def env_update(args):
manifest_file = ev.manifest_file(args.env)
backup_file = manifest_file + ".bkp"
needs_update = not ev.is_latest_format(manifest_file)
if not needs_update:
tty.msg('No update needed for the environment "{0}"'.format(args.env))
return
proceed = True
if not args.yes_to_all:
msg = ('The environment "{0}" is going to be updated to the latest '
'schema format.\nIf the environment is updated, versions of '
'Spack that are older than this version may not be able to '
'read it. Spack stores backups of the updated environment '
'which can be retrieved with "spack env revert"')
tty.msg(msg.format(args.env))
proceed = tty.get_yes_or_no('Do you want to proceed?', default=False)
if not proceed:
tty.die('Operation aborted.')
ev.update_yaml(manifest_file, backup_file=backup_file)
msg = 'Environment "{0}" has been updated [backup={1}]'
tty.msg(msg.format(args.env, backup_file))
def env_revert(args):
manifest_file = ev.manifest_file(args.env)
backup_file = manifest_file + ".bkp"
# Check that both the spack.yaml and the backup exist, the inform user
# on what is going to happen and ask for confirmation
if not os.path.exists(manifest_file):
msg = 'cannot fine the manifest file of the environment [file={0}]'
tty.die(msg.format(manifest_file))
if not os.path.exists(backup_file):
msg = 'cannot find the old manifest file to be restored [file={0}]'
tty.die(msg.format(backup_file))
proceed = True
if not args.yes_to_all:
msg = ('Spack is going to overwrite the current manifest file'
' with a backup copy [manifest={0}, backup={1}]')
tty.msg(msg.format(manifest_file, backup_file))
proceed = tty.get_yes_or_no('Do you want to proceed?', default=False)
if not proceed:
tty.die('Operation aborted.')
shutil.copy(backup_file, manifest_file)
os.remove(backup_file)
msg = 'Environment "{0}" reverted to old state'
tty.msg(msg.format(manifest_file))
def config_edit(args):
"""Edit the configuration file for a specific scope and config section.
With no arguments and an active environment, edit the spack.yaml for
the active environment.
"""
spack_env = os.environ.get(ev.spack_env_var)
if spack_env and not args.scope:
# Don't use the scope object for envs, as `config edit` can be called
# for a malformed environment. Use SPACK_ENV to find spack.yaml.
config_file = ev.manifest_file(spack_env)
else:
# If we aren't editing a spack.yaml file, get config path from scope.
scope, section = _get_scope_and_section(args)
if not scope and not section:
tty.die('`spack config edit` requires a section argument '
'or an active environment.')
config_file = spack.config.config.get_config_filename(scope, section)
if args.print_file:
print(config_file)
else:
editor(config_file)
