error("V enabled for 3") |
||||
} |
||||
V(2).Info("test") |
||||
if !contains(infoLog, "I", t) { |
||||
t.Errorf("Info has wrong character: %q", contents(infoLog)) |
||||
} |
||||
if !contains(infoLog, "test", t) { |
||||
t.Error("Info failed") |
||||
} |
||||
} |
||||
|
||||
// Test that a vmodule of another file does not enable a log in this file.
|
||||
func TestVmoduleOff(t *testing.T) { |
||||
setFlags() |
||||
defer logging.swap(logging.newBuffers()) |
||||
logging.vmodule.Set("notthisfile=2") |
||||
defer logging.vmodule.Set("") |
||||
for i := 1; i <= 3; i++ { |
||||
if V(Level(i)) { |
||||
t.Errorf("V enabled for %d", i) |
||||
} |
||||
} |
||||
V(2).Info("test") |
||||
if contents(infoLog) != "" { |
||||
t.Error("V logged incorrectly") |
||||
} |
||||
} |
||||
|
||||
var patternTests = []struct{ input, want string }{ |
||||
{"foo/bar/x.go", ".*/foo/bar/x\\.go$"}, |
||||
{"foo/*/x.go", ".*/foo(/.*)?/x\\.go$"}, |
||||
{"foo/*", ".*/foo(/.*)?/[^/]+\\.go$"}, |
||||
} |
||||
|
||||
func TestCompileModulePattern(t *testing.T) { |
||||
for _, test := range patternTests { |
||||
re, err := compileModulePattern(test.input) |
||||
if err != nil { |
||||
t.Fatalf("%s: %v", test.input, err) |
||||
} |
||||
if re.String() != test.want { |
||||
t.Errorf("mismatch for %q: got %q, want %q", test.input, re.String(), test.want) |
||||
} |
||||
} |
||||
} |
||||
|
||||
// vGlobs are patterns that match/don't match this file at V=2.
|
||||
var vGlobs = map[string]bool{ |
||||
// Easy to test the numeric match here.
|
||||
"glog_test.go=1": false, // If -vmodule sets V to 1, V(2) will fail.
|
||||
"glog_test.go=2": true, |
||||
"glog_test.go=3": true, // If -vmodule sets V to 1, V(3) will succeed.
|
||||
|
||||
// Import path prefix matching
|
||||
"logger/glog=1": false, |
||||
"logger/glog=2": true, |
||||
"logger/glog=3": true, |
||||
|
||||
// Import path glob matching
|
||||
"logger/*=1": false, |
||||
"logger/*=2": true, |
||||
"logger/*=3": true, |
||||
|
||||
// These all use 2 and check the patterns.
|
||||
"*=2": true, |
||||
} |
||||
|
||||
// Test that vmodule globbing works as advertised.
|
||||
func testVmoduleGlob(pat string, match bool, t *testing.T) { |
||||
setFlags() |
||||
defer logging.swap(logging.newBuffers()) |
||||
defer logging.vmodule.Set("") |
||||
logging.vmodule.Set(pat) |
||||
if V(2) != Verbose(match) { |
||||
t.Errorf("incorrect match for %q: got %t expected %t", pat, V(2), match) |
||||
} |
||||
} |
||||
|
||||
// Test that a vmodule globbing works as advertised.
|
||||
func TestVmoduleGlob(t *testing.T) { |
||||
for glob, match := range vGlobs { |
||||
testVmoduleGlob(glob, match, t) |
||||
} |
||||
} |
||||
|
||||
func TestRollover(t *testing.T) { |
||||
setFlags() |
||||
var err error |
||||
defer func(previous func(error)) { logExitFunc = previous }(logExitFunc) |
||||
logExitFunc = func(e error) { |
||||
err = e |
||||
} |
||||
defer func(previous uint64) { MaxSize = previous }(MaxSize) |
||||
MaxSize = 512 |
||||
|
||||
Info("x") // Be sure we have a file.
|
||||
info, ok := logging.file[infoLog].(*syncBuffer) |
||||
if !ok { |
||||
t.Fatal("info wasn't created") |
||||
} |
||||
if err != nil { |
||||
t.Fatalf("info has initial error: %v", err) |
||||
} |
||||
fname0 := info.file.Name() |
||||
Info(strings.Repeat("x", int(MaxSize))) // force a rollover
|
||||
if err != nil { |
||||
t.Fatalf("info has error after big write: %v", err) |
||||
} |
||||
|
||||
// Make sure the next log file gets a file name with a different
|
||||
// time stamp.
|
||||
//
|
||||
// TODO: determine whether we need to support subsecond log
|
||||
// rotation. C++ does not appear to handle this case (nor does it
|
||||
// handle Daylight Savings Time properly).
|
||||
time.Sleep(1 * time.Second) |
||||
|
||||
Info("x") // create a new file
|
||||
if err != nil { |
||||
t.Fatalf("error after rotation: %v", err) |
||||
} |
||||
fname1 := info.file.Name() |
||||
if fname0 == fname1 { |
||||
t.Errorf("info.f.Name did not change: %v", fname0) |
||||
} |
||||
if info.nbytes >= MaxSize { |
||||
t.Errorf("file size was not reset: %d", info.nbytes) |
||||
} |
||||
} |
||||
|
||||
func TestLogBacktraceAt(t *testing.T) { |
||||
setFlags() |
||||
defer logging.swap(logging.newBuffers()) |
||||
// The peculiar style of this code simplifies line counting and maintenance of the
|
||||
// tracing block below.
|
||||
var infoLine string |
||||
setTraceLocation := func(file string, line int, ok bool, delta int) { |
||||
if !ok { |
||||
t.Fatal("could not get file:line") |
||||
} |
||||
_, file = filepath.Split(file) |
||||
infoLine = fmt.Sprintf("%s:%d", file, line+delta) |
||||
err := logging.traceLocation.Set(infoLine) |
||||
if err != nil { |
||||
t.Fatal("error setting log_backtrace_at: ", err) |
||||
} |
||||
} |
||||
{ |
||||
// Start of tracing block. These lines know about each other's relative position.
|
||||
_, file, line, ok := runtime.Caller(0) |
||||
setTraceLocation(file, line, ok, +2) // Two lines between Caller and Info calls.
|
||||
Info("we want a stack trace here") |
||||
} |
||||
numAppearances := strings.Count(contents(infoLog), infoLine) |
||||
if numAppearances < 2 { |
||||
// Need 2 appearances, one in the log header and one in the trace:
|
||||
// log_test.go:281: I0511 16:36:06.952398 02238 log_test.go:280] we want a stack trace here
|
||||
// ...
|
||||
// github.com/glog/glog_test.go:280 (0x41ba91)
|
||||
// ...
|
||||
// We could be more precise but that would require knowing the details
|
||||
// of the traceback format, which may not be dependable.
|
||||
t.Fatal("got no trace back; log is ", contents(infoLog)) |
||||
} |
||||
} |
||||
|
||||
func BenchmarkHeader(b *testing.B) { |
||||
for i := 0; i < b.N; i++ { |
||||
buf, _, _ := logging.header(infoLog, 0) |
||||
logging.putBuffer(buf) |
||||
} |
||||
} |
||||
@ -1,27 +0,0 @@ |
||||
// Copyright 2015 The go-ethereum Authors
|
||||
// This file is part of the go-ethereum library.
|
||||
//
|
||||
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU Lesser General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// The go-ethereum library is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU Lesser General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public License
|
||||
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
package logger |
||||
|
||||
const ( |
||||
Error = iota + 1 |
||||
Warn |
||||
Info |
||||
Debug |
||||
Detail |
||||
|
||||
Ridiculousness = 100 |
||||
) |
||||
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in new issue