[aws-lambda] Refactor script (#215)

Make the script more readable, mostly by:

- using the endoflife.Product class,
- removing the unnecessary use of functions,
- a little bit of renaming.

src/aws-lambda.py

@@ -3,56 +3,48 @@ from common import http
 from common import endoflife
 from datetime import datetime
 
-"""Fetch new AWS lambda runtimes from https://docs.aws.amazon.com.
+"""Fetches AWS lambda runtimes from https://docs.aws.amazon.com.
 
-This script does not retrieve release dates, as they are only available
-in release announcements. Instead, it uses the release dates from the
-endoflife.date product file. This has the advantage of being warned
-about new releases, without having releaseDate information (wrongly)
-updated.
+This script does not retrieve release dates, as they are only available in release announcements.
+Instead, it uses the release dates from the endoflife.date product file. This has the advantage of
+being warned about new releases, without having releaseDate information (wrongly) updated.
 
-If one day release dates are available in the AWS documentation, it would
-be better to make use them though. Note that this would also be unnecessary
-if it was possible to disable release / latest release dates updates in the
-latest.py script.
-"""
-
-PRODUCT = 'aws-lambda'
-URL = 'https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html'
+If one day release dates are available in the AWS documentation, it would be better to make use
+them though. Note that this would also be unnecessary if it was possible to disable release/latest
+release dates updates in the latest.py script."""
 
 
-def fetch_product_file_release_date(releaseCycle, product):
-    if 'releases' in product.keys():
-        for release in product['releases']:
+def get_release_data(product):
+    try:
+        return endoflife.load_product(product.name)
+    except FileNotFoundError:
+        print(f"{product.name} file not found, real release dates will not be used.")
+        return {}
+
+
+def release_date(releaseCycle, releases_data):
+    if 'releases' in releases_data.keys():
+        for release in releases_data['releases']:
             if releaseCycle == release['releaseCycle']:
-                return release['releaseDate'].strftime("%Y-%m-%d")
+                return release['releaseDate']
 
-    return datetime.now().strftime("%Y-%m-%d")
+    return datetime.now()
 
 
-print(f"::group::{PRODUCT}")
-releases_data = {}
-try:
-    releases_data = endoflife.load_product(PRODUCT)
-except FileNotFoundError:
-    releases_data = {}
-    print(f"{PRODUCT} file not found, real release dates will not be used.")
-
-versions = {}
-response = http.fetch_url(URL)
+product = endoflife.Product("aws-lambda")
+print(f"::group::{product.name}")
+releases_data = get_release_data(product)
+response = http.fetch_url("https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html")
 soup = BeautifulSoup(response.text, features="html5lib")
+
 for row in soup.find_all("tr"):
     cells = row.find_all("td")
-    if len(cells) == 6:  # Supported Runtimes
-        identifier = cells[1].get_text().strip()
-    elif len(cells) == 5:  # Unsupported Runtimes
-        identifier = cells[1].get_text().strip()
-    else:  # Header rows
+    if len(cells) != 6 and len(cells) != 5: # 6 = Supported Runtimes, 5 = Unsupported Runtimes
         continue
 
-    date = fetch_product_file_release_date(identifier, releases_data)
-    versions[identifier] = date
-    print(f"{identifier}: {date}")
+    identifier = cells[1].get_text().strip()
+    date = release_date(identifier, releases_data)
+    product.declare_version(identifier, date)
 
-endoflife.write_releases(PRODUCT, versions)
+product.write()
 print("::endgroup::")