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package git_config
import (
"os/exec"
"strings"
"sync"
"github.com/sirupsen/logrus"
)
type IGitConfig interface {
// this is for when you want to pass 'mykey' (it calls `git config --get --null mykey` under the hood)
Get(string) string
// this is for when you want to pass '--local --get-regexp mykey'
GetGeneral(string) string
// this is for when you want to pass 'mykey' and check if the result is truthy
GetBool(string) bool
DropCache()
}
type CachedGitConfig struct {
cache map[string]string
runGitConfigCmd func(*exec.Cmd) (string, error)
log *logrus.Entry
mutex sync.Mutex
}
func NewStdCachedGitConfig(log *logrus.Entry) *CachedGitConfig {
return NewCachedGitConfig(runGitConfigCmd, log)
}
func NewCachedGitConfig(runGitConfigCmd func(*exec.Cmd) (string, error), log *logrus.Entry) *CachedGitConfig {
return &CachedGitConfig{
cache: make(map[string]string),
runGitConfigCmd: runGitConfigCmd,
log: log,
mutex: sync.Mutex{},
}
}
func (self *CachedGitConfig) Get(key string) string {
self.mutex.Lock()
defer self.mutex.Unlock()
if value, ok := self.cache[key]; ok {
self.log.Debug("using cache for key " + key)
return value
}
value := self.getAux(key)
self.cache[key] = value
return value
}
func (self *CachedGitConfig) GetGeneral(args string) string {
self.mutex.Lock()
defer self.mutex.Unlock()
if value, ok := self.cache[args]; ok {
self.log.Debug("using cache for args " + args)
return value
}
value := self.getGeneralAux(args)
self.cache[args] = value
return value
}
func (self *CachedGitConfig) getGeneralAux(args string) string {
cmd := getGitConfigGeneralCmd(args)
value, err := self.runGitConfigCmd(cmd)
if err != nil {
self.log.Debugf("Error getting git config value for args: %s. Error: %v", args, err.Error())
return ""
}
return strings.TrimSpace(value)
}
func (self *CachedGitConfig) getAux(key string) string {
cmd := getGitConfigCmd(key)
value, err := self.runGitConfigCmd(cmd)
if err != nil {
self.log.Debugf("Error getting git config value for key: %s. Error: %v", key, 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"
}
func (self *CachedGitConfig) DropCache() {
self.mutex.Lock()
defer self.mutex.Unlock()
self.cache = make(map[string]string)
}
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