feat: give each collection card its path and link

scripts/generate_site.py

@@ -1865,6 +1865,31 @@ def generate_provenance_page(
     return "\n".join(lines) + "\n"
 
 
+_RELEASE_ASSET_NAMES: dict[str, str] | None = None
+
+
+def _fetch_url(path: str) -> str:
+    """Where a collection file downloads from: its raw URL, or the
+    large-files release asset when .gitignore keeps it out of git."""
+    global _RELEASE_ASSET_NAMES
+    if _RELEASE_ASSET_NAMES is None:
+        from largefiles import (  # noqa: PLC0415
+            LARGE_FILES_RELEASE,
+            asset_names,
+            load_registered_paths,
+        )
+
+        _RELEASE_ASSET_NAMES = {
+            registered: f"{REPO_URL}/releases/download/{LARGE_FILES_RELEASE}/"
+            + urllib.parse.quote(name.replace(" ", "."))
+            for registered, name in asset_names(load_registered_paths()).items()
+        }
+    return _RELEASE_ASSET_NAMES.get(path) or (
+        "https://raw.githubusercontent.com/Abdess/retrobios/main/"
+        + urllib.parse.quote(path)
+    )
+
+
 def _system_file_card(f: dict, consumers: FileConsumers) -> list[str]:
     """One file of a system page: hashes, who reads it, its provenance."""
     name = f["name"]
@@ -1883,8 +1908,11 @@ def _system_file_card(f: dict, consumers: FileConsumers) -> list[str]:
     permalink = f' <a class="rb-permalink" href="#{anchor}" title="Link to this file">#</a>' if anchor else ""
     lines.append(f'**`{name}`** <span class="rb-badge rb-badge-muted">{size}</span>{permalink}')
     lines.append("")
-    if "/.variants/" in f.get("path", ""):
-        lines.append(f"- Stored as: `{f['path'].rsplit('/', 1)[-1]}`")
+    if f.get("path"):
+        # The card named a file, its hashes and provenance, but not where to
+        # get it: a user missing scph5501.bin found the reference and no way
+        # to the bytes.
+        lines.append(f"- Collection path: `{f['path']}` ([download]({_fetch_url(f['path'])}))")
     lines.append(f'- SHA1: <span class="rb-hash" title="{sha1_full}">`{sha1_short}...`</span>')
     lines.append(f'- MD5: <span class="rb-hash" title="{md5_full}">`{md5_short}...`</span>')
     if plats:

tests/test_audit_regressions.py

@@ -4515,5 +4515,24 @@ class UnsourceableCardSaysWhy(unittest.TestCase):
         self.assertIn("../gaps.md#acknowledged-gaps", text)
 
 
+
+class CollectionCardsSayWhereToGetTheFile(unittest.TestCase):
+    """A system page card gave the hashes, readers and provenance of
+    scph5501.bin and no path or link to the bytes."""
+
+    def test_raw_and_release_asset_urls(self):
+        import scripts.generate_site as site
+
+        site._RELEASE_ASSET_NAMES = None
+        self.addCleanup(setattr, site, "_RELEASE_ASSET_NAMES", None)
+        self.assertEqual(
+            site._fetch_url("bios/Sony/PlayStation/scph5501.bin"),
+            "https://raw.githubusercontent.com/Abdess/retrobios/main/bios/Sony/PlayStation/scph5501.bin",
+        )
+        self.assertTrue(site._fetch_url("bios/Arcade/MAME/MAME 0.174 Arcade XML.dat").endswith(
+            "/releases/download/large-files/MAME.0.174.Arcade.XML.dat"
+        ))
+
+
 if __name__ == "__main__":
     unittest.main()

tests/test_site_exports.py

@@ -351,7 +351,7 @@ class AVariantShowsWhoPinsIt(unittest.TestCase):
         page = generate_site.generate_system_page(
             "Entex", {"Adventure Vision": [primary, variant]}, consumers)
         block = page[page.index('??? note "Variants (1)"'):]
-        self.assertIn("    - Stored as: `advision.zip.1c086064`", block)
+        self.assertIn("    - Collection path: `bios/Entex/Adventure Vision/.variants/advision.zip.1c086064`", block)
         self.assertIn("[batocera](../platforms/batocera.md)", block)
         self.assertIn("[retrobat](../platforms/retrobat.md)", block)
         self.assertIn('title="' + "c" * 40 + '"', block)