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# file : build/dialog.bash
# copyright : Copyright (c) 2004-2012 Code Synthesis Tools CC
# license : GNU GPL v2; see accompanying LICENSE file
# bld_root - build root
# MAKE - GNU make executable
#
#@@ can't I do exec 1>&2 or something?
#
function echo_error ()
{
echo "$*" 1>&2
}
echo=echo_error
function abspath_old ()
{
local r=`eval echo $1` # for tilde-expansion
if [ "`echo $r | sed -e 's%^/.*$%%'`" ]; then
r=`pwd`/$r
fi
# remove trailing `/'
#
r=`echo $r | sed -e 's%^\(.\+\)/$%\1%'`
echo $r
}
# Get rid of jobserver info. See GNU make bug #12229.
#
MAKEFLAGS=`echo $MAKEFLAGS | sed -e 's/--jobserver-fds=[^ ]* *//g'`
MAKEFLAGS=`echo $MAKEFLAGS | sed -e 's/-j *//g'`
function abspath ()
{
local r=`eval echo $1` # for tilde-expansion
$MAKE --no-print-directory -f $bld_root/abspath.make $r
}
# $1 Default answer ('y' or 'n'). [optional]
#
function read_y_n ()
{
local r
while [ -z "$r" ]; do
read -p "[$1]: " r
if [ -z "$r" ]; then
r=$1
fi
case "$r" in
y) ;;
n) ;;
*) r= ;;
esac
done
echo $r
}
# $1 Default answer. [optional]
#
function read_value ()
{
local r
read -e -p "[$1]: " r
if [ -z "$r" ]; then
r=$1
fi
echo $r
}
# $1 Space-separated list of options.
# $2 Default answer from the list of options. [optional]
#
function read_option ()
{
local d o r i
if [ "$2" ]; then
d=1
for o in $1; do
if [ "$o" = "$2" ]; then break; fi
d=$(($d + 1))
done
fi
while [ -z "$r" ]; do
read -p "[$d]: " r
if [ -z "$r" ]; then
r=$d
fi
i=1
for o in $1; do
if [ "$i" = "$r" ]; then
echo $o
return 0
fi
i=$(($i + 1))
done
# User must have entered some junk so let's ask her again.
#
r=
done
}
# $1 Default answer. [optional]
#
# --command - path to be read is a command (implies --exist)
#
# --directory - path to be read is a directory
#
# --exist - path to be read should exist
#
#
function read_path ()
{
local command=0
local directory=0
local exist=0
# Parse options
#
while [ "$1" ]; do
case $1 in
--command)
command=1
exist=1
shift
;;
--directory)
directory=1
shift
;;
--exist)
exist=1
shift
;;
*)
break
;;
esac
done
local r tmp
while [ -z "$r" ]; do
read -e -p "[$1]: " r
if [ -z "$r" ]; then
r=$1
fi
if [ -z "$r" ]; then
continue
fi
if [ $command == 1 ]; then
# Do tilde expansion.
#
r=`eval echo $r`
# Extract first word.
#
local cmd=`echo $r | cut -d " " -f 1`
type -p $cmd 1>/dev/null 2>&1
if [ $? != 0 ]; then
$echo "$r: command not found"
r=
fi
continue
fi
# abspath & checks
#
r=`abspath $r`
if [ $exist == 1 ]; then
if [ $directory == 1 ]; then
if [ ! -d "$r" ]; then
$echo "$r: no such directory"
r=
continue
fi
else # something else
if [ ! -e "$r" ]; then
$echo "$r: no such file or directory"
r=
continue
fi
fi
fi
done
echo $r
}
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