chore(v2): add lerna-changelog (#1952)

.gitignore

@@ -2,6 +2,7 @@
 .vscode
 .idea
 *.code-workspace
+.changelog
 
 node_modules
 

CHANGELOG-2.x.md

@@ -1,10 +1,14 @@
 # Docusaurus 2 Changelog
 
 ## Unreleased
-- More efficient hot reload & consistent generated file. 
-- Set babel `compact` options to `true` which removes "superfluous whitespace characters and line terminators.
-- Skip fileHash caching on production calculation to improve build performance. The runtime cache is only useful in development.
-- Obtain git timestamp for `showLastUpdateAuthor`/ `showLastUpdateTime` asynchronously instead of synchronously. This improves build performance greatly.  
+
+#### :running_woman: Performance
+* `docusaurus-plugin-content-docs`, `docusaurus-utils`, `docusaurus`
+  * [#1951](https://github.com/facebook/docusaurus/pull/1951) perf(v2): skip runtime fileHash cache in prod & get timestamp asynchronously ([@endiliey](https://github.com/endiliey))
+  * [#1950](https://github.com/facebook/docusaurus/pull/1950) perf(v2): more efficient hot reload & consistent filegen ([@endiliey](https://github.com/endiliey))
+
+#### Committers: 1
+- Endi ([@endiliey](https://github.com/endiliey))
 
 ## 2.0.0-alpha.33
 

lerna.json

@@ -2,5 +2,18 @@
   "lerna": "3.14.1",
   "version": "2.0.0-alpha.33",
   "npmClient": "yarn",
-  "useWorkspaces": true
+  "useWorkspaces": true,
+  "changelog": {
+    "repo": "facebook/docusaurus",
+    "labels": {
+      "tag: new feature": ":rocket: New Feature",
+      "tag: breaking change": ":boom: Breaking Change",
+      "tag: bug fix": ":bug: Bug Fix",
+      "tag: polish": ":nail_care: Polish",
+      "tag: documentation": ":memo: Documentation",
+      "tag: internal": ":house: Internal",
+      "tag: performance": ":running_woman: Performance"
+    },
+    "cacheDir": ".changelog"
+  }
 }

package.json

@@ -13,6 +13,7 @@
     "build": "yarn tsc && yarn build:v2",
     "build:v1": "yarn workspace docusaurus-1-website build",
     "build:v2": "yarn workspace docusaurus-2-website build",
+    "changelog": "lerna-changelog",
     "postinstall": "yarn tsc",
     "prettier": "prettier --config .prettierrc --write \"**/*.{js,ts}\"",
     "prettier:diff": "prettier --config .prettierrc --list-different \"**/*.{js,ts}\"",
@@ -57,6 +58,7 @@
     "husky": "^1.3.1",
     "jest": "^24.9.0",
     "lerna": "^3.18.1",
+    "lerna-changelog": "^0.8.2",
     "lint-staged": "^7.2.0",
     "picomatch": "^2.1.0",
     "prettier": "^1.18.2",