github.com/meulengracht/snapd@v0.0.0-20210719210640-8bde69bcc84e/overlord/ifacestate/ifacerepo/repo.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2016-2017 Canonical Ltd
     5   *
     6   * This program is free software: you can redistribute it and/or modify
     7   * it under the terms of the GNU General Public License version 3 as
     8   * published by the Free Software Foundation.
     9   *
    10   * This program is distributed in the hope that it will be useful,
    11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13   * GNU General Public License for more details.
    14   *
    15   * You should have received a copy of the GNU General Public License
    16   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17   *
    18   */
    19  
    20  package ifacerepo
    21  
    22  import (
    23  	"github.com/snapcore/snapd/interfaces"
    24  	"github.com/snapcore/snapd/overlord/state"
    25  )
    26  
    27  type interfacesRepoKey struct{}
    28  
    29  // Replace replaces the interface repository used by the managers.
    30  func Replace(st *state.State, repo *interfaces.Repository) {
    31  	st.Cache(interfacesRepoKey{}, repo)
    32  }
    33  
    34  // Get returns the interface repository used by the managers.
    35  func Get(st *state.State) *interfaces.Repository {
    36  	repo := st.Cached(interfacesRepoKey{})
    37  	if repo == nil {
    38  		panic("internal error: cannot find cached interfaces repository, interface manager not initialized?")
    39  	}
    40  	return repo.(*interfaces.Repository)
    41  }