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|
#!/bin/rc
flag e +
while(~ $1 -*) switch($1) {
case -d
cd $2
shift 2
}
if(~ $#* 0) outdir=out
if not outdir=$1
mkdir -p $outdir
ifs=() {
abs_srcdir=`{readlink -f . | head -c -1}
abs_outdir=`{readlink -f $outdir | head -c -1}
}
# find relative path from outdir to srcdir
ifs=/ {
srcdir=`{printf %s $abs_srcdir}
outdir=`{printf %s $abs_outdir}
}
if(~ $#outdir 0) ifs=() { rel_srcdir=`{ifs=() pwd | head -c -1} }
if not n=() {
for(i in `{awk 'BEGIN {for (i = 1; i <= '$#outdir'; i++) print i}'}) {
if(~$#n 0 && ! ~ $srcdir($i) $outdir($i)) {
ifs=() { rel_srcdir=`{printf /%s $srcdir($i-) | tail -c +2} }
n=$i
}
if(~ $#n 1) {
if(~ $#rel_srcdir 0) rel_srcdir=..
if not rel_srcdir=../$rel_srcdir
}
}
}
root_srcdir=$abs_srcdir
root_outdir=$abs_outdir
setup_outs=( build.ninja )
setup_ins=()
fn set {
var=$1 {
shift
printf '%s = %s\n' $var $"*
}
}
fn subninja {
echo subninja $*
}
fn include {
echo include $*
}
fn rule {
name=$1 {
shift
echo rule $name
for(var in 'command = '$* $ninja_vars) {
echo ' '$var
}
}
}
fn build {
out=$1 rule=$2 {
shift 2
echo build $out: $rule $*
}
for(var in $ninja_vars) echo ' '$var
}
fn subgen {
olddir=$dir
dir=$1
srcdir=$root_srcdir/$dir
outdir=$root_outdir/$dir
printf 'generating in %s\n' $dir >[1=2]
setup_outs=( $setup_outs $dir/local.ninja )
setup_ins=( $setup_ins '$root_srcdir'/$dir/gen.rc )
mkdir -p $outdir
cd $srcdir
{
echo 'outdir = '$dir
echo 'srcdir = $root_srcdir/'$dir
. ./gen.rc
} >$outdir/local.ninja
cd $root_srcdir
dir=$olddir
srcdir=$root_srcdir/$dir
outdir=$root_outdir/$dir
}
subgen .
{
set root_srcdir $rel_srcdir
set root_outdir .
include '$root_srcdir/config.ninja'
include '$root_srcdir/rules.ninja'
ninja_vars=( 'generator = 1' 'pool = console' ) {
build $"setup_outs gen '$root_srcdir/setup.rc' '|' $setup_ins
}
subninja local.ninja
} >$root_outdir/build.ninja.tmp
mv $root_outdir/^( build.ninja.tmp build.ninja )
|
