Make CustomPath, CustomConf and AppWorkPath configurable at build (#6631)

modules/setting/setting.go

@@ -391,12 +391,12 @@ func getAppPath() (string, error) {
 }
 
 func getWorkPath(appPath string) string {
-	workPath := ""
-	giteaWorkPath := os.Getenv("GITEA_WORK_DIR")
+	workPath := AppWorkPath
 
-	if len(giteaWorkPath) > 0 {
+	if giteaWorkPath, ok := os.LookupEnv("GITEA_WORK_DIR"); ok {
 		workPath = giteaWorkPath
-	} else {
+	}
+	if len(workPath) == 0 {
 		i := strings.LastIndex(appPath, "/")
 		if i == -1 {
 			workPath = appPath
@@ -475,27 +475,40 @@ func CheckLFSVersion() {
 	}
 }
 
-// NewContext initializes configuration context.
-// NOTE: do not print any log except error.
-func NewContext() {
-	Cfg = ini.Empty()
-
-	CustomPath = os.Getenv("GITEA_CUSTOM")
+// SetCustomPathAndConf will set CustomPath and CustomConf with reference to the
+// GITEA_CUSTOM environment variable and with provided overrides before stepping
+// back to the default
+func SetCustomPathAndConf(providedCustom, providedConf string) {
+	if giteaCustom, ok := os.LookupEnv("GITEA_CUSTOM"); ok {
+		CustomPath = giteaCustom
+	}
+	if len(providedCustom) != 0 {
+		CustomPath = providedCustom
+	}
 	if len(CustomPath) == 0 {
 		CustomPath = path.Join(AppWorkPath, "custom")
 	} else if !filepath.IsAbs(CustomPath) {
 		CustomPath = path.Join(AppWorkPath, CustomPath)
 	}
 
-	if len(CustomPID) > 0 {
-		createPIDFile(CustomPID)
+	if len(providedConf) != 0 {
+		CustomConf = providedConf
 	}
-
 	if len(CustomConf) == 0 {
 		CustomConf = path.Join(CustomPath, "conf/app.ini")
 	} else if !filepath.IsAbs(CustomConf) {
 		CustomConf = path.Join(CustomPath, CustomConf)
 	}
+}
+
+// NewContext initializes configuration context.
+// NOTE: do not print any log except error.
+func NewContext() {
+	Cfg = ini.Empty()
+
+	if len(CustomPID) > 0 {
+		createPIDFile(CustomPID)
+	}
 
 	if com.IsFile(CustomConf) {
 		if err := Cfg.Append(CustomConf); err != nil {