Add scdoc to meson build process

meson.build

@@ -153,6 +153,35 @@ install_data(
     install_dir: join_paths(get_option('out'), 'etc/xdg/waybar')
 )
 
+scdoc = dependency('scdoc', version: '>=1.9.2', native: true)
+
+if scdoc.found()
+    scdoc_prog = find_program(scdoc.get_pkgconfig_variable('scdoc'), native: true)
+    sh = find_program('sh', native: true)
+    mandir = get_option('mandir')
+    man_files = [
+        'waybar.5.scd',
+
+    ]
+
+    foreach filename : man_files
+        topic = filename.split('.')[-3].split('/')[-1]
+        section = filename.split('.')[-2]
+        output = '@0@.@1@'.format(topic, section)
+
+        custom_target(
+            output,
+            input: filename,
+            output: output,
+            command: [
+                sh, '-c', '@0@ < @INPUT@ > @1@'.format(scdoc_prog.path(), output)
+            ],
+            install: true,
+            install_dir: '@0@/man@1@'.format(mandir, section)
+        )
+    endforeach
+endif
+
 clangtidy = find_program('clang-tidy', required: false)
 
 if clangtidy.found()