Clean up build directory when publishing

package-lock.json

@@ -1507,6 +1507,20 @@
         "web3": "^1.2.1"
       },
       "dependencies": {
+        "glob": {
+          "version": "7.1.6",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
+          "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
+          "dev": true,
+          "requires": {
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
+          }
+        },
         "lodash": {
           "version": "4.17.15",
           "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
@@ -1520,6 +1534,17 @@
           "dev": true,
           "requires": {
             "rimraf": "^2.6.3"
+          },
+          "dependencies": {
+            "rimraf": {
+              "version": "2.7.1",
+              "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.7.1.tgz",
+              "integrity": "sha512-uWjbaKIK3T1OSVptzX7Nl6PvQ3qAGtKEtVRjRuazjfL3Bx5eI409VZSqgND+4UNnmzLVdPj9FqFJNPqBZFve4w==",
+              "dev": true,
+              "requires": {
+                "glob": "^7.1.3"
+              }
+            }
           }
         }
       }
@@ -4429,7 +4454,8 @@
     "acorn": {
       "version": "7.1.0",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.0.tgz",
-      "integrity": "sha512-kL5CuoXA/dgxlBbVrflsflzQ3PAas7RYZB52NOm/6839iVYJgKMJ3cQJD+t2i5+qFa8h3MDpEOJiS64E8JLnSQ=="
+      "integrity": "sha512-kL5CuoXA/dgxlBbVrflsflzQ3PAas7RYZB52NOm/6839iVYJgKMJ3cQJD+t2i5+qFa8h3MDpEOJiS64E8JLnSQ==",
+      "dev": true
     },
     "acorn-jsx": {
       "version": "5.1.0",
@@ -9068,6 +9094,11 @@
             "negotiator": "0.6.2"
           }
         },
+        "acorn": {
+          "version": "7.1.0",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.0.tgz",
+          "integrity": "sha512-kL5CuoXA/dgxlBbVrflsflzQ3PAas7RYZB52NOm/6839iVYJgKMJ3cQJD+t2i5+qFa8h3MDpEOJiS64E8JLnSQ=="
+        },
         "acorn-jsx": {
           "version": "5.1.0",
           "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.1.0.tgz",
@@ -21882,6 +21913,7 @@
             "@webassemblyjs/helper-module-context": "1.8.5",
             "@webassemblyjs/wasm-edit": "1.8.5",
             "@webassemblyjs/wasm-parser": "1.8.5",
+            "acorn": "^6.2.1",
             "ajv": "^6.10.2",
             "ajv-keywords": "^3.4.1",
             "chrome-trace-event": "^1.0.2",
@@ -21902,6 +21934,11 @@
             "webpack-sources": "^1.4.1"
           },
           "dependencies": {
+            "acorn": {
+              "version": "6.4.0",
+              "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.0.tgz",
+              "integrity": "sha512-gac8OEcQ2Li1dxIEWGZzsp2BitJxwkwcOm0zHAJLcPJaVvm58FRnk6RkuLRpU1EujipU2ZFODv2P9DLMfnV8mw=="
+            },
             "cacache": {
               "version": "12.0.3",
               "resolved": "https://registry.npmjs.org/cacache/-/cacache-12.0.3.tgz",
@@ -33076,18 +33113,18 @@
       "dev": true
     },
     "rimraf": {
-      "version": "2.7.1",
-      "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.7.1.tgz",
-      "integrity": "sha512-uWjbaKIK3T1OSVptzX7Nl6PvQ3qAGtKEtVRjRuazjfL3Bx5eI409VZSqgND+4UNnmzLVdPj9FqFJNPqBZFve4w==",
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz",
+      "integrity": "sha512-JZkJMZkAGFFPP2YqXZXPbMlMBgsxzE8ILs4lMIX/2o0L9UBw9O/Y3o6wFw/i9YLapcUJWwqbi3kdxIPdC62TIA==",
       "dev": true,
       "requires": {
         "glob": "^7.1.3"
       },
       "dependencies": {
         "glob": {
-          "version": "7.1.4",
-          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.4.tgz",
-          "integrity": "sha512-hkLPepehmnKk41pUGm3sYxoFs/umurYfYJCerbXEyFIWcAzvpipAgVkBqqT9RBKMGjnq6kMuyYwha6csxbiM1A==",
+          "version": "7.1.6",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
+          "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
           "dev": true,
           "requires": {
             "fs.realpath": "^1.0.0",
@@ -33701,6 +33738,31 @@
             "klaw": "^1.0.0",
             "path-is-absolute": "^1.0.0",
             "rimraf": "^2.2.8"
+          },
+          "dependencies": {
+            "rimraf": {
+              "version": "2.7.1",
+              "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.7.1.tgz",
+              "integrity": "sha512-uWjbaKIK3T1OSVptzX7Nl6PvQ3qAGtKEtVRjRuazjfL3Bx5eI409VZSqgND+4UNnmzLVdPj9FqFJNPqBZFve4w==",
+              "dev": true,
+              "requires": {
+                "glob": "^7.1.3"
+              }
+            }
+          }
+        },
+        "glob": {
+          "version": "7.1.6",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
+          "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
+          "dev": true,
+          "requires": {
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
           }
         },
         "js-sha3": {
@@ -33752,6 +33814,31 @@
             "klaw": "^1.0.0",
             "path-is-absolute": "^1.0.0",
             "rimraf": "^2.2.8"
+          },
+          "dependencies": {
+            "rimraf": {
+              "version": "2.7.1",
+              "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.7.1.tgz",
+              "integrity": "sha512-uWjbaKIK3T1OSVptzX7Nl6PvQ3qAGtKEtVRjRuazjfL3Bx5eI409VZSqgND+4UNnmzLVdPj9FqFJNPqBZFve4w==",
+              "dev": true,
+              "requires": {
+                "glob": "^7.1.3"
+              }
+            }
+          }
+        },
+        "glob": {
+          "version": "7.1.6",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
+          "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
+          "dev": true,
+          "requires": {
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
           }
         },
         "js-sha3": {

package.json

@@ -20,6 +20,7 @@
     "lint:js": "eslint --ignore-path .gitignore .",
     "lint:js:fix": "eslint --ignore-path .gitignore . --fix",
     "lint:sol": "solhint --max-warnings 0 \"contracts/**/*.sol\"",
+    "prepublish": "rimraf build contracts/build",
     "prepare": "npm run compile",
     "prepack": "node scripts/remove-ignored-artifacts.js",
     "release": "scripts/release/release.sh",
@@ -65,6 +66,7 @@
     "lodash.zip": "^4.2.0",
     "micromatch": "^4.0.2",
     "mocha": "^8.0.1",
+    "rimraf": "^3.0.2",
     "solhint": "^3.0.0",
     "solidity-coverage": "github:rotcivegaf/solidity-coverage#5875f5b7bc74d447f3312c9c0e9fc7814b482477",
     "solidity-docgen": "^0.5.3"