Merge branch 'master' of https://github.com/zevweiss/virtme

This improves script mode.

virtme/commands/run.py

@@ -198,7 +198,9 @@ def main():
     export_virtfs(qemu, arch, qemuargs, guest_tools_path,
                   'virtme.guesttools')
 
-    initargs = ['-c', 'mount -t tmpfs run /run;mkdir -p /run/virtme/guesttools;/bin/mount -n -t 9p -o ro,version=9p2000.L,trans=virtio,access=any virtme.guesttools /run/virtme/guesttools;exec /run/virtme/guesttools/virtme-init']
+    initcmds = ['mkdir -p /run/virtme/guesttools',
+                '/bin/mount -n -t 9p -o ro,version=9p2000.L,trans=virtio,access=any virtme.guesttools /run/virtme/guesttools',
+                'exec /run/virtme/guesttools/virtme-init']
 
     # Map modules
     if moddir is not None:
@@ -295,7 +297,7 @@ def main():
 
     has_script = False
 
-    def do_script(shellcmd):
+    def do_script(shellcmd, use_exec=False):
         if args.graphics:
             arg_fail('scripts and --graphics are mutually exclusive')
 
@@ -328,8 +330,8 @@ def do_script(shellcmd):
         # Ask virtme-init to run the script
         config.virtme_data[b'script'] = """#!/bin/sh
 
-        exec {shellcmd}
-        """.format(shellcmd=shellcmd).encode('ascii')
+        {prefix}{shellcmd}
+        """.format(shellcmd=shellcmd, prefix="exec " if use_exec else "").encode('ascii')
 
         # Nasty issue: QEMU will set O_NONBLOCK on fds 0, 1, and 2.
         # This isn't inherently bad, but it can cause a problem if
@@ -352,7 +354,7 @@ def do_script(shellcmd):
         do_script(args.script_sh)
 
     if args.script_exec is not None:
-        do_script(shlex.quote(args.script_exec))
+        do_script(shlex.quote(args.script_exec), use_exec=True)
 
     if args.net:
         qemuargs.extend(['-net', 'nic,model=virtio'])
@@ -395,6 +397,7 @@ def do_script(shellcmd):
             'rw' if args.rw else 'ro',
         ])
         initrdpath = None
+        initcmds.insert(0, 'mount -t tmpfs run /run')
 
     # Now that we're done setting up kernelargs, append user-specified args
     # and then initargs
@@ -406,7 +409,7 @@ def do_script(shellcmd):
     # sure that 'init=' appears directly before '--'.
     kernelargs.append('init=/bin/sh')
     kernelargs.append('--')
-    kernelargs.extend(initargs)
+    kernelargs.extend(['-c', ';'.join(initcmds)])
 
     if args.xen is None:
         # Load a normal kernel

virtme/guest/virtme-init

@@ -141,7 +141,7 @@ if [[ -x /run/virtme/data/script ]]; then
     fi
 
     log 'starting script'
-    setsid /run/virtme/data/script <>/dev/virtio-ports/virtme.scriptio 2>&1
+    setsid /run/virtme/data/script <>/dev/virtio-ports/virtme.scriptio 1>&0 2>&0
     log "script returned $?"
 
     # Hmm.  We should expose the return value somehow.

virtme/mkinitramfs.py

@@ -157,7 +157,7 @@ def mkinitramfs(out, config):
     if config.modfiles is not None:
         install_modules(cw, config.modfiles)
     for name,contents in config.virtme_data.items():
-        cw.write_file(b'/run_virtme/data/' + name, body=contents, mode=0o755)
+        cw.write_file(b'run_virtme/data/' + name, body=contents, mode=0o755)
     cw.write_file(b'init', body=generate_init(),
                   mode=0o755)
     cw.write_trailer()