mirror of
https://github.com/ceph/ceph-csi.git
synced 2025-03-09 00:49:30 +00:00
f87d06ed85
Several packages are only used while running the e2e suite. These packages are less important to update, as the they can not influence the final executable that is part of the Ceph-CSI container-image. By moving these dependencies out of the main Ceph-CSI go.mod, it is easier to identify if a reported CVE affects Ceph-CSI, or only the testing (like most of the Kubernetes CVEs). Signed-off-by: Niels de Vos <ndevos@ibm.com>
131 lines
3.6 KiB
Go
131 lines
3.6 KiB
Go
// 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 klog
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import (
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"errors"
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"fmt"
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"os"
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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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// 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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// logDirs lists the candidate directories for new log files.
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var logDirs []string
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func createLogDirs() {
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if logging.logDir != "" {
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logDirs = append(logDirs, logging.logDir)
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}
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logDirs = append(logDirs, os.TempDir())
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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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userNameOnce sync.Once
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)
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func init() {
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if h, err := os.Hostname(); err == nil {
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host = shortHostname(h)
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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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// 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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getUserName(),
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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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var onceLogDirs sync.Once
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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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// The startup argument indicates whether this is the initial startup of klog.
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// If startup is true, existing files are opened for appending instead of truncated.
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func create(tag string, t time.Time, startup bool) (f *os.File, filename string, err error) {
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if logging.logFile != "" {
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f, err := openOrCreate(logging.logFile, startup)
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if err == nil {
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return f, logging.logFile, nil
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}
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return nil, "", fmt.Errorf("log: unable to create log: %v", err)
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}
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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 := openOrCreate(fname, startup)
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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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// The startup argument indicates whether this is the initial startup of klog.
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// If startup is true, existing files are opened for appending instead of truncated.
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func openOrCreate(name string, startup bool) (*os.File, error) {
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if startup {
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f, err := os.OpenFile(name, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
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return f, err
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}
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f, err := os.Create(name)
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return f, err
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}
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