slitaz-base-files view rootfs/lib/libtaz.sh @ rev 324

libtaz.sh: indent status() as orgininaly (so many cmdline tools use it, we must an other way for log files)
author Christophe Lincoln <pankso@slitaz.org>
date Thu Feb 16 08:53:24 2017 +0100 (2017-02-16)
parents 5829aa52b9ee
children 4cb0e4cf962e
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
43
44
45 # i18n functions
46 _() { local T="$1"; shift; printf "$(gettext "$T")" "$@"; echo; }
47 _n() { local T="$1"; shift; printf "$(gettext "$T")" "$@"; }
48 _p() { local S="$1" P="$2" N="$3"; shift 3; printf "$(ngettext "$S" "$P" "$N")" "$@"; }
49
50 # Get terminal columns
51 get_cols() { stty size 2>/dev/null | awk -vc=$cols 'END{print c?c:($2 && $2<80)?$2:80}'; }
52
53 # Last command status
54 status() {
55 local ret_code=$?
56 [ -n "$quiet" -a "$ret_code" -eq 0 ] && return
57 [ -n "$quiet" ] && action "$saved_action" no-quiet
58
59 case $ret_code in
60 0) local msg="$okmsg" color="$okcolor";;
61 *) local msg="$ermsg" color="$ercolor";;
62 esac
63 case $output in
64 raw|gtk) echo " $msg";;
65 html) echo " <span class=\"float-right color$color\">$msg</span>";;
66 *)
67 local cols=$(get_cols)
68 local scol=$((${cols:-80} - 10))
69 echo -e "\\033[${scol}G[ \\033[1;${color}m$msg\\033[0;39m ]";;
70 esac
71 }
72
73 # Line separator
74 separator() {
75 [ -n "$quiet" ] && return
76 case $output in
77 gtk) echo '--------';;
78 html) echo -n '<hr/>';;
79 *) printf "%$(get_cols)s\n" | tr ' ' "${1:-=}";;
80 esac
81 }
82
83 # New line
84 newline() {
85 [ -z "$quiet" ] && echo
86 }
87
88 # Display a bold message
89 boldify() {
90 [ -n "$quiet" ] && return
91 case $output in
92 raw) echo "$@" ;;
93 gtk) echo "<b>$@</b>" ;;
94 html) echo "<strong>$@</strong>" ;;
95 *) echo -e "\\033[1m$@\\033[0m" ;;
96 esac
97 }
98
99 # Colorize message
100 colorize() {
101 [ -n "$quiet" ] && return
102 : ${color=$1}
103 shift
104 case $output in
105 raw|gtk) echo "$@";;
106 html) echo -n "<span class=\"color$color\">$@</span>";;
107 *) case $color in
108 0*) echo -e "\\033[${color:-38}m$@\\033[39m";;
109 *) echo -e "\\033[1;${color:-38}m$@\\033[0;39m";;
110 esac;;
111 esac
112 unset color
113 }
114
115 # Indent text
116 indent() {
117 [ -n "$quiet" ] && return
118 local in="$1"
119 shift
120 echo -e "\033["$in"G $@";
121 }
122
123 # Extended MeSsaGe output
124 emsg() {
125 [ -n "$quiet" ] && return
126 local sep="\n$(separator)\n"
127 case $output in
128 raw)
129 echo "$@" | sed -e 's|<b>||g; s|</b>||g; s|<c [0-9]*>||g; \
130 s|</c>||g; s|<->|'$sep'|g; s|<n>|\n|g; s|<i [0-9]*>| |g' ;;
131 gtk)
132 echo "$@" | sed -e 's|<c [0-9]*>||g; s|</c>||g; s|<->|'$sep'|g; \
133 s|<n>|\n|g; s|<i [0-9]*>| |g' ;;
134 html)
135 echo "$@" | sed -e 's|<b>|<strong>|g; s|</b>|</strong>|g; \
136 s|<c \([0-9]*\)>|<span class="color\1">|g; s|</c>|</span>|g; \
137 s|<n>|<br/>|g; s|<->|<hr/>|g; s|<i [0-9]*>| |g' ;;
138 *)
139 echo -en "$(echo "$@" | sed -e 's|<b>|\\033[1m|g; s|</b>|\\033[0m|g;
140 s|<c 0\([0-9]*\)>|\\033[\1m|g; s|<c \([1-9][0-9]*\)>|\\033[1;\1m|g;
141 s|</c>|\\033[0;39m|g; s|<n>|\n|g;
142 s|<->|'$sep'|g; s|<i \([0-9]*\)>|\\033[\1G|g')"
143 [ "$1" != "-n" ] && echo
144 ;;
145 esac
146 }
147
148 # Check if user is logged as root
149 check_root() {
150 if [ $(id -u) -ne 0 ]; then
151 lgettext "You must be root to execute:"; echo " $(basename $0) $@"
152 exit 1
153 fi
154 }
155
156 # Display debug info when --debug is used.
157 debug() {
158 [ -n "$debug" ] && echo "$(colorize $decolor 'DEBUG:') $1"
159 }
160
161 # Report error and finish work
162 die() { longline "$(_ "$@")" >&2; exit 1; }
163
164 # Interactive mode
165 im() { tty -s; }
166
167 # Confirmation
168 confirm() {
169 local answer='' defanswer='n'
170 # Check auto-answer, if any
171 [ -n "$yes" ] && answer='y'
172 [ -n "$noconfirm" ] && answer='n'
173 # Print question
174 if [ -n "$1" ]; then
175 case "$2" in
176 '') echo -n "$1 ";;
177 y|Y) echo -n "$1 [$(translate_query Y)/$(translate_query n)] "; defanswer='y';;
178 *) echo -n "$1 [$(translate_query y)/$(translate_query N)] ";;
179 esac
180 else
181 echo -n " [$(translate_query y)/$(translate_query N)] ? "
182 fi
183 # Is it auto-answer?
184 if [ -z "$answer" ]; then
185 im && read -t ${timeout:-30} answer
186 [ -z "$answer" ] && answer="$(translate_query "$defanswer")"
187 else
188 translate_query "$answer"; echo ' (auto)'
189 fi
190 # Return true/false to use in conditions
191 [ "$answer" == "$(translate_query y)" -o "$answer" == "$(translate_query Y)" ]
192 }
193
194 # Log activities
195 log() {
196 echo "$(date '+%F %R') : $@" >> ${activity:-/var/log/slitaz/libtaz.log}
197 }
198
199 # Print two-column list of options with descriptions
200 optlist() {
201 [ -n "$quiet" ] && return
202 local in="$(echo "$1" | sed 's| *| |g')" w=$(get_cols) col1=1 line
203 IFS=$'\n'
204 for line in $in; do
205 col=$(echo -n "$line" | cut -f1 | wc -m)
206 [ $col -gt $col1 ] && col1=$col
207 done
208 echo "$in" | sed 's|\t|&\n|' | fold -sw$((w - col1 - 4)) | \
209 sed "/\t/!{s|^.*$|[$((col1 + 4))G&|g}" | sed "/\t$/{N;s|.*| &|;s|\t\n||}"
210 }
211
212 # Wrap words in long terminal message
213 longline() {
214 [ -n "$quiet" ] && return
215 local w=$(get_cols)
216 echo -e "$@" | fold -sw$w
217 }
218
219 # Print localized title
220 title() {
221 [ -n "$quiet" ] && return
222 case $output in
223 html) echo "<section><header>$(_ "$@")</header><pre class=\"scroll\">";;
224 *) newline; boldify "$(_ "$@")"; separator;;
225 esac
226 }
227
228 # Print footer
229 footer() {
230 [ -n "$quiet" ] && return
231 case $output in
232 html) echo "</pre><footer>$1</footer></section>";;
233 *) separator; echo "$1"; [ -n "$1" ] && newline;;
234 esac
235 }
236
237 # Print current action
238 saved_action=''
239 action() {
240 saved_action="$1"
241 [ -n "$quiet" -a -z "$2" ] && return
242 local w c scol msg chars
243 # Translators: 'w' is the width the wider translated message ('[ Done ]' or '[ Failed ]') takes in a terminal; place here the number
244 w=$(_ 'w'); w=${w/w/10}
245 c=$(get_cols)
246 scol=$(( $c - $w ))
247 msg="$(_n "$@" | fold -sw$scol)"
248 chars=$(echo -n "$msg" | tail -n1 | wc -m)
249 msg="$(printf '%s%'$(( $scol - $chars ))'s' "$msg" '')"
250
251 case $output in
252 raw|gtk|html) echo -n "$msg";;
253 *) echo -ne "\033[0;33m$msg\033[0m";;
254 esac
255 }
256
257 # Print long line as list item
258 itemize() {
259 [ -n "$quiet" ] && return
260 case $output in
261 gtk) echo "$@";;
262 *)
263 local inp="$@" w=$(get_cols) first offset
264 first="$(echo -e "$inp" | fold -sw$w | head -n1)"
265 echo "$first"
266 cols1="$(echo "${first:1}" | wc -c)"
267 offset=$(echo "$first" | sed -n 's|^\([^:\*-]*[:\*-]\).*$|\1|p' | wc -m)
268 echo "${inp:$cols1}" | fold -sw$((w - offset)) | awk \
269 '($0){printf "%'$offset's%s\n","",$0}'
270 ;;
271 esac
272 }