build: Add script to update the unsupported devices from wiki

Avoid some more manual labor

libfprint/fprint-list-udev-hwdb.c

@@ -26,9 +26,10 @@
 
 static const FpIdEntry allowlist_id_table[] = {
   /* Currently known and unsupported devices.
-   * You can generate this list from the wiki page using e.g.:
-   *   gio cat https://gitlab.freedesktop.org/libfprint/wiki/-/wikis/Unsupported-Devices.md | sed -n 's!|.*\([0-9a-fA-F]\{4\}\):\([0-9a-fA-F]\{4\}\).*|.*!  { .vid = 0x\1, .pid = 0x\2 },!p'
+   * You can regenerate this list from the wiki page with:
+   *   meson compile -C <build-dir> sync-unsupported-devices
    */
+  /* --- BEGIN GENERATED IDS --- */
   { .vid = 0x0a5c, .pid = 0x5802 },
   { .vid = 0x047d, .pid = 0x00f2 },
   { .vid = 0x047d, .pid = 0x8054 },
@@ -166,6 +167,7 @@ static const FpIdEntry allowlist_id_table[] = {
   { .vid = 0x298d, .pid = 0x2033 },
   { .vid = 0x2df0, .pid = 0x0003 },
   { .vid = 0x3538, .pid = 0x0930 },
+  /* --- END GENERATED IDS --- */
   { .vid = 0 },
 };
 

libfprint/meson.build

@@ -301,8 +301,9 @@ libfprint_private_dep = declare_dependency(
     ]
 )
 
+udev_hwdb_list_file = files('fprint-list-udev-hwdb.c')
 udev_hwdb = executable('fprint-list-udev-hwdb',
-    'fprint-list-udev-hwdb.c',
+    udev_hwdb_list_file,
     dependencies: libfprint_private_dep,
     link_with: libfprint_drivers,
     install: false,
@@ -366,6 +367,10 @@ sync_udev_udb = custom_target('sync-udev-hwdb',
 
 alias_target('sync-udev-hwdb', sync_udev_udb)
 
+run_target('sync-unsupported-devices',
+    command: [ sync_unsupported_files, udev_hwdb_list_file ]
+)
+
 supported_devices = executable('fprint-list-supported-devices',
     'fprint-list-supported-devices.c',
     dependencies: libfprint_private_dep,