| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package project |
| |
| import ( |
| "bufio" |
| "fmt" |
| "os" |
| "strings" |
| |
| "mynewt.apache.org/newt/newt/interfaces" |
| "mynewt.apache.org/newt/newt/repo" |
| "mynewt.apache.org/newt/util" |
| ) |
| |
| const PROJECT_STATE_FILE = "project.state" |
| |
| type ProjectState struct { |
| installedRepos map[string]*repo.Version |
| } |
| |
| func (ps *ProjectState) GetInstalledVersion(rname string) *repo.Version { |
| v, _ := ps.installedRepos[rname] |
| return v |
| } |
| |
| func (ps *ProjectState) Replace(rname string, rvers *repo.Version) { |
| ps.installedRepos[rname] = rvers |
| } |
| |
| func (ps *ProjectState) StateFile() string { |
| return interfaces.GetProject().Path() + "/" + PROJECT_STATE_FILE |
| } |
| |
| func (ps *ProjectState) Save() error { |
| file, err := os.Create(ps.StateFile()) |
| if err != nil { |
| return util.NewNewtError(err.Error()) |
| } |
| defer file.Close() |
| |
| for k, v := range ps.installedRepos { |
| str := fmt.Sprintf("%s,%d.%d.%d\n", k, v.Major(), v.Minor(), v.Revision()) |
| file.WriteString(str) |
| } |
| |
| return nil |
| } |
| |
| func (ps *ProjectState) Init() error { |
| ps.installedRepos = map[string]*repo.Version{} |
| |
| path := ps.StateFile() |
| |
| // Read project state file. If doesn't exist, it will be empty until somebody |
| // installs a repo |
| if util.NodeNotExist(path) { |
| return nil |
| } |
| |
| file, err := os.Open(path) |
| if err != nil { |
| return err |
| } |
| defer file.Close() |
| |
| scanner := bufio.NewScanner(file) |
| for scanner.Scan() { |
| line := strings.Split(scanner.Text(), ",") |
| if len(line) != 2 { |
| return util.NewNewtError(fmt.Sprintf( |
| "Invalid format for line in project.state file: %s\n", line)) |
| } |
| |
| repoName := line[0] |
| repoVers, err := repo.LoadVersion(line[1]) |
| if err != nil { |
| return err |
| } |
| |
| ps.installedRepos[repoName] = repoVers |
| } |
| return nil |
| } |
| |
| func LoadProjectState() (*ProjectState, error) { |
| ps := &ProjectState{} |
| if err := ps.Init(); err != nil { |
| return nil, err |
| } |
| return ps, nil |
| } |