Tweak build-pages.js (#636)

* switch to async/await
* add a `--verbose` flag to print the existent pages, otherwise skip showing them
* properly exit in case of failure
* tweak success output

1 files changed, 40 insertions, 25 deletions

diff --git a/build/build-pages.js b/build/build-pages.js
index 2315184fb..afa3e7a5f 100644
--- a/build/build-pages.js
+++ b/build/build-pages.js
@@ -2,48 +2,63 @@
 
 'use strict'
 
-const fs = require('fs')
+const fs = require('fs').promises
 const path = require('path')
 const chalk = require('chalk')
 
 const iconsDir = path.join(__dirname, '../icons/')
 const pagesDir = path.join(__dirname, '../docs/content/icons/')
 
+const VERBOSE = process.argv.includes('--verbose')
+
 function capitalizeFirstLetter(string) {
-  return string.charAt(0).toUpperCase() + string.slice(1)
+  return (string.charAt(0).toUpperCase() + string.slice(1)).split('-').join(' ')
 }
 
-(async () => {
-  try {
-    const files = await fs.promises.readdir(iconsDir)
-
-    for (const file of files) {
-      const iconBasename = path.basename(file, path.extname(file))
-      const iconTitle = capitalizeFirstLetter(iconBasename).split('-').join(' ')
-      const pageName = path.join(pagesDir, `${iconBasename}.md`)
+async function main(file) {
+  const iconBasename = path.basename(file, path.extname(file))
+  const iconTitle = capitalizeFirstLetter(iconBasename)
+  const pageName = path.join(pagesDir, `${iconBasename}.md`)
 
-      const pageTemplate = `---
+  const pageTemplate = `---
 title: ${iconTitle}
 categories:
 tags:
 ---
 `
 
-      fs.access(pageName, fs.F_OK, err => {
-        if (err) {
-          fs.writeFile(pageName, pageTemplate, err => {
-            if (err) {
-              throw err
-            }
-
-            console.log(chalk.green(`${iconBasename} successfully created`))
-          })
-        } else {
-          console.log(chalk.cyan(`${iconBasename}: Permalink already exists`))
-        }
-      })
+  try {
+    await fs.access(pageName, fs.F_OK)
+
+    if (VERBOSE) {
+      console.log(`${chalk.cyan(iconBasename)}: Page already exists; skipping`)
     }
+  } catch (_) {
+    await fs.writeFile(pageName, pageTemplate)
+    console.log(chalk.green(`${iconBasename}: Page created`))
+  }
+}
+
+(async () => {
+  try {
+    const basename = path.basename(__filename)
+    const timeLabel = chalk.cyan(`[${basename}] finished`)
+
+    console.log(chalk.cyan(`[${basename}] started`))
+    console.time(timeLabel)
+
+    const files = await fs.readdir(iconsDir)
+
+    await Promise.all(files.map(file => {
+      return main(file).catch(error => Promise.reject(error))
+    }))
+
+    const filesLength = files.length
+
+    console.log(chalk.green('\nSuccess, %s page%s prepared!'), filesLength, filesLength !== 1 ? 's' : '')
+    console.timeEnd(timeLabel)
   } catch (error) {
-    console.error(chalk.cyan(`Error: ${error}`))
+    console.error(error)
+    process.exit(1)
   }
 })()