melib: add clear debug prints in email structs

melib/src/mailbox/email/mod.rs

@@ -61,7 +61,7 @@ pub struct MailboxAddress {
     address_spec: StrBuilder,
 }
 
-#[derive(Clone, Debug, Serialize, Deserialize)]
+#[derive(Clone, Serialize, Deserialize)]
 pub enum Address {
     Mailbox(MailboxAddress),
     Group(GroupAddress),
@@ -78,11 +78,11 @@ impl PartialEq for Address {
                 s.address_spec.display(&s.raw) == o.address_spec.display(&o.raw)
             }
             (Address::Group(s), Address::Group(o)) => {
-                s.display_name.display(&s.raw) == o.display_name.display(&o.raw)
-                    && s.mailbox_list
-                        .iter()
-                        .zip(o.mailbox_list.iter())
-                        .fold(true, |b, (s, o)| b && (s == o))
+                s.display_name.display(&s.raw) == o.display_name.display(&o.raw) && s
+                    .mailbox_list
+                    .iter()
+                    .zip(o.mailbox_list.iter())
+                    .fold(true, |b, (s, o)| b && (s == o))
             }
         }
     }
@@ -112,6 +112,12 @@ impl fmt::Display for Address {
     }
 }
 
+impl fmt::Debug for Address {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        fmt::Display::fmt(self, f)
+    }
+}
+
 /// Helper struct to return slices from a struct field on demand.
 #[derive(Clone, Debug, Serialize, Deserialize, Default)]
 struct StrBuilder {
@@ -270,7 +276,7 @@ pub type EnvelopeHash = u64;
 ///  Access to the underlying email object in the account's backend (for example the file or the
 ///  entry in an IMAP server) is given through `operation_token`. For more information see
 ///  `BackendOp`.
-#[derive(Debug, Clone, Default, Serialize, Deserialize)]
+#[derive(Clone, Default, Serialize, Deserialize)]
 pub struct Envelope {
     date: String,
     from: Vec<Address>,
@@ -290,6 +296,19 @@ pub struct Envelope {
     flags: Flag,
 }
 
+impl fmt::Debug for Envelope {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "Envelope {{\ndate: {}\n,from:{:#?}\nto {:#?}\nmessage_id: {},\n references: {:#?}\nhash: {}\n
+               }}",
+               self.date,
+               self.from,
+               self.to,
+               self.message_id_display(),
+               self.references,
+               self.hash)
+    }
+}
+
 impl Envelope {
     pub fn new(hash: EnvelopeHash) -> Self {
         Envelope {

melib/src/mailbox/mod.rs

@@ -43,6 +43,7 @@ use std::option::Option;
 #[derive(Debug)]
 pub struct Mailbox {
     pub folder: Folder,
+    name: String,
     pub collection: Collection,
     has_sent: bool,
 }
@@ -53,6 +54,7 @@ impl Clone for Mailbox {
             folder: self.folder.clone(),
             collection: self.collection.clone(),
             has_sent: self.has_sent,
+            name: self.name.clone(),
         }
     }
 }
@@ -62,6 +64,7 @@ impl Default for Mailbox {
             folder: folder_default(),
             collection: Collection::default(),
             has_sent: false,
+            name: String::new(),
         }
     }
 }
@@ -71,12 +74,19 @@ impl Mailbox {
         let mut envelopes: Vec<Envelope> = envelopes?;
         envelopes.sort_by(|a, b| a.date().cmp(&b.date()));
         let collection = Collection::new(envelopes, &folder);
+        let name = folder.name().into();
         Ok(Mailbox {
             folder,
             collection,
+            name: name,
             ..Default::default()
         })
     }
+
+    pub fn name(&self) -> &str {
+        &self.name
+    }
+
     pub fn is_empty(&self) -> bool {
         self.collection.is_empty()
     }

melib/src/mailbox/thread.rs

@@ -40,6 +40,7 @@ use self::fnv::{FnvHashMap, FnvHashSet};
 use std::cell::{Ref, RefCell};
 use std::cmp;
 use std::cmp::Ordering;
+use std::fmt;
 use std::iter::FromIterator;
 use std::mem;
 use std::ops::Index;
@@ -199,12 +200,18 @@ impl FromStr for SortOrder {
 /*
  * The thread tree holds the sorted state of the thread nodes */
 
-#[derive(Clone, Debug, Deserialize, Serialize)]
+#[derive(Clone, Deserialize, Serialize)]
 struct ThreadTree {
     id: usize,
     children: Vec<ThreadTree>,
 }
 
+impl fmt::Debug for ThreadTree {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "")
+    }
+}
+
 impl ThreadTree {
     fn new(id: usize) -> Self {
         ThreadTree {