Update go version, reduce PNG file size, add goreleaser

.circleci/config.yml

@@ -1,25 +1,50 @@
-version: 2
+version: 2.1
+orbs:
+  gor: hubci/goreleaser@1.0.0
+  go: circleci/go@1.7.0
 
+workflows:
+  main:
+    jobs:
+      - test
+  release:
+    jobs:
+      - test:
+          filters:
+            branches:
+              ignore: /.*/
+            tags:
+              only: /^v\d+\.\d+\.\d+$/
+      - gor/release:
+          version: 0.147.1
+          go-version: 1.16.5
+          filters:
+            branches:
+              ignore: /.*/
+            tags:
+              only: /^v\d+\.\d+\.\d+$/
 jobs:
-  build:
-    docker:
-      - image: circleci/golang:1.14
-    working_directory: /go/src/github.com/remove-bg/go
+  test:
+    environment: # environment variables for the build itself
+      TEST_RESULTS: /tmp/test-results # path to where test results will be saved  
+    executor:
+      name: go/default
+      tag: '1.16.5'
     steps:
       - checkout
-      - run: echo 'export PATH=$GOPATH/bin:$PATH' >> "$BASH_ENV"
-      - restore_cache:
-          keys:
-            - vendor-{{ checksum "Gopkg.lock" }}
-      - run: bin/setup
-      - run: bin/test
-      - save_cache:
-          key: vendor-{{ checksum "Gopkg.lock" }}
-          paths:
-            - vendor
+      - run: mkdir -p $TEST_RESULTS # create the test results directory      
+      - go/load-cache
+      - go/mod-download
+      - go/save-cache      
+      - run:
+          name: Run unit tests
+          # store the results of our tests in the $TEST_RESULTS directory
+          command: |
+            PACKAGE_NAMES=$(go list ./... | circleci tests split --split-by=timings --timings-type=classname)
+            gotestsum --junitfile ${TEST_RESULTS}/gotestsum-report.xml -- $PACKAGE_NAMES
+      - store_artifacts: # upload test summary for display in Artifacts
+          path: /tmp/test-results
+          destination: raw-test-output
+      - store_test_results: # upload test results for display in Test Summary
+          path: /tmp/test-results
 
-workflows:
-  version: 2
-  build:
-    jobs:
-      - build

.gitignore

@@ -3,4 +3,5 @@ vendor
 .idea
 tmp
 removebg
-dist
+dist
+pkg

README.md

@@ -2,6 +2,12 @@
 
 [![CircleCI](https://circleci.com/gh/remove-bg/go.svg?style=shield)](https://circleci.com/gh/remove-bg/go)
 
+Run the test locally. Workflows cannot be run locally!
+
+```
+circleci local execute --job test
+```
+
 ## Installation
 
 ### Download

bin/setup

@@ -2,7 +2,5 @@
 
 set -euox pipefail
 
-dep ensure
-
 go get -u github.com/onsi/ginkgo/ginkgo
-go get -u github.com/maxbrunsfeld/counterfeiter
+go get -u github.com/maxbrunsfeld/counterfeiter/v6

composite/composite.go

@@ -1,6 +1,7 @@
 package composite
 
 import (
+	"github.com/foobaz/lossypng/lossypng"
 	"github.com/remove-bg/go/storage"
 
 	"archive/zip"
@@ -48,9 +49,13 @@ func (c Compositor) Process(inputZipPath string, outputImagePath string) error {
 	return nil
 }
 
-func (c Compositor) savePng(image *image.NRGBA, outputPath string) {
+func (c Compositor) savePng(image image.Image, outputPath string) {
+	compressedImage := lossypng.Compress(image, lossypng.NoConversion, 30)
 	buf := new(bytes.Buffer)
-	png.Encode(buf, image)
+	enc := &png.Encoder{
+		CompressionLevel: png.BestCompression,
+	}
+	enc.Encode(buf, compressedImage)
 	c.Storage.Write(outputPath, buf.Bytes())
 }
 

go.mod

@@ -0,0 +1,21 @@
+module kaleido.ai/go
+
+go 1.16
+
+require (
+	github.com/4kills/go-zlib v1.1.0 // indirect
+	github.com/bmatcuk/doublestar v1.3.4
+	github.com/foobaz/lossypng v0.0.0-20200814224715-48fa8819852a // indirect
+	github.com/joefitzgerald/rainbow-reporter v0.1.0 // indirect
+	github.com/mattn/go-colorable v0.1.8
+	github.com/maxbrunsfeld/counterfeiter/v6 v6.4.1 // indirect
+	github.com/onsi/ginkgo v1.16.4
+	github.com/onsi/gomega v1.13.0
+	github.com/remove-bg/go v1.3.1
+	github.com/sirupsen/logrus v1.8.1
+	github.com/spf13/cobra v1.2.1
+	golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c // indirect
+	golang.org/x/tools v0.1.4 // indirect
+	gopkg.in/AlecAivazis/survey.v1 v1.8.8
+	gopkg.in/h2non/gock.v1 v1.1.0
+)