add missing do-release (oops)

do-release.sh

@@ -0,0 +1,50 @@
+#!/bin/sh
+set -e
+
+if [ $# -eq 0 ]; then
+    echo "Usage: $0 <tag>"
+    echo "Release version required as argument"
+    exit 1
+fi
+
+VERSION="$1"
+GIT_COMMIT=$(git rev-list -1 HEAD)
+BUILD_DATE=$(date)
+
+RELEASE_FILE=RELEASE.md
+
+LDFLAGS="-s -w \
+    -X \"github.com/naggie/dsnet.GIT_COMMIT=$GIT_COMMIT\" \
+    -X \"github.com/naggie/dsnet.VERSION=$VERSION\" \
+    -X \"github.com/naggie/dsnet.BUILD_DATE=$BUILD_DATE\"\
+"
+
+# get release information
+if ! test -f $RELEASE_FILE || head -n 1 $RELEASE_FILE | grep -vq $VERSION; then
+    # file doesn't exist or is for old version, replace
+    printf "$VERSION\n\n\n" > $RELEASE_FILE
+fi
+
+vim "+ normal G $" $RELEASE_FILE
+
+
+# build
+mkdir -p dist
+
+export GOOS=linux
+export CGO_ENABLED=0
+
+GOARCH=arm GOARM=5 go build -ldflags="$LDFLAGS" cmd/dsnet.go
+# upx -q dsnet
+mv dsnet dist/dsnet-linux-arm5
+
+GOARCH=amd64 go build -ldflags="$LDFLAGS" cmd/dsnet.go
+# upx -q dsnet
+mv dsnet dist/dsnet-linux-amd64
+
+hub release create \
+    --draft \
+    -a dist/dsnet-linux-arm5#"dsnet linux-arm5" \
+    -a dist/dsnet-linux-amd64#"dsnet linux-amd64" \
+    -F $RELEASE_FILE \
+    $1