Add goreleaser snapshot (#63)

.drone.yml

@@ -9,6 +9,9 @@ clone:
 steps:
   - name: lint
     image: golangci/golangci-lint:v1.39.0-alpine
+    volumes:
+      - name: deps
+        path: /go
     commands:
       - apk add libpcap-dev libc-dev linux-headers
       - golangci-lint run -v
@@ -18,11 +21,30 @@ steps:
 
   - name: test & build
     image: golang:1.16-alpine
+    volumes:
+      - name: deps
+        path: /go
     commands:
       - apk add libpcap-dev libc-dev gcc linux-headers
       - go test ./... -v -cover
       - go build -ldflags "-w -s"
 
+  - name: goreleaser-snapshot
+    image: golang:1.16-alpine
+    volumes:
+      - name: deps
+        path: /go
+    commands:
+      - apk add libpcap-dev libc-dev gcc linux-headers curl git
+      - curl -s https://raw.githubusercontent.com/goreleaser/get/master/get > goreleaser.sh
+      - chmod +x goreleaser.sh && ./goreleaser.sh --snapshot
+    when:
+      event: push
+
+volumes:
+  - name: deps
+    temp: {}
+
 trigger:
   branch:
     - master

.goreleaser.yml

@@ -10,10 +10,8 @@ builds:
     flags:
       - -trimpath
     ldflags:
-      - -s -w -X main.version={{.Version}} -X main.commit={{.Commit}}
+      - -linkmode external -extldflags '-static' -s -w -X main.version={{.Version}} -X main.commit={{.Commit}}
     mod_timestamp: '{{ .CommitTimestamp }}'
-    hooks:
-      post: upx {{.Path}}
 archives:
   - files:
       - none*
@@ -25,3 +23,5 @@ changelog:
     exclude:
       - '^docs:'
       - '^test:'
+      - Merge pull request
+      - Update README