slitaz-base-files view rootfs/lib/libtaz.sh @ rev 327

libtaz.sh: get_cols is not working: find an other way :-)
author Christophe Lincoln <pankso@slitaz.org>
date Tue Feb 28 15:08:28 2017 +0100 (2017-02-28)
parents bbda30c03aff
children 133ee7fe8217
line source
1 #!/bin/sh
2 #
3 # SliTaz Base functions.
4 # Documentation: `man libtaz` or /usr/share/doc/slitaz/libtaz.txt
5 #
6 # Copyright (C) 2012-2015 SliTaz GNU/Linux - BSD License
7 #
8
9 . /usr/bin/gettext.sh
10 alias sed="busybox sed"
11
12 # Internal
13 lgettext() { gettext -d 'slitaz-base' "$@"; }
14 translate_query() {
15 case $1 in
16 y) lgettext "y";;
17 Y) lgettext "Y";;
18 n) lgettext "n";;
19 N) lgettext "N";;
20 # Support other cases but keep them untranslated.
21 *) echo "$1" ;;
22 esac
23 }
24 okmsg="$(lgettext 'Done')"
25 ermsg="$(lgettext 'Failed')"
26 : ${okcolor=32}
27 : ${ercolor=31}
28 : ${decolor=36}
29
30 # Parse cmdline options and store values in a variable.
31 for opt in "$@"; do
32 opt_name="${opt%%=*}"; opt_name="$(echo -n "${opt_name#--}" | tr -c 'a-zA-Z0-9' '_')"
33 case "$opt" in
34 --[0-9]*=*) export _$opt_name="${opt#*=}" ;;
35 --[0-9]*) export _$opt_name=yes ;;
36 --*=*) export $opt_name="${opt#*=}" ;;
37 --*) export $opt_name=yes ;;
38 esac
39 done
40 [ "$HTTP_REFERER" ] && output='html'
41
42 # i18n functions
43 _() { local T="$1"; shift; printf "$(gettext "$T")" "$@"; echo; }
44 _n() { local T="$1"; shift; printf "$(gettext "$T")" "$@"; }
45 _p() { local S="$1" P="$2" N="$3"; shift 3; printf "$(ngettext "$S" "$P" "$N")" "$@"; }
46
47 # Get terminal columns
48 get_cols() {
49 #stty size 2>/dev/null | awk -vc=$cols 'END{print c?c:($2 && $2<80)?$2:80}';
50 if ! stty size | cut -d " " -f 2; then
51 echo 80
52 fi
53 }
54
55 # Last command status
56 status() {
57 local ret_code=$?
58 [ -n "$quiet" -a "$ret_code" -eq 0 ] && return
59 [ -n "$quiet" ] && action "$saved_action" no-quiet
60
61 case $ret_code in
62 0) local msg="$okmsg" color="$okcolor";;
63 *) local msg="$ermsg" color="$ercolor";;
64 esac
65 case $output in
66 raw|gtk) echo " $msg";;
67 html) echo " <span class=\"float-right color$color\">$msg</span>";;
68 *)
69 local cols=$(get_cols)
70 local scol=$((${cols:-80} - 10))
71 echo -e "\\033[${scol}G[ \\033[1;${color}m$msg\\033[0;39m ]";;
72 esac
73 }
74
75 # Line separator
76 separator() {
77 [ -n "$quiet" ] && return
78 case $output in
79 gtk) echo '--------';;
80 html) echo -n '<hr/>';;
81 *) printf "%$(get_cols)s\n" | tr ' ' "${1:-=}";;
82 esac
83 }
84
85 # New line
86 newline() {
87 [ -z "$quiet" ] && echo
88 }
89
90 # Display a bold message
91 boldify() {
92 [ -n "$quiet" ] && return
93 case $output in
94 raw) echo "$@" ;;
95 gtk) echo "<b>$@</b>" ;;
96 html) echo "<strong>$@</strong>" ;;
97 *) echo -e "\\033[1m$@\\033[0m" ;;
98 esac
99 }
100
101 # Colorize message
102 colorize() {
103 [ -n "$quiet" ] && return
104 : ${color=$1}
105 shift
106 case $output in
107 raw|gtk) echo "$@";;
108 html) echo -n "<span class=\"color$color\">$@</span>";;
109 *) case $color in
110 0*) echo -e "\\033[${color:-38}m$@\\033[39m";;
111 *) echo -e "\\033[1;${color:-38}m$@\\033[0;39m";;
112 esac;;
113 esac
114 unset color
115 }
116
117 # Indent text
118 indent() {
119 [ -n "$quiet" ] && return
120 local in="$1"
121 shift
122 echo -e "\033["$in"G $@";
123 }
124
125 # Extended MeSsaGe output
126 emsg() {
127 [ -n "$quiet" ] && return
128 local sep="\n$(separator)\n"
129 case $output in
130 raw)
131 echo "$@" | sed -e 's|<b>||g; s|</b>||g; s|<c [0-9]*>||g; \
132 s|</c>||g; s|<->|'$sep'|g; s|<n>|\n|g; s|<i [0-9]*>| |g' ;;
133 gtk)
134 echo "$@" | sed -e 's|<c [0-9]*>||g; s|</c>||g; s|<->|'$sep'|g; \
135 s|<n>|\n|g; s|<i [0-9]*>| |g' ;;
136 html)
137 echo "$@" | sed -e 's|<b>|<strong>|g; s|</b>|</strong>|g; \
138 s|<c \([0-9]*\)>|<span class="color\1">|g; s|</c>|</span>|g; \
139 s|<n>|<br/>|g; s|<->|<hr/>|g; s|<i [0-9]*>| |g' ;;
140 *)
141 echo -en "$(echo "$@" | sed -e 's|<b>|\\033[1m|g; s|</b>|\\033[0m|g;
142 s|<c 0\([0-9]*\)>|\\033[\1m|g; s|<c \([1-9][0-9]*\)>|\\033[1;\1m|g;
143 s|</c>|\\033[0;39m|g; s|<n>|\n|g;
144 s|<->|'$sep'|g; s|<i \([0-9]*\)>|\\033[\1G|g')"
145 [ "$1" != "-n" ] && echo
146 ;;
147 esac
148 }
149
150 # Check if user is logged as root
151 check_root() {
152 if [ $(id -u) -ne 0 ]; then
153 lgettext "You must be root to execute:"; echo " $(basename $0) $@"
154 exit 1
155 fi
156 }
157
158 # Display debug info when --debug is used.
159 debug() {
160 [ -n "$debug" ] && echo "$(colorize $decolor 'DEBUG:') $1"
161 }
162
163 # Report error and finish work
164 die() { longline "$(_ "$@")" >&2; exit 1; }
165
166 # Interactive mode
167 im() { tty -s; }
168
169 # Confirmation
170 confirm() {
171 local answer='' defanswer='n'
172 # Check auto-answer, if any
173 [ -n "$yes" ] && answer='y'
174 [ -n "$noconfirm" ] && answer='n'
175 # Print question
176 if [ -n "$1" ]; then
177 case "$2" in
178 '') echo -n "$1 ";;
179 y|Y) echo -n "$1 [$(translate_query Y)/$(translate_query n)] "; defanswer='y';;
180 *) echo -n "$1 [$(translate_query y)/$(translate_query N)] ";;
181 esac
182 else
183 echo -n " [$(translate_query y)/$(translate_query N)] ? "
184 fi
185 # Is it auto-answer?
186 if [ -z "$answer" ]; then
187 im && read -t ${timeout:-30} answer
188 [ -z "$answer" ] && answer="$(translate_query "$defanswer")"
189 else
190 translate_query "$answer"; echo ' (auto)'
191 fi
192 # Return true/false to use in conditions
193 [ "$answer" == "$(translate_query y)" -o "$answer" == "$(translate_query Y)" ]
194 }
195
196 # Log activities
197 log() {
198 echo "$(date '+%F %R') : $@" >> ${activity:-/var/log/slitaz/libtaz.log}
199 }
200
201 # Print two-column list of options with descriptions
202 optlist() {
203 [ -n "$quiet" ] && return
204 local in="$(echo "$1" | sed 's| *| |g')" w=$(get_cols) col1=1 line
205 IFS=$'\n'
206 for line in $in; do
207 col=$(echo -n "$line" | cut -f1 | wc -m)
208 [ $col -gt $col1 ] && col1=$col
209 done
210 echo "$in" | sed 's|\t|&\n|' | fold -sw$((w - col1 - 4)) | \
211 sed "/\t/!{s|^.*$|[$((col1 + 4))G&|g}" | sed "/\t$/{N;s|.*| &|;s|\t\n||}"
212 }
213
214 # Wrap words in long terminal message
215 longline() {
216 [ -n "$quiet" ] && return
217 local w=$(get_cols)
218 echo -e "$@" | fold -sw$w
219 }
220
221 # Print localized title
222 title() {
223 [ -n "$quiet" ] && return
224 case $output in
225 html) echo "<section><header>$(_ "$@")</header><pre class=\"scroll\">";;
226 *) newline; boldify "$(_ "$@")"; separator;;
227 esac
228 }
229
230 # Print footer
231 footer() {
232 [ -n "$quiet" ] && return
233 case $output in
234 html) echo "</pre><footer>$1</footer></section>";;
235 *) separator; echo "$1"; [ -n "$1" ] && newline;;
236 esac
237 }
238
239 # Print current action
240 saved_action=''
241 action() {
242 saved_action="$1"
243 [ -n "$quiet" -a -z "$2" ] && return
244 local w c scol msg chars
245 # Translators: 'w' is the width the wider translated message ('[ Done ]' or '[ Failed ]') takes in a terminal; place here the number
246 w=$(_ 'w'); w=${w/w/10}
247 c=$(get_cols)
248 scol=$(( $c - $w ))
249 msg="$(_n "$@" | fold -sw$scol)"
250 chars=$(echo -n "$msg" | tail -n1 | wc -m)
251 msg="$(printf '%s%'$(( $scol - $chars ))'s' "$msg" '')"
252
253 case $output in
254 raw|gtk|html) echo -n "$msg";;
255 *) echo -ne "\033[0;33m$msg\033[0m";;
256 esac
257 }
258
259 # Print long line as list item
260 itemize() {
261 [ -n "$quiet" ] && return
262 case $output in
263 gtk) echo "$@";;
264 *)
265 local inp="$@" w=$(get_cols) first offset
266 first="$(echo -e "$inp" | fold -sw$w | head -n1)"
267 echo "$first"
268 cols1="$(echo "${first:1}" | wc -c)"
269 offset=$(echo "$first" | sed -n 's|^\([^:\*-]*[:\*-]\).*$|\1|p' | wc -m)
270 echo "${inp:$cols1}" | fold -sw$((w - offset)) | awk \
271 '($0){printf "%'$offset's%s\n","",$0}'
272 ;;
273 esac
274 }