ci: check if all plugins are installed with meson

Will prevent us to forget adding new plugins to meson.

.gitlab-ci.yml

@@ -153,8 +153,9 @@ test nightly:
 meson shared:
   extends: .img-stable
   script:
-    - meson build --default-library=shared
-    - ninja -C build
+    - meson build --default-library=shared --prefix=$(pwd)/install
+    - ninja -C build install
+    - ./ci/check-plugins-installed.py install
   rules:
     - if: '$UPDATE_IMG == null || $UPDATE_IMG == "stable"'
 

ci/check-plugins-installed.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+# Check that all available plugins have been build and installed in the prefix
+# directory passed in argument.
+import sys
+import os
+import glob
+
+DIRS = ['audio', 'generic', 'net', 'text', 'utils', 'video']
+OVERRIDE = {'wrap': 'textwrap', 'flavors': 'rsflv'}
+
+prefix = sys.argv[1]
+
+plugins = glob.glob(os.path.join(
+    prefix, '**', 'gstreamer-1.0', '*.so'), recursive=True)
+plugins = list(map(os.path.basename, plugins))
+print("Built plugins:", plugins)
+
+success = True
+
+for d in DIRS:
+    for name in os.listdir(d):
+        name = OVERRIDE.get(name, name)
+
+        plugin = "libgst{}.so".format(name)
+        # Some plugins are prefixed with 'rs'
+        rs_plugin = "libgstrs{}.so".format(name)
+
+        if plugin not in plugins and rs_plugin not in plugins:
+            print(name, "missing in", prefix)
+            success = False
+
+if not success:
+    sys.exit(1)