docs: cite RetroArch v1.22.2 for Android detection

install.ps1

@@ -11,7 +11,7 @@
 
     $ErrorActionPreference = "Stop"
     $defaultInstallUrl = "https://raw.githubusercontent.com/Abdess/retrobios/main/install.py"
-    $defaultInstallSha256 = "b37588b71f2a6273cedf31ee05fc7b7053b5489f074349fef9cfae0dcf2555ff"
+    $defaultInstallSha256 = "956eba5f9d01138abda5550973810ccdc1138daa54c9065bf3f04cc0ba051468"
     $maximumInstallerBytes = 2MB
     $installerExit = 0
     $installer = if ($PSScriptRoot) { Join-Path $PSScriptRoot "install.py" } else { $null }

install.py

@@ -1171,11 +1171,14 @@ def _android_storage_root() -> Path:
 def _detect_android() -> list[tuple[str, Path]]:
     """Find the RetroArch system directory on Android.
 
-    The config is read from the app external files directory first, then from
-    the internal one (platform_unix.c:1327-1395). A system_directory left at
-    default resolves against <shared storage>/RetroArch, which is also where
-    the directory sits when no config has been written yet
-    (platform_unix.c:2836-2851).
+    RetroArch v1.22.2: the launcher picks retroarch.cfg in the app external
+    files directory, else in the internal one
+    (pkg/android/phoenix-common/src/com/retroarch/browser/preferences/util/
+    UserPreferences.java:36-89), and passes it as CONFIGFILE
+    (MainMenuActivity.java:178, read at frontend/drivers/platform_unix.c:
+    1428-1444). A system_directory left at default resolves against
+    <shared storage>/RetroArch/system (platform_unix.c:1670-1697), which is
+    also where the directory sits when no config has been written yet.
     """
     found: list[tuple[str, Path]] = []
     storage = _android_storage_root()

install.sh

@@ -18,7 +18,7 @@ esac
 TEMP_INSTALLER=""
 TEMP_DIRECTORY=""
 DEFAULT_INSTALL_URL="https://raw.githubusercontent.com/Abdess/retrobios/main/install.py"
-DEFAULT_INSTALL_SHA256="b37588b71f2a6273cedf31ee05fc7b7053b5489f074349fef9cfae0dcf2555ff"
+DEFAULT_INSTALL_SHA256="956eba5f9d01138abda5550973810ccdc1138daa54c9065bf3f04cc0ba051468"
 MAX_INSTALLER_BYTES=2097152
 
 cleanup() {

tests/test_install.py

@@ -2711,6 +2711,19 @@ class RetroDeckFoldersMovedOneByOne(unittest.TestCase):
         self.assertNotIn("bios/ at", label)
 
 
+class AndroidCitationsNameTheRelease(unittest.TestCase):
+    """The Android detection cited platform_unix.c lines of a RetroArch
+    revision nobody named, which no longer held the code they described."""
+
+    def test_the_lines_are_those_of_v1_22_2(self):
+        page = (REPO_ROOT / "wiki" / "installer.md").read_text(encoding="utf-8")
+        for text in (install._detect_android.__doc__, page):
+            self.assertIn("v1.22.2", text)
+            self.assertIn("platform_unix.c:1670-1697", text.replace("\n    ", ""))
+            self.assertNotIn("1327-1395", text)
+            self.assertNotIn("2836-2851", text)
+
+
 class TheBoardTheSystemNamesIsTheTarget(unittest.TestCase):
     """Batocera, Recalbox and ROCKNIX each write the board they were built
     for, but the installer read none of them, so a Batocera RPi4 installed

wiki/installer.md

@@ -499,9 +499,10 @@ with `/system/build.prop` covering a shell started without them.
 Detection then looks for RetroArch, the only Android frontend keeping a shared
 BIOS directory. `retroarch.cfg` is read from the app external files directory
 and then from the internal one, the order the frontend itself follows
-(`platform_unix.c:1327-1395`), and a `system_directory` left at `default`
-resolves against `<shared storage>/RetroArch`, where the directory also sits
-when no config has been written yet (`platform_unix.c:2836-2851`).
+(RetroArch v1.22.2, `UserPreferences.java:36-89`), and a `system_directory`
+left at `default` resolves against `<shared storage>/RetroArch`, where the
+directory also sits when no config has been written yet
+(`platform_unix.c:1670-1697`).
 
 Under scoped storage those two config paths are unreadable from Termux on
 Android 11 and later, so on current devices the shared directory is what