Add redhat_lifecycles auto method (#428)

An auto method based on the Red Hat Product Life Cycle Data API (https://access.redhat.com/product-life-cycles/api/v1/products).

src/redhat_lifecycles.py

@@ -0,0 +1,48 @@
+import logging
+import sys
+import urllib.parse
+
+from common import dates, endoflife, http, releasedata
+
+"""Fetches EOL dates from the Red Hat Product Life Cycle Data API.
+
+This script works based on a definition provided in the product's frontmatter to map Red Hat phases to endoflife.date fields.
+
+More information on https://docs.redhat.com/documentation/red_hat_product_life_cycle_data_api/.
+"""
+
+METHOD = "redhat_lifecycles"
+
+
+class Mapping:
+    def __init__(self, phases_by_field: dict[str, str]) -> None:
+        self.fields_by_phase = {v.lower(): k.lower() for k, v in phases_by_field.items()}
+
+    def get_field_for(self, phase_name: str) -> str | None:
+        return self.fields_by_phase.get(phase_name.lower(), None)
+
+p_filter = sys.argv[1] if len(sys.argv) > 1 else None
+m_filter = sys.argv[2] if len(sys.argv) > 2 else None
+for config in endoflife.list_configs(p_filter, METHOD, m_filter):
+    with releasedata.ProductData(config.product) as product_data:
+        name = urllib.parse.quote(config.url)
+        mapping = Mapping(config.data["fields"])
+
+        data = http.fetch_url('https://access.redhat.com/product-life-cycles/api/v1/products?name=' + name).json()
+
+        for version in data["data"][0]["versions"]:
+            version_name = version["name"]
+            version_match = config.first_match(version_name)
+            if not version_match:
+                logging.warning(f"Ignoring version '{version_name}', config is {config}")
+                continue
+
+            release = product_data.get_release(config.render(version_match))
+            for phase in version["phases"]:
+                field = mapping.get_field_for(phase["name"])
+                if not field:
+                    logging.debug(f"Ignoring phase '{phase['name']}': not mapped")
+                    continue
+
+                date = dates.parse_datetime(phase["date"])
+                release.set_field(field, date)