Align custom scripts with generic scripts (#445)

Align custom scripts with generic scripts, making them configurable. This has a few advantages:

- script code is more unified,
- no more hard-coded method names in scripts, which is less error prone and make it easier to rename scripts,
- no more hard coded product names in scripts, which is less error prone and make it easier to rename products,
- less hard-coded URLs and regexes in scripts, which makes auto-configuration more expressive / updatable,

Also added method `endoflife.list_configs_from_argv()` so that it is easier to manipulate scripts arguments.

src/unrealircd.py

@@ -5,17 +5,18 @@ from common import dates, endoflife, http, releasedata
 
 DATE_PATTERN = re.compile(r"\d{4}-\d{2}-\d{2}")
 
-with releasedata.ProductData("unrealircd") as product_data:
-    response = http.fetch_url("https://www.unrealircd.org/docwiki/index.php?title=History_of_UnrealIRCd_releases&action=raw")
-    wikicode = mwparserfromhell.parse(response.text)
+for config in endoflife.list_configs_from_argv():
+    with releasedata.ProductData(config.product) as product_data:
+        response = http.fetch_url(config.url)
+        wikicode = mwparserfromhell.parse(response.text)
 
-    for tr in wikicode.ifilter_tags(matches=lambda node: node.tag == "tr"):
-        items = tr.contents.filter_tags(matches=lambda node: node.tag == "td")
-        if len(items) < 2:
-            continue
+        for tr in wikicode.ifilter_tags(matches=lambda node: node.tag == "tr"):
+            items = tr.contents.filter_tags(matches=lambda node: node.tag == "td")
+            if len(items) < 2:
+                continue
 
-        version = items[0].__strip__()
-        date_str = items[1].__strip__()
-        if endoflife.DEFAULT_VERSION_PATTERN.match(version) and DATE_PATTERN.match(date_str):
-            date = dates.parse_date(date_str)
-            product_data.declare_version(version, date)
+            version = items[0].__strip__()
+            date_str = items[1].__strip__()
+            if config.first_match(version) and DATE_PATTERN.match(date_str):
+                date = dates.parse_date(date_str)
+                product_data.declare_version(version, date)