X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=lib%2Fxdsconfig%2Ffileconfig.go;h=8e77de7802f92687fe5fc318f44e48db6dd7fe47;hb=963931e04d44a5b40d38817163f52f56241a9f33;hp=d39cae032e46e6fc73b93e380c6766aad96fc02c;hpb=51da3506a296b7d5d4185b17364f188292136888;p=src%2Fxds%2Fxds-server.git diff --git a/lib/xdsconfig/fileconfig.go b/lib/xdsconfig/fileconfig.go index d39cae0..8e77de7 100644 --- a/lib/xdsconfig/fileconfig.go +++ b/lib/xdsconfig/fileconfig.go @@ -1,25 +1,55 @@ +/* + * Copyright (C) 2017 "IoT.bzh" + * Author Sebastien Douheret + * + * Licensed 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 xdsconfig import ( "encoding/json" - "fmt" "os" "os/user" "path" "path/filepath" - "regexp" "strings" - "github.com/iotbzh/xds-server/lib/common" + common "github.com/iotbzh/xds-common/golib" +) + +// ConfigDir Directory in user HOME directory where xds config will be saved +var ConfigDir = path.Join(".xds", "server") + +const ( + // GlobalConfigFilename Global config filename + GlobalConfigFilename = "server-config.json" + // ServerDataFilename Server data filename + ServerDataFilename = "server-data.xml" + // FoldersConfigFilename Folders config filename + FoldersConfigFilename = "server-config_folders.xml" ) +// SyncThingConf definition type SyncThingConf struct { - BinDir string `json:"binDir"` - Home string `json:"home"` - GuiAddress string `json:"gui-address"` - GuiAPIKey string `json:"gui-apikey"` + BinDir string `json:"binDir"` + Home string `json:"home"` + GuiAddress string `json:"gui-address"` + GuiAPIKey string `json:"gui-apikey"` + RescanIntervalS int `json:"rescanIntervalS"` } +// FileConfig is the JSON structure of xds-server config file (server-config.json) type FileConfig struct { WebAppDir string `json:"webAppDir"` ShareRootDir string `json:"shareRootDir"` @@ -29,30 +59,36 @@ type FileConfig struct { LogsDir string `json:"logsDir"` } -// getConfigFromFile reads configuration from a config file. +// readGlobalConfig reads configuration from a config file. // Order to determine which config file is used: // 1/ from command line option: "--config myConfig.json" -// 2/ $HOME/.xds/config.json file -// 3/ /config.json file -// 4/ /config.json file - -func updateConfigFromFile(c *Config, confFile string) error { +// 2/ $HOME/.xds/server/server-config.json file +// 3/ /etc/xds/server/server-config.json file +// 4/ /server-config.json file +func readGlobalConfig(c *Config, confFile string) error { searchIn := make([]string, 0, 3) if confFile != "" { searchIn = append(searchIn, confFile) } if usr, err := user.Current(); err == nil { - searchIn = append(searchIn, path.Join(usr.HomeDir, ".xds", "config.json")) - } - cwd, err := os.Getwd() - if err == nil { - searchIn = append(searchIn, path.Join(cwd, "config.json")) + searchIn = append(searchIn, path.Join(usr.HomeDir, ConfigDir, GlobalConfigFilename)) } - exePath, err := filepath.Abs(filepath.Dir(os.Args[0])) + + searchIn = append(searchIn, "/etc/xds/server/server-config.json") + + exePath := os.Args[0] + ee, _ := os.Executable() + exeAbsPath, err := filepath.Abs(ee) if err == nil { - searchIn = append(searchIn, path.Join(exePath, "config.json")) + exePath, err = filepath.EvalSymlinks(exeAbsPath) + if err == nil { + exePath = filepath.Dir(ee) + } else { + exePath = filepath.Dir(exeAbsPath) + } } + searchIn = append(searchIn, path.Join(exePath, "server-config.json")) var cFile *string for _, p := range searchIn { @@ -65,79 +101,84 @@ func updateConfigFromFile(c *Config, confFile string) error { // No config file found return nil } - - c.Log.Infof("Use config file: %s", *cFile) + c.Log.Infof("Use config file: %s", *cFile) // TODO move on viper package to support comments in JSON and also // bind with flags (command line options) // see https://github.com/spf13/viper#working-with-flags - fd, _ := os.Open(*cFile) defer fd.Close() fCfg := FileConfig{} if err := json.NewDecoder(fd).Decode(&fCfg); err != nil { return err } - c.FileConf = fCfg - // Support environment variables (IOW ${MY_ENV_VAR} syntax) in config.json - for _, field := range []*string{ + // Support environment variables (IOW ${MY_ENV_VAR} syntax) in server-config.json + vars := []*string{ &fCfg.WebAppDir, &fCfg.ShareRootDir, &fCfg.SdkRootDir, - &fCfg.LogsDir, - &fCfg.SThgConf.Home, - &fCfg.SThgConf.BinDir} { - - rep, err := resolveEnvVar(*field) - if err != nil { + &fCfg.LogsDir} + if fCfg.SThgConf != nil { + vars = append(vars, &fCfg.SThgConf.Home, &fCfg.SThgConf.BinDir) + } + for _, field := range vars { + var err error + if *field, err = common.ResolveEnvVar(*field); err != nil { return err } - *field = path.Clean(rep) } - // Config file settings overwrite default config - - if fCfg.WebAppDir != "" { - c.WebAppDir = strings.Trim(fCfg.WebAppDir, " ") + // Use config file settings else use default config + if fCfg.WebAppDir == "" { + fCfg.WebAppDir = c.FileConf.WebAppDir } - // Is it a full path ? - if !strings.HasPrefix(c.WebAppDir, "/") && exePath != "" { + if fCfg.ShareRootDir == "" { + fCfg.ShareRootDir = c.FileConf.ShareRootDir + } + if fCfg.SdkRootDir == "" { + fCfg.SdkRootDir = c.FileConf.SdkRootDir + } + if fCfg.HTTPPort == "" { + fCfg.HTTPPort = c.FileConf.HTTPPort + } + if fCfg.LogsDir == "" { + fCfg.LogsDir = c.FileConf.LogsDir + } + + // Resolve webapp dir (support relative or full path) + fCfg.WebAppDir = strings.Trim(fCfg.WebAppDir, " ") + if !strings.HasPrefix(fCfg.WebAppDir, "/") && exePath != "" { + cwd, _ := os.Getwd() + // Check first from current directory - for _, rootD := range []string{cwd, exePath} { - ff := path.Join(rootD, c.WebAppDir, "index.html") + for _, rootD := range []string{exePath, cwd} { + ff := path.Join(rootD, fCfg.WebAppDir, "index.html") if common.Exists(ff) { - c.WebAppDir = path.Join(rootD, c.WebAppDir) + fCfg.WebAppDir = path.Join(rootD, fCfg.WebAppDir) break } } } - if fCfg.ShareRootDir != "" { - c.ShareRootDir = fCfg.ShareRootDir - } - - if fCfg.HTTPPort != "" { - c.HTTPPort = fCfg.HTTPPort - } - + c.FileConf = fCfg return nil } -// resolveEnvVar Resolved environment variable regarding the syntax ${MYVAR} -func resolveEnvVar(s string) (string, error) { - re := regexp.MustCompile("\\${(.*)}") - vars := re.FindAllStringSubmatch(s, -1) - res := s - for _, v := range vars { - val := os.Getenv(v[1]) - if val == "" { - return res, fmt.Errorf("ERROR: %s env variable not defined", v[1]) - } - - rer := regexp.MustCompile("\\${" + v[1] + "}") - res = rer.ReplaceAllString(res, val) +func configFilenameGet(cfgFile string) (string, error) { + usr, err := user.Current() + if err != nil { + return "", err } + return path.Join(usr.HomeDir, ConfigDir, cfgFile), nil +} + +// FoldersConfigFilenameGet +func FoldersConfigFilenameGet() (string, error) { + return configFilenameGet(FoldersConfigFilename) +} - return res, nil +// ServerDataFilenameGet +func ServerDataFilenameGet() (string, error) { + return configFilenameGet(ServerDataFilename) }