support new option --builddir

tldp/config.py

@@ -59,6 +59,10 @@ def collectconfiguration(tag, argv):
                     '-o',
                     default=None, type=arg_isdirectory,
                     help='a directory containing LDP output documents')
+    ap.add_argument('--builddir', '--build-dir', '--build-directory',
+                    '-d',
+                    default=None, type=arg_isdirectory,
+                    help='a scratch directory used for building')
     ap.add_argument('--configfile', '--config-file', '--cfg',
                     '-c',
                     default='/etc/ldptool/ldptool.ini',

tldp/driver.py

@@ -14,7 +14,7 @@ from tldp.sources import SourceDocument, arg_issourcedoc
 from tldp.outputs import OutputDirectory
 from tldp.inventory import Inventory, status_classes, status_types, stypes
 from tldp.config import collectconfiguration
-from tldp.utils import arg_isloglevel
+from tldp.utils import arg_isloglevel, arg_isdirectory
 from tldp.doctypes.common import preamble, postamble
 
 logformat = '%(levelname)-9s %(name)s %(filename)s#%(lineno)s %(funcName)s %(message)s'
@@ -362,6 +362,14 @@ def run(argv):
         logger.info("Assuming --build, since no other action was specified...")
         config.build = True
 
+    if not config.builddir:
+        builddir = os.path.dirname(os.path.abspath(config.pubdir))
+        builddir = os.path.join(builddir, 'ldp-builddir')
+        if not arg_isdirectory(builddir):
+            logger.debug("Creating build directory %s.", builddir)
+            os.mkdir(builddir)
+        config.builddir = builddir
+
     if not config.pubdir:
         return need_repos_p + "to --build"
     return build(config, docs)