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git.el: Keep the status buffer sorted by filename.

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This makes insertions and updates much more efficient.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Alexandre Julliard 2007-09-13 11:49:40 +02:00 committed by Junio C Hamano
parent 88b7dd4597
commit 1b655040be
1 changed files with 65 additions and 38 deletions
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103
contrib/emacs/git.el
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@ -479,6 +479,27 @@ and returns the process output as a string."
(setf (git-fileinfo->orig-name info) nil)
(setf (git-fileinfo->needs-refresh info) t))))
(defun git-set-filenames-state (status files state)
"Set the state of a list of named files."
(when files
(setq files (sort files #'string-lessp))
(let ((file (pop files))
(node (ewoc-nth status 0)))
(while (and file node)
(let ((info (ewoc-data node)))
(cond ((string-lessp (git-fileinfo->name info) file)
(setq node (ewoc-next status node)))
((string-equal (git-fileinfo->name info) file)
(unless (eq (git-fileinfo->state info) state)
(setf (git-fileinfo->state info) state)
(setf (git-fileinfo->rename-state info) nil)
(setf (git-fileinfo->orig-name info) nil)
(setf (git-fileinfo->needs-refresh info) t))
(setq file (pop files)))
(t (setq file (pop files)))))))
(unless state ;; delete files whose state has been set to nil
(ewoc-filter status (lambda (info) (git-fileinfo->state info))))))
(defun git-state-code (code)
"Convert from a string to a added/deleted/modified state."
(case (string-to-char code)
@ -532,19 +553,36 @@ and returns the process output as a string."
" " (git-escape-file-name (git-fileinfo->name info))
(git-rename-as-string info))))
(defun git-insert-fileinfo (status info &optional refresh)
"Insert INFO in the status buffer, optionally refreshing an existing one."
(let ((node (and refresh
(git-find-status-file status (git-fileinfo->name info)))))
(setf (git-fileinfo->needs-refresh info) t)
(when node ;preserve the marked flag
(setf (git-fileinfo->marked info) (git-fileinfo->marked (ewoc-data node))))
(if node (setf (ewoc-data node) info) (ewoc-enter-last status info))))
(defun git-insert-info-list (status infolist)
"Insert a list of file infos in the status buffer, replacing existing ones if any."
(setq infolist (sort infolist
(lambda (info1 info2)
(string-lessp (git-fileinfo->name info1)
(git-fileinfo->name info2)))))
(let ((info (pop infolist))
(node (ewoc-nth status 0)))
(while info
(setf (git-fileinfo->needs-refresh info) t)
(cond ((not node)
(ewoc-enter-last status info)
(setq info (pop infolist)))
((string-lessp (git-fileinfo->name (ewoc-data node))
(git-fileinfo->name info))
(setq node (ewoc-next status node)))
((string-equal (git-fileinfo->name (ewoc-data node))
(git-fileinfo->name info))
;; preserve the marked flag
(setf (git-fileinfo->marked info) (git-fileinfo->marked (ewoc-data node)))
(setf (ewoc-data node) info)
(setq info (pop infolist)))
(t
(ewoc-enter-before status node info)
(setq info (pop infolist)))))))
(defun git-run-diff-index (status files)
"Run git-diff-index on FILES and parse the results into STATUS.
Return the list of files that haven't been handled."
(let ((refresh files))
(let (infolist)
(with-temp-buffer
(apply #'git-run-command t nil "diff-index" "-z" "-M" "HEAD" "--" files)
(goto-char (point-min))
@ -558,13 +596,14 @@ Return the list of files that haven't been handled."
(new-name (match-string 8)))
(if new-name ; copy or rename
(if (eq ?C (string-to-char state))
(git-insert-fileinfo status (git-create-fileinfo 'added new-name old-perm new-perm 'copy name) refresh)
(git-insert-fileinfo status (git-create-fileinfo 'deleted name 0 0 'rename new-name) refresh)
(git-insert-fileinfo status (git-create-fileinfo 'added new-name old-perm new-perm 'rename name)) refresh)
(git-insert-fileinfo status (git-create-fileinfo (git-state-code state) name old-perm new-perm) refresh))
(push (git-create-fileinfo 'added new-name old-perm new-perm 'copy name) infolist)
(push (git-create-fileinfo 'deleted name 0 0 'rename new-name) infolist)
(push (git-create-fileinfo 'added new-name old-perm new-perm 'rename name) infolist))
(push (git-create-fileinfo (git-state-code state) name old-perm new-perm) infolist))
(setq files (delete name files))
(when new-name (setq files (delete new-name files)))))))
files)
(when new-name (setq files (delete new-name files))))))
(git-insert-info-list status infolist)
files))
(defun git-find-status-file (status file)
"Find a given file in the status ewoc and return its node."
@ -576,16 +615,16 @@ Return the list of files that haven't been handled."
(defun git-run-ls-files (status files default-state &rest options)
"Run git-ls-files on FILES and parse the results into STATUS.
Return the list of files that haven't been handled."
(let ((refresh files))
(let (infolist)
(with-temp-buffer
(apply #'git-run-command t nil "ls-files" "-z" "-t" (append options (list "--") files))
(apply #'git-run-command t nil "ls-files" "-z" (append options (list "--") files))
(goto-char (point-min))
(while (re-search-forward "\\([HMRCK?]\\) \\([^\0]*\\)\0" nil t 1)
(let ((state (match-string 1))
(name (match-string 2)))
(git-insert-fileinfo status (git-create-fileinfo (or (git-state-code state) default-state) name) refresh)
(setq files (delete name files))))))
files)
(while (re-search-forward "\\([^\0]*\\)\0" nil t 1)
(let ((name (match-string 1)))
(push (git-create-fileinfo default-state name) infolist)
(setq files (delete name files)))))
(git-insert-info-list status infolist)
files))
(defun git-run-ls-unmerged (status files)
"Run git-ls-files -u on FILES and parse the results into STATUS."
@ -594,9 +633,8 @@ Return the list of files that haven't been handled."
(goto-char (point-min))
(let (unmerged-files)
(while (re-search-forward "[0-7]\\{6\\} [0-9a-f]\\{40\\} [123]\t\\([^\0]+\\)\0" nil t)
(let ((node (git-find-status-file status (match-string 1))))
(when node (push (ewoc-data node) unmerged-files))))
(git-set-files-state unmerged-files 'unmerged))))
(push (match-string 1) unmerged-files))
(git-set-filenames-state status unmerged-files 'unmerged))))
(defun git-get-exclude-files ()
"Get the list of exclude files to pass to git-ls-files."
@ -622,18 +660,7 @@ Return the list of files that haven't been handled."
(setq remaining-files (apply #'git-run-ls-files status remaining-files 'unknown "-o"
(concat "--exclude-per-directory=" git-per-dir-ignore-file)
(mapcar (lambda (f) (concat "--exclude-from=" f)) exclude-files)))))
; mark remaining files with the default state (or remove them if nil)
(when remaining-files
(if default-state
(ewoc-map (lambda (info)
(when (member (git-fileinfo->name info) remaining-files)
(git-set-files-state (list info) default-state))
nil)
status)
(ewoc-filter status
(lambda (info files)
(not (member (git-fileinfo->name info) files)))
remaining-files)))
(git-set-filenames-state status remaining-files default-state)
(git-refresh-files)
(git-refresh-ewoc-hf status)))