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120 lines
3.3 KiB
Go
120 lines
3.3 KiB
Go
package config
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import (
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"fmt"
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"io"
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"os"
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"path/filepath"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/cli/config/configfile"
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"github.com/docker/docker/pkg/homedir"
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)
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const (
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// ConfigFileName is the name of config file
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ConfigFileName = "config.json"
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configFileDir = ".docker"
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oldConfigfile = ".dockercfg"
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)
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var (
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configDir = os.Getenv("DOCKER_CONFIG")
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)
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func init() {
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if configDir == "" {
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configDir = filepath.Join(homedir.Get(), configFileDir)
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}
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}
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// Dir returns the directory the configuration file is stored in
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func Dir() string {
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return configDir
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}
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// SetDir sets the directory the configuration file is stored in
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func SetDir(dir string) {
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configDir = dir
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}
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// NewConfigFile initializes an empty configuration file for the given filename 'fn'
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func NewConfigFile(fn string) *configfile.ConfigFile {
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return &configfile.ConfigFile{
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AuthConfigs: make(map[string]types.AuthConfig),
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HTTPHeaders: make(map[string]string),
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Filename: fn,
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}
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}
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// LegacyLoadFromReader is a convenience function that creates a ConfigFile object from
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// a non-nested reader
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func LegacyLoadFromReader(configData io.Reader) (*configfile.ConfigFile, error) {
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configFile := configfile.ConfigFile{
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AuthConfigs: make(map[string]types.AuthConfig),
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}
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err := configFile.LegacyLoadFromReader(configData)
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return &configFile, err
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}
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// LoadFromReader is a convenience function that creates a ConfigFile object from
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// a reader
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func LoadFromReader(configData io.Reader) (*configfile.ConfigFile, error) {
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configFile := configfile.ConfigFile{
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AuthConfigs: make(map[string]types.AuthConfig),
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}
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err := configFile.LoadFromReader(configData)
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return &configFile, err
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}
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// Load reads the configuration files in the given directory, and sets up
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// the auth config information and returns values.
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// FIXME: use the internal golang config parser
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func Load(configDir string) (*configfile.ConfigFile, error) {
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if configDir == "" {
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configDir = Dir()
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}
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configFile := configfile.ConfigFile{
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AuthConfigs: make(map[string]types.AuthConfig),
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Filename: filepath.Join(configDir, ConfigFileName),
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}
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// Try happy path first - latest config file
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if _, err := os.Stat(configFile.Filename); err == nil {
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file, err := os.Open(configFile.Filename)
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if err != nil {
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return &configFile, fmt.Errorf("%s - %v", configFile.Filename, err)
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}
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defer file.Close()
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err = configFile.LoadFromReader(file)
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if err != nil {
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err = fmt.Errorf("%s - %v", configFile.Filename, err)
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}
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return &configFile, err
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} else if !os.IsNotExist(err) {
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// if file is there but we can't stat it for any reason other
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// than it doesn't exist then stop
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return &configFile, fmt.Errorf("%s - %v", configFile.Filename, err)
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}
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// Can't find latest config file so check for the old one
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confFile := filepath.Join(homedir.Get(), oldConfigfile)
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if _, err := os.Stat(confFile); err != nil {
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return &configFile, nil //missing file is not an error
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}
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file, err := os.Open(confFile)
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if err != nil {
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return &configFile, fmt.Errorf("%s - %v", confFile, err)
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}
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defer file.Close()
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err = configFile.LegacyLoadFromReader(file)
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if err != nil {
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return &configFile, fmt.Errorf("%s - %v", confFile, err)
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}
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if configFile.HTTPHeaders == nil {
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configFile.HTTPHeaders = map[string]string{}
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}
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return &configFile, nil
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}
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