[apache] add automation script (#122)

Co-authored-by: Marc Wrobel <marc.wrobel@gmail.com>

src/apache-http-server.py

@@ -0,0 +1,73 @@
+import re
+from datetime import datetime
+from pathlib import Path
+from common import endoflife
+from common.git import Git
+
+"""Fetch apache versions from its git repository.
+
+Every branch formatted like 2.4.x has a STATUS file which contains a version
+history. Not every version was released, the lines are filtered with
+(?:Released|Announced) to get the released versions only (they were not
+consistent in the past with the wording, it seems better now).
+"""
+
+PRODUCT = "apache-http-server"
+REPO_URL = "https://github.com/apache/httpd.git"
+
+
+def parse(date: str) -> str:
+    date = date.replace("Feburary", "February")
+    for format in ["%B %d, %Y", "%B %d, %Y", "%b %d, %Y", "%b. %d, %Y"]:
+        try:
+            return datetime.strptime(date, format).strftime("%Y-%m-%d")
+        except ValueError:
+            pass
+
+    raise ValueError(f"Unknown date format for '{date}'")
+
+
+def fetch_versions_from_file(release_notes_file: Path, versions: dict):
+    if not release_notes_file.exists():
+        return {}
+
+    with open(release_notes_file, "rb") as f:
+        plain = f.read().decode("utf-8", errors="ignore")
+
+    # for most versions
+    for (version, date_str) in re.findall(r"\s+(?P<version>\d+\.\d+\.\d+)\s*:.*(?:Released|Announced|Released and Retired)\s(?:on\s)?(?P<date>\w+\s\d\d?,\s\d{4})", plain):
+        date = parse(date_str)
+        versions[version] = date
+        print(f"{version}: {date}")
+
+    # for older 2.0.x versions (only GA versions are considered)
+    for (version, date_str) in re.findall(r"\s+(?P<version>\d+\.\d+\.\d+)\s*:.*released\s(?P<date>\w+\s\d\d?,\s\d{4}) as GA", plain):
+        date = parse(date_str)
+        versions[version] = date
+        print(f"{version}: {date}")
+
+    # for older 1.3.x versions, we take the date of the tag and not the date of the release (too difficult to parse)
+    for (version, date_str) in re.findall(r"\s+(?P<version>\d+\.\d+\.\d+)\s*:.*Tagged and [rR]olled\s(?:on\s)?(?P<date>\w+\.?\s\d\d?,\s\d{4})", plain):
+        date = parse(date_str)
+        versions[version] = date
+        print(f"{version}: {date}")
+
+
+git = Git(REPO_URL)
+git.setup()
+versions = {}
+
+print(f"::group::{PRODUCT}")
+for branch in git.list_branches("refs/heads/?.?.x"):
+    status_file = "STATUS"
+    git.checkout(branch, file_list=[status_file])
+    fetch_versions_from_file(git.repo_dir / status_file, versions)
+print("::endgroup::")
+
+endoflife.write_releases(
+    PRODUCT,
+    dict(
+        # sort by date then version (desc)
+        sorted(versions.items(), key=lambda x: (x[1], x[0]), reverse=True)
+    ),
+)