Cleanup build script output

The name of the executable ends up being shown when prompted for
keychain access and including the version doesn't look legit. Instead,
name the executable without the version but keep the version in the
tarball name.

script/build

@@ -24,35 +24,42 @@ do
   platform_split=(${platform//\// })
   GOOS=${platform_split[0]}
   GOARCH=${platform_split[1]}
+
+  mkdir -p "build/${GOOS}"
+
   output_name="cf-vault_${version}_${GOOS}_${GOARCH}"
 
   printf "==> Building %s\t%s\n" "$platform" "build/$output_name" | expand -t 30
 
 
   if [ $GOOS = "windows" ]; then
-    env GOOS=$GOOS GOARCH=$GOARCH go build -o "build/${output_name}.exe" -ldflags "-X github.com/jacobbednarz/cf-vault/cmd.Rev=${version_with_sha}" .
+    env GOOS=$GOOS GOARCH=$GOARCH go build -o "build/${GOOS}/cf-vault.exe" -ldflags "-X github.com/jacobbednarz/cf-vault/cmd.Rev=${version_with_sha}" .
   else
-    env GOOS=$GOOS GOARCH=$GOARCH go build -o "build/${output_name}" -ldflags "-X github.com/jacobbednarz/cf-vault/cmd.Rev=${version_with_sha}" .
+    env GOOS=$GOOS GOARCH=$GOARCH go build -o "build/${GOOS}/cf-vault" -ldflags "-X github.com/jacobbednarz/cf-vault/cmd.Rev=${version_with_sha}" .
   fi
   if [ $? -ne 0 ]; then
     echo "Building the binary has failed!"
     exit 1
   fi
 
+  touch build/checksums.txt
+
   printf "==> Tarballing %s\t%s\n" "$platform" "build/${output_name}.tar.gz" | expand -t 30
   if [ $GOOS = "windows" ]; then
-    tar -czf "build/${output_name}.tar.gz" -C "build" "${output_name}.exe"
+    tar -czf "build/${output_name}.tar.gz" -C "build/$GOOS" "cf-vault.exe"
   else
-    tar -czf "build/${output_name}.tar.gz" -C "build" "${output_name}"
+    tar -czf "build/${output_name}.tar.gz" -C "build/$GOOS" "cf-vault"
   fi
 
   if [ $? -ne 0 ]; then
     echo "Creating the tarball has failed!"
     exit 1
   fi
+
+  echo "==> Adding file checksums to build/checksums.txt"
+  shasum -a 256 build/$GOOS/* >> "build/checksums.txt"
 done
 
-echo "==> Generating file checksums to build/checksums.txt"
-shasum -a 256 build/* > "build/checksums.txt"
+shasum -a 256 build/*.tar.gz >> "build/checksums.txt"
 
 echo "==> Build process complete"