/
config.go
240 lines (174 loc) · 4.67 KB
/
config.go
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package cmd
import (
"encoding/base64"
"fmt"
"io/ioutil"
"os"
"regexp"
"sort"
"strings"
"github.com/deis/deis/pkg/prettyprint"
"github.com/deis/deis/client/controller/api"
"github.com/deis/deis/client/controller/models/config"
)
// ConfigList lists an app's config.
func ConfigList(appID string, oneLine bool) error {
c, appID, err := load(appID)
if err != nil {
return err
}
config, err := config.List(c, appID)
if err != nil {
return err
}
var keys []string
for k := range config.Values {
keys = append(keys, k)
}
sort.Strings(keys)
if oneLine {
for _, key := range keys {
fmt.Printf("%s=%s ", key, config.Values[key])
}
fmt.Println()
} else {
fmt.Printf("=== %s Config\n", appID)
configMap := make(map[string]string)
// config.Values is type interface, so it needs to be converted to a string
for _, key := range keys {
configMap[key] = config.Values[key].(string)
}
fmt.Print(prettyprint.PrettyTabs(configMap, 6))
}
return nil
}
// ConfigSet sets an app's config variables.
func ConfigSet(appID string, configVars []string) error {
c, appID, err := load(appID)
if err != nil {
return err
}
configMap := parseConfig(configVars)
value, ok := configMap["SSH_KEY"]
if ok {
sshKey := value.(string)
if _, err := os.Stat(value.(string)); err == nil {
contents, err := ioutil.ReadFile(value.(string))
if err != nil {
return err
}
sshKey = string(contents)
}
sshRegex := regexp.MustCompile("^-.+ .SA PRIVATE KEY-*")
if !sshRegex.MatchString(sshKey) {
return fmt.Errorf("Could not parse SSH private key:\n %s", sshKey)
}
configMap["SSH_KEY"] = base64.StdEncoding.EncodeToString([]byte(sshKey))
}
fmt.Print("Creating config... ")
quit := progress()
configObj := api.Config{Values: configMap}
configObj, err = config.Set(c, appID, configObj)
quit <- true
<-quit
if err != nil {
return err
}
if release, ok := configObj.Values["DEIS_RELEASE"]; ok {
fmt.Printf("done, %s\n\n", release)
} else {
fmt.Print("done\n\n")
}
return ConfigList(appID, false)
}
// ConfigUnset removes a config variable from an app.
func ConfigUnset(appID string, configVars []string) error {
c, appID, err := load(appID)
if err != nil {
return err
}
fmt.Print("Removing config... ")
quit := progress()
configObj := api.Config{}
valuesMap := make(map[string]interface{})
for _, configVar := range configVars {
valuesMap[configVar] = nil
}
configObj.Values = valuesMap
_, err = config.Set(c, appID, configObj)
quit <- true
<-quit
if err != nil {
return err
}
fmt.Print("done\n\n")
return ConfigList(appID, false)
}
// ConfigPull pulls an app's config to a file.
func ConfigPull(appID string, interactive bool, overwrite bool) error {
filename := ".env"
if !overwrite {
if _, err := os.Stat(filename); err == nil {
return fmt.Errorf("%s already exists, pass -o to overwrite", filename)
}
}
c, appID, err := load(appID)
if err != nil {
return err
}
configVars, err := config.List(c, appID)
if interactive {
contents, err := ioutil.ReadFile(filename)
if err != nil {
return err
}
localConfigVars := strings.Split(string(contents), "\n")
configMap := parseConfig(localConfigVars[:len(localConfigVars)-1])
for key, value := range configVars.Values {
localValue, ok := configMap[key]
if ok {
if value != localValue {
var confirm string
fmt.Printf("%s: overwrite %s with %s? (y/N) ", key, localValue, value)
fmt.Scanln(&confirm)
if strings.ToLower(confirm) == "y" {
configMap[key] = value
}
}
} else {
configMap[key] = value
}
}
return ioutil.WriteFile(filename, []byte(formatConfig(configMap)), 0755)
}
return ioutil.WriteFile(filename, []byte(formatConfig(configVars.Values)), 0755)
}
// ConfigPush pushes an app's config from a file.
func ConfigPush(appID string, fileName string) error {
contents, err := ioutil.ReadFile(fileName)
if err != nil {
return err
}
config := strings.Split(string(contents), "\n")
return ConfigSet(appID, config[:len(config)-1])
}
func parseConfig(configVars []string) map[string]interface{} {
configMap := make(map[string]interface{})
regex := regexp.MustCompile("^([A-z_]+[A-z0-9_]*)=(.+)$")
for _, config := range configVars {
if regex.MatchString(config) {
captures := regex.FindStringSubmatch(config)
configMap[captures[1]] = captures[2]
} else {
fmt.Printf("'%s' does not match the pattern 'key=var', ex: MODE=test\n", config)
}
}
return configMap
}
func formatConfig(configVars map[string]interface{}) string {
var formattedConfig string
for key, value := range configVars {
formattedConfig += fmt.Sprintf("%s=%s\n", key, value)
}
return formattedConfig
}