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|
;;; vc-bzr.el --- VC backend for the bzr revision control system -*- lexical-binding: t -*-
;; Copyright (C) 2006-2025 Free Software Foundation, Inc.
;; Author: Dave Love <fx@gnu.org>
;; Riccardo Murri <riccardo.murri@gmail.com>
;; Maintainer: emacs-devel@gnu.org
;; Keywords: vc tools
;; Created: Sept 2006
;; Package: vc
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; See <URL:https://bazaar.canonical.com/> concerning bzr.
;; This library provides bzr support in VC.
;; Known bugs
;; ==========
;; When editing a symlink and *both* the symlink and its target
;; are bzr-versioned, `vc-bzr' presently runs `bzr status' on the
;; symlink, thereby not detecting whether the actual contents
;; (that is, the target contents) are changed.
;;; Properties of the backend
(defun vc-bzr-revision-granularity () 'repository)
(defun vc-bzr-checkout-model (_files) 'implicit)
;;; Code:
(require 'vc-dispatcher)
(eval-when-compile
(require 'cl-lib)
(require 'vc-dir)) ; vc-dir-at-event
(declare-function vc-deduce-fileset "vc"
(&optional observer allow-unregistered
state-model-only-files))
;; Clear up the cache to force vc-call to check again and discover
;; new functions when we reload this file.
(put 'Bzr 'vc-functions nil)
(defgroup vc-bzr nil
"VC Bazaar (bzr) backend."
:version "22.2"
:group 'vc)
(defcustom vc-bzr-program
(or (executable-find "bzr")
(executable-find "brz")
"bzr")
"Name of the bzr command (excluding any arguments)."
:type 'string
:version "29.1")
(defcustom vc-bzr-diff-switches nil
"String or list of strings specifying switches for bzr diff under VC.
If nil, use the value of `vc-diff-switches'. If t, use no switches."
:type '(choice (const :tag "Unspecified" nil)
(const :tag "None" t)
(string :tag "Argument String")
(repeat :tag "Argument List" :value ("") string)))
(defcustom vc-bzr-annotate-switches nil
"String or list of strings specifying switches for bzr annotate under VC.
If nil, use the value of `vc-annotate-switches'. If t, use no switches."
:type '(choice (const :tag "Unspecified" nil)
(const :tag "None" t)
(string :tag "Argument String")
(repeat :tag "Argument List" :value ("") string))
:version "25.1")
(defcustom vc-bzr-log-switches nil
"String or list of strings specifying switches for bzr log under VC."
:type '(choice (const :tag "None" nil)
(string :tag "Argument String")
(repeat :tag "Argument List" :value ("") string)))
(defcustom vc-bzr-status-switches
(ignore-errors
(with-temp-buffer
(let ((process-environment (cons (format "BZR_LOG=%s" null-device)
process-environment)))
(call-process vc-bzr-program nil t nil "help" "status"))
(if (search-backward "--no-classify" nil t)
"--no-classify")))
"String or list of strings specifying switches for bzr status under VC.
The option \"--no-classify\" should be present if your bzr supports it."
:type '(choice (const :tag "None" nil)
(string :tag "Argument String")
(repeat :tag "Argument List" :value ("") string))
:version "24.1")
;; since v0.9, bzr supports removing the progress indicators
;; by setting environment variable BZR_PROGRESS_BAR to "none".
(defun vc-bzr-command (bzr-command buffer okstatus file-or-list &rest args)
"Wrapper round `vc-do-command' using `vc-bzr-program' as COMMAND.
Invoke the bzr command adding `BZR_PROGRESS_BAR=none' and
`LC_MESSAGES=C' to the environment. If BZR-COMMAND is \"status\",
prepends `vc-bzr-status-switches' to ARGS."
(let ((process-environment
`("BZR_PROGRESS_BAR=none" ; Suppress progress output (bzr >=0.9)
"LC_MESSAGES=C" ; Force English output
,@process-environment)))
(apply #'vc-do-command (or buffer "*vc*") okstatus vc-bzr-program
file-or-list bzr-command
(if (and (string-equal "status" bzr-command)
vc-bzr-status-switches)
(append (if (stringp vc-bzr-status-switches)
(list vc-bzr-status-switches)
vc-bzr-status-switches)
args)
args))))
(defun vc-bzr-async-command (bzr-command &rest args)
"Wrapper round `vc-do-async-command' using `vc-bzr-program' as COMMAND.
Invoke the bzr command adding `BZR_PROGRESS_BAR=none' and
`LC_MESSAGES=C' to the environment.
Use the current Bzr root directory as the ROOT argument to
`vc-do-async-command', and specify an output buffer named
\"*vc-bzr : ROOT*\". Return this buffer."
(let* ((process-environment
`("BZR_PROGRESS_BAR=none" "LC_MESSAGES=C"
,@process-environment))
(root (vc-bzr-root default-directory))
(buffer (format "*vc-bzr : %s*" (expand-file-name root))))
(apply #'vc-do-async-command buffer root
vc-bzr-program bzr-command args)
buffer))
;;;###autoload
(defconst vc-bzr-admin-dirname ".bzr"
"Name of the directory containing Bzr repository status files.")
;; Used in the autoloaded vc-bzr-registered; see below.
;;;###autoload
(defconst vc-bzr-admin-checkout-format-file
(concat vc-bzr-admin-dirname "/checkout/format")
"Name of the format file in a .bzr directory.")
(defconst vc-bzr-admin-dirstate
(concat vc-bzr-admin-dirname "/checkout/dirstate"))
(defconst vc-bzr-admin-branch-format-file
(concat vc-bzr-admin-dirname "/branch/format"))
(defconst vc-bzr-admin-revhistory
(concat vc-bzr-admin-dirname "/branch/revision-history"))
(defconst vc-bzr-admin-lastrev
(concat vc-bzr-admin-dirname "/branch/last-revision"))
(defconst vc-bzr-admin-branchconf
(concat vc-bzr-admin-dirname "/branch/branch.conf"))
(defun vc-bzr-root (file)
"Return the root directory of the bzr repository containing FILE."
;; Cache technique copied from vc-arch.el.
(or (vc-file-getprop file 'bzr-root)
(let ((root (vc-find-root file vc-bzr-admin-checkout-format-file)))
(when root (vc-file-setprop file 'bzr-root root)))))
(defun vc-bzr-branch-conf (file)
"Return the Bazaar branch settings for file FILE, as an alist.
Each element of the returned alist has the form (NAME . VALUE),
which are the name and value of a Bazaar setting, as strings.
The settings are read from the file \".bzr/branch/branch.conf\"
in the repository root directory of FILE."
(let (settings)
(with-temp-buffer
(insert-file-contents
(expand-file-name vc-bzr-admin-branchconf (vc-bzr-root file)))
(while (re-search-forward "^\\([^#=][^=]*?\\) *= *\\(.*\\)$" nil t)
(push (cons (match-string 1) (match-string 2)) settings)))
settings))
(defun vc-bzr-sha1 (file)
(with-temp-buffer
(set-buffer-multibyte nil)
(insert-file-contents-literally file)
(sha1 (current-buffer))))
(defun vc-bzr-state-heuristic (file)
"Like `vc-bzr-state' but hopefully without running Bzr."
;; `bzr status' could be slow with large histories and pending merges,
;; so this tries to avoid calling it if possible. bzr status is
;; faster now, so this is not as important as it was.
;;
;; This function tries first to parse Bzr internal file
;; `checkout/dirstate', but it may fail if Bzr internal file format
;; has changed. As a safeguard, the `checkout/dirstate' file is
;; only parsed if it contains the string `#bazaar dirstate flat
;; format 3' in the first line.
;; If the `checkout/dirstate' file cannot be parsed, fall back to
;; running `vc-bzr-state'."
;;
;; The format of the dirstate file is explained in bzrlib/dirstate.py
;; in the bzr distribution. Basically:
;; header-line giving the version of the file format in use.
;; a few lines of stuff
;; entries, one per line, with null-separated fields. Each line:
;; entry_key = dirname (may be empty), basename, file-id
;; current = common ( = kind, fingerprint, size, executable )
;; + working ( = packed_stat )
;; parent = common ( as above ) + history ( = rev_id )
;; kinds = (r)elocated, (a)bsent, (d)irectory, (f)ile, (l)ink
(let* ((root (vc-bzr-root file))
(dirstate (expand-file-name vc-bzr-admin-dirstate root)))
(when root ; Short cut.
(condition-case err
(with-temp-buffer
(insert-file-contents dirstate)
(goto-char (point-min))
(if (not (looking-at "#bazaar dirstate flat format 3"))
(vc-bzr-state file) ; Some other unknown format?
(let* ((relfile (file-relative-name file root))
(reldir (file-name-directory relfile)))
(cond
((not
(re-search-forward
(concat "^\0"
(if reldir (regexp-quote
(directory-file-name reldir)))
"\0"
(regexp-quote (file-name-nondirectory relfile))
"\0"
"[^\0]*\0" ;id?
"\\([^\0]*\\)\0" ;"a/f/d", a=removed?
"\\([^\0]*\\)\0" ;sha1 (empty if conflicted)?
"\\([^\0]*\\)\0" ;size?p
;; y/n. Whether or not the current copy
;; was executable the last time bzr checked?
"[^\0]*\0"
"[^\0]*\0" ;?
;; Parent information. Absent in a new repo.
"\\(?:\\([^\0]*\\)\0" ;"a/f/d" a=added?
"\\([^\0]*\\)\0" ;sha1 again?
"\\([^\0]*\\)\0" ;size again?
;; y/n. Whether or not the repo thinks
;; the file should be executable?
"\\([^\0]*\\)\0"
"[^\0]*\0\\)?" ;last revid?
;; There are more fields when merges are pending.
)
nil t))
'unregistered)
;; Apparently the second sha1 is the one we want: when
;; there's a conflict, the first sha1 is absent (and the
;; first size seems to correspond to the file with
;; conflict markers).
((eq (char-after (match-beginning 1)) ?a) 'removed)
;; If there is no parent, this must be a new repo.
;; If file is in dirstate, can only be added (b#8025).
((or (not (match-beginning 4))
(eq (char-after (match-beginning 4)) ?a))
'added)
((or (and (eql (string-to-number (match-string 3))
(file-attribute-size (file-attributes file)))
(equal (match-string 5)
(save-match-data (vc-bzr-sha1 file)))
;; For a file, does the executable state match?
;; (Bug#7544)
(or (not
(eq (char-after (match-beginning 1)) ?f))
(let ((exe
(memq
?x
(mapcar
#'identity
(file-attribute-modes
(file-attributes file))))))
(if (eq (char-after (match-beginning 7))
?y)
exe
(not exe)))))
(and
;; It looks like for lightweight
;; checkouts \2 is empty and we need to
;; look for size in \6.
(eq (match-beginning 2) (match-end 2))
(eql (string-to-number (match-string 6))
(file-attribute-size (file-attributes file)))
(equal (match-string 5)
(vc-bzr-sha1 file))))
'up-to-date)
(t 'edited)))))
;; The dirstate file can't be read, or some other problem.
(error
(message "Falling back on \"slow\" status detection (%S)" err)
(vc-bzr-state file))))))
;; This is a cheap approximation that is autoloaded. If it finds a
;; possible match it loads this file and runs the real function.
;; It requires vc-bzr-admin-checkout-format-file to be autoloaded too.
;;;###autoload (defun vc-bzr-registered (file)
;;;###autoload (if (vc-find-root file vc-bzr-admin-checkout-format-file)
;;;###autoload (progn
;;;###autoload (load "vc-bzr" nil t)
;;;###autoload (vc-bzr-registered file))))
(defun vc-bzr-registered (file)
"Return non-nil if FILE is registered with bzr."
(let ((state (vc-bzr-state-heuristic file)))
(not (memq state '(nil unregistered ignored)))))
(defconst vc-bzr-state-words
"added\\|ignored\\|kind changed\\|modified\\|removed\\|renamed\\|unknown"
"Regexp matching file status words as reported in `bzr' output.")
;; History of Bzr commands.
(defvar vc-bzr-history nil)
(defun vc-bzr-file-name-relative (filename)
"Return file name FILENAME stripped of the initial Bzr repository path."
(let* ((filename* (expand-file-name filename))
(rootdir (vc-bzr-root filename*)))
(when rootdir
(file-relative-name filename* rootdir))))
(defvar vc-bzr-error-regexp-alist
'(("^\\( M[* ]\\|\\+N \\|-D \\|\\| \\*\\|R[M ] \\) \\(.+\\)" 2 nil nil 1)
("^C \\(.+\\)" 2)
("^Text conflict in \\(.+\\)" 1 nil nil 2)
("^Using saved parent location: \\(.+\\)" 1 nil nil 0))
"Value of `compilation-error-regexp-alist' in *vc-bzr* buffers.")
;; To be called via vc-pull from vc.el, which requires vc-dispatcher.
(declare-function vc-exec-after "vc-dispatcher" (code &optional success))
(declare-function vc-set-async-update "vc-dispatcher" (process-buffer))
(declare-function vc-compilation-mode "vc-dispatcher" (backend))
(defun vc-bzr--pushpull (command prompt)
"Run COMMAND (a string; either push or pull) on the current Bzr branch.
If PROMPT is non-nil, prompt for the Bzr command to run."
(let* ((vc-bzr-program vc-bzr-program)
(branch-conf (vc-bzr-branch-conf default-directory))
;; Check whether the branch is bound.
(bound (assoc "bound" branch-conf))
(bound (and bound (equal "true" (downcase (cdr bound)))))
(has-loc (assoc (if (equal command "push")
"push_location"
"parent_location")
branch-conf))
args)
(when bound
(if (equal command "push")
(user-error "Cannot push a bound branch")
(setq command "update")))
;; If necessary, prompt for the exact command.
(when (or prompt (if (equal command "push")
(not has-loc)
(not (or bound has-loc))))
(setq args (split-string
(read-shell-command
(format "Bzr %s command: " command)
(format "%s %s" vc-bzr-program command)
'vc-bzr-history)
" " t))
(setq vc-bzr-program (car args)
command (cadr args)
args (cddr args)))
(require 'vc-dispatcher)
(let ((buf (apply #'vc-bzr-async-command command args)))
(with-current-buffer buf
(vc-run-delayed
(vc-compilation-mode 'bzr)
(setq-local compile-command
(concat vc-bzr-program " " command " "
(if args (mapconcat #'identity args " ") "")))))
(vc-set-async-update buf)
;; Return the process for `vc-pull-and-push'
(get-buffer-process buf))))
(defun vc-bzr-pull (prompt)
"Pull changes into the current Bzr branch.
Normally, this runs \"bzr pull\". However, if the branch is a
bound branch, run \"bzr update\" instead. If there is no default
location from which to pull or update, or if PROMPT is non-nil,
prompt for the Bzr command to run."
(vc-bzr--pushpull "pull" prompt))
(defun vc-bzr-push (prompt)
"Push changes from the current Bzr branch.
Normally, this runs \"bzr push\". If there is no push location,
or if PROMPT is non-nil, prompt for the Bzr command to run."
(vc-bzr--pushpull "push" prompt))
(defun vc-bzr-merge-branch ()
"Merge another Bzr branch into the current one.
Prompt for the Bzr command to run, providing a pre-defined merge
source (an upstream branch or a previous merge source) as a
default if it is available."
(let* ((branch-conf (vc-bzr-branch-conf default-directory))
;; "bzr merge" without an argument defaults to submit_branch,
;; then parent_location. Extract the specific location and
;; add it explicitly to the command line.
(setting nil)
(location
(cond
((setq setting (assoc "submit_branch" branch-conf))
(cdr setting))
((setq setting (assoc "parent_location" branch-conf))
(cdr setting))))
(cmd
(split-string
(read-shell-command
"Bzr merge command: "
(concat vc-bzr-program " merge --pull"
(if location (concat " " location) ""))
'vc-bzr-history)
" " t))
(vc-bzr-program (car cmd))
(command (cadr cmd))
(args (cddr cmd)))
(let ((buf (apply #'vc-bzr-async-command command args)))
(with-current-buffer buf (vc-run-delayed (vc-compilation-mode 'bzr)))
(vc-set-async-update buf))))
(defun vc-bzr-status (file)
"Return FILE status according to Bzr.
Return value is a cons (STATUS . WARNING), where WARNING is a
string or nil, and STATUS is one of the symbols: `added',
`ignored', `kindchanged', `modified', `removed', `renamed', `unknown',
which directly correspond to `bzr status' output, or `unchanged'
for files whose copy in the working tree is identical to the one
in the branch repository (or whose status not be determined)."
;; Doc used to also say the following, but AFAICS, it has never been true.
;;
;; ", or nil for files that are not registered with Bzr.
;; If any error occurred in running `bzr status', then return nil."
;;
;; Rather than returning nil in case of an error, it returns
;; (unchanged . WARNING). FIXME unchanged is not the best status to
;; return in case of error.
(with-temp-buffer
;; This is with-demoted-errors without the condition-case-unless-debug
;; annoyance, which makes it fail during ert testing.
(condition-case err (vc-bzr-command "status" t 0 file)
(error (message "Error: %S" err) nil))
(let ((status 'unchanged))
;; the only secure status indication in `bzr status' output
;; is a couple of lines following the pattern::
;; | <status>:
;; | <file name>
;; if the file is up-to-date, we get no status report from `bzr',
;; so if the regexp search for the above pattern fails, we consider
;; the file to be up-to-date.
(goto-char (point-min))
(when (re-search-forward
;; bzr prints paths relative to the repository root.
(concat "^\\(" vc-bzr-state-words "\\):[ \t\n]+"
(regexp-quote (vc-bzr-file-name-relative file))
;; Bzr appends a '/' to directory names and
;; '*' to executable files
(if (file-directory-p file) "/?" "\\*?")
"[ \t\n]*$")
nil t)
(let ((statusword (match-string 1)))
;; Erase the status text that matched.
(delete-region (match-beginning 0) (match-end 0))
(setq status
(intern (string-replace " " "" statusword)))))
(when status
(goto-char (point-min))
(skip-chars-forward " \n\t") ;Throw away spaces.
(cons status
;; "bzr" will output warnings and informational messages to
;; stderr; due to Emacs's `vc-do-command' (and, it seems,
;; `start-process' itself) limitations, we cannot catch stderr
;; and stdout into different buffers. So, if there's anything
;; left in the buffer after removing the above status
;; keywords, let us just presume that any other message from
;; "bzr" is a user warning, and display it.
(unless (eobp) (buffer-substring (point) (point-max))))))))
(defun vc-bzr-state (file)
(let ((result (vc-bzr-status file)))
(when (consp result)
(let ((warnings (cdr result)))
(when warnings
;; bzr 2.3.0 returns info about shelves, which is not really a warning
(when (string-match "[0-9]+ shel\\(f\\|ves\\) exists?\\..*?\n" warnings)
(setq warnings (replace-match "" nil nil warnings)))
(unless (string= warnings "")
(message "Warnings in `bzr' output: %s" warnings))))
(cdr (assq (car result)
'((added . added)
(kindchanged . edited)
(renamed . edited)
(modified . edited)
(removed . removed)
(ignored . ignored)
(unknown . unregistered)
(unchanged . up-to-date)))))))
(defun vc-bzr-resolve-when-done ()
"Call \"bzr resolve\" if the conflict markers have been removed."
(save-excursion
(goto-char (point-min))
(unless (re-search-forward "^<<<<<<< " nil t)
(vc-bzr-command "resolve" nil 0 buffer-file-name)
;; Remove the hook so that it is not called multiple times.
(remove-hook 'after-save-hook #'vc-bzr-resolve-when-done t))))
(defun vc-bzr-find-file-hook ()
(when (and buffer-file-name
;; FIXME: We should check that "bzr status" says "conflict".
(file-exists-p (concat buffer-file-name ".BASE"))
(file-exists-p (concat buffer-file-name ".OTHER"))
(file-exists-p (concat buffer-file-name ".THIS"))
;; If "bzr status" says there's a conflict but there are no
;; conflict markers, it's not clear what we should do.
(save-excursion
(goto-char (point-min))
(re-search-forward "^<<<<<<< " nil t)))
;; TODO: the merge algorithm used in `bzr merge' is nicely configurable,
;; but the one in `bzr pull' isn't, so it would be good to provide an
;; elisp function to remerge from the .BASE/OTHER/THIS files.
(smerge-start-session)
(add-hook 'after-save-hook #'vc-bzr-resolve-when-done nil t)
(vc-message-unresolved-conflicts buffer-file-name)))
(defun vc-bzr-clone (remote directory rev)
(if rev
(vc-bzr-command nil 0 '() "branch" "-r" rev remote directory)
(vc-bzr-command nil 0 '() "branch" remote directory))
directory)
(defun vc-bzr-version-dirstate (dir)
"Try to return as a string the bzr revision ID of directory DIR.
This uses the dirstate file's parent revision entry.
Returns nil if unable to find this information."
(let ((file (expand-file-name ".bzr/checkout/dirstate" dir)))
(when (file-readable-p file)
(with-temp-buffer
(insert-file-contents file)
(and (looking-at "#bazaar dirstate flat format 3")
(forward-line 3)
(looking-at "[0-9]+\0\\([^\0\n]+\\)\0")
(match-string 1))))))
(defun vc-bzr-working-revision (file)
(let* ((rootdir (vc-bzr-root file))
(branch-format-file (expand-file-name vc-bzr-admin-branch-format-file
rootdir))
(revhistory-file (expand-file-name vc-bzr-admin-revhistory rootdir))
(lastrev-file (expand-file-name vc-bzr-admin-lastrev rootdir)))
;; This looks at internal files to avoid forking a bzr process.
;; May break if they change their format.
(if (and (file-exists-p branch-format-file)
;; For lightweight checkouts (obtained with bzr co --lightweight)
;; the branch-format-file does not contain the revision
;; information, we need to look up the branch-format-file
;; in the place where the lightweight checkout comes
;; from. We only do that if it's a local file.
(let ((location-fname (expand-file-name
(concat vc-bzr-admin-dirname
"/branch/location") rootdir)))
;; The existence of this file is how we distinguish
;; lightweight checkouts.
(if (file-exists-p location-fname)
(with-temp-buffer
(insert-file-contents location-fname)
;; If the lightweight checkout points to a
;; location in the local file system, then we can
;; look there for the version information.
(when (re-search-forward "file://\\(.+\\)" nil t)
(let ((l-c-parent-dir (match-string 1)))
(when (and (memq system-type '(ms-dos windows-nt))
(string-match-p "^/[[:alpha:]]:"
l-c-parent-dir))
;;; The non-Windows code takes a shortcut by using
;;; the host/path separator slash as the start of
;;; the absolute path. That does not work on
;;; Windows, so we must remove it (bug#5345)
(setq l-c-parent-dir (substring l-c-parent-dir 1)))
(setq branch-format-file
(expand-file-name vc-bzr-admin-branch-format-file
l-c-parent-dir))
(setq lastrev-file
(expand-file-name vc-bzr-admin-lastrev
l-c-parent-dir))
;; FIXME: maybe it's overkill to check if both these
;; files exist.
(and (file-exists-p branch-format-file)
(file-exists-p lastrev-file)
(equal (vc-bzr-version-dirstate l-c-parent-dir)
(vc-bzr-version-dirstate rootdir))))))
t)))
(with-temp-buffer
(insert-file-contents branch-format-file)
(goto-char (point-min))
(cond
((or
(looking-at "Bazaar-NG branch, format 0.0.4")
(looking-at "Bazaar-NG branch format 5"))
;; count lines in .bzr/branch/revision-history
(insert-file-contents revhistory-file)
(number-to-string (count-lines (line-end-position) (point-max))))
((or
(looking-at "Bazaar Branch Format 6 (bzr 0.15)")
(looking-at "Bazaar Branch Format 7 (needs bzr 1.6)"))
;; revno is the first number in .bzr/branch/last-revision
(insert-file-contents lastrev-file)
(when (re-search-forward "[0-9]+" nil t)
(buffer-substring (match-beginning 0) (match-end 0))))))
;; Fallback to calling "bzr revno --tree".
;; The "--tree" matters for lightweight checkouts not on the same
;; revision as the parent.
(let* ((result (vc-bzr-command-discarding-stderr
vc-bzr-program "revno" "--tree"
(file-relative-name file)))
(exitcode (car result))
(output (cdr result)))
(cond
((and (eq exitcode 0) (not (zerop (length output))))
(substring output 0 -1))
(t nil))))))
(defun vc-bzr-create-repo ()
"Create a new Bzr repository."
(vc-bzr-command "init" nil 0 nil))
(defun vc-bzr-previous-revision (_file rev)
(if (string-match "\\`[0-9]+\\'" rev)
(number-to-string (1- (string-to-number rev)))
(concat "before:" rev)))
(defun vc-bzr-next-revision (_file rev)
(if (string-match "\\`[0-9]+\\'" rev)
(number-to-string (1+ (string-to-number rev)))
(error "Don't know how to compute the next revision of %s" rev)))
(defun vc-bzr-register (files &optional _comment)
"Register FILES under bzr. COMMENT is ignored."
(vc-bzr-command "add" nil 0 files))
;; Could run `bzr status' in the directory and see if it succeeds, but
;; that's relatively expensive.
(defalias 'vc-bzr-responsible-p #'vc-bzr-root
"Return the directory if FILE is (potentially) controlled by bzr.
The criterion is that there is a `.bzr' directory in the same
or a superior directory.")
(defun vc-bzr-unregister (file)
"Unregister FILE from bzr."
(vc-bzr-command "remove" nil 0 file "--keep"))
(declare-function log-edit-extract-headers "log-edit" (headers string))
(defun vc-bzr--sanitize-header (arg)
;; Newlines in --fixes (and probably other fields as well) trigger a nasty
;; Bazaar bug; see https://bugs.launchpad.net/bzr/+bug/1094180.
(lambda (str) (list arg
(replace-regexp-in-string "\\`[ \t]+\\|[ \t]+\\'"
"" (replace-regexp-in-string
"\n[ \t]?" " " str)))))
(defun vc-bzr-checkin (files comment &optional _rev)
"Check FILES in to bzr with log message COMMENT."
(apply #'vc-bzr-command "commit" nil 0 files
(cons "-m" (log-edit-extract-headers
`(("Author" . ,(vc-bzr--sanitize-header "--author"))
("Date" . ,(vc-bzr--sanitize-header "--commit-time"))
("Fixes" . ,(vc-bzr--sanitize-header "--fixes")))
comment))))
(defun vc-bzr-find-revision (file rev buffer)
"Fetch revision REV of file FILE and put it into BUFFER."
(with-current-buffer buffer
(if (and rev (stringp rev) (not (string= rev "")))
(vc-bzr-command "cat" t 0 file "-r" rev)
(vc-bzr-command "cat" t 0 file))))
(defun vc-bzr-find-ignore-file (file)
"Return the root directory of the repository of FILE."
(expand-file-name ".bzrignore"
(vc-bzr-root file)))
(defun vc-bzr-checkout (_file &optional rev)
(if rev (error "Operation not supported")
;; Else, there's nothing to do.
nil))
(defun vc-bzr-revert (file &optional contents-done)
(unless contents-done
(with-temp-buffer (vc-bzr-command "revert" t 0 file "--no-backup"))))
(defvar log-view-message-re)
(defvar log-view-file-re)
(defvar log-view-font-lock-keywords)
(defvar log-view-per-file-logs)
(defvar log-view-expanded-log-entry-function)
(define-derived-mode vc-bzr-log-view-mode log-view-mode "Bzr-Log-View"
(remove-hook 'log-view-mode-hook #'vc-bzr-log-view-mode) ;Deactivate the hack.
(require 'add-log)
(setq-local log-view-per-file-logs nil)
(setq-local log-view-file-re regexp-unmatchable)
(setq-local log-view-message-re
(if (eq vc-log-view-type 'short)
"^ *\\([0-9.]+\\): \\(.*?\\)[ \t]+\\([0-9]\\{4\\}-[0-9]\\{2\\}-[0-9]\\{2\\}\\)\\( \\[merge\\]\\)?"
"^ *\\(?:revno: \\([0-9.]+\\)\\|merged: .+\\)"))
;; Allow expanding short log entries
(when (eq vc-log-view-type 'short)
(setq truncate-lines t)
(setq-local log-view-expanded-log-entry-function
'vc-bzr-expanded-log-entry))
(setq-local log-view-font-lock-keywords
;; log-view-font-lock-keywords is careful to use the buffer-local
;; value of log-view-message-re only since Emacs-23.
(if (eq vc-log-view-type 'short)
(append `((,log-view-message-re
(1 'log-view-message)
(2 'change-log-name)
(3 'change-log-date)
(4 'change-log-list nil lax))))
(append `((,log-view-message-re . 'log-view-message))
;; log-view-font-lock-keywords
'(("^ *\\(?:committer\\|author\\): \
\\([^<(]+?\\)[ ]*[(<]\\([[:alnum:]_.+-]+@[[:alnum:]_.-]+\\)[>)]"
(1 'change-log-name)
(2 'change-log-email))
("^ *timestamp: \\(.*\\)" (1 'change-log-date)))))))
(autoload 'vc-setup-buffer "vc-dispatcher")
(defun vc-bzr-print-log (files buffer &optional shortlog start-revision limit)
"Print commit log associated with FILES into specified BUFFER.
If SHORTLOG is non-nil, use --line format.
If START-REVISION is non-nil, it is the newest revision to show.
If LIMIT is non-nil, show no more than this many entries."
;; `vc-do-command' creates the buffer, but we need it before running
;; the command.
(vc-setup-buffer buffer)
;; If the buffer exists from a previous invocation it might be
;; read-only.
;; FIXME: `vc-bzr-command' runs `bzr log' with `LC_MESSAGES=C', so
;; the log display may not what the user wants - but I see no other
;; way of getting the above regexps working.
(with-current-buffer buffer
(apply #'vc-bzr-command "log" buffer 'async files
(append
(if shortlog '("--line") '("--long"))
;; The extra complications here when start-revision and limit
;; are set are due to bzr log's --forward argument, which
;; could be enabled via an alias in bazaar.conf.
;; Svn, for example, does not have this problem, because
;; it doesn't have --forward. Instead, you can use
;; svn --log -r HEAD:0 or -r 0:HEAD as you prefer.
;; Bzr, however, insists in -r X..Y that X come before Y.
(if start-revision
(list (format
(if (and limit (= limit 1))
;; This means we don't have to use --no-aliases.
;; Is -c any different to -r in this case?
"-r%s"
"-r..%s")
start-revision)))
(if (eq vc-log-view-type 'with-diff) (list "-p"))
(when limit (list "-l" (format "%s" limit)))
;; There is no sensible way to combine --limit and --forward,
;; and it breaks the meaning of START-REVISION as the
;; _newest_ revision. See bug#14168.
;; Eg bzr log --forward -r ..100 --limit 50 prints
;; revisions 1-50 rather than 50-100. There
;; seems no way in general to get bzr to print revisions
;; 50-100 in --forward order in that case.
;; FIXME There may be other alias stuff we want to keep.
;; Is there a way to just suppress --forward?
;; As of 2013/4 the only caller uses limit = 1, so it does
;; not matter much.
(and start-revision limit (> limit 1) '("--no-aliases"))
(if (stringp vc-bzr-log-switches)
(list vc-bzr-log-switches)
vc-bzr-log-switches)))))
(defun vc-bzr-expanded-log-entry (revision)
(with-temp-buffer
(apply #'vc-bzr-command "log" t nil nil
(append
(list "--long" (format "-r%s" revision))
(if (stringp vc-bzr-log-switches)
(list vc-bzr-log-switches)
vc-bzr-log-switches)))
(goto-char (point-min))
(when (looking-at "^-+\n")
;; Indent the expanded log entry.
(indent-region (match-end 0) (point-max) 2)
(buffer-substring (match-end 0) (point-max)))))
(defun vc-bzr-log-incoming (buffer remote-location)
(apply #'vc-bzr-command "missing" buffer 'async nil
(list "--theirs-only" (unless (string= remote-location "") remote-location))))
(defun vc-bzr-log-outgoing (buffer remote-location)
(apply #'vc-bzr-command "missing" buffer 'async nil
(list "--mine-only" (unless (string= remote-location "") remote-location))))
(defun vc-bzr-show-log-entry (revision)
"Find entry for patch name REVISION in bzr change log buffer."
(goto-char (point-min))
(when revision
(let (case-fold-search
found)
(if (re-search-forward
;; "revno:" can appear either at the beginning of a line,
;; or indented.
(concat "^[ ]*-+\n[ ]*revno: "
;; The revision can contain ".", quote it so that it
;; does not interfere with regexp matching.
(regexp-quote revision) "$") nil t)
(progn
(beginning-of-line 0)
(setq found t))
(goto-char (point-min)))
found)))
(autoload 'vc-switches "vc")
(defun vc-bzr-diff (files &optional rev1 rev2 buffer async)
"VC bzr backend for diff."
(let* ((switches (vc-switches 'bzr 'diff))
(args
(append
;; Only add --diff-options if there are any diff switches.
(unless (zerop (length switches))
(list "--diff-options" (mapconcat #'identity switches " ")))
;; This `when' is just an optimization because bzr-1.2 is *much*
;; faster when the revision argument is not given.
(when (or rev1 rev2)
(list "-r" (format "%s..%s"
(or rev1 "revno:-1")
(or rev2 "")))))))
;; `bzr diff' exits with code 1 if diff is non-empty.
(apply #'vc-bzr-command "diff" (or buffer "*vc-diff*")
(if async 1 'async) files
args)))
;; FIXME: vc-{next,previous}-revision need fixing in vc.el to deal with
;; straight integer revisions.
(defun vc-bzr-delete-file (file)
"Delete FILE and delete it in the bzr repository."
(condition-case ()
(delete-file file)
(file-error nil))
(vc-bzr-command "remove" nil 0 file))
(defun vc-bzr-rename-file (old new)
"Rename file from OLD to NEW using `bzr mv'."
(setq old (expand-file-name old))
(setq new (expand-file-name new))
(vc-bzr-command "mv" nil 0 new old)
(message "Renamed %s => %s" old new))
(defvar-local vc-bzr-annotation-table nil
"Internal use.")
(defun vc-bzr-annotate-command (file buffer &optional revision)
"Prepare BUFFER for `vc-annotate' on FILE.
Each line is tagged with the revision number, which has a `help-echo'
property containing author and date information."
(apply #'vc-bzr-command "annotate" buffer 'async file "--long" "--all"
(append (vc-switches 'bzr 'annotate)
(if revision (list "-r" revision)))))
(declare-function vc-annotate-convert-time "vc-annotate" (&optional time))
(defun vc-bzr-annotate-time ()
(when (re-search-forward "^[0-9.]+ +[^\n ]* +\\([0-9]\\{8\\}\\) |" nil t)
(let ((str (match-string-no-properties 1)))
(vc-annotate-convert-time
(encode-time 0 0 0
(string-to-number (substring str 6 8))
(string-to-number (substring str 4 6))
(string-to-number (substring str 0 4)))))))
(defun vc-bzr-annotate-extract-revision-at-line ()
"Return revision for current line of annotation buffer, or nil.
Return nil if current line isn't annotated."
(save-excursion
(beginning-of-line)
(if (looking-at "^\\([0-9.]+\\) +[^\n ]* +\\([0-9]\\{8\\}\\) |")
(match-string-no-properties 1))))
(defun vc-bzr-command-discarding-stderr (command &rest args)
"Execute shell command COMMAND (with ARGS); return its output and exitcode.
Return value is a cons (EXITCODE . OUTPUT), where EXITCODE is
the (numerical) exit code of the process, and OUTPUT is a string
containing whatever the process sent to its standard output
stream. Standard error output is discarded."
(with-temp-buffer
(cons
(apply #'process-file command nil (list (current-buffer) nil) nil args)
(buffer-substring (point-min) (point-max)))))
(cl-defstruct (vc-bzr-extra-fileinfo
(:copier nil)
(:constructor vc-bzr-create-extra-fileinfo (extra-name))
(:conc-name vc-bzr-extra-fileinfo->))
extra-name) ;; original name for rename targets, new name for
(declare-function vc-default-dir-printer "vc-dir" (backend fileentry))
(defun vc-bzr-dir-printer (info)
"Pretty-printer for the vc-dir-fileinfo structure."
(let ((extra (vc-dir-fileinfo->extra info)))
(vc-default-dir-printer 'Bzr info)
(when extra
(insert (propertize
(format " (renamed from %s)"
(vc-bzr-extra-fileinfo->extra-name extra))
'face 'font-lock-comment-face)))))
;; FIXME: this needs testing, it's probably incomplete.
(defun vc-bzr-after-dir-status (update-function relative-dir)
(let ((status-str nil)
(translation '(("+N " . added)
("-D " . removed)
(" M " . edited) ;; file text modified
(" *" . edited) ;; execute bit changed
(" M*" . edited) ;; text modified + execute bit changed
("I " . ignored)
(" D " . missing)
;; For conflicts, should we list the .THIS/.BASE/.OTHER?
("C " . conflict)
("? " . unregistered)
;; No such state, but we need to distinguish this case.
("R " . renamed)
("RM " . renamed)
;; For a non existent file FOO, the output is:
;; bzr: ERROR: Path(s) do not exist: FOO
("bzr" . not-found)
;; If the tree is not up to date, bzr will print this warning:
;; working tree is out of date, run 'bzr update'
;; ignore it.
;; FIXME: maybe this warning can be put in the vc-dir header...
("wor" . not-found)
;; Ignore "P " and "P." for pending patches.
("P " . not-found)
("P. " . not-found)
))
(translated nil)
(result nil))
(goto-char (point-min))
;; Skip a warning message that can occur in some bzr installations.
;; vc-bzr-dir-extra-headers already reports it.
;; Perhaps we should just discard stderr?
(and (looking-at "bzr: WARNING: bzrlib version doesn't match")
(re-search-forward "^bzr is version" nil t)
(forward-line 1))
(while (not (eobp))
;; Bzr 2.3.0 added this if there are shelves. (Bug#8170)
(unless (looking-at "[0-9]+ shel\\(f\\|ves\\) exists?\\.")
(setq status-str
(buffer-substring-no-properties (point) (+ (point) 3)))
(setq translated (cdr (assoc status-str translation)))
(cond
((eq translated 'conflict)
;; For conflicts the file appears twice in the listing: once
;; with the M flag and once with the C flag, so take care
;; not to add it twice to `result'. Ugly.
(let* ((file
(buffer-substring-no-properties
;;For files with conflicts the format is:
;;C Text conflict in FILENAME
;; Bah.
(+ (point) 21) (line-end-position)))
(entry (assoc file result)))
(when entry
(setf (nth 1 entry) 'conflict))))
((eq translated 'renamed)
(re-search-forward "R[ M] \\(.*\\) => \\(.*\\)$" (line-end-position) t)
(let ((new-name (file-relative-name (match-string 2) relative-dir))
(old-name (file-relative-name (match-string 1) relative-dir)))
(push (list new-name 'edited
(vc-bzr-create-extra-fileinfo old-name)) result)))
;; do nothing for non existent files
((eq translated 'not-found))
(t
(push (list (file-relative-name
(buffer-substring-no-properties
(+ (point) 4)
(line-end-position)) relative-dir)
translated) result))))
(forward-line))
(funcall update-function result)))
(defun vc-bzr-dir-status-files (dir files update-function)
"Return a list of conses (file . state) for DIR."
(apply #'vc-bzr-command "status" (current-buffer) 'async dir "-v" "-S" files)
(vc-run-delayed
(vc-bzr-after-dir-status update-function
;; "bzr status" results are relative to
;; the bzr root directory, NOT to the
;; directory "bzr status" was invoked in.
;; Ugh.
;; We pass the relative directory here so
;; that `vc-bzr-after-dir-status' can
;; frob the results accordingly.
(file-relative-name dir (vc-bzr-root dir)))))
(defvar-keymap vc-bzr-shelve-map
;; Turn off vc-dir marking
"<mouse-2>" #'ignore
"<down-mouse-3>" #'vc-bzr-shelve-menu
"C-k" #'vc-bzr-shelve-delete-at-point
"=" #'vc-bzr-shelve-show-at-point
"RET" #'vc-bzr-shelve-show-at-point
"A" #'vc-bzr-shelve-apply-and-keep-at-point
"P" #'vc-bzr-shelve-apply-at-point
"S" #'vc-bzr-shelve-snapshot)
(defvar vc-bzr-shelve-menu-map
(let ((map (make-sparse-keymap "Bzr Shelve")))
(define-key map [de]
'(menu-item "Delete Shelf" vc-bzr-shelve-delete-at-point
:help "Delete the current shelf"))
(define-key map [ap]
'(menu-item "Apply and Keep Shelf" vc-bzr-shelve-apply-and-keep-at-point
:help "Apply the current shelf and keep it"))
(define-key map [po]
'(menu-item "Apply and Remove Shelf (Pop)" vc-bzr-shelve-apply-at-point
:help "Apply the current shelf and remove it"))
(define-key map [sh]
'(menu-item "Show Shelve" vc-bzr-shelve-show-at-point
:help "Show the contents of the current shelve"))
map))
(defvar vc-bzr-extra-menu-map
(let ((map (make-sparse-keymap)))
(define-key map [bzr-sn]
'(menu-item "Shelve a Snapshot" vc-bzr-shelve-snapshot
:help "Shelve the current state of the tree and keep the current state"))
(define-key map [bzr-sh]
'(menu-item "Shelve..." vc-bzr-shelve
:help "Shelve changes"))
map))
(defun vc-bzr-extra-menu () vc-bzr-extra-menu-map)
(defun vc-bzr-extra-status-menu () vc-bzr-extra-menu-map)
(defun vc-bzr-dir-extra-headers (dir)
(let*
((str (with-temp-buffer
(vc-bzr-command "info" t 0 dir)
(buffer-string)))
(shelve (vc-bzr-shelve-list))
(shelve-help-echo (substitute-command-keys
"Use \\[vc-bzr-shelve] to create shelves"))
(root-dir (vc-bzr-root dir))
(pending-merge
;; FIXME: looking for .bzr/checkout/merge-hashes is not a
;; reliable method to detect pending merges, disable this
;; until a proper solution is implemented.
(and nil
(file-exists-p
(expand-file-name ".bzr/checkout/merge-hashes" root-dir))))
(pending-merge-help-echo
(format "A merge has been performed.\nA commit from the top-level directory (%s)\nis required before being able to check in anything else" root-dir))
(light-checkout
(when (string-match ".+light checkout root: \\(.+\\)$" str)
(match-string 1 str)))
(light-checkout-branch
(when light-checkout
(when (string-match ".+checkout of branch: \\(.+\\)$" str)
(match-string 1 str)))))
(concat
(propertize "Parent branch : " 'face 'vc-dir-header)
(propertize
(if (string-match "parent branch: \\(.+\\)$" str)
(match-string 1 str)
"None")
'face 'vc-dir-header-value)
"\n"
(when light-checkout
(concat
(propertize "Light checkout root: " 'face 'vc-dir-header)
(propertize light-checkout 'face 'vc-dir-header-value)
"\n"))
(when light-checkout-branch
(concat
(propertize "Checkout of branch : " 'face 'vc-dir-header)
(propertize light-checkout-branch 'face 'vc-dir-header-value)
"\n"))
(when pending-merge
(concat
(propertize "Warning : " 'face 'vc-dir-status-warning
'help-echo pending-merge-help-echo)
(propertize "Pending merges, commit recommended before any other action"
'help-echo pending-merge-help-echo
'face 'vc-dir-status-warning)
"\n"))
(if shelve
(concat
(propertize "Shelves :\n" 'face 'vc-dir-header
'help-echo shelve-help-echo)
(mapconcat
(lambda (x)
(propertize x
'face 'vc-dir-header-value
'mouse-face 'highlight
'help-echo "mouse-3: Show shelve menu\nA: Apply and keep shelf\nP: Apply and remove shelf (pop)\nS: Snapshot to a shelf\nC-k: Delete shelf"
'keymap vc-bzr-shelve-map))
shelve "\n"))
(concat
(propertize "Shelves : " 'face 'vc-dir-header
'help-echo shelve-help-echo)
(propertize "No shelved changes"
'help-echo shelve-help-echo
'face 'vc-dir-header-value))))))
;; Follows vc-bzr-command, which uses vc-do-command from vc-dispatcher.
(declare-function vc-resynch-buffer "vc-dispatcher"
(file &optional keep noquery reset-vc-info))
(defun vc-bzr-shelve (name)
"Shelve the changes of the selected files."
(interactive "sShelf name: ")
(let ((root (vc-bzr-root default-directory))
(fileset (vc-deduce-fileset)))
(when root
(vc-bzr-command "shelve" nil 0 (nth 1 fileset) "--all" "-m" name)
(vc-resynch-buffer root t t))))
(defun vc-bzr-shelve-show (name)
"Show the contents of shelve NAME."
(interactive "sShelve name: ")
(vc-setup-buffer "*vc-diff*")
;; FIXME: how can you show the contents of a shelf?
(vc-bzr-command "unshelve" "*vc-diff*" 'async nil "--preview" name)
(set-buffer "*vc-diff*")
(diff-mode)
(setq buffer-read-only t)
(pop-to-buffer (current-buffer)))
(defun vc-bzr-shelve-apply (name)
"Apply shelve NAME and remove it afterwards."
(interactive "sApply (and remove) shelf: ")
(vc-bzr-command "unshelve" nil 0 nil "--apply" name)
(vc-resynch-buffer (vc-bzr-root default-directory) t t))
(defun vc-bzr-shelve-apply-and-keep (name)
"Apply shelve NAME and keep it afterwards."
(interactive "sApply (and keep) shelf: ")
(vc-bzr-command "unshelve" nil 0 nil "--apply" "--keep" name)
(vc-resynch-buffer (vc-bzr-root default-directory) t t))
(defun vc-bzr-shelve-snapshot ()
"Create a stash with the current tree state."
(interactive)
(vc-bzr-command "shelve" nil 0 nil "--all" "-m"
(format-time-string "Snapshot on %Y-%m-%d at %H:%M"))
(vc-bzr-command "unshelve" nil 0 nil "--apply" "--keep")
(vc-resynch-buffer (vc-bzr-root default-directory) t t))
(defun vc-bzr-shelve-list ()
(with-temp-buffer
(vc-bzr-command "shelve" (current-buffer) 1 nil "--list" "-q")
(delete
""
(split-string
(buffer-substring (point-min) (point-max))
"\n"))))
(defun vc-bzr-shelve-get-at-point (point)
(save-excursion
(goto-char point)
(beginning-of-line)
(if (looking-at "^ +\\([0-9]+\\):")
(match-string 1)
(error "Cannot find shelf at point"))))
;; vc-bzr-shelve-delete-at-point must be called from a vc-dir buffer.
(declare-function vc-dir-refresh "vc-dir" ())
(defun vc-bzr-shelve-delete-at-point ()
(interactive)
(let ((shelve (vc-bzr-shelve-get-at-point (point))))
(when (y-or-n-p (format "Remove shelf %s ? " shelve))
(vc-bzr-command "unshelve" nil 0 nil "--delete-only" shelve)
(vc-dir-refresh))))
(defun vc-bzr-shelve-show-at-point ()
(interactive)
(vc-bzr-shelve-show (vc-bzr-shelve-get-at-point (point))))
(defun vc-bzr-shelve-apply-at-point ()
(interactive)
(vc-bzr-shelve-apply (vc-bzr-shelve-get-at-point (point))))
(defun vc-bzr-shelve-apply-and-keep-at-point ()
(interactive)
(vc-bzr-shelve-apply-and-keep (vc-bzr-shelve-get-at-point (point))))
(defun vc-bzr-shelve-menu (e)
(interactive "e")
(vc-dir-at-event e (popup-menu vc-bzr-shelve-menu-map e)))
(defun vc-bzr-revision-table (files)
(let ((vc-bzr-revisions '())
(default-directory (file-name-directory (car files))))
(with-temp-buffer
(apply #'vc-bzr-command "log" t 0 files
(append '("--line")
(if (stringp vc-bzr-log-switches)
(list vc-bzr-log-switches)
vc-bzr-log-switches)))
(let ((start (point-min))
(loglines (buffer-substring-no-properties (point-min) (point-max))))
(while (string-match "^\\([0-9]+\\):" loglines)
(push (match-string 1 loglines) vc-bzr-revisions)
(setq start (+ start (match-end 0)))
(setq loglines (buffer-substring-no-properties start (point-max))))))
vc-bzr-revisions))
(defun vc-bzr-conflicted-files (dir)
(let ((default-directory (vc-bzr-root dir))
(files ()))
(with-temp-buffer
(vc-bzr-command "status" t 0 default-directory)
(goto-char (point-min))
(when (re-search-forward "^conflicts:\n" nil t)
(while (looking-at " \\(?:Text conflict in \\(.*\\)\\|.*\\)\n")
(if (match-end 1)
(push (expand-file-name (match-string 1)) files))
(goto-char (match-end 0)))))
files))
;;; Revision completion
(eval-and-compile
(defconst vc-bzr-revision-keywords
;; bzr help revisionspec | sed -ne 's/^\([a-z]*\):$/"\1"/p' | sort -u
'("ancestor" "annotate" "before" "branch" "date" "last" "mainline" "revid"
"revno" "submit" "tag")))
(defun vc-bzr-revision-completion-table (files)
;; What about using `files'?!? --Stef
(lambda (string pred action)
(cond
((string-match "\\`\\(ancestor\\|branch\\|\\(revno:\\)?[-0-9]+:\\):"
string)
(completion-table-with-context (substring string 0 (match-end 0))
(apply-partially
'completion-table-with-predicate
'completion-file-name-table
'file-directory-p t)
(substring string (match-end 0))
pred
action))
((string-match "\\`\\(before\\):" string)
(completion-table-with-context (substring string 0 (match-end 0))
(vc-bzr-revision-completion-table files)
(substring string (match-end 0))
pred
action))
((string-match "\\`\\(tag\\):" string)
(let ((prefix (substring string 0 (match-end 0)))
(tag (substring string (match-end 0)))
(table nil)
process-file-side-effects)
(with-temp-buffer
;; "bzr-1.2 tags" is much faster with --show-ids.
(process-file vc-bzr-program nil '(t) nil "tags" "--show-ids")
;; The output is ambiguous, unless we assume that revids do not
;; contain spaces.
(goto-char (point-min))
(while (re-search-forward "^\\(.*[^ \n]\\) +[^ \n]*$" nil t)
(push (match-string-no-properties 1) table)))
(completion-table-with-context prefix table tag pred action)))
((string-match "\\`annotate:" string)
(completion-table-with-context
(substring string 0 (match-end 0))
(apply-partially #'completion-table-with-terminator
(cons ":" regexp-unmatchable)
#'completion-file-name-table)
(substring string (match-end 0)) pred action))
((string-match "\\`date:" string)
(completion-table-with-context
(substring string 0 (match-end 0))
'("yesterday" "today" "tomorrow")
(substring string (match-end 0)) pred action))
((string-match "\\`\\([a-z]+\\):" string)
;; no actual completion for the remaining keywords.
(completion-table-with-context (substring string 0 (match-end 0))
(if (member (match-string 1 string)
vc-bzr-revision-keywords)
;; If it's a valid keyword,
;; use a non-empty table to
;; indicate it.
'("") nil)
(substring string (match-end 0))
pred
action))
(t
;; Could use completion-table-with-terminator, except that it
;; currently doesn't work right w.r.t pcm and doesn't give
;; the *Completions* output we want.
(complete-with-action action (eval-when-compile
(mapcar (lambda (s) (concat s ":"))
vc-bzr-revision-keywords))
string pred)))))
(defun vc-bzr-repository-url (file-or-dir &optional _remote-name)
(let ((default-directory (vc-bzr-root file-or-dir)))
(with-temp-buffer
(vc-bzr-command "info" (current-buffer) 0 nil)
(goto-char (point-min))
(if (re-search-forward "parent branch: \\(.*\\)$" nil t)
(match-string 1)
(error "Cannot determine Bzr repository URL")))))
(defun vc-bzr-prepare-patch (rev)
(with-current-buffer (generate-new-buffer " *vc-bzr-prepare-patch*")
(vc-bzr-command
"send" t 0 '()
"--revision" (concat (vc-bzr-previous-revision nil rev) ".." rev)
"--output" "-")
(let (subject)
;; Extract the subject line
(goto-char (point-min))
(search-forward-regexp "^[^#].*")
(setq subject (match-string 0))
;; Return the extracted data
(list :subject subject :buffer (current-buffer)))))
(provide 'vc-bzr)
;;; vc-bzr.el ends here
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