From a113d1199d83977af2634a0967206a0691eef53c Mon Sep 17 00:00:00 2001
From: Nick <github@ngpixel.com>
Date: Mon, 28 Jan 2019 01:27:04 -0500
Subject: [PATCH] feat: (WIP) git storage module

---
 package.json                          |  1 +
 server/modules/storage/git/storage.js | 91 +++++++++++++++++++++++++++
 2 files changed, 92 insertions(+)

diff --git a/package.json b/package.json
index f0a261fa..471efb3c 100644
--- a/package.json
+++ b/package.json
@@ -154,6 +154,7 @@
     "scim-query-filter-parser": "1.1.0",
     "semver": "5.6.0",
     "serve-favicon": "2.5.0",
+    "simple-git": "1.107.0",
     "sqlite3": "4.0.6",
     "subscriptions-transport-ws": "0.9.15",
     "twemoji": "11.2.0",
diff --git a/server/modules/storage/git/storage.js b/server/modules/storage/git/storage.js
index ab25ce97..b05d8037 100644
--- a/server/modules/storage/git/storage.js
+++ b/server/modules/storage/git/storage.js
@@ -1,3 +1,47 @@
+const path = require('path')
+const sgit = require('simple-git/promise')
+const fs = require('fs-extra')
+const _ = require('lodash')
+
+const repoPath = path.join(WIKI.ROOTPATH, 'data/repo')
+
+/**
+ * Get file extension based on content type
+ */
+const getFileExtension = (contentType) => {
+  switch (contentType) {
+    case 'markdown':
+      return 'md'
+    case 'html':
+      return 'html'
+    default:
+      return 'txt'
+  }
+}
+
+/**
+ * Inject page metadata into contents
+ */
+const injectMetadata = (page) => {
+  let meta = [
+    ['title', page.title],
+    ['description', page.description]
+  ]
+  let metaFormatted = ''
+  switch (page.contentType) {
+    case 'markdown':
+      metaFormatted = meta.map(mt => `[//]: # ${mt[0]}: ${mt[1]}`).join('\n')
+      break
+    case 'html':
+      metaFormatted = meta.map(mt => `<!-- ${mt[0]}: ${mt[1]} -->`).join('\n')
+      break
+    default:
+      metaFormatted = meta.map(mt => `#WIKI ${mt[0]}: ${mt[1]}`).join('\n')
+      break
+  }
+  return `${metaFormatted}\n\n${page.content}`
+}
+
 module.exports = {
   async activated() {
 
@@ -6,18 +50,65 @@ module.exports = {
 
   },
   async init() {
+    await fs.ensureDir(repoPath)
+    const git = sgit(repoPath)
 
+    // Initialize repo (if needed)
+    const isRepo = await git.checkIsRepo()
+    if (!isRepo) {
+      await git.init()
+    }
+
+    // Checkout branch
+    await git.checkout(this.config.branch)
+
+    // Add remote
+    await git.raw(['config', '--local', '--bool', 'http.sslVerify', _.toString(this.config.verifySSL)])
+    switch (this.config.authType) {
+      case 'ssh':
+        await git.addConfig('core.sshCommand', `ssh -i "${this.config.sshPrivateKeyPath}" -o StrictHostKeyChecking=no`)
+        await git.addRemote('origin', this.config.repoUrl)
+        break
+      default:
+        await git.addRemote('origin', `https://${this.config.basicUsername}:${this.config.basicPassword}@${this.config.repoUrl}`)
+        break
+    }
   },
   async created() {
+    const fileName = `${this.page.path}.${getFileExtension(this.page.contentType)}`
+    const filePath = path.join(repoPath, fileName)
+    await fs.outputFile(filePath, injectMetadata(this.page), 'utf8')
 
+    const git = sgit(repoPath)
+    await git.add(`./${fileName}`).commit(`docs: create ${this.page.path}`, fileName, {
+      '--author': `"${this.page.authorName} <${this.page.authorEmail}>"`
+    })
   },
   async updated() {
+    const fileName = `${this.page.path}.${getFileExtension(this.page.contentType)}`
+    const filePath = path.join(repoPath, fileName)
+    await fs.outputFile(filePath, injectMetadata(this.page), 'utf8')
 
+    const git = sgit(repoPath)
+    await git.add(`./${fileName}`).commit(`docs: update ${this.page.path}`, fileName, {
+      '--author': `"${this.page.authorName} <${this.page.authorEmail}>"`
+    })
   },
   async deleted() {
+    const fileName = `${this.page.path}.${getFileExtension(this.page.contentType)}`
 
+    const git = sgit(repoPath)
+    await git.rm(`./${fileName}`).commit(`docs: delete ${this.page.path}`, fileName, {
+      '--author': `"${this.page.authorName} <${this.page.authorEmail}>"`
+    })
   },
   async renamed() {
+    const sourceFilePath = `${this.page.sourcePath}.${getFileExtension(this.page.contentType)}`
+    const destinationFilePath = `${this.page.destinationPath}.${getFileExtension(this.page.contentType)}`
 
+    const git = sgit(repoPath)
+    await git.mv(`./${sourceFilePath}`, `./${destinationFilePath}`).commit(`docs: rename ${this.page.sourcePath} to ${destinationFilePath}`, destinationFilePath, {
+      '--author': `"${this.page.authorName} <${this.page.authorEmail}>"`
+    })
   }
 }