fix: open in colab (#162)

functions/colab.js

@@ -0,0 +1,110 @@
+// Below imports are defined in
+// `external_node_modules` of [functions] in netlify.toml
+// They are required for this function to run
+
+import { v4 as uuidv4 } from 'uuid'
+import { Octokit } from '@octokit/core'
+import JSZip from 'jszip'
+
+const nbUid = uuidv4()
+const repoOwner = process.env.VUE_APP_GH_USER
+const repo = process.env.VUE_APP_GH_REPO
+
+/**
+ * Create a file on GitHub with Octokit.
+ * @param {string} content
+ * @param {string} filename
+ * @returns download_url
+ */
+async function pushToGitHub(content, filename) {
+  const octokit = new Octokit({
+    auth: process.env.VUE_APP_GH_TOKEN
+  })
+  try {
+    const res = await octokit.request(
+      'PUT /repos/{owner}/{repo}/contents/{path}',
+      {
+        owner: repoOwner,
+        repo: repo,
+        path: `nbs/${nbUid}/${filename}`,
+        message: `nb: add ${nbUid}`,
+        content: content
+      }
+    )
+    // the download url is raw url - https://raw.githubusercontent.com/...
+    return res.data.content.download_url
+  } catch (e) {
+    console.error(e)
+  }
+}
+
+// This function is the one Netlify function runs on
+// https://docs.netlify.com/functions/build-with-javascript/#synchronous-function-format
+export async function handler(event, _) {
+  // event is a JSON object
+  const data = JSON.parse(event.body)
+  const zip = new JSZip()
+  const code = data.code
+  const template = `ignite-${data.template}`
+  const nbName = `${template}.ipynb`
+
+  // As usual from Download component,
+  // we will zip the files and
+  // generate a base64 format for pushing to GitHub
+  // with Octokit.
+  for (const filename in code) {
+    zip.file(filename, code[filename])
+  }
+  const content = await zip.generateAsync({ type: 'base64' })
+  const zipRes = await pushToGitHub(content, `${template}.zip`)
+
+  const title = template
+    .replace('ignite-', '')
+    .split('-')
+    .map((v) => v[0].toUpperCase() + v.slice(1))
+    .join(' ')
+  // notebook cell structure
+  const nb = {
+    nbformat: 4,
+    nbformat_minor: 0,
+    metadata: {
+      kernelspec: {
+        display_name: 'Python 3',
+        name: 'python3'
+      },
+      accelerator: 'GPU'
+    },
+    cells: [
+      {
+        cell_type: 'markdown',
+        metadata: {},
+        execution_count: null,
+        outputs: [],
+        source: [
+          `# ${title} by PyTorch-Ignite Code-Generator\n\n`,
+          'Please, run the cell below to execute your code.'
+        ]
+      },
+      {
+        cell_type: 'code',
+        metadata: {},
+        execution_count: null,
+        outputs: [],
+        source: [
+          `!wget ${zipRes}\n`,
+          `!unzip ${template}.zip\n`,
+          '!pip install -r requirements.txt\n',
+          '!python main.py\n'
+        ]
+      }
+    ]
+  }
+  // Create the notebook on GitHub
+  await pushToGitHub(Buffer.from(JSON.stringify(nb)).toString('base64'), nbName)
+
+  const colabLink = `https://colab.research.google.com/github/${repoOwner}/${repo}/blob/main/nbs/${nbUid}/${nbName}`
+  return {
+    statusCode: 200,
+    body: colabLink
+  }
+}

netlify.toml

@@ -1,7 +1,13 @@
 [build.environment]
   NODE_VERSION = "14"
   PYTHON_VERSION = "3.7"
+  AWS_LAMBDA_JS_RUNTIME = "nodejs14.x"
 
 [build]
   publish = "./dist"
   command = "npx pnpm i --frozen-lockfile --store=node_modules/.pnpm-store && npx pnpm run build"
+  functions = "functions"
+
+[functions]
+  node_bundler = "esbuild"
+  external_node_modules = ["uuid", "jszip", "@octokit/core"]

package.json

@@ -14,6 +14,7 @@
   },
   "devDependencies": {
     "@iconify/iconify": "^2.0.1",
+    "@octokit/core": "^3.5.1",
     "@types/ejs": "^3.0.6",
     "@types/file-saver": "^2.0.2",
     "@types/jest": "^26.0.23",