windows.compile_resources: fix compiling multiple resources within one project

mesonbuild/modules/windows.py

@@ -68,15 +68,41 @@ class WindowsModule(ExtensionModule):
         if not rescomp.found():
             raise MesonException('Could not find Windows resource compiler %s.' % ' '.join(rescomp.get_command()))
 
-        res_kwargs = {
-            'output': '@BASENAME@.' + suffix,
-            'input': args,
-            'command': [rescomp] + res_args,
-        }
+        res_targets = []
 
-        res_target = build.CustomTarget('Windows resource', state.subdir, state.subproject, res_kwargs)
+        def add_target(src):
+            if isinstance(src, list):
+                for subsrc in src:
+                    add_target(subsrc)
+                return
 
-        return ModuleReturnValue(res_target, [res_target])
+            if hasattr(src, 'held_object'):
+                src = src.held_object
+
+            res_kwargs = {
+                'output': '@BASENAME@.' + suffix,
+                'input': [src],
+                'command': [rescomp] + res_args,
+            }
+
+            if isinstance(src, (str, mesonlib.File)):
+                name = 'file {!r}'.format(str(src))
+            elif isinstance(src, build.CustomTarget):
+                if len(src.get_outputs()) > 1:
+                    raise MesonException('windows.compile_resources does not accept custom targets with more than 1 output.')
+
+                name = 'target {!r}'.format(src.get_id())
+            else:
+                raise MesonException('Unexpected source type {!r}. windows.compile_resources accepts only strings, files, custom targets, and lists thereof.'.format(src))
+
+            # Path separators are not allowed in target names
+            name = name.replace('/', '_').replace('\\', '_')
+
+            res_targets.append(build.CustomTarget('Windows resource for ' + name, state.subdir, state.subproject, res_kwargs))
+
+        add_target(args)
+
+        return ModuleReturnValue(res_targets, [res_targets])
 
 def initialize():
     return WindowsModule()

test cases/windows/13 resources with custom targets/inc/meson.build

@@ -1 +0,0 @@
-inc = include_directories('resource')

test cases/windows/13 resources with custom targets/inc/resource/resource.h

@@ -1 +0,0 @@
-#define ICON_ID 1

test cases/windows/13 resources with custom targets/meson.build

@@ -59,11 +59,12 @@ if meson.get_compiler('c').get_id() == 'gcc' and host_machine.system() == 'windo
   # We hope you never have to implement something like this.
 endif
 
-subdir('inc')
 subdir('res')
 
-exe = executable('prog', 'prog.c',
-  res,
-  gui_app : true)
+foreach id : [0, 1, 2]
+  exe = executable('prog_@0@'.format(id), 'prog.c',
+    res[id],
+    gui_app : true)
 
-test('winmain', exe)
+  test('winmain_@0@'.format(id), exe)
+endforeach

test cases/windows/13 resources with custom targets/res/meson.build

@@ -2,12 +2,17 @@ win = import('windows')
 
 rc_writer = find_program('./gen-res.py')
 
-rc_target = custom_target('RC source file',
-    input : 'myres.rc.in',
-    output : 'myres.rc',
-    command : [rc_writer, '@INPUT@', '@OUTPUT@', files('sample.ico')],
-    install : false,
-    build_always : true)
-
-res = win.compile_resources(rc_target,
-  include_directories : inc)
+rc_sources = []
+
+foreach id : [1, 2]
+    rc_sources += custom_target('RC source file @0@'.format(id),
+        input : 'myres.rc.in',
+        output : 'myres_@0@.rc'.format(id),
+        command : [rc_writer, '@INPUT@', '@OUTPUT@', files('sample.ico')],
+        install : false,
+        build_always : true)
+endforeach
+
+rc_sources += files('myres_static.rc')
+
+res = win.compile_resources(rc_sources)

test cases/windows/13 resources with custom targets/res/myres.rc.in

@@ -1,4 +1,3 @@
 #include<windows.h>
-#include"resource.h"
 
-ICON_ID ICON "{icon}"
+1 ICON "{icon}"

test cases/windows/13 resources with custom targets/res/myres_static.rc

@@ -0,0 +1,3 @@
+#include<windows.h>
+
+1 ICON "sample.ico"