[gimp] build: fix Python support in Windows installer.

[Jehan <jehanp src gnome org>]

commit 7d9e6e311edc2068b5dbe27f5cae687c097035a8
Author: Jehan <jehan girinstud io>
Date:   Tue May 18 22:11:27 2021 +0200

    build: fix Python support in Windows installer.
    
    Add GObject Introspection libs, python libs and various binaries. Not
    sure why we need 3 python binaries. This would need to be investigated
    and possibly cleaned up a bit. Similarly maybe it would be better to be
    a bit more selective about what we take from lib/python3.8/ folder
    (looking what's in there, I wondered if some of the stuff were not
    pulled by some dependencies and/or should maybe be filtered out).
    
    But for now, let's make the InnoSetup scripts happy.
    
    In any case, the resulting installer was tested and now Python plug-ins
    work successfully. Wouhou!

 build/windows/gitlab-ci/package-gimp-msys2.sh | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
---
diff --git a/build/windows/gitlab-ci/package-gimp-msys2.sh b/build/windows/gitlab-ci/package-gimp-msys2.sh
index 8227bebff6..6b2fb267f0 100644
--- a/build/windows/gitlab-ci/package-gimp-msys2.sh
+++ b/build/windows/gitlab-ci/package-gimp-msys2.sh
@@ -72,6 +72,7 @@ pacman --noconfirm -S --needed \
     mingw-w64-$MSYS2_ARCH-pango \
     mingw-w64-$MSYS2_ARCH-poppler \
     mingw-w64-$MSYS2_ARCH-poppler-data \
+    mingw-w64-$MSYS2_ARCH-python \
     mingw-w64-$MSYS2_ARCH-python3-gobject \
     mingw-w64-$MSYS2_ARCH-shared-mime-info \
     mingw-w64-$MSYS2_ARCH-suitesparse \
@@ -116,6 +117,8 @@ cp -fr ${MSYS_PREFIX}/lib/gio ${GIMP_DISTRIB}/lib/
 cp -fr ${MSYS_PREFIX}/lib/gdk-pixbuf-2.0 ${GIMP_DISTRIB}/lib/
 cp -fr ${MSYS_PREFIX}/lib/gtk-3.0 ${GIMP_DISTRIB}/lib/
 
+cp -fr ${MSYS_PREFIX}/lib/python3.8 ${GIMP_DISTRIB}/lib/
+
 cp -fr ${MSYS_PREFIX}/share/ghostscript ${GIMP_DISTRIB}/share/
 cp -fr ${MSYS_PREFIX}/share/glib-2.0 ${GIMP_DISTRIB}/share/
 cp -fr ${MSYS_PREFIX}/share/libthai ${GIMP_DISTRIB}/share/
@@ -166,6 +169,12 @@ python3 build/windows/gitlab-ci/dll_link.py ${GIMP_DISTRIB}/bin/bzip2.exe ${MSYS
 cp -fr ${MSYS_PREFIX}/bin/pythonw.exe ${GIMP_DISTRIB}/bin/
 python3 build/windows/gitlab-ci/dll_link.py ${GIMP_DISTRIB}/bin/pythonw.exe ${GIMP_PREFIX}/ ${GIMP_DISTRIB}
 python3 build/windows/gitlab-ci/dll_link.py ${GIMP_DISTRIB}/bin/pythonw.exe ${MSYS_PREFIX}/ ${GIMP_DISTRIB}
+cp -fr ${MSYS_PREFIX}/bin/python3w.exe ${GIMP_DISTRIB}/bin/
+python3 build/windows/gitlab-ci/dll_link.py ${GIMP_DISTRIB}/bin/python3w.exe ${GIMP_PREFIX}/ ${GIMP_DISTRIB}
+python3 build/windows/gitlab-ci/dll_link.py ${GIMP_DISTRIB}/bin/python3w.exe ${MSYS_PREFIX}/ ${GIMP_DISTRIB}
+cp -fr ${MSYS_PREFIX}/bin/python3.exe ${GIMP_DISTRIB}/bin/
+python3 build/windows/gitlab-ci/dll_link.py ${GIMP_DISTRIB}/bin/python3.exe ${GIMP_PREFIX}/ ${GIMP_DISTRIB}
+python3 build/windows/gitlab-ci/dll_link.py ${GIMP_DISTRIB}/bin/python3.exe ${MSYS_PREFIX}/ ${GIMP_DISTRIB}
 
 cp -fr ${MSYS_PREFIX}/bin/luajit.exe ${GIMP_DISTRIB}/bin/
 python3 build/windows/gitlab-ci/dll_link.py ${GIMP_DISTRIB}/bin/luajit.exe ${GIMP_PREFIX}/ ${GIMP_DISTRIB}
@@ -222,3 +231,14 @@ for dll in ${GIMP_DISTRIB}/lib/gimp/2.99/plug-ins/*/*.exe; do
   python3 build/windows/gitlab-ci/dll_link.py $dll ${GIMP_PREFIX}/ ${GIMP_DISTRIB};
   python3 build/windows/gitlab-ci/dll_link.py $dll ${MSYS_PREFIX}/ ${GIMP_DISTRIB};
 done
+
+# Libraries for GObject Introspection.
+
+cp -fr ${MSYS_PREFIX}/bin/libgirepository-1.0-1.dll ${GIMP_DISTRIB}/bin/
+python3 build/windows/gitlab-ci/dll_link.py ${GIMP_DISTRIB}/bin/libgirepository-1.0-1.dll ${GIMP_PREFIX}/ 
${GIMP_DISTRIB}
+python3 build/windows/gitlab-ci/dll_link.py ${GIMP_DISTRIB}/bin/libgirepository-1.0-1.dll ${MSYS_PREFIX}/ 
${GIMP_DISTRIB}
+
+for dll in ${GIMP_DISTRIB}/lib/python3.8/site-packages/*/*.dll; do
+  python3 build/windows/gitlab-ci/dll_link.py $dll ${GIMP_PREFIX}/ ${GIMP_DISTRIB};
+  python3 build/windows/gitlab-ci/dll_link.py $dll ${MSYS_PREFIX}/ ${GIMP_DISTRIB};
+done