launchers/9p : passage à Perl

qemu/launchers/9p

@@ -1,11 +1,22 @@
-#!/usr/bin/env sh
-base=$(echo "$QEMUSH_BASE" | cut -d , -f 1)
-QEMUSH_BASE=$(echo "$QEMUSH_BASE" | sed "s/^${base}//" | sed 's/^,//')
+#!/usr/bin/env perl
+use warnings;
+use strict;
 
-set -- "$base" \
-	-fsdev local,security_model=passthrough,id=fsdev0,path="${HOME}/shared/${QEMUSH_NAME}" \
-	-device virtio-9p-pci,id=fs0,fsdev=fsdev0,mount_tag=shared \
-	"$@"
+my @launchers_chain = ("kvm");
 
-set -x
-exec "$@"
+if (defined $ENV{'QEMUSH_BASE'}) {
+    @launchers_chain = split ",", $ENV{'QEMUSH_BASE'};
+}
+
+my $base = shift @launchers_chain;
+$ENV{'QEMUSH_BASE'} = join ",", @launchers_chain;
+
+my @command = (
+    $base,
+    "-fsdev", "local,security_model=passthrough,id=fsdev0,path=" . $ENV{'HOME'} . "/shared/" . $ENV{'QEMUSH_NAME'},
+    "-device", "virtio-9p-pci,id=fs0,fsdev=fsdev0,mount_tag=shared",
+    @ARGV
+);
+
+print "+ exec ", join(" ", @command), "\n";
+exec @command;