fix: patch postcss 7 and bundle it in the published npm package

.gitignore

@@ -4,3 +4,4 @@ node_modules
 dist
 coverage
 .idea
+third_party

package.json

@@ -6,12 +6,17 @@
   "typings": "dist/index.d.ts",
   "files": [
     "dist",
-    "lib"
+    "lib",
+    "third_party"
   ],
   "scripts": {
     "lint": "prettier --write \"{lib,test}/**/*.ts\"",
+    "pretest": "yarn clean && yarn patch-postcss",
     "test": "prettier --list-different \"{lib,test}/**/*.ts\" && jest --coverage",
-    "build": "rm -rf dist && tsc",
+    "clean": "rm -rf dist third_party",
+    "patch-postcss": "patch-package && mkdir -p third_party/postcss && cp -R node_modules/postcss third_party/",
+    "prebuild": "yarn clean && yarn patch-postcss",
+    "build": "ttsc",
     "prepublishOnly": "yarn build && conventional-changelog -p angular -r 2 -i CHANGELOG.md -s"
   },
   "gitHooks": {
@@ -46,11 +51,15 @@
     "jest": "^24.0.0",
     "less": "^3.9.0",
     "lint-staged": "^8.1.1",
+    "patch-package": "^6.4.7",
+    "postcss": "^7.0.35",
     "pug": "^2.0.3",
     "sass": "^1.17.3",
     "stylus": "^0.54.5",
     "ts-jest": "^24.0.0",
+    "ttypescript": "^1.5.12",
     "typescript": "^3.3.0",
+    "typescript-transform-paths": "^2.2.4",
     "vue": "^2.6.6",
     "vue-template-compiler": "^2.6.6",
     "yorkie": "^2.0.0"
@@ -60,7 +69,6 @@
     "hash-sum": "^1.0.2",
     "lru-cache": "^4.1.2",
     "merge-source-map": "^1.1.0",
-    "postcss": "^7.0.14",
     "postcss-selector-parser": "^6.0.2",
     "source-map": "~0.6.1",
     "vue-template-es2015-compiler": "^1.9.0"

patches/postcss+7.0.35.patch

@@ -0,0 +1,18 @@
+diff --git a/node_modules/postcss/lib/previous-map.js b/node_modules/postcss/lib/previous-map.js
+index 49f99ad..ef0066d 100644
+--- a/node_modules/postcss/lib/previous-map.js
++++ b/node_modules/postcss/lib/previous-map.js
+@@ -86,11 +86,11 @@ var PreviousMap = /*#__PURE__*/function () {
+   };
+
+   _proto.getAnnotationURL = function getAnnotationURL(sourceMapString) {
+-    return sourceMapString.match(/\/\*\s*# sourceMappingURL=(.*)\s*\*\//)[1].trim();
++    return sourceMapString.match(/\/\*\s*# sourceMappingURL=(.*)\*\//)[1].trim()
+   };
+
+   _proto.loadAnnotation = function loadAnnotation(css) {
+-    var annotations = css.match(/\/\*\s*# sourceMappingURL=(.*)\s*\*\//mg);
++    var annotations = css.match(/\/\*\s*# sourceMappingURL=.*\*\//gm);
+
+     if (annotations && annotations.length > 0) {
+       // Locate the last sourceMappingURL to avoid picking up

tsconfig.json

@@ -17,6 +17,13 @@
     "lib": [
       "es6",
       "es7"
+    ],
+    "paths": {
+      "postcss": ["third_party/postcss"]
+    },
+    "plugins": [
+      { "transform": "typescript-transform-paths" },
+      { "transform": "typescript-transform-paths", "afterDeclarations": true }
     ]
   },
   "include": [