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* emacs: make sure tagging on an empty query is harmlessGravatar Mark Walters2014-05-27
| | | | | | | | | | | | | | | | | | | Currently notmuch-tag throws a "wrong-type-argument stringp nil" if passed a nil query-string. Catch this and provide a more useful error message. This fixes a case in notmuch-tree (if you try to tag when at the end of the buffer). Secondly, as pointed out by David (dme) `notmuch-search-find-stable-query-region' can return the query string () if there are no messages in the region. This gets passed to notmuch tag, and due to interactions in the optimize_query code in notmuch-tag.c becomes, in the case tag-change is -inbox, "( () ) and (tag:inbox)". This query matches some strange collection of messages which then get archived. This should probably be fixed, but in any case make `notmuch-search-find-stable-query-region' return a nil query-string in this case. This avoids data-loss (random tag removal) in this case.
* emacs: show: mark tags changed since buffer loadedGravatar Mark Walters2014-03-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows (and requires) the original-tags to be passed along with the current-tags to be passed to notmuch-tag-format-tags. This allows the tag formatting to show added and deleted tags.By default a removed tag is displayed with strike-through in red (if strike-through is not available, eg on a terminal, inverse video is used instead) and an added tag is displayed underlined in green. If the caller does not wish to use the new feature it can pass current-tags for both arguments and, at this point, we do exactly that in the three callers of this function. Note, we cannot tidily allow original-tags to be optional because we would need to distinguish nil meaning "we are not specifying original-tags" from nil meaning there were no original-tags (an empty list). We use this in subsequent patches to make it clear when a message was unread when you first loaded a show buffer (previously the unread tag could be removed before a user realised that it had been unread). The code adds into the existing tag formatting code. The user can specify exactly how a tag should be displayed normally, when deleted, or when added. Since the formatting code matches regexps a user can match all deleted tags with a ".*" in notmuch-tag-deleted-formats. For example setting notmuch-tag-deleted-formats to '((".*" nil)) tells notmuch not to show deleted tags at all. All the variables are customizable; however, more complicated cases like changing the face depending on the type of display will require custom lisp. Currently this overrides notmuch-tag-deleted-formats for the tests setting it to '((".*" nil)) so that they get removed from the display and, thus, all tests still pass.
* emacs: tag: add customize for deleted/added tag formatsGravatar Mark Walters2014-03-24
| | | | | | | | | | | | | | Add customize options for deleted/added tag formats. These are not used yet but will be later in the series. We switch to using `notmuch-apply-face' rather than `propertize' in the defcustom for faces so that the faces for deleted/added tags add to the default face attributes for the tag. We special case deleting the unread tag as that tag is a strong visual cue and we don't need that cue when we are just saying it used to be unread. Thus, we revert to the normal tag face with strikethough for deleted unread tags.
* emacs: tag split customise option for format-tags into a widgetGravatar Mark Walters2014-03-24
| | | | | | We will re-use the customize option for format-tags for formattting deleted tags to added tags in the next patch so split it into a widget. There should be no functional change.
* Make keys of notmuch-tag-formats regexps and use cachingGravatar Austin Clements2014-03-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This modifies `notmuch-tag-format-tag' to treat the keys of `notmuch-tag-formats' as (anchored) regexps, rather than literal strings. This is clearly more flexible, as it allows for prefix matching, defining a fallback format, etc. This may cause compatibility problems if people have customized `notmuch-tag-formats' to match tags that contain regexp specials, but this seems unlikely. Regular expression matching has quite a performance hit over string lookup, so this also introduces a simple cache from exact tags to formatted strings. The number of unique tags is likely to be quite small, so this cache should have a high hit rate. In addition to eliminating the regexp lookup in the common case, this cache stores fully formatted tags, eliminating the repeated evaluation of potentially expensive, user-specified formatting code. This makes regexp lookup at least as fast as assoc for unformatted tags (e.g., inbox) and *faster* than the current code for formatted tags (e.g., unread): inbox (usec) unread (usec) assoc: 0.4 2.8 regexp: 3.2 7.2 regexp+caching: 0.4 0.4 (Though even at 7.2 usec, tag formatting is not our top bottleneck.) This cache must be explicitly cleared to keep it coherent, so this adds the appropriate clearing calls.
* emacs: Combine notmuch-combine-face-text-property{, -string}Gravatar Austin Clements2014-03-24
| | | | | | | | | This combines our two face combining functions into one, easy to use function with a much shorter name: `notmuch-apply-face'. This function takes the full set of arguments that `notmuch-combine-face-text-property' took, but takes them in a more convenient order and provides smarter defaults that make the function easy to use on both strings and buffers.
* emacs: tree: use tag-format-tagsGravatar Mark Walters2014-01-18
| | | | | | | | | | | | | | | | | Previously tree did not use tag-format-tags: since tree wants to distinguish matching messages from non-matching messages it is not a perfect fit. However, in preparation for allowing tag-changes to be shown (i.e., added or deleted tags to be indicated) it is convenient to make all places displaying tags call the same routines. We modify notmuch-tag-format-tags slightly so that it can take and argument for the default characteristics of the face before the special tag features are applied. This also means that things like the star symbol for flagged messages all work in tree.
* emacs: Use notmuch tag --batch for large tag queriesGravatar Austin Clements2013-11-08
| | | | | | (Unfortunately, it's difficult to first demonstrate this problem with a known-broken test because modern Linux kernels have argument length limits in the megabytes, which makes Emacs really slow!)
* emacs: Add a space after completed tag operationsGravatar Austin Clements2013-10-27
| | | | | | | | | | | | | | Previously, when a user fully completed a tag operation, they had to press space to begin entering another tag operation. This is different from, say, shell file name completion, which typically inserts a space after an unambiguous completion under the assumption that the user will want to enter more input. This patch tweaks `notmuch-read-tag-changes' to act more like shell file name completion: after an unambiguous tag completion, it now inserts a space, ready and waiting for another tagging operation from the user. This is backwards-compatible with old habits, since there's no harm in putting an extra space.
* emacs: Remove interactive behavior of `notmuch-tag'Gravatar Austin Clements2013-10-25
| | | | | | | We no longer use this, since we've lifted all interactive behavior to the appropriate interactive entry points. Because of this, `notmuch-tag' also no longer needs to return the tag changes list, since the caller always passes it in.
* emacs: Take prompt and current tags in `notmuch-read-tag-changes'Gravatar Austin Clements2013-10-25
| | | | | | | | | | This modifies the interface of `notmuch-read-tag-changes' to take an optional prompt string as well as a list of existing tags instead of a query. This list of tags is used to populate the tag removal completions and lets the caller compute these in a more efficient/consistent manner than performing a potentially large or complex query. This patch also updates the sole current caller of `notmuch-read-tag-changes'.
* emacs: distinguish tag `flagged' on terminalGravatar Gregor Zattler2013-10-12
| | | | | | | Change foreground color to `blue' like lines representing threads with flagged messages in notmuch-search. Before tag `flagged' was shown in notmuch-show buffers as image star on graphical frames while there was no visible distinction to other flags on terminal frames.
* emacs: tag: fix compile warningGravatar Mark Walters2013-05-15
| | | | | | | | When compiling notmuch-tag.el there is a compile warning: notmuch-tag.el:27:1:Warning: cl package required at runtime Since we have decided to allow runtime use of cl we suppress this warning by adding a tail comment to the file.
* emacs: possibility to customize the rendering of tagsGravatar Damien Cassou2013-03-25
| | | | | | | | | | | | | | | | | This patch extracts the rendering of tags in notmuch-show to the notmuch-tag file. This file introduces a `notmuch-tag-formats' variable that associates each tag to a particular format. This variable can be customized thanks to the work of Austin Clements. For example, '(("unread" (propertize tag 'face '(:foreground "red"))) ("flagged" (notmuch-tag-format-image tag "star.svg"))) associates a red foreground to the "unread" tag and a star picture to the "flagged" tag. Signed-off-by: Damien Cassou <damien.cassou@gmail.com>
* emacs: add helper for tag change list manipulationGravatar Jani Nikula2012-09-19
| | | | Add a helper to create (and optionally reverse) a list of tag changes.
* emacs: allow notmuch-tag to accept string inputs and prompt for tagsGravatar Jameson Graef Rollins2012-04-29
| | | | | | | | | | | notmuch-tag is extended to accept various formats of the tag changes. In particular, user prompting for tag changes is now incorporated here, so it is common for modes. The tag binary and the notmuch-{before,after}-tag-hooks are only called if tag changes is non-nil. In all cases tag-changes is returned as a list.
* emacs: create notmuch-tag.el, and move appropriate functions from notmuch.elGravatar Jameson Graef Rollins2012-04-29
Tagging functions are used in notmuch.el, notmuch-show.el, and notmuch-message.el. There are enough common functions for tagging that it makes sense to put them all in their own library. No code is modified, just moved around.