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README.md

MELPA Stable MELPA Build Status

master branch is experimental

Mu4e maildirs extension

This extension adds a maildir summary in mu4e-main-view.

It runs a mu command (async) in a shell process for each maildir to count unread and total mails.

Screenshot

Requirements

This extension needs mu4e version 0.9.9.5 or newer to work.

Directory structure

This extension expects the following maildir structure in mu4e-maildir directory

account1/
  inbox/
  drafts/
  ...
account2/
  inbox/
  drafts/
  ...

Installation

It's available on MELPA.

M-x package-install mu4e-maildirs-extension
(mu4e-maildirs-extension)

Or you can copy mu4e-maildirs-extension.el file in your load path and add the following in your ~/.emacs startup file:

(require 'mu4e-maildirs-extension)
(mu4e-maildirs-extension)

Keybindings

The following key-bindings are added in mu4e-main-view:

  • u Update the index
  • C-u u only clear the cache
  • C-u C-u u clear the cache and refresh.
  • SPC Collapse/Expand maildir at point.
  • C-u SPC Collapse/Expand maildir at point and its children.
  • RET Jump to the maildir at point.
  • C-u RET Jump to the maildir at point but show only unread mails.

M-x customize

If the extension has been loaded, simply call M-x customize-group and type mu4e-maildirs-extension.

mu4e-maildirs-extension-action-key

Key shortcut to update index and cache.

mu4e-maildirs-extension-action-text

Action text to display for updating the index and cache. If set to 'Don't Display (nil)' it won't be displayed.

mu4e-maildirs-extension-after-insert-maildir-hook

Hook called after inserting a maildir.

mu4e-maildirs-extension-before-insert-maildir-hook

Hook called before inserting a maildir.

mu4e-maildirs-extension-bookmark-format

The bookmark stats format.

Available formatters:

%u is the unread count %t is the total count

mu4e-maildirs-extension-bookmark-format-spec

A function to build the bookmark format spec.

mu4e-maildirs-extension-bookmark-hl-pred

Predicate function used to highlight.

mu4e-maildirs-extension-bookmark-hl-regex

Regex to highlight when `mu4e-maildirs-extension-bookmark-hl-pred' matches.

mu4e-maildirs-extension-count-command-format

The command to count a maildir. [Most people won't need to edit this].

mu4e-maildirs-extension-custom-list

List of folders to show. If set to nil all folders are shown.

Example: '("/account1/INBOX" "/account2/INBOX")

mu4e-maildirs-extension-default-collapse-level

The default level to collapse maildirs. Set `nil' to disable.

mu4e-maildirs-extension-fake-maildir-separator

The separator to fake a hierarchy using directory names. For example:

/Archive
/Archive.foo
/Archive.foo.bar
/Archive.baz

Offlineimap does this when setting `sep = .'.

mu4e-maildirs-extension-insert-before-str

The place where the maildirs section should be inserted.

mu4e-maildirs-extension-maildir-collapsed-prefix

The prefix for collapsed maildir.

mu4e-maildirs-extension-maildir-default-prefix

The prefix for default maildir.

mu4e-maildirs-extension-maildir-expanded-prefix

The prefix for expanded maildir.

mu4e-maildirs-extension-maildir-format

The maildir format.

Available formatters:

%i is the folder indentation %p is the maildir prefix %l is the folder level %e is the expand flag %P is the maildir path %n is the maildir name %u is the unread count %t is the total count

mu4e-maildirs-extension-maildir-format-spec

A function to build the maildir format spec.

mu4e-maildirs-extension-maildir-hl-pred

Predicate function used to highlight.

mu4e-maildirs-extension-maildir-hl-regex

Regex to highlight when `mu4e-maildirs-extension-maildir-hl-pred' matches.

mu4e-maildirs-extension-maildir-indent

Maildir indentation.

mu4e-maildirs-extension-maildir-indent-char

The char used for indentation.

mu4e-maildirs-extension-parallel-processes

Max parallel processes.

mu4e-maildirs-extension-propertize-bm-func

The function to format the bookmark info. Default displays as ' (unread/total)'.

mu4e-maildirs-extension-propertize-func

The function to format the maildir info. Default displays as '| maildir_name (unread/total)'.

mu4e-maildirs-extension-title

The title for the maildirs extension section. If set to `nil' it won't be displayed.

mu4e-maildirs-extension-hide-empty-maildirs

If non-nil, hide maildirs that do not contain new mail.

mu4e-maildirs-extension-toggle-maildir-key

Key shortcut to expand/collapse maildir at point.

mu4e-maildirs-extension-updating-string

The string to show while updating in background.

mu4e-maildirs-extension-use-bookmarks

If non-nil, show the bookmarks count in the mu4e main view.

mu4e-maildirs-extension-use-maildirs

If non-nil, show the maildir summary in the mu4e main view.

mu4e-maildirs-extension-maildir-face

Face for a normal maildir.

mu4e-maildirs-extension-maildir-hl-face

Face for a highlighted maildir.

Write your own maildir format handler

If you need more customization you can change the default format | maildir_name (unread/total) providing your own function. For example, to highlight only the unread count you could use something like this in your .emacs:

(defun my/mu4e-maildirs-extension-propertize-unread-only (item)
  "Propertize only the maildir unread count using ITEM plist."
  (let ((unread (or (plist-get item :unread) 0))
        (total (or (plist-get item :total) 0)))
    (format "\t%s%s %s (%s/%s)"
            (plist-get item :indent)
            (plist-get item :prefix)
            (plist-get item :name)
            (propertize (number-to-string unread)
                        'face (cond
                               ((> unread 0) 'mu4e-maildirs-extension-maildir-hl-face)
                               (t            'mu4e-maildirs-extension-maildir-face)))
            total)))

Then set mu4e-maildirs-extension-propertize-func to my/mu4e-maildirs-extension-propertize-unread-only in the customize-group area.

Update index outside emacs

If you update the index outside emacs (by calling mu directly) you will need to update the mu4e-main-view using C-u C-u u or calling (mu4e-maildirs-extension-force-update '(16))

Changelog

Short summary of changes:

  • master:

    • Use mu4e-mu-binary
    • Add variables:
      • mu4e-maildirs-extension-use-bookmarks
      • mu4e-maildirs-extension-use-maildirs
    • Add bookmarks support (experimental)
    • Improve customizations.
    • Add new highlight options.
    • Add -load/-unload functions
    • Rename variables (old -> new):
      • mu4e-maildirs-extension-submaildir-indent -> mu4e-maildirs-extension-maildir-indent
      • mu4e-maildirs-extension-maildir-separator -> mu4e-maildirs-extension-maildir-collapsed-prefix
      • mu4e-maildirs-extension-submaildir-separator -> mu4e-maildirs-extension-maildir-default-prefix
      • mu4e-maildirs-extension-maildir-unread-face -> mu4e-maildirs-extension-maildir-hl-face
      • mu4e-maildirs-extension-cached-maildirs-data -> mu4e-maildirs-extension-maildirs
    • Add new variables:
      • mu4e-maildirs-extension-maildir-format
      • mu4e-maildirs-extension-maildir-format-spec
      • mu4e-maildirs-extension-maildir-hl-regex
      • mu4e-maildirs-extension-maildir-hl-pred
      • mu4e-maildirs-extension-before-insert-maildir-hook
      • mu4e-maildirs-extension-after-insert-maildir-hook
      • mu4e-maildirs-extension-maildir-indent-char
      • mu4e-maildirs-extension-default-collapse-level
      • mu4e-maildirs-extension-maildir-expanded-prefix
      • mu4e-maildirs-extension-fake-maildir-separator
      • mu4e-maildirs-extension-parallel-processes
    • Allow maildirs at point to collapse/expand.
    • Add async support
  • v0.8:

    • Auto-update mu4e-main-view if the index have changed and the buffer is visible.
    • Use universal argument to be able to manually clear the cache and refresh (C-u u and C-u C-u u)

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Show mu4e maildirs summary in mu4e-main-view

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