Simplify argument parsing (#459)

With the current state of automation scripts, this is not possible anymore to launch script with multiple auto configs.

src/atlassian_eol.py

@@ -1,7 +1,8 @@
 import logging
 
 from bs4 import BeautifulSoup
-from common import dates, http, releasedata
+from common import dates, http
+from common.releasedata import ProductData, config_from_argv
 
 """Fetches EOL dates from Atlassian EOL page.
 
@@ -9,19 +10,19 @@ This script takes a selector argument which is the product title identifier on t
 `AtlassianSupportEndofLifePolicy-JiraSoftware`.
 """
 
-for config in releasedata.list_configs_from_argv():
-    with releasedata.ProductData(config.product) as product_data:
-        content = http.fetch_javascript_url(config.url)
-        soup = BeautifulSoup(content, features="html5lib")
+config = config_from_argv()
+with ProductData(config.product) as product_data:
+    content = http.fetch_javascript_url(config.url)
+    soup = BeautifulSoup(content, features="html5lib")
 
-        # Find the section with the EOL dates
-        for li in soup.select(f"#{config.data.get('selector')}+ul li"):
-            match = config.first_match(li.get_text(strip=True))
-            if not match:
-                logging.warning(f"Skipping '{li.get_text(strip=True)}', no match found")
-                continue
+    # Find the section with the EOL dates
+    for li in soup.select(f"#{config.data.get('selector')}+ul li"):
+        match = config.first_match(li.get_text(strip=True))
+        if not match:
+            logging.warning(f"Skipping '{li.get_text(strip=True)}', no match found")
+            continue
 
-            release_name = match.group("release")
-            date = dates.parse_date(match.group("date"))
-            release = product_data.get_release(release_name)
-            release.set_eol(date)
+        release_name = match.group("release")
+        date = dates.parse_date(match.group("date"))
+        release = product_data.get_release(release_name)
+        release.set_eol(date)