add user assign config, -c -config

src/config_util.rs

@@ -195,8 +195,8 @@ pub fn get_string_value(json: &json::JsonValue, key: &str) -> Option<String> {
     }
 }
 
-pub fn get_config_json() -> Option<json::JsonValue> {
+pub fn get_config_json(custom_oss_backupd_config: Option<&str>) -> Option<json::JsonValue> {
-    let config_content = get_config_content()?;
+    let config_content = get_config_content(custom_oss_backupd_config)?;
     match json::parse(&config_content) {
         Err(e) => {
             print_message(MessageType::ERROR, &format!("Parse config json failed: {}", e));
@@ -206,7 +206,24 @@ pub fn get_config_json() -> Option<json::JsonValue> {
     }
 }
 
-pub fn get_config_content() -> Option<String> {
+pub fn get_config_content(custom_oss_backupd_config: Option<&str>) -> Option<String> {
+    if custom_oss_backupd_config.is_some() {
+        let custom_oss_backupd_config_unrwaped = custom_oss_backupd_config.unwrap();
+        let custom_oss_backupd_config_path = Path::new(custom_oss_backupd_config_unrwaped);
+        if custom_oss_backupd_config_path.exists() {
+            match fs::read_to_string(custom_oss_backupd_config_path) {
+                Err(e) => {
+                    print_message(MessageType::ERROR, &format!("Read config file {} error: {}", custom_oss_backupd_config_unrwaped, e));
+                    return None;
+                },
+                Ok(o) => return Some(o),
+            };
+        } else {
+            print_message(MessageType::ERROR, &format!("Custom config file not found: {}", custom_oss_backupd_config_unrwaped));
+            return None;
+        }
+    }
+    // is not assigned by -c or --conifg FILE
     let oss_backupd_config_path = Path::new(OSS_BACKUPD_CONFIG);
     if oss_backupd_config_path.exists() {
         match fs::read_to_string(oss_backupd_config_path) {

src/main.rs

@@ -13,7 +13,7 @@ use rust_util::{
     util_msg::*,
 };
 use oss_util::*;
-// use config_util::*;
+use config_util::*;
 // use pgp_util::OpenPGPTool;
 use opt::{
     Options,
@@ -44,7 +44,8 @@ fn main() -> XResult<()> {
     // let openpgp_client = OpenPGPTool::from_file("sample.gpg")?;
     // openpgp_client.encrypt_file("a", "b.asc", true)?;
 
-    // let config_json = get_config_json();
+    let config_json = get_config_json(None); // TODO
+    
     // let j = config_json.unwrap();
     // println!("{}", j);
     // let c = parse_config(&j);