I've got version 1.0~a37-2 of live-helper on my machine (the latest
from sid) and lh_clean doesn't deal with incorrect arguments properly
- it calls itself with the --usage flag if it doesn't understand an
argument. There is no '--usage' case in the switch tree. The
attached patch fixes this, using text from the man page for lh_clean.
Rather than call the script and invoke another copy of the shell, it
might be preferrable to have a "usage" subroutine that is called by
the '--help' or '--usage' flags and also in case of a bad argument.
This would prevent the infinite-loop behavior I saw - even if the sub
were to become undefined it would simply fall through rather than
start a bunch of new processes (nearly a thousand by the time I
figured out what was going on). I didn't implement this in my patch
in case there's some subtlety I'm missing.
Thanks!
Will
--- lh_clean.orig 2007-11-28 02:09:29.000000000 +0000
+++ lh_clean 2007-11-28 02:11:07.000000000 +0000
@@ -116,6 +116,37 @@
rm -f .stage/source*
;;
+ --usage)
+ cat <<EOF
+lh_clean [live-helper options] [--all] [--cache] [--chroot] [--binary] [--purge] [--remove] [--stage]
+ [--source]
+
+ --all
+ removes chroot, binary, stage, and source. This is the default operation.
+
+ --cache
+ removes all cache directories.
+
+ --chroot
+ unmounts and removes the chroot directory. If bootstrap cache is available, the system is reset to
+ bootstrap stage.
+
+ --binary
+ removes all binary related caches, directories, and stages files.
+
+ --purge
+ removes everything (including cache) but config.
+
+ --remove
+ removes everything (including package cache, but not stage cache) but config.
+
+ --stage
+ removes all stage files.
+
+ --source
+ removes all source related caches, directories, and stage files.
+EOF
+ ;;
*)
"${0}" --usage
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