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# Copyright 2004-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: xdg-utils.eclass
# @MAINTAINER:
# gnome@gentoo.org
# freedesktop-bugs@gentoo.org
# @AUTHOR:
# Original author: Gilles Dartiguelongue <eva@gentoo.org>
# @SUPPORTED_EAPIS: 7 8
# @BLURB: Auxiliary functions commonly used by XDG compliant packages.
# @DESCRIPTION:
# This eclass provides a set of auxiliary functions needed by most XDG
# compliant packages.
# It provides XDG stack related functions such as:
# * GTK/Qt5 icon theme cache management
# * XDG .desktop files cache management
# * XDG mime information database management
case ${EAPI} in
7|8) ;;
*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
esac
# @ECLASS_VARIABLE: DESKTOP_DATABASE_DIR
# @INTERNAL
# @DESCRIPTION:
# Directory where .desktop files database is stored
: "${DESKTOP_DATABASE_DIR="/usr/share/applications"}"
# @ECLASS_VARIABLE: MIMEINFO_DATABASE_DIR
# @INTERNAL
# @DESCRIPTION:
# Directory where .desktop files database is stored
: "${MIMEINFO_DATABASE_DIR:="/usr/share/mime"}"
# @FUNCTION: xdg_environment_reset
# @DESCRIPTION:
# Clean up environment for clean builds.
xdg_environment_reset() {
# Prepare XDG base directories
export XDG_DATA_HOME="${HOME}/.local/share"
export XDG_CONFIG_HOME="${HOME}/.config"
export XDG_CACHE_HOME="${HOME}/.cache"
export XDG_STATE_HOME="${HOME}/.local/state"
export XDG_RUNTIME_DIR="${T}/run"
mkdir -p "${XDG_DATA_HOME}" "${XDG_CONFIG_HOME}" "${XDG_CACHE_HOME}" \
"${XDG_STATE_HOME}" "${XDG_RUNTIME_DIR}" || die
# This directory needs to be owned by the user, and chmod 0700
# https://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
chmod 0700 "${XDG_RUNTIME_DIR}" || die
unset DBUS_SESSION_BUS_ADDRESS
}
# @FUNCTION: xdg_desktop_database_update
# @DESCRIPTION:
# Updates the .desktop files database.
# Generates a list of mimetypes linked to applications that can handle them
xdg_desktop_database_update() {
if [[ ${EBUILD_PHASE} != post* ]]; then
die "xdg_desktop_database_update must be used in pkg_post* phases."
fi
if ! type update-desktop-database &>/dev/null; then
debug-print "update-desktop-database is not found"
return
fi
ebegin "Updating .desktop files database"
update-desktop-database -q "${EROOT}${DESKTOP_DATABASE_DIR}"
eend $?
}
# @FUNCTION: xdg_icon_cache_update
# @DESCRIPTION:
# Updates icon theme cache files under /usr/share/icons.
# This function should be called from pkg_postinst and pkg_postrm.
xdg_icon_cache_update() {
if [[ ${EBUILD_PHASE} != post* ]]; then
die "xdg_icon_cache_update must be used in pkg_post* phases."
fi
if ! type gtk-update-icon-cache &>/dev/null; then
debug-print "gtk-update-icon-cache is not found"
return
fi
ebegin "Updating icons cache"
local dir retval=0
local fails=()
for dir in "${EROOT}"/usr/share/icons/*; do
if [[ -f ${dir}/index.theme ]]; then
if ! gtk-update-icon-cache -qf "${dir}"; then
debug-print "Updating cache failed on ${dir}"
# Add to the list of failures
fails+=("${dir}")
retval=2
fi
elif [[ $(ls "${dir}") = icon-theme.cache ]]; then
# Clear stale cache files after theme uninstallation
rm "${dir}/icon-theme.cache"
fi
if [[ -z $(ls "${dir}") ]]; then
# Clear empty theme directories after theme uninstallation
rmdir "${dir}"
fi
done
eend ${retval}
for dir in "${fails[@]}"; do
eerror "Failed to update cache with icon ${dir}"
done
}
# @FUNCTION: xdg_mimeinfo_database_update
# @DESCRIPTION:
# Update the mime database.
# Creates a general list of mime types from several sources
xdg_mimeinfo_database_update() {
if [[ ${EBUILD_PHASE} != post* ]]; then
die "xdg_mimeinfo_database_update must be used in pkg_post* phases."
fi
if ! type update-mime-database &>/dev/null; then
debug-print "update-mime-database is not found"
return
fi
# https://bugs.gentoo.org/819783
local -x PKGSYSTEM_ENABLE_FSYNC=0
ebegin "Updating shared mime info database"
update-mime-database "${EROOT}${MIMEINFO_DATABASE_DIR}"
eend $?
}
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