feat: set up macros for buildrequires generation

data/macros.meson

@@ -45,3 +45,8 @@
         --num-processes %{_smp_build_ncpus} \
         --print-errorlogs \
         %{nil}}
+
+%meson_buildrequires \
+     %{shrink: mesongenbuildreq %{__meson} \
+    %{nil}}
+

data/mesongenbuildreq.py

@@ -0,0 +1,29 @@
+import subprocess 
+import json 
+import sys
+deps_json = json.loads(subprocess.run([sys.argv[0], "introspect", "--dependencies", "meson.build"], capture_output=True).stdout) 
+deps = dict(zip([x['name'] for x in deps_json],[x['version'] for x in deps_json])) 
+deps.pop('', None) 
+for lib, versions in deps.items() : 
+     # Mapping for special cases 
+    pkg_map = { 
+        'qt6': 'cmake',
+        'KF6WindowSystem': 'cmake',
+        'gtk+-3.0': 'pkgconfig',
+        'dbus-1': 'pkgconfig',
+        'ncursesw': 'pkgconfig',
+        'harfbuzz': 'pkgconfig',
+        'fribidi': 'pkgconfig',
+        # Add more mappings as needed
+    }
+    # Determine the prefix
+    prefix = pkg_map.get(lib, 'pkgconfig')
+
+     # Prepare version constraint
+    version_str = ' ' + ' '.join(versions) if versions else ''
+
+    # Generate BuildRequires line
+    buildreq = (f"BuildRequires: {prefix}({lib}){version_str}") 
+    if buildreq.split('=')[-1] == '' and '=' in buildreq :
+        buildreq = buildreq.split('=')[0]
+    print(buildreq)