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add rudimentary completion support for retag action 

This adds a variable mu4e-action-tags-completion-list, that contains a
list of commonly used tags to suggest as completion terms during a retag
actions.

Along the way, the retag action accepts as argument a comma-separated
list of +tag and -tag keywords, instead of a space-separated one,
removing the need to quote tags with spaces in them, and making it
consistent with the behaviour of completing-read-multiple.
This commit is contained in:
Abdo Roig-Maranges 2014-10-30 14:08:14 +01:00
parent 2507933176
commit cba2e0c21c
1 changed files with 20 additions and 5 deletions
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25
mu4e/mu4e-actions.el
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@ -240,6 +240,10 @@ bother asking for the git tree again (useful for bulk actions)."
this setting on already tagged messages can lead to messages
with multiple tags headers.")
(defvar mu4e-action-tags-completion-list '()
"List of tags to show for autocompletion in
`mu4e-action-retag-message'.")
(defun mu4e~contains-line-matching (regexp path)
"Determine whether the file at path contains a line matching
the given regexp."
@ -262,12 +266,23 @@ bother asking for the git tree again (useful for bulk actions)."
(replace-match to-string nil nil)))))
(defun mu4e-action-retag-message (msg &optional retag-arg)
"Change tags of a message. Example: +tag \"+long tag\" -oldtag
adds 'tag' and 'long tag', and removes oldtag."
(let* ((retag (or retag-arg (read-string "Tags: ")))
(path (mu4e-message-field msg :path))
"Change tags of a message. Accepts a comma-separated list of
additions and removals.
Example: +tag,+long tag,-oldtag
would add 'tag' and 'long tag', and remove 'oldtag'."
(let* (
(path (mu4e-message-field msg :path))
(maildir (mu4e-message-field msg :maildir))
(oldtags (mu4e-message-field msg :tags))
(tags-completion (append
mu4e-action-tags-completion-list
(mapcar (lambda (tag) (format "+%s" tag)) mu4e-action-tags-completion-list)
(mapcar (lambda (tag) (format "-%s" tag)) oldtags)))
(retag (if retag-arg
(split-string retag-arg ",")
(completing-read-multiple "Tags: " tags-completion)))
(header mu4e-action-tags-header)
(sep (cond ((string= header "Keywords") ", ")
((string= header "X-Label") " ")
@ -275,7 +290,7 @@ bother asking for the git tree again (useful for bulk actions)."
(t ", ")))
(taglist (if oldtags (copy-sequence oldtags) '()))
tagstr)
(dolist (tag (split-string-and-unquote retag) taglist)
(dolist (tag retag taglist)
(cond
((string-match "^\\+\\(.+\\)" tag)
(setq taglist (push (match-string 1 tag) taglist)))