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/rds.py

@@ -1,7 +1,7 @@
-import re
+import logging
 
 from bs4 import BeautifulSoup
-from common import dates, http, releasedata
+from common import dates, endoflife, http, releasedata
 
 """Fetches Amazon RDS versions from the version management pages on AWS docs.
 
@@ -9,16 +9,9 @@ Pages parsed by this script are expected to have version tables with a version i
 in the third column (usually named 'RDS release date').
 """
 
-PRODUCTS = {
-    "amazon-rds-mysql": "https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/MySQL.Concepts.VersionMgmt.html",
-    "amazon-rds-postgresql": "https://docs.aws.amazon.com/AmazonRDS/latest/PostgreSQLReleaseNotes/postgresql-release-calendar.html",
-    "amazon-rds-mariadb": "https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/MariaDB.Concepts.VersionMgmt.html",
-}
-VERSION_REGEX = re.compile(r"(?P<version>\d+(?:\.\d+)*)", flags=re.IGNORECASE)  # https://regex101.com/r/BY1vwV/1
-
-for product_name, url in PRODUCTS.items():
-    with releasedata.ProductData(product_name) as product_data:
-        response = http.fetch_url(url)
+for config in endoflife.list_configs_from_argv():
+    with releasedata.ProductData(config.product) as product_data:
+        response = http.fetch_url(config.url)
         soup = BeautifulSoup(response.text, features="html5lib")
 
         for table in soup.find_all("table"):
@@ -27,8 +20,12 @@ for product_name, url in PRODUCTS.items():
                 if len(columns) <= 3:
                     continue
 
-                version_match = VERSION_REGEX.search(columns[0].text.strip())
-                if version_match:
-                    version = version_match.group("version")
-                    date = dates.parse_date(columns[2].text)
-                    product_data.declare_version(version, date)
+                version_text = columns[0].text.strip()
+                version_match = config.first_match(version_text)
+                if not version_match:
+                    logging.warning(f"Skipping {version_text}: does not match any version pattern")
+                    continue
+
+                version = config.render(version_match)
+                date = dates.parse_date(columns[2].text)
+                product_data.declare_version(version, date)