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master 505edceaf44: Use the project--list as history when prompting for
From: |
Dmitry Gutov |
Subject: |
master 505edceaf44: Use the project--list as history when prompting for a project |
Date: |
Fri, 24 Nov 2023 21:07:36 -0500 (EST) |
branch: master
commit 505edceaf44a9d4e072975473170a674b949e504
Author: Spencer Baugh <sbaugh@janestreet.com>
Commit: Dmitry Gutov <dmitry@gutov.dev>
Use the project--list as history when prompting for a project
The project--list is already ordered such that the most recently used
projects are at the front. Now we use it as the minibuffer history
when prompting for a project.
To avoid savehist from picking up project--list as a minibuffer
history variable and overriding our own persistence mechanism, we
don't pass project--list directly as a history variable, but instead
pass project--dir-history or project--name-history, dynamically-bound
to an appropriate value. project--dir-history and
project--name-history won't be persisted since they're always unbound
at the top level; but if they are persisted anyway somehow, it won't
affect us.
If we later find a way to rely on savehist for persistence instead of
having our own mechanism, we can change the in-memory format of
project--list to be just a list of directories, and our explicit calls
to project--add-dir can be replaced by let-binding
history-delete-duplicates=t, history-length=t.
* lisp/progmodes/project.el (project--remember-dir): Add.
(project-remember-project): Use project--remember-dir.
(project--name-history, project-prompt-project-name)
(project--dir-history, project-prompt-project-dir): Pass a
preprocessed project--list as HIST to completing-read. (bug#67310)
(project-switch-project): Call project--remember-dir.
---
lisp/progmodes/project.el | 39 ++++++++++++++++++++++++++++++---------
1 file changed, 30 insertions(+), 9 deletions(-)
diff --git a/lisp/progmodes/project.el b/lisp/progmodes/project.el
index 95db9d0ef4c..bdf8aab003b 100644
--- a/lisp/progmodes/project.el
+++ b/lisp/progmodes/project.el
@@ -1721,13 +1721,12 @@ With some possible metadata (to be decided).")
(current-buffer)))
(write-region nil nil filename nil 'silent))))
-;;;###autoload
-(defun project-remember-project (pr &optional no-write)
- "Add project PR to the front of the project list.
+(defun project--remember-dir (root &optional no-write)
+ "Add project root ROOT to the front of the project list.
Save the result in `project-list-file' if the list of projects
has changed, and NO-WRITE is nil."
(project--ensure-read-project-list)
- (let ((dir (abbreviate-file-name (project-root pr))))
+ (let ((dir (abbreviate-file-name root)))
(unless (equal (caar project--list) dir)
(dolist (ent project--list)
(when (equal dir (car ent))
@@ -1736,6 +1735,13 @@ has changed, and NO-WRITE is nil."
(unless no-write
(project--write-project-list)))))
+;;;###autoload
+(defun project-remember-project (pr &optional no-write)
+ "Add project PR to the front of the project list.
+Save the result in `project-list-file' if the list of projects
+has changed, and NO-WRITE is nil."
+ (project--remember-dir (project-root pr) no-write))
+
(defun project--remove-from-project-list (project-root report-message)
"Remove directory PROJECT-ROOT of a missing project from the project list.
If the directory was in the list before the removal, save the
@@ -1757,6 +1763,8 @@ the project list."
(project--remove-from-project-list
project-root "Project `%s' removed from known projects"))
+(defvar project--dir-history)
+
(defun project-prompt-project-dir ()
"Prompt the user for a directory that is one of the known project roots.
The project is chosen among projects known from the project list,
@@ -1769,27 +1777,37 @@ It's also possible to enter an arbitrary directory not
in the list."
;; completion style).
(project--file-completion-table
(append project--list `(,dir-choice))))
+ (project--dir-history (project-known-project-roots))
(pr-dir ""))
(while (equal pr-dir "")
;; If the user simply pressed RET, do this again until they don't.
- (setq pr-dir (completing-read "Select project: " choices nil t)))
+ (setq pr-dir
+ (let (history-add-new-input)
+ (completing-read "Select project: " choices nil t nil
'project--dir-history))))
(if (equal pr-dir dir-choice)
(read-directory-name "Select directory: " default-directory nil t)
pr-dir)))
+(defvar project--name-history)
+
(defun project-prompt-project-name ()
"Prompt the user for a project, by name, that is one of the known project
roots.
The project is chosen among projects known from the project list,
see `project-list-file'.
It's also possible to enter an arbitrary directory not in the list."
(let* ((dir-choice "... (choose a dir)")
+ project--name-history
(choices
(let (ret)
- (dolist (dir (project-known-project-roots))
+ ;; Iterate in reverse order so project--name-history is in
+ ;; the correct order.
+ (dolist (dir (reverse (project-known-project-roots)))
;; we filter out directories that no longer map to a project,
;; since they don't have a clean project-name.
- (if-let (proj (project--find-in-directory dir))
- (push (cons (project-name proj) proj) ret)))
+ (when-let (proj (project--find-in-directory dir))
+ (let ((name (project-name proj)))
+ (push name project--name-history)
+ (push (cons name proj) ret))))
ret))
;; XXX: Just using this for the category (for the substring
;; completion style).
@@ -1798,7 +1816,9 @@ It's also possible to enter an arbitrary directory not in
the list."
(pr-name ""))
(while (equal pr-name "")
;; If the user simply pressed RET, do this again until they don't.
- (setq pr-name (completing-read "Select project: " table nil t)))
+ (setq pr-name
+ (let (history-add-new-input)
+ (completing-read "Select project: " table nil t nil
'project--name-history))))
(if (equal pr-name dir-choice)
(read-directory-name "Select directory: " default-directory nil t)
(let ((proj (assoc pr-name choices)))
@@ -2064,6 +2084,7 @@ made from `project-switch-commands'.
When called in a program, it will use the project corresponding
to directory DIR."
(interactive (list (funcall project-prompter)))
+ (project--remember-dir dir)
(let ((command (if (symbolp project-switch-commands)
project-switch-commands
(project--switch-project-command)))
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