feat(adex-cli): introduce unix-mode

mm2src/adex_cli/src/adex_config.rs

@@ -22,6 +22,7 @@ const VOLUME_PRECISION_MIN: usize = 2;
 const VOLUME_PRECISION_MAX: usize = 5;
 const VOLUME_PRECISION: SmartFractPrecision = (VOLUME_PRECISION_MIN, VOLUME_PRECISION_MAX);
 const PRICE_PRECISION: SmartFractPrecision = (PRICE_PRECISION_MIN, PRICE_PRECISION_MAX);
+const CFG_FILE_PERM_MODE: u32 = 0o660;
 
 pub(super) fn get_config() {
     let Ok(adex_cfg) = AdexConfigImpl::from_config_path() else { return; };
@@ -151,7 +152,7 @@ impl AdexConfigImpl {
         let adex_path_str = cfg_path
             .to_str()
             .ok_or_else(|| error_anyhow!("Failed to get cfg_path as str"))?;
-        rewrite_json_file(self, adex_path_str)
+        rewrite_json_file(self, adex_path_str, Some(CFG_FILE_PERM_MODE))
     }
 
     fn set_rpc_password(&mut self, rpc_password: String) { self.rpc_password.replace(rpc_password); }

mm2src/adex_cli/src/helpers.rs

@@ -4,11 +4,12 @@ use serde::{Deserialize, Serialize};
 use std::fs;
 use std::io::Write;
 use std::ops::Deref;
+#[cfg(unix)] use std::os::unix::fs::PermissionsExt;
 use std::path::Path;
 
 use crate::error_anyhow;
 
-pub(crate) fn rewrite_data_file<T>(data: T, file: &str) -> Result<()>
+pub(crate) fn rewrite_data_file<T>(data: T, file: &str, _unix_mode: Option<u32>) -> Result<()>
 where
     T: Deref<Target = [u8]>,
 {
@@ -22,15 +23,23 @@ where
     writer
         .write(&data)
         .map_err(|error| error_anyhow!("Failed to write data into {file}: {error}"))?;
+
+    #[cfg(unix)]
+    if let Some(unix_mode) = _unix_mode {
+        let mut perms = fs::metadata(file)?.permissions();
+        perms.set_mode(unix_mode);
+        fs::set_permissions(file, perms)?;
+    }
+
     Ok(())
 }
 
-pub(crate) fn rewrite_json_file<T>(value: &T, file: &str) -> Result<()>
+pub(crate) fn rewrite_json_file<T>(value: &T, file: &str, unix_mode: Option<u32>) -> Result<()>
 where
     T: Serialize,
 {
     let data = serde_json::to_vec_pretty(value).map_err(|error| error_anyhow!("Failed to serialize data {error}"))?;
-    rewrite_data_file(data, file)
+    rewrite_data_file(data, file, unix_mode)
 }
 
 pub(crate) fn read_json_file<T>(file: &Path) -> Result<T>

mm2src/adex_cli/src/scenarios/init_coins.rs

@@ -13,7 +13,7 @@ pub(crate) async fn init_coins(coins_file: &str) -> Result<()> {
         .await
         .map_err(|error| error_anyhow!("Failed to get coin set from: {FULL_COIN_SET_ADDRESS}, error: {error}"))?;
 
-    rewrite_data_file(coins_data, coins_file)?;
+    rewrite_data_file(coins_data, coins_file, None)?;
     info!("Got coins data, written into: {coins_file}");
     Ok(())
 }

mm2src/adex_cli/src/scenarios/init_mm2_cfg.rs

@@ -24,7 +24,7 @@ pub(crate) fn init_mm2_cfg(cfg_file: &str) -> Result<()> {
     let mut mm2_cfg = Mm2Cfg::new();
     info!("Start collecting mm2_cfg into: {cfg_file}");
     mm2_cfg.inquire()?;
-    helpers::rewrite_json_file(&mm2_cfg, cfg_file)?;
+    helpers::rewrite_json_file(&mm2_cfg, cfg_file, None)?;
     info!("mm2_cfg has been writen into: {cfg_file}");
 
     Ok(())