fix #30: use brew bundle under the make brew

Author: kamilsk

tools/Brewfile

@@ -0,0 +1 @@
+brew "protobuf"

tools/Brewfile.lock.json

@@ -0,0 +1,39 @@
+{
+  "entries": {
+    "brew": {
+      "protobuf": {
+        "version": "3.10.0",
+        "bottle": {
+          "cellar": ":any",
+          "prefix": "/usr/local",
+          "files": {
+            "catalina": {
+              "url": "https://homebrew.bintray.com/bottles/protobuf-3.10.0.catalina.bottle.tar.gz",
+              "sha256": "7e1a09099cc918a87e5b8b8aa8720b5398ae140ca2cb49203afb9a12f873feb9"
+            },
+            "mojave": {
+              "url": "https://homebrew.bintray.com/bottles/protobuf-3.10.0.mojave.bottle.tar.gz",
+              "sha256": "b13a84b99a3c1655b6c0b1dacd7290b22ef8eb6ad321e5ce29372d4718e736be"
+            },
+            "high_sierra": {
+              "url": "https://homebrew.bintray.com/bottles/protobuf-3.10.0.high_sierra.bottle.tar.gz",
+              "sha256": "0795805e92c9a9166de9be8529910e6783cf5300ca03783313a3c15ae243232a"
+            }
+          }
+        }
+      }
+    }
+  },
+  "system": {
+    "macos": {
+      "catalina": {
+        "HOMEBREW_VERSION": "2.1.16",
+        "HOMEBREW_PREFIX": "/usr/local",
+        "Homebrew/homebrew-core": "a25b95559c376671a0379610ae18e8578c534799",
+        "CLT": "1100.0.33.12",
+        "Xcode": "11.0",
+        "macOS": "10.15.1"
+      }
+    }
+  }
+}

tools/Makefile

@@ -24,7 +24,7 @@ env:
 
 .PHONY: brew
 brew:
-	@brew list protobuf &>/dev/null || brew install protobuf
+	@brew bundle
 
 .PHONY: deps
 deps: