Running multi-occur in many buffers
Multi-occur on projects
Update: Damien Cassou tricked me into extracting it in a package. You can get it here: github.com/NicolasPetton/noccur.el.
Occur-mode is one of the awesome modes that come builtin with Emacs.
Sometimes I just want to run multi-occur on all (or a subdirectory)
of a project I'm working on. Used with keyboard macros it makes it a
snap to perform modifications on many buffers at once.
I wrote a tiny package containing the following functions that does just that:
(require 'projectile)
(defun noccur-dired (regexp &optional nlines)
"Perform `multi-occur' with REGEXP in all dired marked files.
When called with a prefix argument NLINES, display NLINES lines before and after."
(interactive (occur-read-primary-args))
(multi-occur (mapcar #'find-file (dired-get-marked-files)) regexp nlines))
(defun noccur-project (regexp &optional nlines)
"Perform `multi-occur' in the current project files."
(interactive (occur-read-primary-args))
(let* ((directory (read-directory-name "Search in directory: "))
(files (if (and directory (not (string= directory (projectile-project-root))))
(projectile-files-in-project-directory directory)
(projectile-current-project-files)))
(buffers (mapcar #'find-file
(mapcar #'(lambda (file)
(expand-file-name file (projectile-project-root)))
files))))
(multi-occur buffers regexp nlines)))
(provide 'noccur)
It requires projectile for the `noccur-project` function, but `noccur-dired` is very similar and doesn't require it.
The way I use it is the following:
M-x noccur-project RET foo RET then I can edit the occur buffer's
content with occur-edit-mode (bound to e). To save changes in all
modified buffer and go back to occur-mode press C-c C-c.