Add GoReleaser configuration

.gitignore

@@ -130,3 +130,5 @@ fabric.properties
 
 # Dependency directories (remove the comment below to include it)
 # vendor/
+
+dist/

.goreleaser.yml

@@ -0,0 +1,68 @@
+project_name: 'librespeed-cli'
+#dist: ./out
+before:
+  hooks:
+    - go mod download
+builds:
+- main: ./main.go
+  env:
+  - CGO_ENABLED=0
+  flags:
+    - -trimpath
+  ldflags:
+    - -w -s -X "librespeed-cli/defs.ProgName={{ .ProjectName }}" -X "librespeed-cli/defs.ProgVersion=v{{ .Version }}" -X "librespeed-cli/defs.BuildDate={{ .Date }}"
+  goos:
+    - windows
+    - linux
+    - darwin
+    - freebsd
+  goarch:
+    - 386
+    - amd64
+    - arm
+    - arm64
+    - mips
+    - mipsle
+    - mips64
+    - mips64le
+  goarm:
+    - 5
+    - 6
+    - 7
+  gomips:
+    - hardfloat
+    - softfloat
+  ignore:
+    - goos: darwin
+      goarch: 386
+  hooks:
+    post: ./upx.sh
+archives:
+  - format_overrides:
+      - goos: windows
+        format: zip
+    files:
+      - LICENSE
+checksum:
+  name_template: 'checksums.txt'
+changelog:
+  skip: false
+  sort: asc
+brews:
+  - github:
+      owner: librespeed
+      name: homebrew-tap
+    commit_author:
+      name: "Maddie Zhan"
+      email: maddie.zhan@gmail.com
+    folder: Formula
+    homepage: "https://github.com/librespeed/speedtest-cli"
+    description: "Command-line client for LibreSpeed"
+    skip_upload: true
+    custom_block: |
+      head "https://github.com/librespeed/speedtest-cli.git"
+release:
+  github:
+    owner: librespeed
+    name: speedtest-cli
+  disable: false

upx.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+(which upx > /dev/null && ls -1 dist/*/* | xargs -I{} -n1 -P 4 $(which upx) -9 "{}") || echo "not using upx for binary compression"