25 lines
770 B
Text
25 lines
770 B
Text
|
# $1 is the target name, eg. test.txt
|
||
|
|
# $2 in the same as $1. We'll talk about
|
||
|
|
# that in a later example.
|
||
|
|
# $3 is the temporary output file we should
|
||
|
|
# create. If this script is successful,
|
||
|
|
# redo will atomically replace $1 with $3.
|
||
|
|
|
||
|
|
if [ -e "$1.in" ]; then
|
||
|
|
# if a .in file exists, then do some
|
||
|
|
# text substitution.
|
||
|
|
#
|
||
|
|
# Remember, the user asks redo to build
|
||
|
|
# a particular *target* name. It's the .do
|
||
|
|
# file's job to figure out what source file(s)
|
||
|
|
# to use to generate the target.
|
||
|
|
redo-ifchange "$1.in" version date
|
||
|
|
read VERSION <version
|
||
|
|
read DATE <date
|
||
|
|
sed -e "s/%VERSION%/$VERSION/g" \
|
||
|
|
-e "s/%DATE%/$DATE/g" \
|
||
|
|
<$1.in >$3
|
||
|
|
else
|
||
|
|
echo "$0: Fatal: don't know how to build '$1'" >&2
|
||
|
|
exit 99
|
||
|
|
fi
|