Merge pull request uber-go#1 from uber-common/ajs-docs

Migrate non-code scaffolding

.travis.yml

@@ -0,0 +1,16 @@
+language: go
+go:
+  - 1.5
+  - 1.6
+  - tip
+env:
+  global:
+    - GO15VENDOREXPERIMENT=1
+cache:
+  directories:
+    - vendor
+install:
+  - make dependencies
+script:
+  - make coveralls
+  - make lint

LICENSE.txt

@@ -0,0 +1,19 @@
+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.

Makefile

@@ -0,0 +1,41 @@
+export GO15VENDOREXPERIMENT=1
+
+BENCH_FLAGS ?= -cpuprofile=cpu.pprof -memprofile=mem.pprof -benchmem
+PACKAGES ?= $(shell glide novendor)
+
+.PHONY: all
+all: lint test
+
+.PHONY: dependencies
+dependencies:
+	glide --version || go get -u -f github.com/Masterminds/glide
+	glide install
+	go install ./vendor/github.com/golang/lint/golint
+	go install ./vendor/github.com/axw/gocov/gocov
+	go install ./vendor/github.com/mattn/goveralls
+
+.PHONY: lint
+lint:
+	rm -rf lint.log
+	@echo "Checking formatting..."
+	gofmt -d -s *.go benchmarks 2>&1 | tee lint.log
+	@echo "Checking vet..."
+	go tool vet *.go 2>&1 | tee -a lint.log
+	go tool vet benchmarks 2>&1 | tee -a lint.log
+	@echo "Checking lint..."
+	golint . 2>&1 | tee -a lint.log
+	golint benchmarks 2>&1 | tee -a lint.log
+	@[ ! -s lint.log ]
+
+.PHONY: test
+test:
+	go test -race $(PACKAGES)
+
+.PHONY: coveralls
+coveralls:
+	goveralls -service=travis-ci $(PACKAGES)
+
+.PHONY: bench
+BENCH ?= .
+bench:
+	go test -bench=$(BENCH) $(BENCH_FLAGS) ./benchmarks

README.md

@@ -0,0 +1,73 @@
+# :zap: zap [![GoDoc][doc-img]][doc] [![Build Status][ci-img]][ci] [![Coverage Status][cov-img]][cov]
+
+Fast, structured, leveled logging in Go.
+
+## Structure
+
+Zap takes an opinionated stance on logging and doesn't provide any
+`printf`-style helpers. Rather than `logger.Printf("Error %v writing logs to
+%v, lost %v messages.", err, f, m)`, flog encourages the more structured
+
+```
+Logger.
+  WithError(err).
+  With("msgCount", m).
+  With("fileName", f).
+  Info("Error writing logs.")
+```
+
+This a bit more verbose, but it enables powerful ad-hoc analysis, flexible
+dashboarding, and accurate message bucketing. In short, it helps you get the
+most out of tools like ELK, Splunk, and Sentry. All log messages are
+JSON-serialized.
+
+## Performance
+
+For applications that log in the hot path, reflection-based serialization and
+string formatting are prohibitively expensive — they're CPU-intensive and
+make many small allocations. Put differently, using `encoding/json` to log tons
+of `interface{}`s makes your application slow.
+
+Zap's API offers a variety of type-safe ways to annotate a logger's context
+without incurring tons of overhead. It also offers a suite of conditional
+annotations, so collecting rich debugging context doesn't impact normal
+operations.
+
+As measured by its own benchmarking suite, not only is zap more performant
+than comparable structured logging libraries — it's also faster than the
+standard library. Like all benchmarks, take these with a grain of salt.
+
+Add 5 fields to the logging context, one at a time:
+
+| Library | Time | Bytes Allocated | Objects Allocated |
+| :--- | :---: | :---: | ---: |
+| zap | 3340 ns/op | 5713 B/op | 16 allocs/op |
+| logrus | 66776 ns/op | 52646 B/op | 254 allocs/op |
+
+Add 5 fields to the logging context as a single map:
+
+| Library | Time | Bytes Allocated | Objects Allocated |
+| :--- | :---: | :---: | ---: |
+| zap | 1615 ns/op | 1504 B/op | 6 allocs/op |
+| logrus | 36592 ns/op | 21409 B/op | 209 allocs/op |
+
+Log static strings, without any context or `printf`-style formatting:
+
+| Library | Time | Bytes Allocated | Objects Allocated |
+| :--- | :---: | :---: | ---: |
+| zap | 328 ns/op | 32 B/op | 1 allocs/op |
+| standard library | 840 ns/op | 592 B/op | 2 allocs/op |
+
+## Development Status: Alpha
+
+Breaking changes are certain.
+
+<hr>
+Released under the [MIT License](LICENSE.txt).
+
+[doc-img]: https://godoc.org/github.com/uber-common/zap?status.svg
+[doc]: https://godoc.org/github.com/uber-common/zap
+[ci-img]: https://travis-ci.org/uber-common/zap.svg?branch=master
+[ci]: https://travis-ci.org/uber-common/zap
+[cov-img]: https://coveralls.io/repos/github/uber-common/zap/badge.svg?branch=master
+[cov]: https://coveralls.io/github/uber-common/zap?branch=master

glide.yaml

@@ -0,0 +1,20 @@
+package: github.com/akshayjshah/flog
+import:
+- package: github.com/stretchr/testify
+  subpackages:
+  - assert
+  - require
+- package: github.com/golang/lint
+  subpackages:
+  - golint
+- package: github.com/mattn/goveralls
+- package: github.com/Sirupsen/logrus
+- package: github.com/axw/gocov
+  subpackages:
+  - gocov
+- package: github.com/golang/glog
+- package: github.com/go-kit/kit
+  subpackages:
+  - log
+- package: gopkg.in/logfmt.v0
+- package: gopkg.in/stack.v1