mirror of
https://github.com/lovell/sharp.git
synced 2025-07-09 18:40:16 +02:00
111 lines
3.6 KiB
JavaScript
111 lines
3.6 KiB
JavaScript
'use strict';
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const fs = require('fs');
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const os = require('os');
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const path = require('path');
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const caw = require('caw');
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const simpleGet = require('simple-get');
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const semver = require('semver');
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const tar = require('tar');
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const detectLibc = require('detect-libc');
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const platform = require('./lib/platform');
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// Use NPM-provided environment variable where available, falling back to require-based method for Electron
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const minimumLibvipsVersion = process.env.npm_package_config_libvips || require('./package.json').config.libvips;
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const distBaseUrl = process.env.SHARP_DIST_BASE_URL || `https://github.com/lovell/sharp-libvips/releases/download/v${minimumLibvipsVersion}/`;
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// -- Helpers
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const unpack = function (tarPath, done) {
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const vendorPath = path.join(__dirname, 'vendor');
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fs.mkdirSync(vendorPath);
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tar
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.extract({
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file: tarPath,
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cwd: vendorPath,
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strict: true
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})
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.then(done)
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.catch(error);
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};
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const error = function (msg) {
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if (msg instanceof Error) {
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msg = msg.message;
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}
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process.stderr.write(`sharp: ${msg}\n`);
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process.exit(1);
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};
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// -- Binary downloaders
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module.exports.download_vips = function () {
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// Check for existing vendored binaries and verify platform matches
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const currentPlatformId = platform();
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try {
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const vendorPlatformId = require(path.join(__dirname, 'vendor', 'platform.json'));
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if (currentPlatformId === vendorPlatformId) {
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return;
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} else {
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error(`'${vendorPlatformId}' binaries cannot be used on the '${currentPlatformId}' platform. Please remove the 'node_modules/sharp/vendor' directory and run 'npm install'.`);
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}
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} catch (err) {}
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// Ensure Intel 64-bit or ARM
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const arch = process.env.npm_config_arch || process.arch;
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if (arch === 'ia32') {
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error('Intel Architecture 32-bit systems require manual installation of libvips - please see http://sharp.dimens.io/page/install');
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}
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// Ensure glibc Linux
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if (detectLibc.isNonGlibcLinux) {
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error(`Use with ${detectLibc.family} libc requires manual installation of libvips - please see http://sharp.dimens.io/page/install`);
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}
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// Ensure glibc >= 2.13
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if (detectLibc.family === detectLibc.GLIBC && detectLibc.version && semver.lt(`${detectLibc.version}.0`, '2.13.0')) {
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error(`Use with glibc version ${detectLibc.version} requires manual installation of libvips - please see http://sharp.dimens.io/page/install`);
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}
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// Arch/platform-specific .tar.gz
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const tarFilename = ['libvips', minimumLibvipsVersion, currentPlatformId].join('-') + '.tar.gz';
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// Download to per-process temporary file
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const tarPathTemp = path.join(os.tmpdir(), `${process.pid}-${tarFilename}`);
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const tmpFile = fs.createWriteStream(tarPathTemp).on('finish', function () {
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unpack(tarPathTemp, function () {
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// Attempt to remove temporary file
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try {
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fs.unlinkSync(tarPathTemp);
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} catch (err) {}
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});
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});
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const url = distBaseUrl + tarFilename;
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const simpleGetOpt = {
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url: url,
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agent: caw(null, {
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protocol: 'https'
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})
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};
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simpleGet(simpleGetOpt, function (err, response) {
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if (err) {
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error(`${url} download failed: ${err.message}`);
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}
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if (response.statusCode !== 200) {
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error(`${url} download failed: status ${response.statusCode}`);
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}
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response.pipe(tmpFile);
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});
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};
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module.exports.use_global_vips = function () {
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const globalVipsVersion = process.env.GLOBAL_VIPS_VERSION;
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if (globalVipsVersion) {
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const useGlobalVips = semver.gte(
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globalVipsVersion,
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minimumLibvipsVersion
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);
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process.stdout.write(useGlobalVips ? 'true' : 'false');
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} else {
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process.stdout.write('false');
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}
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};
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