Bugfix: from_list_url(). (#5780)

This fixes a bug in from_list_url where it was referring to a method
which no longer exists. This also adds a test for the from_list_url
function.

lib/spack/spack/fetch_strategy.py

@@ -960,7 +960,7 @@ def from_list_url(pkg):
        the specified package's version."""
     if pkg.list_url:
         try:
-            versions = pkg.fetch_remote_package_versions()
+            versions = pkg.fetch_remote_versions()
             try:
                 url_from_list = versions[pkg.version]
                 digest = None

lib/spack/spack/test/url_fetch.py

@@ -28,6 +28,7 @@
 from llnl.util.filesystem import working_dir, is_exe
 
 import spack
+from spack.fetch_strategy import from_list_url, URLFetchStrategy
 from spack.spec import Spec
 from spack.version import ver
 import spack.util.crypto as crypto
@@ -82,6 +83,20 @@ def test_fetch(
             assert 'echo Building...' in contents
 
 
+def test_from_list_url(builtin_mock, config):
+    pkg = spack.repo.get('url-list-test', new=True)
+    for ver_str in ['0.0.0', '1.0.0', '2.0.0',
+                    '3.0', '4.5', '2.0.0b2',
+                    '3.0a1', '4.5-rc5']:
+        spec = Spec('url-list-test@%s' % ver_str)
+        spec.concretize()
+        pkg.spec = spec
+        fetch_strategy = from_list_url(pkg)
+        assert isinstance(fetch_strategy, URLFetchStrategy)
+        assert (os.path.basename(fetch_strategy.url) ==
+                ('foo-' + ver_str + '.tar.gz'))
+
+
 def test_hash_detection(checksum_type):
     algo = crypto.hashes[checksum_type]()
     h = 'f' * (algo.digest_size * 2)  # hex -> bytes

var/spack/repos/builtin.mock/packages/url-list-test/package.py

@@ -0,0 +1,49 @@
+##############################################################################
+# Copyright (c) 2013-2017, Lawrence Livermore National Security, LLC.
+# Produced at the Lawrence Livermore National Laboratory.
+#
+# This file is part of Spack.
+# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
+# LLNL-CODE-647188
+#
+# For details, see https://github.com/llnl/spack
+# Please also see the NOTICE and LICENSE files for our notice and the LGPL.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License (as
+# published by the Free Software Foundation) version 2.1, February 1999.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
+# conditions of the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##############################################################################
+from spack import *
+
+import os
+import spack
+
+
+class UrlListTest(Package):
+    """Mock package with url_list."""
+    homepage = "http://www.url-list-example.com"
+
+    web_data_path = os.path.join(spack.test_path, 'data', 'web')
+    url = 'file://' + web_data_path + '/foo-0.0.0.tar.gz'
+    list_url = 'file://' + web_data_path + '/index.html'
+    list_depth = 3
+
+    version('0.0.0')
+    version('1.0.0')
+    version('3.0')
+    version('4.5')
+    version('2.0.0b2')
+    version('3.0a1')
+    version('4.5-rc5')
+
+    def install(self, spec, prefix):
+        pass