Import initial.

scripts/metalsmith-statistics-plugin.js

@@ -0,0 +1,63 @@
+const path = require('path')
+const Table = require('cli-table2')
+const filesize = require('filesize')
+
+module.exports = plugin
+
+function generateFileMap (files) {
+  return Object.keys(files).reduce((map, filename) => {
+    const file = files[filename]
+    const parsedFilename = path.parse(filename)
+    const ext = parsedFilename.ext.substr(1)
+    const extFiles = map[ext] || []
+    return {
+      ...map,
+      [ext]: [
+        ...extFiles,
+        {
+          file,
+          filename
+        }
+      ]
+    }
+  }, {})
+}
+
+function plugin () {
+  return (files, metalsmith, done) => {
+    const fileMap = generateFileMap(files)
+    const fileTypes = Object.keys(fileMap)
+
+    // File overview table
+    fileTypes.forEach((filetype) => {
+      const fileTypeFiles = fileMap[filetype]
+      const count = fileTypeFiles.length
+      const size = fileTypeFiles.reduce((totalsize, entry) => {
+        // Some plugins (eg. metalsmith-data-markdown) replace the Buffer by a string
+        if (typeof entry.file.contents === 'string') {
+          return totalsize + entry.file.contents.length
+        } else {
+          return totalsize + entry.file.contents.byteLength
+        }
+      }, 0)
+      const filenamesTable = new Table({
+        head: [`${count} ${filetype}-${count > 1 ? 'files' : 'file'} with total ${filesize(size)}`, 'File size'],
+        wordWrap: true,
+        colWidths: [process.stdout.columns - 16, 12]
+      })
+      fileTypeFiles.forEach((entry) => {
+        let size = 0
+        // Some plugins (eg. metalsmith-data-markdown) replace the Buffer by a string
+        if (typeof entry.file.contents === 'string') {
+          size = entry.file.contents.length
+        } else {
+          size = entry.file.contents.byteLength
+        }
+        filenamesTable.push([entry.filename, size])
+      })
+      console.log(filenamesTable.toString())
+    })
+
+    done()
+  }
+}