android3p import of golang-glog

Third-Party Import of: https://github.com/golang/glog
Request Document: go/android3p
For CL Reviewers: go/android3p#reviewing-a-cl
For Build Team: go/ab-third-party-imports
Bug: http://b/333926728
Original import of the code can be found at:
https://googleplex-android.googlesource.com/platform/external/golang-glog/+/refs/heads/third-party-review.
Security Questionnaire: http://b/333926728#comment1

Change-Id: Iba19f6ffb91a675faab325207fa63e6f160ace2d
3 files changed
tree: bb84f87196c5e389fb7901a8382d06a2da752320
  1. internal/
  2. glog.go
  3. glog_bench_test.go
  4. glog_context_test.go
  5. glog_file.go
  6. glog_file_linux.go
  7. glog_file_other.go
  8. glog_file_posix.go
  9. glog_flags.go
  10. glog_test.go
  11. glog_vmodule_test.go
  12. go.mod
  13. go.sum
  14. LICENSE
  15. METADATA
  16. MODULE_LICENSE_APACHE2
  17. OWNERS
  18. README.md
README.md

glog

PkgGoDev

Leveled execution logs for Go.

This is an efficient pure Go implementation of leveled logs in the manner of the open source C++ package glog.

By binding methods to booleans it is possible to use the log package without paying the expense of evaluating the arguments to the log. Through the -vmodule flag, the package also provides fine-grained control over logging at the file level.

The comment from glog.go introduces the ideas:

Package glog implements logging analogous to the Google-internal C++ INFO/ERROR/V setup. It provides the functions Info, Warning, Error, Fatal, plus formatting variants such as Infof. It also provides V-style loggingcontrolled by the -v and -vmodule=file=2 flags.

Basic examples:

glog.Info("Prepare to repel boarders")
	
glog.Fatalf("Initialization failed: %s", err)

See the documentation for the V function for an explanation of these examples:

if glog.V(2) {
	glog.Info("Starting transaction...")
}
glog.V(2).Infoln("Processed", nItems, "elements")

The repository contains an open source version of the log package used inside Google. The master copy of the source lives inside Google, not here. The code in this repo is for export only and is not itself under development. Feature requests will be ignored.

Send bug reports to golang-nuts@googlegroups.com.