35 lines
1.1 KiB
JavaScript
35 lines
1.1 KiB
JavaScript
const fs = require('fs');
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const path = require('path');
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const download = require('download');
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const PROPERTIES = require('./properties.json');
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let fileExists = function(path) {
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return new Promise((resolve, reject) => {
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fs.access(path, fs.R_OK, error => {
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resolve(!error || error.code !== 'ENOENT');
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})
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});
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};
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const serverDownloadUrl = PROPERTIES.jarUrl;
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const serverHome = path.join(__dirname, 'server');
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const localFileName = path.join(serverHome, 'boot-java-language-server.jar');
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fileExists(localFileName).then(exists => {
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if (!exists) {
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console.log(`Downloading ${serverDownloadUrl} to ${localFileName}`);
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fileExists(serverHome)
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.then(doesExist => { if (!doesExist) fs.mkdir(serverHome) })
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.then(() => download(serverDownloadUrl))
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.then(data => fs.writeFileSync(localFileName, data))
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.then(() => fileExists(localFileName))
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.then(doesExist => { if (!doesExist) throw Error(`Failed to install the ${this.getServerName()} language server`) })
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.then(() => console.log(`Successfully downloaded ${serverDownloadUrl}`));
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}
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});
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