#257: replace sync-request with curl

package.json

@@ -13,7 +13,6 @@
     "marked": "^4.3.0",
     "relative": "^3.0.2",
     "semver": "^7.7.2",
-    "sync-request": "^6.1.0",
     "xmlhttprequest": "^1.8.0"
   },
   "description": "A collection of command line tools for EOLANG: compiling, parsing, transpiling to other languages, optimizing, and analyzing",

src/parser-version.js

@@ -4,49 +4,54 @@
  */
 
 const {XMLParser} = require('fast-xml-parser');
-const request = require('sync-request'),
+const {execSync} = require('child_process');
 
-  /**
- * Load the latest version from GitHub releases.
+const repo = 'org/eolang/eo-maven-plugin';
+const base = 'https://repo.maven.apache.org/maven2';
+
+/**
+ * Load the latest version from Maven Central.
  * @return {String} Latest version, for example '0.23.1'
  */
-  version = module.exports = {
-    value: '',
-    get() {
-      if (version.value === '') {
-        const repo = 'org/eolang/eo-maven-plugin',
-          url = `https://repo.maven.apache.org/maven2/${repo}/maven-metadata.xml`,
-          res = request('GET', url, {timeout: 100000, socketTimeout: 100000});
-        if (res.statusCode !== 200) {
-          throw new Error(`Invalid response status #${res.statusCode} from ${url}: ${res.body}`);
-        }
-        const xml = new XMLParser().parse(res.body);
-        version.value = xml.metadata.versioning.release;
-        console.info('The latest version of %s at %s is %s', repo, url, version.value);
-      }
-      return version.value;
-    },
-    /**
-     * Check if a specific parser version exists in Maven Central.
-     * @param {String} ver - Version to check, for example '0.23.1'
-     * @return {Boolean} True if version exists, false otherwise
-     */
-    exists(ver) {
-      let result;
-      if (ver && ver !== 'undefined') {
-        try {
-          const repo = 'org/eolang/eo-maven-plugin',
-            artifactId = 'eo-maven-plugin',
-            url = `https://repo.maven.apache.org/maven2/${repo}/${ver}/${artifactId}-${ver}.pom`,
-            res = request('GET', url, {timeout: 10000, socketTimeout: 10000});
-          result = res.statusCode === 200;
-        } catch (e) {
-          console.debug('Unable to validate parser version (network error): %s', e.message);
-          result = false;
-        }
-      } else {
-        result = false;
+const version = module.exports = {
+  value: '',
+  get() {
+    if (version.value === '') {
+      const url = `${base}/${repo}/maven-metadata.xml`;
+      let body;
+      try {
+        body = execSync(
+          `curl -sL --fail --max-time 30 "${url}"`,
+          {encoding: 'utf8', timeout: 35000}
+        );
+      } catch (e) {
+        throw new Error(`Failed to fetch ${url}: ${e.message}`, {cause: e});
       }
-      return result;
+      const xml = new XMLParser().parse(body);
+      version.value = xml.metadata.versioning.release;
+      console.info('The latest version of %s at %s is %s', repo, url, version.value);
+    }
+    return version.value;
+  },
+  /**
+   * Check if a specific parser version exists in Maven Central.
+   * @param {String} ver - Version to check, for example '0.23.1'
+   * @return {Boolean} True if version exists, false otherwise
+   */
+  exists(ver) {
+    if (!ver || ver === 'undefined') {
+      return false;
+    }
+    const artifactId = 'eo-maven-plugin';
+    const url = `${base}/${repo}/${ver}/${artifactId}-${ver}.pom`;
+    try {
+      execSync(
+        `curl -sL -o /dev/null --fail --max-time 10 "${url}"`,
+        {timeout: 15000}
+      );
+      return true;
+    } catch {
+      return false;
     }
-  };
+  }
+};