Adapt for Gitbook v4

.eslintignore

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+# Plugin assets
+_assets/plugin.js

.eslintrc

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+{
+    "extends": "gitbook/plugin"
+}

.gitignore

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+# Logs
+logs
+*.log
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directory
+# Deployed apps should consider commenting this line out:
+# see https://npmjs.org/doc/faq.html#Should-I-check-my-node_modules-folder-into-git
+node_modules
+
+# vim swapfile
+*.swp
+
+# Plugin assets
+_assets/plugin.js

.npmignore

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+# Publish assets on NPM
+!_assets/plugin.js

index.js

@@ -1,10 +1,10 @@
+
 module.exports = {
-
-  website: {
-    assets: './assets',
-    js: [
-      'plugin.js'
-    ]
-  }
+    blocks: {
+
+    },
+
+    hooks: {
 
+    }
 };

package.json

@@ -1,32 +1,50 @@
 {
-    "name": "gitbook-plugin-github",
-    "version": "2.0.0",
-    "description": "Display a link to your GitHub repo in your gitbook",
-    "main": "index.js",
-    "authors": [
-        {
-            "name": "Michael Jackson"
-        },
-        {
-            "name": "Samy Pessé",
-            "email": "samy@gitbook.com"
-        }
-    ],
-    "repository": {
-        "type": "git",
-        "url": "https://github.com/GitbookIO/plugin-github.git"
+  "title": "Github Sharing",
+  "name": "gitbook-plugin-github",
+  "version": "2.0.0",
+  "description": "Display a link to your GitHub repo in your gitbook",
+  "keywords": ["gitbook:social", "github", "sharing", "repository"],
+  "main": "index.js",
+  "authors": [
+    {
+      "name": "Michael Jackson"
     },
-    "license": "Apache-2.0",
-    "engines": {
-        "gitbook": ">=2.5.0"
-    },
-    "gitbook": {
-        "properties": {
-            "url": {
-                "type": "string",
-                "required": true,
-                "title": "URL to your GitHub repository"
-            }
-        }
+    {
+      "name": "Samy Pessé",
+      "email": "samy@gitbook.com"
+    }
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/GitbookIO/plugin-github.git"
+  },
+  "license": "Apache-2.0",
+  "browser": "./_assets/plugin.js",
+  "ebook": "./_assets/plugin.js",
+  "dependencies": {
+    "gitbook-core": "^4.0.0"
+  },
+  "devDependencies": {
+    "gitbook-plugin": "^4.0.0",
+    "eslint": "3.7.1",
+    "eslint-config-gitbook": "1.4.0"
+  },
+  "engines": {
+    "gitbook": ">=4.0.0-alpha.0"
+  },
+  "gitbook": {
+    "properties": {
+      "url": {
+        "type": "string",
+        "required": true,
+        "title": "URL to your GitHub repository"
+      }
     }
+  },
+  "scripts": {
+    "lint": "eslint ./",
+    "build-website": "gitbook-plugin build ./src/index.js ./_assets/plugin.js",
+    "prepublish": "npm run build-website",
+    "test": "gitbook-plugin test && npm run lint"
+  }
 }

src/components/GitHubButton.js

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+const GitBook = require('gitbook-core');
+const { React } = GitBook;
+
+/**
+ * Display a button that links to the GitHub repository
+ */
+const SharingButtons = React.createClass({
+    propTypes: {
+        url: React.PropTypes.string.isRequired
+    },
+
+    render() {
+        const { url } = this.props;
+
+        return (
+            <GitBook.ButtonGroup>
+                <GitBook.Button active={Boolean(url)}
+                                onClick={() => window.open(url)}>
+                    <GitBook.Icon id="github"/>
+                </GitBook.Button>
+            </GitBook.ButtonGroup>
+        );
+    }
+});
+
+function mapStateToProps(state) {
+    const url = state.config.getIn(['pluginsConfig', 'github', 'url']);
+
+    return {
+        url
+    };
+}
+
+module.exports = GitBook.connect(SharingButtons, mapStateToProps);

src/index.js

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+const GitBook = require('gitbook-core');
+const GitHubButton = require('./components/GitHubButton');
+
+module.exports = GitBook.createPlugin({
+    activate: (dispatch, getState, { Components }) => {
+        // Dispatch initialization actions
+        dispatch(Components.registerComponent(GitHubButton, { role: 'toolbar:buttons:right' }));
+    }
+});