103 lines
2.2 KiB
Dart
103 lines
2.2 KiB
Dart
import 'dart:io';
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import 'package:http/http.dart' as http;
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import 'package:html/parser.dart' as parser;
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import 'package:html/dom.dart';
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/// Entry point of the script.
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main(List<String> args) async {
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String path = "./version.txt";
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String recipient = "";
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String eclipseUrl = "https://eclipse.org/downloads/eclipse-packages/";
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String oldVersion = "";
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/// Parse the given arguments.
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if (args.length == 3) {
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if (args[0] == "--file" || args[0] == "-f") {
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path = args[1];
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recipient = args[2];
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} else {
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help();
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}
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} else if (args.length == 1){
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if (args[0] == "--help" || args[0] == "-h") {
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help();
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} else {
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recipient = args[0];
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}
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} else if (args.length == 0) {
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help();
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}
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if (!recipient.contains("@")) {
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print("No correct mail address given.");
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exit(-1);
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}
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http.Response response = await http.get(eclipseUrl);
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if (response.body.trim().isEmpty) {
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print("Website not available");
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exit(1);
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}
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Document document = parser.parse(response.body);
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String version = document.getElementById("descriptionText").text;
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if (version.trim().isEmpty) {
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print("No version information available.");
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exit(1);
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}
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if (!version.contains("(") || !version.contains(")")) {
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print("Version format seems to have changed.");
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print("Version string: $version");
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exit(2);
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}
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version = version.split("(")[1].split(")")[0].trim();
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File file = new File(path);
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if (await file.exists()) {
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oldVersion = await file.readAsString();
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oldVersion = oldVersion.trim();
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} else {
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oldVersion = "";
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}
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if (oldVersion == version) {
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print("No version change");
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exit(0);
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}
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file.writeAsString(version);
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print("A new version is available!");
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/// Send mail using the mail command.
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await Process.run(
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"mail",
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["-s", "New Eclipse Version: $version", recipient],
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runInShell: true
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);
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}
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/// Print the help text and exit the program.
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help() {
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print("""
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Eclipse Version Scraping
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2017 (c) Marcel Kapfer
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Licensed under GNU GPL v3
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dart bin/main.dart [options] recipient
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-h | --help Print this help and exit
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-f | --file File to use for saving the version.""");
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exit(0);
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} |