plan9fox/rc/bin/src
2011-03-30 18:29:07 +00:00

55 lines
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Executable file

#!/bin/rc
rfork e
path=(/bin/)
sym = 'threadmain?z
main?z'
fn dbsrc{
echo $sym | db $1 | sed '1d;/symbol not found/d;s/.*\(\) //'
}
fn go{
type=`{file <$1 | sed 's/stdin: //'}
switch($type){
case 'rc executable file'
plumbit $1 '(rc executable)'
case *executable* *'plan 9 boot image'*
plumbit `{dbsrc $1} '(executable)'
case *
echo 'src: can''t find source for '$1 - unrecognized type $type >[1=2]
}
}
fn plumbit{B $1}
fn usage{
echo usage: 'src [-n] [-s symbol] executable ...'>[1=2]
exit usage
}
while(~ $1 -*)
switch($1){
case -n
shift
fn plumbit {echo $1}
case -s
shift
# add main in case symbol is undefined
sym=$1'?z
main?z'
shift
case -*
usage
}
if(~ $#* 0) usage
for(i){
if(test -f $i) go $i
if not if(test -f /bin/$i) go /bin/$i
if not if(test -f /bin/*/$i) go /bin/*/$i
if not if(test -f /bin/*/*/$i) go /bin/*/*/$i
if not echo 'src: can''t find '$i
}