mirror of
https://github.com/lovell/sharp.git
synced 2025-07-09 18:40:16 +02:00
112 lines
3.3 KiB
JavaScript
112 lines
3.3 KiB
JavaScript
'use strict';
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var fs = require('fs');
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var path = require('path');
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var zlib = require('zlib');
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var semver = require('semver');
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var request = require('request');
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var tar = require('tar');
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var tmp = require('os').tmpdir();
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var distBaseUrl = 'https://dl.bintray.com/lovell/sharp/';
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var vipsHeaderPath = path.join(__dirname, 'include', 'vips', 'vips.h');
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// -- Helpers
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// Does this file exist?
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var isFile = function(file) {
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var exists = false;
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try {
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exists = fs.statSync(file).isFile();
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} catch (err) {}
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return exists;
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};
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var unpack = function(tarPath) {
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var extractor = tar.Extract({
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path: __dirname
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});
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extractor.on('error', error);
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extractor.on('end', function() {
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if (!isFile(vipsHeaderPath)) {
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error('Could not unpack ' + tarPath);
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}
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});
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fs.createReadStream(tarPath).on('error', error)
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.pipe(zlib.Unzip())
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.pipe(extractor);
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};
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// Error
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var 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('ERROR: ' + 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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// Has vips been installed locally?
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if (!isFile(vipsHeaderPath)) {
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// 32-bit
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if (process.arch === 'ia32') {
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error('32-bit systems require manual installation - please see http://sharp.dimens.io/en/stable/install/');
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}
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// Ensure libc >= 2.15
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var lddVersion = process.env.LDD_VERSION;
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if (lddVersion) {
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var libcVersion = lddVersion ? lddVersion.split(/\n/)[0].split(' ').slice(-1)[0].trim() : '';
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if (libcVersion && semver.lt(libcVersion + '.0', '2.15.0')) {
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error('libc version ' + libcVersion + ' requires manual installation - please see http://sharp.dimens.io/en/stable/install/');
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}
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}
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// Platform-specific .tar.gz
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var tarFilename = ['libvips', process.env.npm_package_config_libvips, process.platform.substr(0, 3)].join('-') + '.tar.gz';
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var tarPath = path.join(__dirname, 'packaging', tarFilename);
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if (isFile(tarPath)) {
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unpack(tarPath);
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} else {
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// Download
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tarPath = path.join(tmp, tarFilename);
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var tmpFile = fs.createWriteStream(tarPath).on('finish', function() {
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unpack(tarPath);
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});
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request(distBaseUrl + tarFilename).on('response', function(response) {
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if (response.statusCode !== 200) {
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error(distBaseUrl + tarFilename + ' status code ' + response.statusCode);
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}
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}).on('error', function(err) {
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error('Download from ' + distBaseUrl + tarFilename + ' failed: ' + err.message);
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}).pipe(tmpFile);
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}
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}
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};
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module.exports.use_global_vips = function() {
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var useGlobalVips = false;
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var globalVipsVersion = process.env.GLOBAL_VIPS_VERSION;
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if (globalVipsVersion) {
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useGlobalVips = semver.gte(
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globalVipsVersion,
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process.env.npm_package_config_libvips
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);
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}
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if (process.platform === 'darwin' && !useGlobalVips) {
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if (globalVipsVersion) {
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error(
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'Found libvips ' + globalVipsVersion + ' but require ' + process.env.npm_package_config_libvips +
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'\nPlease upgrade libvips by running: brew update && brew upgrade'
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);
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} else {
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error('Please install libvips by running: brew install homebrew/science/vips --with-webp --with-graphicsmagick');
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}
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}
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process.stdout.write(useGlobalVips ? 'true' : 'false');
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};
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