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/*
* Copyright (C) 2017-2018 "IoT.bzh"
* Author Sebastien Douheret <sebastien@iot.bzh>
*
* 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 (
"fmt"
"io"
"os"
"os/user"
"path"
"path/filepath"
common "gerrit.automotivelinux.org/gerrit/src/xds/xds-common.git"
"gerrit.automotivelinux.org/gerrit/src/xds/xds-server.git/lib/xsapiv1"
"github.com/Sirupsen/logrus"
"github.com/codegangsta/cli"
)
// Config parameters (json format) of /config command
type Config struct {
// Public APIConfig fields
xsapiv1.APIConfig
// Private (un-exported fields in REST GET /config route)
Options Options `json:"-"`
FileConf FileConfig `json:"-"`
Log *logrus.Logger `json:"-"`
LogVerboseOut io.Writer `json:"-"`
}
// Options set at the command line
type Options struct {
ConfigFile string
LogLevel string
LogFile string
NoFolderConfig bool
}
// Config default values
const (
DefaultAPIVersion = "1"
DefaultPort = "8000"
DefaultShareDir = "projects"
DefaultSTHomeDir = "syncthing-config"
DefaultSdkScriptsDir = "${EXEPATH}/sdks"
DefaultXdsUtilsScriptsDir = "${EXEPATH}/xds-utils"
DefaultSdkDbUpdate = "startup"
DefaultXdsSrvUpdateTime = "24h"
)
// Init loads the configuration on start-up
func Init(cliCtx *cli.Context, log *logrus.Logger) (*Config, error) {
var err error
dfltShareDir := path.Join(ConfigRootDir(), DefaultShareDir)
dfltSTHomeDir := path.Join(ConfigRootDir(), DefaultSTHomeDir)
if resDir, err := common.ResolveEnvVar(dfltShareDir); err == nil {
dfltShareDir = resDir
}
if resDir, err := common.ResolveEnvVar(dfltSTHomeDir); err == nil {
dfltSTHomeDir = resDir
}
// Retrieve Server ID (or create one the first time)
uuid, err := ServerIDGet()
if err != nil {
return nil, err
}
// Define default configuration
c := Config{
APIConfig: xsapiv1.APIConfig{
ServerUID: uuid,
Version: cliCtx.App.Metadata["version"].(string),
APIVersion: DefaultAPIVersion,
VersionGitTag: cliCtx.App.Metadata["git-tag"].(string),
Builder: xsapiv1.BuilderConfig{},
SupportedSharing: map[string]bool{xsapiv1.TypePathMap: true},
},
Options: Options{
ConfigFile: cliCtx.GlobalString("config"),
LogLevel: cliCtx.GlobalString("log"),
LogFile: cliCtx.GlobalString("logfile"),
NoFolderConfig: cliCtx.GlobalBool("no-folderconfig"),
},
FileConf: FileConfig{
WebAppDir: "www",
ShareRootDir: dfltShareDir,
SdkScriptsDir: DefaultSdkScriptsDir,
XdsUtilsScriptsDir: DefaultXdsUtilsScriptsDir,
SdkDbUpdate: DefaultSdkDbUpdate,
HTTPPort: DefaultPort,
SThgConf: &SyncThingConf{Home: dfltSTHomeDir},
LogsDir: "",
XdsSrvUpdateTime: DefaultXdsSrvUpdateTime,
},
Log: log,
}
c.Log.Infoln("Server UUID: ", uuid)
// config file settings overwrite default config
err = readGlobalConfig(&c, c.Options.ConfigFile)
if err != nil {
return nil, err
}
// Update location of shared dir if needed
if !common.Exists(c.FileConf.ShareRootDir) {
if err := os.MkdirAll(c.FileConf.ShareRootDir, 0770); err != nil {
return nil, fmt.Errorf("No valid shared directory found: %v", err)
}
}
c.Log.Infoln("Share root directory: ", c.FileConf.ShareRootDir)
// Where Logs are redirected:
// default 'stdout' (logfile option default value)
// else use file (or filepath) set by --logfile option
// that may be overwritten by LogsDir field of config file
logF := c.Options.LogFile
logD := c.FileConf.LogsDir
if logF != "stdout" {
if logD != "" {
lf := filepath.Base(logF)
if lf == "" || lf == "." {
lf = "xds-server.log"
}
logF = filepath.Join(logD, lf)
} else {
logD = filepath.Dir(logF)
}
}
if logD == "" || logD == "." {
logD = "/tmp/xds/logs"
}
c.Options.LogFile = logF
c.FileConf.LogsDir = logD
if c.FileConf.LogsDir != "" && !common.Exists(c.FileConf.LogsDir) {
if err := os.MkdirAll(c.FileConf.LogsDir, 0770); err != nil {
return nil, fmt.Errorf("Cannot create logs dir: %v", err)
}
}
c.Log.Infoln("Logs file: ", c.Options.LogFile)
c.Log.Infoln("Logs directory: ", c.FileConf.LogsDir)
return &c, nil
}
// ConfigRootDir return the root directory where xds server save all config files
func ConfigRootDir() string {
root := "$HOME"
if usr, err := user.Current(); err == nil {
root = usr.HomeDir
}
// Default $HOME/.xds/server but may be changed by an env variable
if envVar, envDef := os.LookupEnv("XDS_SERVER_ROOT_CFG_DIR"); envDef {
root = envVar
}
return path.Join(root, "/.xds/server")
}
// WorkspaceRootDir return the path on server side where user xds-workspace dir is accessible
func WorkspaceRootDir() string {
// May be overloaded by an env variable
if envVar, envDef := os.LookupEnv("XDS_SERVER_WORKSPACE_DIR"); envDef {
return envVar
}
home := "${HOME}"
if usr, err := user.Current(); err == nil {
home = usr.HomeDir
}
// Default value $HOME/xds-workspace
return path.Join(home, "xds-workspace")
}
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