Fix handling generated .desktop files. Closes #4304.

5 files changed, 51 insertions, 10 deletions

diff --git a/mesonbuild/modules/i18n.py b/mesonbuild/modules/i18n.py
index 0fc052b..8b5e181 100644
--- a/mesonbuild/modules/i18n.py
+++ b/mesonbuild/modules/i18n.py
@@ -82,17 +82,19 @@ class I18nModule(ExtensionModule):
         kwargs['command'] = command
 
         inputfile = kwargs['input']
-        if isinstance(inputfile, str):
-            inputfile = mesonlib.File.from_source_file(state.environment.source_dir,
+        if hasattr(inputfile, 'held_object'):
+            ct = build.CustomTarget(kwargs['output'] + '_merge', state.subdir, state.subproject, kwargs)
+        else:
+            if isinstance(inputfile, str):
+                inputfile = mesonlib.File.from_source_file(state.environment.source_dir,
                                                        state.subdir, inputfile)
-        output = kwargs['output']
-        ifile_abs = inputfile.absolute_path(state.environment.source_dir,
-                                            state.environment.build_dir)
-        values = mesonlib.get_filenames_templates_dict([ifile_abs], None)
-        outputs = mesonlib.substitute_values([output], values)
-        output = outputs[0]
-
-        ct = build.CustomTarget(output + '_' + state.subdir + '_merge', state.subdir, state.subproject, kwargs)
+            output = kwargs['output']
+            ifile_abs = inputfile.absolute_path(state.environment.source_dir,
+                                                state.environment.build_dir)
+            values = mesonlib.get_filenames_templates_dict([ifile_abs], None)
+            outputs = mesonlib.substitute_values([output], values)
+            output = outputs[0]
+            ct = build.CustomTarget(output + '_' + state.subdir + '_merge', state.subdir, state.subproject, kwargs)
         return ModuleReturnValue(ct, [ct])
 
     @FeatureNewKwargs('i18n.gettext', '0.37.0', ['preset'])
diff --git a/test cases/frameworks/6 gettext/generated/desktopgenerator.py b/test cases/frameworks/6 gettext/generated/desktopgenerator.py
new file mode 100644
index 0000000..150ed04
--- /dev/null
+++ b/test cases/frameworks/6 gettext/generated/desktopgenerator.py
@@ -0,0 +1,9 @@
+#!/usr/bin/env python3
+
+import sys, shutil
+
+ifile = sys.argv[1]
+ofile = sys.argv[2]
+
+os.unlink(ofile)
+shutil.copy(ifile, ofile)
diff --git a/test cases/frameworks/6 gettext/generated/meson.build b/test cases/frameworks/6 gettext/generated/meson.build
new file mode 100644
index 0000000..02e61ba
--- /dev/null
+++ b/test cases/frameworks/6 gettext/generated/meson.build
@@ -0,0 +1,14 @@
+dgen = find_program('desktopgenerator.py')
+
+desktop_in_file = custom_target('something.desktop.in',
+  input : ['something.desktop.in.in'],
+  output : 'something.desktop.in',
+  command : [dgen, '@INPUT@', '@OUTPUT@'],
+)
+
+i18n.merge_file(
+  input : desktop_in_file,
+  output : 'something.desktop',
+  type : 'desktop',
+  po_dir : '../po',
+)
diff --git a/test cases/frameworks/6 gettext/generated/something.desktop.in.in b/test cases/frameworks/6 gettext/generated/something.desktop.in.in
new file mode 100644
index 0000000..e2094fd
--- /dev/null
+++ b/test cases/frameworks/6 gettext/generated/something.desktop.in.in
@@ -0,0 +1,15 @@
+[Desktop Entry]
+Name=Something doer
+Comment=Do something
+# Translators: Search terms to find this application. Do NOT translate or localize the semicolons! The list MUST also end with a semicolon!
+Keywords=zip;tar;extract;unpack;
+TryExec=file-roller
+Exec=file-roller %U
+StartupNotify=true
+Terminal=false
+Type=Application
+# Translators: Do NOT translate or transliterate this text (this is an icon file name)!
+Icon=something
+Categories=GTK;GNOME;Utility
+X-GNOME-DocPath=file-roller/file-roller.xml
+X-GNOME-UsesNotifications=true
diff --git a/test cases/frameworks/6 gettext/meson.build b/test cases/frameworks/6 gettext/meson.build
index 9b84856..09ef982 100644
--- a/test cases/frameworks/6 gettext/meson.build
+++ b/test cases/frameworks/6 gettext/meson.build
@@ -15,3 +15,4 @@ subdir('po')
 subdir('src')
 subdir('data')
 subdir('data2')
+subdir('generated')