name : update-fonts-scale #!/bin/sh # $Id: update-fonts-scale 189 2005-06-11 00:04:27Z branden $ # This program generates fonts.scale files for X font directories; see # mkfontdir(1x) for a description of the format of fonts.scale files. # Copyright 1999-2002, 2004 Branden Robinson. # Copyright 2006 Steve Langasek. # Licensed under the GNU General Public License, version 2. See the file # /usr/share/common-licenses/GPL or <https://www.gnu.org/copyleft/gpl.txt>. PROGNAME=${0##*/} # Query the terminal to establish a default number of columns to use for # displaying messages to the user. This is used only as a fallback in the event # the COLUMNS variable is not set. ($COLUMNS can react to SIGWINCH while the # script is running, and this cannot, only being calculated once.) DEFCOLUMNS=$(stty size 2>/dev/null | awk '{print $2}') || true if ! expr "$DEFCOLUMNS" : "[[:digit:]]\+$" >/dev/null 2>&1; then DEFCOLUMNS=80 fi # Display a message, wrapping lines at the terminal width. message () { echo "$*" | fmt -t -w ${COLUMNS:-$DEFCOLUMNS} } # Display a debugging message. trace () { if [ -n "$DEBUG" ]; then message "note: $*" >&2 fi } # Display a warning message. warn () { message "warning: $*" >&2 } # Display an error message and exit. die () { message "fatal error: $*" >&2 exit 1 } # Display a usage message. usage () { if [ -n "$*" ]; then message "usage error: $*" fi cat <<EOF Usage: $PROGNAME DIRECTORY ... $PROGNAME { -h | --help } This program combines scalable X font information from several packages into a single file that is placed in each specified X font directory DIRECTORY. This utility is primarily useful to Debian package maintainer scripts. See update-fonts-scale(8) for more information. Options: -h, --help display this usage message and exit EOF } X11R7_LAYOUT= # Validate arguments. case "$1" in -h|--help) usage exit 0 ;; -7|--x11r7-layout) X11R7_LAYOUT=true shift ;; esac case "$1" in -*) usage "unrecognized option" >&2 exit 2 ;; esac if [ $# -eq 0 ]; then usage "one or more font directories must be specified" >&2 exit 2 fi while [ -n "$1" ]; do # Try to be clever about the argument; were we given an absolute path? if expr "$1" : "/.*" >/dev/null 2>&1; then # Yes; an absolute path to an X font directory was provided. X11R7DIR=$1 ETCDIR=/etc/X11/fonts/${X11R7DIR##*/} ETC7DIR=/etc/X11/fonts/X11R7/${X11R7DIR##*/} if [ "$X11R7DIR" = "$ETCDIR" ] || [ "$X11R7DIR" = "$ETC7DIR" ]; then # We were given an /etc directory as an argument. die "path to X font directory must be used" else warn "absolute path $X11R7DIR was provided" fi else # No; a relative path was provided -- assume we were given just the # basename. X11R7DIR=/usr/share/fonts/X11/$1 ETCDIR=/etc/X11/fonts/$1 ETC7DIR=/etc/X11/fonts/X11R7/$1 fi shift # Confirm that the directories to be operated on exist. VALIDSRC= if [ -d "$ETCDIR" ]; then VALIDSRC=yes else warn "$ETCDIR does not exist or is not a directory" fi if [ -d "$ETC7DIR" ]; then VALIDSRC=yes else if [ -n "$X11R7_LAYOUT" ]; then warn "$ETC7DIR does not exist or is not a directory" fi fi VALIDDEST= if [ -d "$X11R7DIR" ]; then VALIDDEST=yes else warn "$X11R7DIR does not exist or is not a directory" fi if [ -z "$VALIDSRC" ] || [ -z "$VALIDDEST" ]; then continue fi # Are there any files to process? if [ "$(echo "$ETCDIR"/*.scale "$ETC7DIR"/*.scale)" != "$ETCDIR/*.scale $ETC7DIR/*.scale" ] then if [ -n "$X11R7DIR" ] && [ -d "$X11R7DIR" ]; then for SCALEFILE in "$ETCDIR"/*.scale "$ETC7DIR"/*.scale; do [ -e "$SCALEFILE" ] || continue # Only write fonts to the .scale file that actually exist, so # that removed-but-not-purged scalable font packages do not # register nonexistent fonts; this has the desirable side effect # that the count at the top of the file is also omitted. # # XXX: This technique will be tricked into yielding false # negatives if the font filename has whitespace in it. while read FONTFILE FONTNAME; do if [ -f "$X11R7DIR/$FONTFILE" ]; then echo "$FONTFILE $FONTNAME" \ >>"$X11R7DIR/fonts.scale.update-tmp" else trace "$SCALEFILE references nonexistent font file" \ "$FONTFILE; skipping" fi done <"$SCALEFILE" done if [ -e "$X11R7DIR/fonts.scale.update-tmp" ]; then # Write the new scale file to a temporary location in case we # are interrupted. Write the new count to the top of file. Use # cat and pipe to wc so wc doesn't report the filename. cat "$X11R7DIR/fonts.scale.update-tmp" \ | wc -l | tr -d '[:blank:]' \ >"$X11R7DIR/fonts.scale.update-new" cat "$X11R7DIR/fonts.scale.update-tmp" \ >>"$X11R7DIR/fonts.scale.update-new" mv "$X11R7DIR/fonts.scale.update-new" "$X11R7DIR/fonts.scale" rm "$X11R7DIR/fonts.scale.update-tmp" else # No font in the processed *.scale files was in the current # directory, so remove fonts.scale. rm -f "$X11R7DIR/fonts.scale" fi fi else if [ -n "$X11R7DIR" ] && [ -d "$X11R7DIR" ]; then # No files to process; remove any fonts.scale file already in the # font directory. rm -f "$X11R7DIR/fonts.scale" # Remove the font directory if it is empty. rmdir "$X11R7DIR" >/dev/null 2>&1 || true fi fi done exit 0 # vim:set ai et sts=4 sw=4 tw=80: