scripts/obs: Add -M/--no-meta option to avoid depending on osmocom-*

This is useful for testing one-off dev packages

Change-Id: Id18c75de559c9ba29efd38d8510f2db3206c4209
diff --git a/scripts/obs/lib/__init__.py b/scripts/obs/lib/__init__.py
index 226015a..5292dc5 100644
--- a/scripts/obs/lib/__init__.py
+++ b/scripts/obs/lib/__init__.py
@@ -63,6 +63,9 @@
     parser.add_argument("-p", "--conflict-pkgname", nargs="?",
                         help="name of the meta-package to depend on (default:"
                              " osmocom-$feed)")
+    parser.add_argument("-M", "--no-meta", action="store_true",
+                        help="Don't depend on the meta package (helpful when"
+                             " building one-off packages for development)")
     parser.add_argument("-v", "--verbose", action="store_true",
                         help="always print shell commands and their output,"
                              " instead of only printing them on error")
diff --git a/scripts/obs/lib/srcpkg.py b/scripts/obs/lib/srcpkg.py
index 05a705f..aef7732 100644
--- a/scripts/obs/lib/srcpkg.py
+++ b/scripts/obs/lib/srcpkg.py
@@ -185,7 +185,7 @@
     print(f"{project}: building source package {version_epoch}")
     write_tarball_version(project, version_epoch)
 
-    if project in lib.config.projects_osmocom:
+    if project in lib.config.projects_osmocom and not lib.args.no_meta:
         metapkg = lib.args.conflict_pkgname or f"osmocom-{feed}"
         lib.debian.control_add_depend(project, metapkg, conflict_version)
         if has_rpm_spec: