49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
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#!/bin/env node
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import fs from 'fs'
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import sharp from 'sharp'
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import exif from 'exif'
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async function getExifOrientation(imagePath) {
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return new Promise((resolve, reject) => {
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new exif.ExifImage({ image: imagePath }, function (error, exifData) {
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if (error) {
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resolve(0)
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} else {
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resolve(exifData.image.Orientation)
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}
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})
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})
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}
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const dir = `${process.env.RUN_DIR}/data/uploads`
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const images = fs.readdirSync(dir)
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images.forEach(async (image) => {
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if (!image.match(/\.(jpe?g|webp|png)$/)) {
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return
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}
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console.log(image)
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const imagePath = `${dir}/${image}`
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const iamgeOutPath = `${dir}/r/${image}`
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const orientation = await getExifOrientation(imagePath)
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let sharpImg = sharp(imagePath)
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// when image is rotated to the left or right, switch width/height
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// https://jdhao.github.io/2019/07/31/image_rotation_exif_info/
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if (orientation === 6) {
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sharpImg = sharpImg.rotate()
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} else if (orientation === 3) {
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sharpImg = sharpImg.rotate().rotate()
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} else if (orientation === 8) {
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sharpImg = sharpImg.rotate().rotate().rotate()
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}
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const sizes = [
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[150, 100],
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[375, 210],
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]
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sizes.forEach(([w, h]) => {
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sharpImg.resize(w, h, {fit: 'contain'}).toFile(`${iamgeOutPath}-${w}x${h}.webp`)
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})
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})
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