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magit-repos.el (22057B)


      1 ;;; magit-repos.el --- Listing repositories  -*- lexical-binding:t -*-
      2 
      3 ;; Copyright (C) 2008-2024 The Magit Project Contributors
      4 
      5 ;; Author: Jonas Bernoulli <emacs.magit@jonas.bernoulli.dev>
      6 ;; Maintainer: Jonas Bernoulli <emacs.magit@jonas.bernoulli.dev>
      7 
      8 ;; SPDX-License-Identifier: GPL-3.0-or-later
      9 
     10 ;; Magit is free software: you can redistribute it and/or modify it
     11 ;; under the terms of the GNU General Public License as published by
     12 ;; the Free Software Foundation, either version 3 of the License, or
     13 ;; (at your option) any later version.
     14 ;;
     15 ;; Magit is distributed in the hope that it will be useful, but WITHOUT
     16 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     17 ;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
     18 ;; License for more details.
     19 ;;
     20 ;; You should have received a copy of the GNU General Public License
     21 ;; along with Magit.  If not, see <https://www.gnu.org/licenses/>.
     22 
     23 ;;; Commentary:
     24 
     25 ;; This library implements support for listing repositories.  This
     26 ;; includes getting a Lisp list of known repositories as well as a
     27 ;; mode for listing repositories in a buffer.
     28 
     29 ;;; Code:
     30 
     31 (require 'magit-core)
     32 
     33 (declare-function magit-status-setup-buffer "magit-status" (&optional directory))
     34 
     35 (defvar x-stretch-cursor)
     36 
     37 ;;; Options
     38 
     39 (defcustom magit-repository-directories nil
     40   "List of directories that are or contain Git repositories.
     41 
     42 Each element has the form (DIRECTORY . DEPTH).  DIRECTORY has
     43 to be a directory or a directory file-name, a string.  DEPTH,
     44 an integer, specifies the maximum depth to look for Git
     45 repositories.  If it is 0, then only add DIRECTORY itself.
     46 
     47 This option controls which repositories are being listed by
     48 `magit-list-repositories'.  It also affects `magit-status'
     49 \(which see) in potentially surprising ways."
     50   :package-version '(magit . "3.0.0")
     51   :group 'magit-essentials
     52   :type '(repeat (cons directory (integer :tag "Depth"))))
     53 
     54 (defgroup magit-repolist nil
     55   "List repositories in a buffer."
     56   :link '(info-link "(magit)Repository List")
     57   :group 'magit-modes)
     58 
     59 (defcustom magit-repolist-mode-hook '(hl-line-mode)
     60   "Hook run after entering Magit-Repolist mode."
     61   :package-version '(magit . "2.9.0")
     62   :group 'magit-repolist
     63   :type 'hook
     64   :get #'magit-hook-custom-get
     65   :options '(hl-line-mode))
     66 
     67 (defcustom magit-repolist-columns
     68   '(("Name"    25 magit-repolist-column-ident
     69      ())
     70     ("Version" 25 magit-repolist-column-version
     71      ((:sort magit-repolist-version<)))
     72     ("B<U"      3 magit-repolist-column-unpulled-from-upstream
     73      (;; (:help-echo "Upstream changes not in branch")
     74       (:right-align t)
     75       (:sort <)))
     76     ("B>U"      3 magit-repolist-column-unpushed-to-upstream
     77      (;; (:help-echo "Local changes not in upstream")
     78       (:right-align t)
     79       (:sort <)))
     80     ("Path"    99 magit-repolist-column-path
     81      ()))
     82   "List of columns displayed by `magit-list-repositories'.
     83 
     84 Each element has the form (HEADER WIDTH FORMAT PROPS).
     85 
     86 HEADER is the string displayed in the header.  WIDTH is the width
     87 of the column.  FORMAT is a function that is called with one
     88 argument, the repository identification (usually its basename),
     89 and with `default-directory' bound to the toplevel of its working
     90 tree.  It has to return a string to be inserted or nil.  PROPS is
     91 an alist that supports the keys `:right-align', `:pad-right' and
     92 `:sort'.
     93 
     94 The `:sort' function has a weird interface described in the
     95 docstring of `tabulated-list--get-sort'.  Alternatively `<' and
     96 `magit-repolist-version<' can be used as those functions are
     97 automatically replaced with functions that satisfy the interface.
     98 Set `:sort' to nil to inhibit sorting; if unspecified, then the
     99 column is sortable using the default sorter.
    100 
    101 You may wish to display a range of numeric columns using just one
    102 character per column and without any padding between columns, in
    103 which case you should use an appropriate HEADER, set WIDTH to 1,
    104 and set `:pad-right' to 0.  \"+\" is substituted for numbers higher
    105 than 9."
    106   :package-version '(magit . "2.12.0")
    107   :group 'magit-repolist
    108   :type '(repeat (list :tag "Column"
    109                        (string   :tag "Header Label")
    110                        (integer  :tag "Column Width")
    111                        (function :tag "Inserter Function")
    112                        (repeat   :tag "Properties"
    113                                  (list (choice :tag "Property"
    114                                                (const :right-align)
    115                                                (const :pad-right)
    116                                                (const :sort)
    117                                                (symbol))
    118                                        (sexp   :tag "Value"))))))
    119 
    120 (defcustom magit-repolist-column-flag-alist
    121   '((magit-untracked-files . "N")
    122     (magit-unstaged-files . "U")
    123     (magit-staged-files . "S"))
    124   "Association list of predicates and flags for `magit-repolist-column-flag'.
    125 
    126 Each element is of the form (FUNCTION . FLAG).  Each FUNCTION is
    127 called with no arguments, with `default-directory' bound to the
    128 top level of a repository working tree, until one of them returns
    129 a non-nil value.  FLAG corresponding to that function is returned
    130 as the value of `magit-repolist-column-flag'."
    131   :package-version '(magit . "3.0.0")
    132   :group 'magit-repolist
    133   :type '(alist :key-type (function :tag "Predicate Function")
    134                 :value-type (string :tag "Flag")))
    135 
    136 (defcustom magit-repolist-sort-key '("Path" . nil)
    137   "Initial sort key for buffer created by `magit-list-repositories'.
    138 If nil, no additional sorting is performed.  Otherwise, this
    139 should be a cons cell (NAME . FLIP).  NAME is a string matching
    140 one of the column names in `magit-repolist-columns'.  FLIP, if
    141 non-nil, means to invert the resulting sort."
    142   :package-version '(magit . "3.2.0")
    143   :group 'magit-repolist
    144   :type '(choice (const nil)
    145                  (cons (string :tag "Column name")
    146                        (boolean :tag "Flip order"))))
    147 
    148 ;;; List Repositories
    149 ;;;; List Commands
    150 ;;;###autoload
    151 (defun magit-list-repositories ()
    152   "Display a list of repositories.
    153 
    154 Use the option `magit-repository-directories' to control which
    155 repositories are displayed."
    156   (interactive)
    157   (magit-repolist-setup (default-value 'magit-repolist-columns)))
    158 
    159 ;;;; Mode Commands
    160 
    161 (defun magit-repolist-status (&optional _button)
    162   "Show the status for the repository at point."
    163   (interactive)
    164   (if-let ((id (tabulated-list-get-id)))
    165       (magit-status-setup-buffer (expand-file-name id))
    166     (user-error "There is no repository at point")))
    167 
    168 (defun magit-repolist-mark ()
    169   "Mark a repository and move to the next line."
    170   (interactive)
    171   (magit-repolist--ensure-padding)
    172   (tabulated-list-put-tag "*" t))
    173 
    174 (defun magit-repolist-unmark ()
    175   "Unmark a repository and move to the next line."
    176   (interactive)
    177   (tabulated-list-put-tag " " t))
    178 
    179 (defun magit-repolist-fetch (repos)
    180   "Fetch all marked or listed repositories."
    181   (interactive (list (magit-repolist--get-repos ?*)))
    182   (run-hooks 'magit-credential-hook)
    183   (magit-repolist--mapc (apply-partially #'magit-run-git "remote" "update")
    184                         repos "Fetching in %s..."))
    185 
    186 (defun magit-repolist-find-file-other-frame (repos file)
    187   "Find a file in all marked or listed repositories."
    188   (interactive (list (magit-repolist--get-repos ?*)
    189                      (read-string "Find file in repositories: ")))
    190   (magit-repolist--mapc (apply-partially #'find-file-other-frame file) repos))
    191 
    192 (defun magit-repolist--ensure-padding ()
    193   "Set `tabulated-list-padding' to 2, unless that is already non-zero."
    194   (when (zerop tabulated-list-padding)
    195     (setq tabulated-list-padding 2)
    196     (tabulated-list-init-header)
    197     (tabulated-list-print t)))
    198 
    199 (defun magit-repolist--get-repos (&optional char)
    200   "Return marked repositories or `all' if none are marked.
    201 If optional CHAR is non-nil, then only return repositories
    202 marked with that character.  If no repositories are marked
    203 then ask whether to act on all repositories instead."
    204   (or (magit-repolist--marked-repos char)
    205       (if (magit-confirm 'repolist-all
    206             "Nothing selected.  Act on ALL displayed repositories")
    207           'all
    208         (user-error "Abort"))))
    209 
    210 (defun magit-repolist--marked-repos (&optional char)
    211   "Return marked repositories.
    212 If optional CHAR is non-nil, then only return repositories
    213 marked with that character."
    214   (let (c list)
    215     (save-excursion
    216       (goto-char (point-min))
    217       (while (not (eobp))
    218         (setq c (char-after))
    219         (unless (eq c ?\s)
    220           (if char
    221               (when (eq c char)
    222                 (push (tabulated-list-get-id) list))
    223             (push (cons c (tabulated-list-get-id)) list)))
    224         (forward-line)))
    225     list))
    226 
    227 (defun magit-repolist--mapc (fn repos &optional msg)
    228   "Apply FN to each directory in REPOS for side effects only.
    229 If REPOS is the symbol `all', then call FN for all displayed
    230 repositories.  When FN is called, `default-directory' is bound to
    231 the top-level directory of the current repository.  If optional
    232 MSG is non-nil then that is displayed around each call to FN.
    233 If it contains \"%s\" then the directory is substituted for that."
    234   (when (eq repos 'all)
    235     (setq repos nil)
    236     (save-excursion
    237       (goto-char (point-min))
    238       (while (not (eobp))
    239         (push (tabulated-list-get-id) repos)
    240         (forward-line)))
    241     (setq repos (nreverse repos)))
    242   (let ((base default-directory)
    243         (len (length repos))
    244         (i 0))
    245     (mapc (lambda (repo)
    246             (let ((default-directory
    247                    (file-name-as-directory (expand-file-name repo base))))
    248               (if msg
    249                   (let ((msg (concat (format "(%s/%s) " (cl-incf i) len)
    250                                      (format msg default-directory))))
    251                     (message msg)
    252                     (funcall fn)
    253                     (message (concat msg "done")))
    254                 (funcall fn))))
    255           repos)))
    256 
    257 ;;;; Mode
    258 
    259 (defvar-keymap magit-repolist-mode-map
    260   :doc "Local keymap for Magit-Repolist mode buffers."
    261   :parent tabulated-list-mode-map
    262   "C-m" #'magit-repolist-status
    263   "m"   #'magit-repolist-mark
    264   "u"   #'magit-repolist-unmark
    265   "f"   #'magit-repolist-fetch
    266   "5"   #'magit-repolist-find-file-other-frame)
    267 
    268 (define-derived-mode magit-repolist-mode tabulated-list-mode "Repos"
    269   "Major mode for browsing a list of Git repositories."
    270   :interactive nil
    271   :group 'magit-repolist
    272   (setq-local x-stretch-cursor nil)
    273   (setq tabulated-list-padding 0)
    274   (add-hook 'tabulated-list-revert-hook #'magit-repolist-refresh nil t)
    275   (setq imenu-prev-index-position-function
    276         #'magit-repolist--imenu-prev-index-position)
    277   (setq imenu-extract-index-name-function #'tabulated-list-get-id))
    278 
    279 (defun magit-repolist-setup (columns)
    280   (unless magit-repository-directories
    281     (user-error "You need to customize `magit-repository-directories' %s"
    282                 "before you can list repositories"))
    283   (with-current-buffer (get-buffer-create "*Magit Repositories*")
    284     (magit-repolist-mode)
    285     (setq-local magit-repolist-columns columns)
    286     (magit-repolist-setup-1)
    287     (magit-repolist-refresh)
    288     (switch-to-buffer (current-buffer))))
    289 
    290 (defun magit-repolist-setup-1 ()
    291   (unless tabulated-list-sort-key
    292     (setq tabulated-list-sort-key
    293           (pcase-let ((`(,column . ,flip) magit-repolist-sort-key))
    294             (cons (or (car (assoc column magit-repolist-columns))
    295                       (caar magit-repolist-columns))
    296                   flip))))
    297   (setq tabulated-list-format
    298         (vconcat (seq-map-indexed
    299                   (lambda (column idx)
    300                     (pcase-let* ((`(,title ,width ,_fn ,props) column)
    301                                  (sort-set (assoc :sort props))
    302                                  (sort-fn (cadr sort-set)))
    303                       (nconc (list title width
    304                                    (cond ((eq sort-fn '<)
    305                                           (magit-repolist-make-sorter
    306                                            sort-fn #'string-to-number idx))
    307                                          ((eq sort-fn 'magit-repolist-version<)
    308                                           (magit-repolist-make-sorter
    309                                            sort-fn #'identity idx))
    310                                          (sort-fn sort-fn)
    311                                          (sort-set nil)
    312                                          (t t)))
    313                              (flatten-tree props))))
    314                   magit-repolist-columns))))
    315 
    316 (defun magit-repolist-refresh ()
    317   (setq tabulated-list-entries
    318         (mapcar (pcase-lambda (`(,id . ,path))
    319                   (let ((default-directory path))
    320                     (list path
    321                           (vconcat
    322                            (mapcar (pcase-lambda (`(,title ,width ,fn ,props))
    323                                      (or (funcall fn `((:id ,id)
    324                                                        (:title ,title)
    325                                                        (:width ,width)
    326                                                        ,@props))
    327                                          ""))
    328                                    magit-repolist-columns)))))
    329                 (magit-list-repos-uniquify
    330                  (--map (cons (file-name-nondirectory (directory-file-name it))
    331                               it)
    332                         (magit-list-repos)))))
    333   (message "Listing repositories...")
    334   (tabulated-list-init-header)
    335   (tabulated-list-print t)
    336   (message "Listing repositories...done"))
    337 
    338 (defun magit-repolist--imenu-prev-index-position ()
    339   (and (not (bobp))
    340        (forward-line -1)))
    341 
    342 ;;;; Columns
    343 
    344 (defun magit-repolist-make-sorter (sort-predicate convert-cell column-idx)
    345   "Return a function suitable as a sorter for tabulated lists.
    346 See `tabulated-list--get-sorter'.  Given a more reasonable API
    347 this would not be necessary and one could just use SORT-PREDICATE
    348 directly.  CONVERT-CELL can be used to turn the cell value, which
    349 is always a string back into, e.g., a number.  COLUMN-IDX has to
    350 be the index of the column that uses the returned sorter function."
    351   (lambda (a b)
    352     (funcall sort-predicate
    353              (funcall convert-cell (aref (cadr a) column-idx))
    354              (funcall convert-cell (aref (cadr b) column-idx)))))
    355 
    356 (defun magit-repolist-column-ident (spec)
    357   "Insert the identification of the repository.
    358 Usually this is just its basename."
    359   (cadr (assq :id spec)))
    360 
    361 (defun magit-repolist-column-path (_)
    362   "Insert the absolute path of the repository."
    363   (abbreviate-file-name default-directory))
    364 
    365 (defvar magit-repolist-column-version-regexp "\
    366 \\(?1:-\\(?2:[0-9]*\\)\
    367 \\(?3:-g[a-z0-9]*\\)\\)?\
    368 \\(?:-\\(?4:dirty\\)\\)\
    369 ?\\'")
    370 
    371 (defvar magit-repolist-column-version-resume-regexp
    372   "\\`Resume development\\'")
    373 
    374 (defun magit-repolist-column-version (_)
    375   "Insert a description of the repository's `HEAD' revision."
    376   (and-let* ((v (or (magit-git-string "describe" "--tags" "--dirty")
    377                     ;; If there are no tags, use the date in MELPA format.
    378                     (magit-rev-format "%cd-g%h" nil
    379                                       "--date=format:%Y%m%d.%H%M"))))
    380     (save-match-data
    381       (when (string-match magit-repolist-column-version-regexp v)
    382         (magit--put-face (match-beginning 0) (match-end 0) 'shadow v)
    383         (when (match-end 2)
    384           (magit--put-face (match-beginning 2) (match-end 2) 'bold v))
    385         (when (match-end 4)
    386           (magit--put-face (or (match-beginning 3) (match-beginning 4))
    387                            (match-end 4) 'error v))
    388         (when (and (equal (match-string 2 v) "1")
    389                    (string-match-p magit-repolist-column-version-resume-regexp
    390                                    (magit-rev-format "%s")))
    391           (setq v (replace-match (propertize "+" 'face 'shadow) t t v 1))))
    392       (if (and v (string-match "\\`[0-9]" v))
    393           (concat " " v)
    394         (when (and v (string-match "\\`[^0-9]+" v))
    395           (magit--put-face 0 (match-end 0) 'shadow v))
    396         v))))
    397 
    398 (defun magit-repolist-version< (a b)
    399   (save-match-data
    400     (let ((re "[0-9]+\\(\\.[0-9]*\\)*"))
    401       (setq a (and (string-match re a) (match-string 0 a)))
    402       (setq b (and (string-match re b) (match-string 0 b)))
    403       (cond ((and a b) (version< a b))
    404             (b nil)
    405             (t t)))))
    406 
    407 (defun magit-repolist-column-branch (_)
    408   "Insert the current branch."
    409   (let ((branch (magit-get-current-branch)))
    410     (if (member branch magit-main-branch-names)
    411         (magit--propertize-face branch 'shadow)
    412       branch)))
    413 
    414 (defun magit-repolist-column-upstream (_)
    415   "Insert the upstream branch of the current branch."
    416   (magit-get-upstream-branch))
    417 
    418 (defun magit-repolist-column-flag (_)
    419   "Insert a flag as specified by `magit-repolist-column-flag-alist'.
    420 
    421 By default this indicates whether there are uncommitted changes.
    422 - N if there is at least one untracked file.
    423 - U if there is at least one unstaged file.
    424 - S if there is at least one staged file.
    425 Only one letter is shown, the first that applies."
    426   (seq-some (pcase-lambda (`(,fun . ,flag))
    427               (and (funcall fun) flag))
    428             magit-repolist-column-flag-alist))
    429 
    430 (defun magit-repolist-column-flags (_)
    431   "Insert all flags as specified by `magit-repolist-column-flag-alist'.
    432 This is an alternative to function `magit-repolist-column-flag',
    433 which only lists the first one found."
    434   (mapconcat (pcase-lambda (`(,fun . ,flag))
    435                (if (funcall fun) flag " "))
    436              magit-repolist-column-flag-alist
    437              ""))
    438 
    439 (defun magit-repolist-column-unpulled-from-upstream (spec)
    440   "Insert number of upstream commits not in the current branch."
    441   (and-let* ((br (magit-get-upstream-branch)))
    442     (magit-repolist-insert-count (cadr (magit-rev-diff-count "HEAD" br)) spec)))
    443 
    444 (defun magit-repolist-column-unpulled-from-pushremote (spec)
    445   "Insert number of commits in the push branch but not the current branch."
    446   (and-let* ((br (magit-get-push-branch nil t)))
    447     (magit-repolist-insert-count (cadr (magit-rev-diff-count "HEAD" br)) spec)))
    448 
    449 (defun magit-repolist-column-unpushed-to-upstream (spec)
    450   "Insert number of commits in the current branch but not its upstream."
    451   (and-let* ((br (magit-get-upstream-branch)))
    452     (magit-repolist-insert-count (car (magit-rev-diff-count "HEAD" br)) spec)))
    453 
    454 (defun magit-repolist-column-unpushed-to-pushremote (spec)
    455   "Insert number of commits in the current branch but not its push branch."
    456   (and-let* ((br (magit-get-push-branch nil t)))
    457     (magit-repolist-insert-count (car (magit-rev-diff-count "HEAD" br)) spec)))
    458 
    459 (defun magit-repolist-column-branches (spec)
    460   "Insert number of branches."
    461   (magit-repolist-insert-count (length (magit-list-local-branches))
    462                                `((:normal-count 1) ,@spec)))
    463 
    464 (defun magit-repolist-column-stashes (spec)
    465   "Insert number of stashes."
    466   (magit-repolist-insert-count (length (magit-list-stashes)) spec))
    467 
    468 (defun magit-repolist-insert-count (n spec)
    469   (magit--propertize-face
    470    (if (and  (> n 9) (= (cadr (assq :width spec)) 1))
    471        "+"
    472      (number-to-string n))
    473    (if (> n (or (cadr (assq :normal-count spec)) 0)) 'bold 'shadow)))
    474 
    475 ;;; Read Repository
    476 
    477 (defun magit-read-repository (&optional read-directory-name)
    478   "Read a Git repository in the minibuffer, with completion.
    479 
    480 The completion choices are the basenames of top-levels of
    481 repositories found in the directories specified by option
    482 `magit-repository-directories'.  In case of name conflicts
    483 the basenames are prefixed with the name of the respective
    484 parent directories.  The returned value is the actual path
    485 to the selected repository.
    486 
    487 If READ-DIRECTORY-NAME is non-nil or no repositories can be
    488 found based on the value of `magit-repository-directories',
    489 then read an arbitrary directory using `read-directory-name'
    490 instead."
    491   (if-let ((repos (and (not read-directory-name)
    492                        magit-repository-directories
    493                        (magit-repos-alist))))
    494       (let ((reply (magit-completing-read "Git repository" repos)))
    495         (file-name-as-directory
    496          (or (cdr (assoc reply repos))
    497              (if (file-directory-p reply)
    498                  (expand-file-name reply)
    499                (user-error "Not a repository or a directory: %s" reply)))))
    500     (file-name-as-directory
    501      (read-directory-name "Git repository: "
    502                           (or (magit-toplevel) default-directory)))))
    503 
    504 (defun magit-list-repos ()
    505   (cl-mapcan (pcase-lambda (`(,dir . ,depth))
    506                (magit-list-repos-1 dir depth))
    507              magit-repository-directories))
    508 
    509 (defun magit-list-repos-1 (directory depth)
    510   (cond ((file-readable-p (expand-file-name ".git" directory))
    511          (list (file-name-as-directory directory)))
    512         ((and (> depth 0) (file-accessible-directory-p directory))
    513          (--mapcat (and (file-directory-p it)
    514                         (magit-list-repos-1 it (1- depth)))
    515                    (directory-files directory t
    516                                     directory-files-no-dot-files-regexp t)))))
    517 
    518 (defun magit-list-repos-uniquify (alist)
    519   (let (result (dict (make-hash-table :test #'equal)))
    520     (dolist (a (delete-dups alist))
    521       (puthash (car a) (cons (cdr a) (gethash (car a) dict)) dict))
    522     (maphash
    523      (lambda (key value)
    524        (if (length= value 1)
    525            (push (cons key (car value)) result)
    526          (setq result
    527                (append result
    528                        (magit-list-repos-uniquify
    529                         (--map (cons (concat
    530                                       key "\\"
    531                                       (file-name-nondirectory
    532                                        (directory-file-name
    533                                         (substring it 0 (- (1+ (length key)))))))
    534                                      it)
    535                                value))))))
    536      dict)
    537     result))
    538 
    539 (defun magit-repos-alist ()
    540   (magit-list-repos-uniquify
    541    (--map (cons (file-name-nondirectory (directory-file-name it)) it)
    542           (magit-list-repos))))
    543 
    544 ;;; _
    545 (provide 'magit-repos)
    546 ;;; magit-repos.el ends here