Allow to build multiple images with build command

Signed-off-by: Sébastien Luttringer <sebastien.luttringer@smartjog.com>

bin/is

@@ -105,10 +105,13 @@ def c_build(args):
     '''
     Build a source image in the current directory
     '''
+    for path in args.paths:
+        arrow("Build %s" % path)
+        arrowlevel(1)
         # build start time
         t0 = time.time()
         # load source image
-    simg = SourceImage(args.path)
+        simg = SourceImage(path)
         # do the job
         simg.build(force=args.force, force_payload=args.payload,
                    check=not args.no_check, script=not args.no_script)
@@ -116,6 +119,7 @@ def c_build(args):
         t1 = time.time()
         dt = int(t1 - t0)
         arrow(u"Build time: %s" % datetime.timedelta(seconds=dt))
+        arrowlevel(-1)
 
 def c_cat(args):
     '''
@@ -458,7 +462,7 @@ def arg_parser_init():
                    help="rebuild payloads if already exists")
     p.add_argument("-s", "--no-script", action="store_true",
                    help="doesn't execute build script")
-    p.add_argument("path", nargs="?", default=u".")
+    p.add_argument("paths", nargs="*", default=u".")
     p.set_defaults(func=c_build)
     # cat command parser
     p = subparser.add_parser("cat", help=c_cat.__doc__.lower())

completion/bash/is

@@ -72,7 +72,7 @@ _is() {
       build)
          [[ "$cur" == -* ]] && _opt '-h --help -f --force -p --payload -c --no-check -s --no-script' && return 0
          _count_args
-         (( args == 2 )) && _filedir -d
+         (( args >= 2 )) && _filedir -d
       ;;
       cat)
          [[ "$cur" == -* ]] && _opt '-h --help' && return 0