[ibm-aix] Refactor script (#231)

Make the script more readable, mostly by:

- using the Product classes,
- removing the use of functions when unnecessary,
- a little bit of renaming and documentation.

Also add a link to web.archive.org to fetch new oldest versions.

releases/ibm-aix.json

@@ -8,5 +8,11 @@
   "7.2.2": "2017-10-31",
   "7.1.5": "2017-10-31",
   "7.2.1": "2016-11-30",
-  "7.2.0": "2015-12-31"
+  "7.2.0": "2015-12-31",
+  "7.1.4": "2015-12-31",
+  "7.1.3": "2013-11-30",
+  "6.1.9": "2013-11-30",
+  "7.1.2": "2012-11-30",
+  "7.1.1": "2011-10-31",
+  "7.1.0": "2010-09-30"
 }

src/ibm-aix.py

@@ -3,28 +3,22 @@ from common import http
 from common import dates
 from common import endoflife
 
-PRODUCT = "ibm-aix"
-URL = "https://www.ibm.com/support/pages/aix-support-lifecycle-information"
+URLS = [
+    "https://web.archive.org/web/20210123024247/https://www.ibm.com/support/pages/aix-support-lifecycle-information",
+    "https://www.ibm.com/support/pages/aix-support-lifecycle-information",
+]
 
-def fetch_releases():
-    response = http.fetch_url(URL)
-    soup = BeautifulSoup(response.text, features="html5lib")
+product = endoflife.Product("ibm-aix")
+print(f"::group::{product.name}")
+for page in http.fetch_urls(URLS):
+    page_soup = BeautifulSoup(page.text, features="html5lib")
 
-    releases = {}
-    # for all release tables
-    for release_table in soup.find("div", class_="ibm-container-body").find_all("table", class_="ibm-data-table ibm-grid"):
-        # for all rows except the header one
-        for row in release_table.find_all("tr")[1:]:
+    for release_table in page_soup.find("div", class_="ibm-container-body").find_all("table", class_="ibm-data-table ibm-grid"):
+        for row in release_table.find_all("tr")[1:]:  # for all rows except the header
             cells = row.find_all("td")
             version = cells[0].text.strip("AIX ").replace(' TL', '.')
-            date = dates.parse_month_year_date(cells[1].text).strftime("%Y-%m-%d")
-            print(f"{version} : {date}")
-            releases[version] = date
+            date = dates.parse_month_year_date(cells[1].text)
+            product.declare_version(version, date)
 
-    return releases
-
-
-print(f"::group::{PRODUCT}")
-versions = fetch_releases()
-endoflife.write_releases(PRODUCT, versions)
+product.write()
 print("::endgroup::")