use cached git config

pkg/commands/git_config/cached_git_config.go

@@ -0,0 +1,59 @@
+package git_config
+
+import (
+	"strings"
+
+	"github.com/sirupsen/logrus"
+)
+
+type IGitConfig interface {
+	Get(string) string
+	GetBool(string) bool
+}
+
+type CachedGitConfig struct {
+	cache  map[string]string
+	getKey func(string) (string, error)
+	log    *logrus.Entry
+}
+
+func NewStdCachedGitConfig(log *logrus.Entry) *CachedGitConfig {
+	return NewCachedGitConfig(getGitConfigValue, log)
+}
+
+func NewCachedGitConfig(getKey func(string) (string, error), log *logrus.Entry) *CachedGitConfig {
+	return &CachedGitConfig{
+		cache:  make(map[string]string),
+		getKey: getKey,
+		log:    log,
+	}
+}
+
+func (self *CachedGitConfig) Get(key string) string {
+	if value, ok := self.cache[key]; ok {
+		self.log.Debugf("using cache for key " + key)
+		return value
+	}
+
+	value := self.getAux(key)
+	self.cache[key] = value
+	return value
+}
+
+func (self *CachedGitConfig) getAux(key string) string {
+	value, err := self.getKey(key)
+	if err != nil {
+		self.log.Debugf("Error getting git config value for key: " + key + ". Error: " + err.Error())
+		return ""
+	}
+	return strings.TrimSpace(value)
+}
+
+func (self *CachedGitConfig) GetBool(key string) bool {
+	return isTruthy(self.Get(key))
+}
+
+func isTruthy(value string) bool {
+	lcValue := strings.ToLower(value)
+	return lcValue == "true" || lcValue == "1" || lcValue == "yes" || lcValue == "on"
+}