From 987ab3eff1cc8b60edb521ed212ac3eacf15d10d Mon Sep 17 00:00:00 2001
From: Jan Tojnar <jtojnar@gmail.com>
Date: Wed, 8 Jun 2022 15:46:08 +0200
Subject: [PATCH 1/4] ibus-with-plugins: switch to buildEnv

No need to call lndir manually.
---
 pkgs/tools/inputmethods/ibus/wrapper.nix | 50 ++++++++++++++----------
 1 file changed, 29 insertions(+), 21 deletions(-)

diff --git a/pkgs/tools/inputmethods/ibus/wrapper.nix b/pkgs/tools/inputmethods/ibus/wrapper.nix
index 93078325a0d..d05fdfd5bd7 100644
--- a/pkgs/tools/inputmethods/ibus/wrapper.nix
+++ b/pkgs/tools/inputmethods/ibus/wrapper.nix
@@ -1,26 +1,33 @@
-{ lib, runCommand, makeWrapper, lndir
-, dconf, hicolor-icon-theme, ibus, librsvg, plugins ? []
+{ lib
+, buildEnv
+, makeWrapper
+, dconf
+, hicolor-icon-theme
+, ibus
+, librsvg
+, plugins ? [ ]
 }:
 
-let
+buildEnv {
   name = "ibus-with-plugins-" + lib.getVersion ibus;
-  env = {
-    buildInputs = [ ibus ] ++ plugins;
-    nativeBuildInputs = [ lndir makeWrapper ];
-    propagatedUserEnvPackages = [ hicolor-icon-theme ];
-    paths = [ ibus ] ++ plugins;
-    inherit (ibus) meta;
-  };
-  command = ''
-    for dir in bin etc lib libexec share; do
-        mkdir -p "$out/$dir"
-        for pkg in $paths; do
-            if [ -d "$pkg/$dir" ]; then
-                lndir -silent "$pkg/$dir" "$out/$dir"
-            fi
-        done
-    done
 
+  paths = [ ibus ] ++ plugins;
+
+  pathsToLink = [
+    "/bin"
+    "/etc"
+    "/lib"
+    "/libexec"
+    "/share"
+  ];
+
+  nativeBuildInputs = [
+    makeWrapper
+  ];
+
+  buildInputs = [ ibus ] ++ plugins;
+
+  postBuild = ''
     for prog in ibus; do
         wrapProgram "$out/bin/$prog" \
           --set GDK_PIXBUF_MODULE_FILE ${librsvg.out}/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache \
@@ -60,5 +67,6 @@ let
           --add-flags "--cache=refresh"
     done
   '';
-in
-  runCommand name env command
+
+  inherit (ibus) meta;
+}

From 8ce001f6a262382c474dd503129aab5098e4a7d6 Mon Sep 17 00:00:00 2001
From: Jan Tojnar <jtojnar@gmail.com>
Date: Wed, 8 Jun 2022 16:09:32 +0200
Subject: [PATCH 2/4] ibus-with-plugins: Fix service paths

They need to point to the wrapped programs for IBus to be able to find the engines.
---
 pkgs/tools/inputmethods/ibus/wrapper.nix | 43 ++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/pkgs/tools/inputmethods/ibus/wrapper.nix b/pkgs/tools/inputmethods/ibus/wrapper.nix
index d05fdfd5bd7..c1328fbe984 100644
--- a/pkgs/tools/inputmethods/ibus/wrapper.nix
+++ b/pkgs/tools/inputmethods/ibus/wrapper.nix
@@ -19,6 +19,11 @@ buildEnv {
     "/lib"
     "/libexec"
     "/share"
+    # Need to link contents so that the directories are writeable.
+    "/lib/systemd"
+    "/share/dbus-1/services"
+    "/share/systemd/user"
+    "/share/systemd/user/gnome-session.target.wants"
   ];
 
   nativeBuildInputs = [
@@ -66,6 +71,44 @@ buildEnv {
           --suffix XDG_DATA_DIRS : "${hicolor-icon-theme}/share" \
           --add-flags "--cache=refresh"
     done
+
+    ibusPackage="${ibus}"
+
+    # Update services.
+    for service in \
+        "share/dbus-1/services/org.freedesktop.IBus.service" \
+        "share/systemd/user/org.freedesktop.IBus.session.generic.service" \
+        "share/systemd/user/org.freedesktop.IBus.session.GNOME.service"
+    do
+        unlink "$out/$service"
+        substitute "$ibusPackage/$service" "$out/$service" --replace "$ibusPackage/bin" "$out/bin"
+    done
+
+    # Re-create relative symbolic links.
+    for link in \
+        "$out/share/systemd/user/gnome-session.target.wants/"*
+    do
+        target="$link"
+        until [[ "''${target:0:1}" != "/" ]]; do
+            target="$(readlink "$target")"
+        done
+        unlink "$link"
+        ln -s "$target" "$link"
+    done
+
+    # Update absolute symbolic links.
+    for link in \
+        "$out/lib/systemd/user"
+    do
+        target="$(readlink -f "$link")"
+        relativeTarget="''${target#$ibusPackage/}"
+        if [[ "$ibusPackage/$relativeTarget" != "$target" ]]; then
+            >&2 echo "File $link does not point to to a file in $ibusPackage"
+            exit 1
+        fi
+        unlink "$link"
+        ln -s "$out/$relativeTarget" "$link"
+    done
   '';
 
   inherit (ibus) meta;

From 5c641b41392090e2c3462a48aeb8d516b212c9c3 Mon Sep 17 00:00:00 2001
From: linj <linj.dev@outlook.com>
Date: Wed, 8 Jun 2022 16:33:58 +0800
Subject: [PATCH 3/4] ibus: patch sh to runtimeShell in ExecStart of systemd
 service

---
 pkgs/tools/inputmethods/ibus/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/tools/inputmethods/ibus/default.nix b/pkgs/tools/inputmethods/ibus/default.nix
index a791e90a93c..3bcb5d01cf4 100644
--- a/pkgs/tools/inputmethods/ibus/default.nix
+++ b/pkgs/tools/inputmethods/ibus/default.nix
@@ -90,6 +90,8 @@ stdenv.mkDerivation rec {
   postPatch = ''
     patchShebangs --build data/dconf/make-dconf-override-db.sh
     cp ${buildPackages.gtk-doc}/share/gtk-doc/data/gtk-doc.make .
+    substituteInPlace bus/services/org.freedesktop.IBus.session.GNOME.service.in --replace "ExecStart=sh" "ExecStart=${runtimeShell}"
+    substituteInPlace bus/services/org.freedesktop.IBus.session.generic.service.in --replace "ExecStart=sh" "ExecStart=${runtimeShell}"
   '';
 
   preAutoreconf = "touch ChangeLog";

From cdfd2b9f5707e9698b780f0d6326f232367ad1da Mon Sep 17 00:00:00 2001
From: linj <linj.dev@outlook.com>
Date: Wed, 8 Jun 2022 19:38:55 +0800
Subject: [PATCH 4/4] nixos/ibus: don't use xdg autostart for Gnome

Gnome uses systemd to start ibus.
---
 nixos/modules/i18n/input-method/ibus.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/nixos/modules/i18n/input-method/ibus.nix b/nixos/modules/i18n/input-method/ibus.nix
index c5b0cbc2150..33270707b26 100644
--- a/nixos/modules/i18n/input-method/ibus.nix
+++ b/nixos/modules/i18n/input-method/ibus.nix
@@ -23,6 +23,8 @@ let
       Name=IBus
       Type=Application
       Exec=${ibusPackage}/bin/ibus-daemon --daemonize --xim ${impanel}
+      # GNOME will launch ibus using systemd
+      NotShowIn=GNOME;
     '';
   };
 in