Merge remote-tracking branch 'upstream/develop' into develop

"Updating NERSC branch"

lib/spack/llnl/util/tty/__init__.py

@@ -64,12 +64,14 @@ def info(message, *args, **kwargs):
     format = kwargs.get('format', '*b')
     stream = kwargs.get('stream', sys.stdout)
     wrap   = kwargs.get('wrap', False)
+    break_long_words = kwargs.get('break_long_words', False)
 
     cprint("@%s{==>} %s" % (format, cescape(str(message))), stream=stream)
     for arg in args:
         if wrap:
             lines = textwrap.wrap(
-                str(arg), initial_indent=indent, subsequent_indent=indent)
+                str(arg), initial_indent=indent, subsequent_indent=indent,
+                break_long_words=break_long_words)
             for line in lines:
                 stream.write(line + '\n')
         else:

lib/spack/spack/database.py

@@ -311,7 +311,11 @@ def reindex(self, directory_layout):
                 for spec in directory_layout.all_specs():
                     # Create a spec for each known package and add it.
                     path = directory_layout.path_for_spec(spec)
-                    self._add(spec, path, directory_layout)
+                    old_info = old_data.get(spec.dag_hash())
+                    explicit = False
+                    if old_info is not None:
+                        explicit = old_info.explicit
+                    self._add(spec, path, directory_layout, explicit=explicit)
 
                 self._check_ref_counts()
 

lib/spack/spack/hooks/licensing.py

@@ -26,7 +26,7 @@
 
 import spack
 import llnl.util.tty as tty
-from llnl.util.filesystem import join_path
+from llnl.util.filesystem import join_path, mkdirp
 
 
 def pre_install(pkg):
@@ -154,6 +154,9 @@ def symlink_license(pkg):
     target = pkg.global_license_file
     for filename in pkg.license_files:
         link_name = join_path(pkg.prefix, filename)
+        license_dir = os.path.dirname(link_name)
+        if not os.path.exists(license_dir):
+            mkdirp(license_dir)
         if os.path.exists(target):
             os.symlink(target, link_name)
             tty.msg("Added local symlink %s to global license file" %

lib/spack/spack/package.py

@@ -397,14 +397,20 @@ def __init__(self, spec):
         if self.is_extension:
             spack.repo.get(self.extendee_spec)._check_extendable()
 
+    @property
+    def global_license_dir(self):
+        """Returns the directory where global license files for all
+           packages are stored."""
+        spack_root = ancestor(__file__, 4)
+        return join_path(spack_root, 'etc', 'spack', 'licenses')
+
     @property
     def global_license_file(self):
-        """Returns the path where a global license file should be stored."""
+        """Returns the path where a global license file for this
+           particular package should be stored."""
         if not self.license_files:
             return
-        spack_root = ancestor(__file__, 4)
-        global_license_dir = join_path(spack_root, 'etc', 'spack', 'licenses')
-        return join_path(global_license_dir, self.name,
+        return join_path(self.global_license_dir, self.name,
                          os.path.basename(self.license_files[0]))
 
     @property