add info log for copy/move/delete cmds

src/msg/cli.rs

@@ -9,7 +9,7 @@ use crate::{
     input,
     mbox::cli::mbox_target_arg,
     msg::model::{Attachments, Msg, Msgs, ReadableMsg},
-    output::utils::print,
+    output::utils::{print, Info},
     smtp,
 };
 
@@ -437,6 +437,14 @@ pub fn msg_matches(matches: &ArgMatches) -> Result<()> {
         flags.push(Flag::Seen);
         imap_conn.append_msg(target, &msg.raw, &flags)?;
         imap_conn.logout();
+
+        print(
+            &output_fmt,
+            Info(format!(
+                "Message {} successfully copied to folder `{}`",
+                &uid, &target
+            )),
+        )?;
         return Ok(());
     }
 
@@ -450,6 +458,14 @@ pub fn msg_matches(matches: &ArgMatches) -> Result<()> {
         imap_conn.append_msg(target, &msg.raw, msg.flags.deref())?;
         imap_conn.add_flags(mbox, uid, "\\Seen \\Deleted")?;
         imap_conn.logout();
+
+        print(
+            &output_fmt,
+            Info(format!(
+                "Message {} successfully moved to folder `{}`",
+                &uid, &target
+            )),
+        )?;
         return Ok(());
     }
 
@@ -458,6 +474,11 @@ pub fn msg_matches(matches: &ArgMatches) -> Result<()> {
         let uid = matches.value_of("uid").unwrap();
         imap_conn.add_flags(mbox, uid, "\\Seen \\Deleted")?;
         imap_conn.logout();
+
+        print(
+            &output_fmt,
+            Info(format!("Message {} successfully deleted", &uid)),
+        )?;
         return Ok(());
     }
 

src/output/utils.rs

@@ -1,25 +1,51 @@
 use error_chain::error_chain;
-use serde::Serialize;
-use std::{fmt::Display, process::Command};
+use serde::{
+    ser::{self, SerializeStruct},
+    Serialize,
+};
+use std::{fmt, process::Command, result};
 
-error_chain! {}
+error_chain! {
+    foreign_links {
+        Utf8(std::string::FromUtf8Error);
+        Io(std::io::Error);
+    }
+}
+
+pub struct Info(pub String);
+
+impl fmt::Display for Info {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{}", self.0)
+    }
+}
+
+impl ser::Serialize for Info {
+    fn serialize<S>(&self, serializer: S) -> result::Result<S::Ok, S::Error>
+    where
+        S: ser::Serializer,
+    {
+        let mut state = serializer.serialize_struct("Info", 1)?;
+        state.serialize_field("info", &self.0)?;
+        state.end()
+    }
+}
 
 pub fn run_cmd(cmd: &str) -> Result<String> {
     let output = if cfg!(target_os = "windows") {
         Command::new("cmd").args(&["/C", cmd]).output()
     } else {
         Command::new("sh").arg("-c").arg(cmd).output()
-    }
-    .chain_err(|| "Run command failed")?;
+    }?;
 
-    Ok(String::from_utf8(output.stdout).chain_err(|| "Invalid utf8 output")?)
+    Ok(String::from_utf8(output.stdout)?)
 }
 
-pub fn print<T: Display + Serialize>(output_type: &str, item: T) -> Result<()> {
+pub fn print<T: fmt::Display + Serialize>(output_type: &str, item: T) -> Result<()> {
     match output_type {
         "json" => print!(
             "{}",
-            serde_json::to_string(&item).chain_err(|| "Invalid JSON string")?
+            serde_json::to_string(&item).chain_err(|| "Could not decode JSON")?
         ),
         "text" | _ => println!("{}", item.to_string()),
     }