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85 lines
2.2 KiB
85 lines
2.2 KiB
const fs = require('fs-extra')
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const os = require('os')
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const path = require('path')
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const util = require('util')
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const exec = util.promisify(require('child_process').exec)
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const { pipeline } = require('stream/promises')
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module.exports = {
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key: 'sharp',
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title: 'Sharp',
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description: 'Process and transform images. Required to generate thumbnails of uploaded images and perform transformations.',
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async isCompatible () {
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return os.arch() === 'x64'
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},
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isInstalled: false,
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isInstallable: true,
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async check () {
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this.isInstalled = await fs.pathExists(path.join(process.cwd(), 'node_modules/sharp/wiki_installed.txt'))
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return this.isInstalled
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},
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async install () {
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try {
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const { stdout, stderr } = await exec('node install/libvips && node install/dll-copy', {
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cwd: path.join(process.cwd(), 'node_modules/sharp'),
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timeout: 120000,
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windowsHide: true
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})
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await fs.ensureFile(path.join(process.cwd(), 'node_modules/sharp/wiki_installed.txt'))
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this.isInstalled = true
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WIKI.logger.info(stdout)
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WIKI.logger.warn(stderr)
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} catch (err) {
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WIKI.logger.error(err)
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}
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},
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sharp: null,
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async load () {
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if (!this.sharp) {
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this.sharp = require('sharp')
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}
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},
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/**
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* RESIZE IMAGE
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*/
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async resize ({
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format = 'png',
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inputStream = null,
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inputPath = null,
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outputStream = null,
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outputPath = null,
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width = null,
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height = null,
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fit = 'cover',
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background = { r: 0, g: 0, b: 0, alpha: 0 }
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}) {
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this.load()
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if (inputPath) {
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inputStream = fs.createReadStream(inputPath)
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}
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if (!inputStream) {
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throw new Error('Failed to open readable input stream for image resizing.')
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}
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if (outputPath) {
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outputStream = fs.createWriteStream(outputPath)
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}
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if (!outputStream) {
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throw new Error('Failed to open writable output stream for image resizing.')
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}
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if (format === 'svg') {
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return pipeline([inputStream, outputStream])
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} else {
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const transformer = this.sharp().resize({
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width,
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height,
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fit,
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background
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}).toFormat(format)
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return pipeline([inputStream, transformer, outputStream])
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}
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}
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}
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