File macros.desktop-file-utils of Package desktop-file-utils

# RPM macros for packages installing desktop files
#
###
#
# When a package installs a desktop file, it should use both macros:
#
#  - %desktop_database_post in %post
#  - %desktop_database_postun in %postun
#
# Note that these macros can optionally take as argument the directory
# where the desktop file is installed. If no argument is passed, then
# %{_datadir}/applications will be used (which is where applications
# usually install their desktop file).
#
###

# On install, update the desktop database
%desktop_database_post()                                                          \
if test -x %{_bindir}/update-desktop-database; then                               \
%if "x%1" != "x%%1"                                                               \
  %{_bindir}/update-desktop-database --quiet "%1" || true                         \
%else                                                                             \
  %{_bindir}/update-desktop-database --quiet "%{_datadir}/applications" || true   \
%endif                                                                            \
fi 

# On uninstall, update the desktop database. Note: we ignore upgrades (already
# handled in %post of the new package).
%desktop_database_postun()                                                        \
if [ $1 -eq 0 ]; then                                                             \
  if test -x %{_bindir}/update-desktop-database; then                             \
%if "x%1" != "x%%1"                                                               \
    %{_bindir}/update-desktop-database --quiet "%1" || true                       \
%else                                                                             \
    %{_bindir}/update-desktop-database --quiet "%{_datadir}/applications" || true \
%endif                                                                            \
  fi                                                                              \
fi