Add -d and -j options to diy

Also add -j to the common arguments

lib/spack/spack/cmd/common/arguments.py

@@ -105,3 +105,7 @@ def _specs(self, **kwargs):
 _arguments['very_long'] = Args(
     '-L', '--very-long', action='store_true',
     help='Show full dependency hashes as well as versions.')
+
+_arguments['jobs'] = Args(
+    '-j', '--jobs', action='store', type=int, dest="jobs",
+    help="Explicitly set number of make jobs.  Default is #cpus.")

lib/spack/spack/cmd/diy.py

@@ -38,6 +38,10 @@
 
 
 def setup_parser(subparser):
+    arguments.add_common_arguments(subparser, ['jobs'])
+    subparser.add_argument(
+        '-d', '--source-path', dest='source_path', default=None,
+        help="Path to the source directory. Defaults to the current directory")
     subparser.add_argument(
         '-i', '--ignore-dependencies', action='store_true', dest='ignore_deps',
         help="Do not try to install dependencies of requested packages.")
@@ -62,6 +66,10 @@ def diy(self, args):
     if not args.spec:
         tty.die("spack diy requires a package spec argument.")
 
+    if args.jobs is not None:
+        if args.jobs <= 0:
+            tty.die("The -j option must be a positive integer!")
+
     specs = spack.cmd.parse_specs(args.spec)
     if len(specs) > 1:
         tty.die("spack diy only takes one spec.")
@@ -91,13 +99,19 @@ def diy(self, args):
         tty.msg("Uninstall or try adding a version suffix for this DIY build.")
         sys.exit(1)
 
+    source_path = args.source_path
+    if source_path is None:
+        source_path = os.getcwd()
+    source_path = os.path.abspath(source_path)
+
     # Forces the build to run out of the current directory.
-    package.stage = DIYStage(os.getcwd())
+    package.stage = DIYStage(source_path)
 
     # TODO: make this an argument, not a global.
     spack.do_checksum = False
 
     package.do_install(
+        make_jobs=args.jobs,
         keep_prefix=args.keep_prefix,
         install_deps=not args.ignore_deps,
         verbose=not args.quiet,

lib/spack/spack/cmd/install.py

@@ -54,9 +54,7 @@ def setup_parser(subparser):
 Alternatively one can decide to install only the package or only
 the dependencies."""
     )
-    subparser.add_argument(
-        '-j', '--jobs', action='store', type=int,
-        help="Explicitly set number of make jobs.  Default is #cpus.")
+    arguments.add_common_arguments(subparser, ['jobs'])
     subparser.add_argument(
         '--keep-prefix', action='store_true', dest='keep_prefix',
         help="Don't remove the install prefix if installation fails.")