app-editors/neovim-gtk: fix install phase

packages/app-editors/neovim-gtk/neovim-gtk.exlib

@@ -1,7 +1,7 @@
 # Copyright 2018 Julian Ospald <hasufell@posteo.de>
 # Distributed under the terms of the GNU General Public License v2
 
-require desktop-utils freedesktop-desktop
+require freedesktop-desktop gtk-icon-cache
 require cargo [ channel=stable ]
 require github [ user=daa84 tag="v${PV}" ]
 
@@ -13,9 +13,34 @@ MYOPTIONS=""
 
 BUGS_TO="hasufell@posteo.de"
 
-src_install() {
-    ecargo_install
-    install_desktop_entry Exec="nvim-gtk" \
-        MimeType="text/english;text/plain;text/x-makefile;text/x-c++hdr;text/x-c++src;text/x-chdr;text/x-csrc;text/x-java;text/x-moc;text/x-pascal;text/x-tcl;text/x-tex;application/x-shellscript;text/x-c;text/x-c++;"
+src_prepare() {
+    default
+    export PREFIX=/usr
+}
+
+src_install() {
+    ecargo_install
+
+    insinto /usr/share/nvim-gtk
+    doins -r runtime
+
+    insinto /usr/share/applications
+    doins desktop/*.desktop
+
+    insinto /usr/share/icons/hicolor/48x48/apps
+    doins desktop/org.daa.NeovimGtk.png
+
+    insinto /usr/share/icons/hicolor/scalable/apps
+    doins desktop/org.daa.NeovimGtk.svg
+}
+
+pkg_postinst() {
+    freedesktop-desktop_update_desktop_database
+    gtk-icon-cache_pkg_postinst
+}
+
+pkg_postrm() {
+    freedesktop-desktop_update_desktop_database
+    gtk-icon-cache_pkg_postrm
 }