diff options
| -rw-r--r-- | lib/spack/spack/environment.py | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/lib/spack/spack/environment.py b/lib/spack/spack/environment.py index 4a23c52622..f7a1310459 100644 --- a/lib/spack/spack/environment.py +++ b/lib/spack/spack/environment.py @@ -516,20 +516,23 @@ class ViewDescriptor(object): if spec.concrete: # Do not link unconcretized roots specs_for_view.append(spec.copy(deps=('link', 'run'))) - installed_specs_for_view = set(s for s in specs_for_view - if s in self and s.package.installed) + # regeneration queries the database quite a bit; this read + # transaction ensures that we don't repeatedly lock/unlock. + with spack.store.db.read_transaction(): + installed_specs_for_view = set( + s for s in specs_for_view if s in self and s.package.installed) - view = self.view() + view = self.view() - view.clean() - specs_in_view = set(view.get_all_specs()) - tty.msg("Updating view at {0}".format(self.root)) + view.clean() + specs_in_view = set(view.get_all_specs()) + tty.msg("Updating view at {0}".format(self.root)) - rm_specs = specs_in_view - installed_specs_for_view - view.remove_specs(*rm_specs, with_dependents=False) + rm_specs = specs_in_view - installed_specs_for_view + view.remove_specs(*rm_specs, with_dependents=False) - add_specs = installed_specs_for_view - specs_in_view - view.add_specs(*add_specs, with_dependencies=False) + add_specs = installed_specs_for_view - specs_in_view + view.add_specs(*add_specs, with_dependencies=False) class Environment(object): |