Daniel Pocock <[email protected]> writes:
> Thanks for that - the sed example appears to be the type of thing I want.
> However, is there a more concise way to do this? I was thinking there may
> be some way to invoke sed or m4 on a template in much the way that gcc is
> invoked for *.c
Half of that equation would be a more generic script. Attached is what we
use for INN (which has a bunch of INN-specific bits, but also has the
basic framework for things).
The other half would be to set up a way of automatically running that
script on particular files, and that's something I've never done. I just
write explicit rules.
--
Russ Allbery ([email protected]) <http://www.eyrie.org/~eagle/>
#! /bin/sh
## $Id: fixconfig.in 8471 2009-05-17 08:25:35Z iulius $
##
## Make variable substitutions in configuration files.
##
## This script does something very similar to what config.status does, but
## it fully resolves the various path variables (prefix, exec_prefix, etc.)
## so that they don't contain any variable substitutions. It's easier to
## do this in a separate script than try to use eval or the like to resolve
## the variable names inside configure, particularly since prefix and
## exec_prefix aren't set until the end of the script.
# The paths set by configure.
pref...@prefix@
exec_pref...@exec_prefix@
bind...@bindir@
libexecd...@libexecdir@
libd...@libdir@
sbind...@sbindir@
sysconfd...@sysconfdir@
# Additional paths specific to INN.
controld...@controldir@
dbd...@dbdir@
filterd...@filterdir@
httpd...@httpdir@
libperld...@libperldir@
logd...@logdir@
rund...@rundir@
spoold...@spooldir@
tmpd...@tmpdir@
# Additional variables that are substituted into configuration files.
do_pgpveri...@do_pgpverify@
hostna...@hostname@
sendma...@sendmail@
# We can probably just assume sed is on the path, but since we have it, we may
# as well use it.
s...@sed@
input="$1"
if [ -z "$input" ] ; then
echo "No input file specified" >&2
exit 1
fi
output="$2"
if [ -z "$output" ] ; then
output=`echo "$input" | $SED -e 's/\.in$//'`
fi
if [ x"$input" = x"$output" ] ; then
echo "No output file specified and input file doesn't end in .in" >&2
exit 1
fi
$SED -e "s,@pref...@],$prefix,g" \
-e "s,@bind...@],$bindir,g" \
-e "s,@libexecd...@],$libexecdir,g" \
-e "s,@libd...@],$libdir,g" \
-e "s,@sbind...@],$sbindir,g" \
-e "s,@sysconfd...@],$sysconfdir,g" \
-e "s,@controld...@],$CONTROLDIR,g" \
-e "s,@dbd...@],$DBDIR,g" \
-e "s,@filterd...@],$FILTERDIR,g" \
-e "s,@httpd...@],$HTTPDIR,g" \
-e "s,@libperld...@],$LIBPERLDIR,g" \
-e "s,@logd...@],$LOGDIR,g" \
-e "s,@rund...@],$RUNDIR,g" \
-e "s,@spoold...@],$SPOOLDIR,g" \
-e "s,@tmpd...@],$tmpdir,g" \
-e "s,@do_pgpveri...@],$DO_PGPVERIFY,g" \
-e "s,@hostna...@],$HOSTNAME,g" \
-e "s,@sendma...@],$SENDMAIL,g" < "$input" > "$output"
