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ruby--ruby/tool/ifchange
nobu e712233387 ignore dump terminal
* tool/generic_erb.rb, tool/ifchange: no colorization if tput
  returned nothing or dump terminal.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52395 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-31 00:02:19 +00:00

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#!/bin/sh
# usage: ifchange target temporary
set -e
timestamp=
keepsuffix=
empty=
color=auto
until [ $# -eq 0 ]; do
case "$1" in
--timestamp)
timestamp=.
;;
--timestamp=*)
timestamp=`expr \( "$1" : '[^=]*=\(.*\)' \)`
;;
--keep)
keepsuffix=.old
;;
--keep=*)
keepsuffix=`expr \( "$1" : '[^=]*=\(.*\)' \)`
;;
--empty)
empty=yes
;;
--color)
color=always
;;
--color=*)
color=`expr \( "$1" : '[^=]*=\(.*\)' \)`
;;
*)
break
;;
esac
shift
done
target="$1"
temp="$2"
if [ "$temp" = - ]; then
temp="tmpdata$$.tmp~"
cat > "$temp" || exit $?
trap 'rm -f "$temp"' 0
fi
msg_begin= msg_unchanged= msg_updated= msg_reset=
if [ "$color" = always -o \( "$color" = auto -a -t 1 \) ]; then
msg_begin="["
case "`tput smso 2>/dev/null`" in
"$msg_begin"*m)
if [ ${TEST_COLORS:+set} ]; then
msg_unchanged=`expr ":$TEST_COLORS:" : ".*:pass=\([^:]*\):"`
msg_updated=`expr ":$TEST_COLORS:" : ".*:fail=\([^:]*\):"`
fi
msg_unchanged="${msg_begin}${msg_unchanged:-32;1}m"
msg_updated="${msg_begin}${msg_updated:-31;1}m"
msg_reset="${msg_begin}m"
;;
esac
unset msg_begin
fi
if [ -f "$target" -a ! -${empty:+f}${empty:-s} "$temp" ] || cmp "$target" "$temp" >/dev/null 2>&1; then
echo "$target ${msg_unchanged}unchanged${msg_reset}"
rm -f "$temp"
else
echo "$target ${msg_updated}updated${msg_reset}"
[ x"${keepsuffix}" = x ] || mv -f "$target" "${target}${keepsuffix}"
mv -f "$temp" "$target"
fi
if [ -n "${timestamp}" ]; then
if [ x"${timestamp}" = x. ]; then
case "$target" in
*/*)
timestamp=`dirname "$target"`/.time.`basename "$target"`
;;
*)
timestamp=.time."$target"
;;
esac
fi
: > "$timestamp"
fi