nixpkgs/pkgs/servers/x11/xquartz/font_cache
2016-10-04 20:15:37 +02:00

241 lines
6.4 KiB
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Executable file

#!@shell@
export PATH=@PATH@:$PATH
export FONTCONFIG_FILE="@FONTCONFIG_FILE@"
ENCODINGSDIR="@ENCODINGSDIR@"
FC_LOCKFILE=""
# Are we caching system fonts or user fonts?
system=0
# Are we including OSX font dirs ({/,~/,/System/}Library/Fonts)
osxfonts=1
# Do we want to force a recache?
force=0
# How noisy are we?
verbose=0
# Check if the data in the given directory is newer than its cache
check_dirty() {
local dir=$1
local fontfiles=""
local retval=1
# If the dir does not exist, we just exit
if [[ ! -d "${dir}" ]]; then
return 1
fi
# Create a list of all files in the dir
# Filter out config / cache files. Ugly... counting down the day until
# xfs finally goes away
fontfiles="$(find ${dir}/ -maxdepth 1 -type f | awk '$0 !~ /fonts\..*$|^.*\.dir$/ {print}')"
# Fonts were deleted (or never there). Kill off the caches
if [[ -z "${fontfiles}" ]] ; then
local f
for f in "${dir}"/fonts.* "${dir}"/encodings.dir; do
if [[ -f ${f} ]] ; then
rm -f "${f}"
fi
done
return 1
fi
# Force a recache
if [[ ${force} == 1 ]] ; then
retval=0
fi
# If we don't have our caches, we are dirty
if [[ ! -f "${dir}/fonts.list" || ! -f "${dir}/fonts.dir" || ! -f "${dir}/encodings.dir" ]]; then
retval=0
fi
# Check that no files were added or removed....
if [[ "${retval}" -ne 0 && "$(cat ${dir}/fonts.list)" != "${fontfiles}" ]] ; then
retval=0
fi
# Check that no files were updated....
if [[ "${retval}" -ne 0 ]] ; then
local changed="$(find ${dir}/ -type f -cnewer ${dir}/fonts.dir | awk '$0 !~ /fonts\..*$|^.*\.dir$/ {print}')"
if [[ -n "${changed}" ]] ; then
retval=0
fi
fi
# Recreate fonts.list since something changed
if [[ "${retval}" == 0 ]] ; then
echo "${fontfiles}" > "${dir}"/fonts.list
fi
return ${retval}
}
get_fontdirs() {
local d
if [[ $system == 1 ]] ; then
if [[ $osxfonts == 1 ]] ; then
find {/System/,/}Library/Fonts -type d
fi
else
if [[ $osxfonts == 1 && -d "${HOME}/Library/Fonts" ]] ; then
find "${HOME}/Library/Fonts" -type d
fi
if [[ -d "${HOME}/.fonts" ]] ; then
find "${HOME}/.fonts" -type d
fi
fi
}
setup_fontdirs() {
local x=""
local fontdirs=""
local changed="no"
umask 022
if [[ $system == 1 ]] ; then
echo "font_cache: Scanning system font directories to generate X11 font caches"
else
echo "font_cache: Scanning user font directories to generate X11 font caches"
fi
OIFS=$IFS
IFS='
'
for x in $(get_fontdirs) ; do
if [[ -d "${x}" ]] && check_dirty "${x}" ; then
if [[ -z "${fontdirs}" ]] ; then
fontdirs="${x}"
else
fontdirs="${fontdirs}${IFS}${x}"
fi
fi
done
if [[ -n "${fontdirs}" ]] ; then
echo "font_cache: Making fonts.dir for updated directories."
for x in ${fontdirs} ; do
if [[ $verbose == 1 ]] ; then
echo "font_cache: ${x}"
fi
# First, generate fonts.scale for scaleable fonts that might be there
@MKFONTSCALE@ \
-a $ENCODINGSDIR/encodings.dir \
-a $ENCODINGSDIR/large/encodings.dir \
-- ${x}
# Next, generate fonts.dir
if [[ $verbose == 1 ]] ; then
@MKFONTDIR@ \
-e $ENCODINGSDIR \
-e $ENCODINGSDIR/large \
-- ${x}
else
@MKFONTDIR@ \
-e $ENCODINGSDIR \
-e $ENCODINGSDIR/large \
-- ${x} > /dev/null
fi
done
fi
IFS=$OIFS
# Finally, update fontconfig's cache
echo "font_cache: Updating FC cache"
if [[ $system == 1 ]] ; then
@FC_CACHE@ -s \
$([[ $force == 1 ]] && echo "-f -r") \
$([[ $verbose == 1 ]] && echo "-v")
else
@FC_CACHE@ \
$([[ $force == 1 ]] && echo "-f -r") \
$([[ $verbose == 1 ]] && echo "-v")
fi
echo "font_cache: Done"
}
do_usage() {
echo "font_cache [options]"
echo " -f, --force : Force cache recreation"
echo " -n, --no-osxfonts : Just cache X11 font directories"
echo " (-n just pertains to XFont cache, not fontconfig)"
echo " -s, --system : Cache system font dirs instead of user dirs"
echo " -v, --verbose : Verbose Output"
}
cleanup() {
[[ -r "${FC_LOCKFILE}" ]] && rm -f "${FC_LOCKFILE}"
exit 1
}
while [[ $# -gt 0 ]] ; do
case $1 in
-s|--system) system=1 ;;
-f|--force) force=1 ;;
-v|--verbose) verbose=1 ;;
-n|--no-osxfonts) osxfonts=0 ;;
--help) do_usage ; exit 0 ;;
*) do_usage ; exit 1 ;;
esac
shift
done
if [[ $system == 1 ]] ; then
FC_LOCKFILE="/tmp/font_cache.$UID.lock"
elif [[ -w "${TMPDIR}" ]] ; then
FC_LOCKFILE="${TMPDIR}/font_cache.lock"
elif [[ -w "/tmp" ]] ; then
FC_LOCKFILE="/tmp/font_cache.$UID.lock"
else
FC_LOCKFILE="${HOME}/.font_cache.lock"
fi
if [[ -x /usr/bin/lockfile ]] ; then
if /usr/bin/lockfile -r 0 -l 240 -s 4 -! "${FC_LOCKFILE}" ; then
echo "font_cache is already running." >&2
echo "If you believe this to be erroneous, please remove ${FC_LOCKFILE}." >&2
exit 1
fi
else
if [[ -r "${FC_LOCKFILE}" ]] ; then
read OLD_PID < "${FC_LOCKFILE}"
if kill -0 ${OLD_PID} >& /dev/null ; then
echo "font_cache is already running with PID ${OLD_PID}." >&2
echo "If you believe this to be erroneous, please remove ${FC_LOCKFILE}." >&2
exit 1
fi
echo "Removing stale ${FC_LOCKFILE}" >&2
rm -f "${FC_LOCKFILE}"
fi
echo $$ > "${FC_LOCKFILE}"
if [[ ! -r "${FC_LOCKFILE}" ]] ; then
echo "Unable to write to ${FC_LOCKFILE}." >&2
exit 1
fi
# Now make sure we didn't collide mid-air
read OLD_PID < "${FC_LOCKFILE}"
if [[ $$ != ${OLD_PID} ]] ; then
echo "font_cache is already running with PID ${OLD_PID}." >&2
exit 1
fi
fi
trap cleanup SIGINT SIGQUIT SIGABRT SIGTERM
setup_fontdirs
rm -f "${FC_LOCKFILE}"