90 lines
2.3 KiB
JavaScript
90 lines
2.3 KiB
JavaScript
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#!/usr/bin/env node
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const fs = require('fs');
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const zlib = require('zlib');
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const http = require('http');
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const https = require('https');
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const packageJSON = require('./package.json');
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// Determine the URL of the file.
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const platformName = {
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'darwin': 'macos',
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'linux': 'linux',
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'win32': 'windows'
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}[process.platform];
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let archName = {
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'x64': 'x64',
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'x86': 'x86',
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'ia32': 'x86',
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'arm64': 'arm64'
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}[process.arch];
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if (!platformName || !archName) {
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console.error(
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`Cannot install tree-sitter-cli for platform ${process.platform}, architecture ${process.arch}`
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);
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process.exit(1);
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}
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const releaseURL = `https://github.com/tree-sitter/tree-sitter/releases/download/v${packageJSON.version}`;
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const assetName = `tree-sitter-${platformName}-${archName}.gz`;
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const assetURL = `${releaseURL}/${assetName}`;
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// Remove previously-downloaded files.
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const executableName = process.platform === 'win32' ? 'tree-sitter.exe' : 'tree-sitter';
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if (fs.existsSync(executableName)) {
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fs.unlinkSync(executableName);
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}
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// Download the compressed file.
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console.log(`Downloading ${assetURL}`);
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const file = fs.createWriteStream(executableName);
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get(assetURL, response => {
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if (response.statusCode > 299) {
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console.error([
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'Download failed',
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'',
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`url: ${assetURL}`,
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`status: ${response.statusCode}`,
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`headers: ${JSON.stringify(response.headers, null, 2)}`,
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'',
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].join('\n'));
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process.exit(1);
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}
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response.pipe(zlib.createGunzip()).pipe(file);
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});
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file.on('finish', () => {
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fs.chmodSync(executableName, '755');
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});
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// Follow redirects.
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function get(url, callback) {
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const requestUrl = new URL(url)
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let request = https
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let requestConfig = requestUrl
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const proxyEnv = process.env['HTTPS_PROXY'] || process.env['https_proxy']
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if (proxyEnv) {
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const proxyUrl = new URL(proxyEnv)
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request = proxyUrl.protocol === 'https:' ? https : http
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requestConfig = {
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hostname: proxyUrl.hostname,
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port: proxyUrl.port,
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path: requestUrl.toString(),
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headers: {
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Host: requestUrl.hostname
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}
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}
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}
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request.get(requestConfig, response => {
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if (response.statusCode === 301 || response.statusCode === 302) {
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get(response.headers.location, callback);
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} else {
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callback(response);
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}
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});
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}
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