(eval-when-compile
(require 'vc))
(defcustom vc-cvs-global-switches nil
"*Global switches to pass to any CVS command."
:type '(choice (const :tag "None" nil)
(string :tag "Argument String")
(repeat :tag "Argument List"
:value ("")
string))
:version "22.1"
:group 'vc)
(defcustom vc-cvs-register-switches nil
"*Extra switches for registering a file into CVS.
A string or list of strings passed to the checkin program by
\\[vc-register]."
:type '(choice (const :tag "None" nil)
(string :tag "Argument String")
(repeat :tag "Argument List"
:value ("")
string))
:version "21.1"
:group 'vc)
(defcustom vc-cvs-diff-switches nil
"*A string or list of strings specifying extra switches for cvs diff under VC."
:type '(choice (const :tag "None" nil)
(string :tag "Argument String")
(repeat :tag "Argument List"
:value ("")
string))
:version "21.1"
:group 'vc)
(defcustom vc-cvs-header (or (cdr (assoc 'CVS vc-header-alist)) '("\$Id\$"))
"*Header keywords to be inserted by `vc-insert-headers'."
:version "21.1"
:type '(repeat string)
:group 'vc)
(defcustom vc-cvs-use-edit t
"*Non-nil means to use `cvs edit' to \"check out\" a file.
This is only meaningful if you don't use the implicit checkout model
\(i.e. if you have $CVSREAD set)."
:type 'boolean
:version "21.1"
:group 'vc)
(defcustom vc-cvs-stay-local t
"*Non-nil means use local operations when possible for remote repositories.
This avoids slow queries over the network and instead uses heuristics
and past information to determine the current status of a file.
The value can also be a regular expression or list of regular
expressions to match against the host name of a repository; then VC
only stays local for hosts that match it. Alternatively, the value
can be a list of regular expressions where the first element is the
symbol `except'; then VC always stays local except for hosts matched
by these regular expressions."
:type '(choice (const :tag "Always stay local" t)
(const :tag "Don't stay local" nil)
(list :format "\nExamine hostname and %v" :tag "Examine hostname ..."
(set :format "%v" :inline t (const :format "%t" :tag "don't" except))
(regexp :format " stay local,\n%t: %v" :tag "if it matches")
(repeat :format "%v%i\n" :inline t (regexp :tag "or"))))
:version "21.1"
:group 'vc)
(defcustom vc-cvs-sticky-date-format-string "%c"
"*Format string for mode-line display of sticky date.
Format is according to `format-time-string'. Only used if
`vc-cvs-sticky-tag-display' is t."
:type '(string)
:version "22.1"
:group 'vc)
(defcustom vc-cvs-sticky-tag-display t
"*Specify the mode-line display of sticky tags.
Value t means default display, nil means no display at all. If the
value is a function or macro, it is called with the sticky tag and
its' type as parameters, in that order. TYPE can have three different
values: `symbolic-name' (TAG is a string), `revision-number' (TAG is a
string) and `date' (TAG is a date as returned by `encode-time'). The
return value of the function or macro will be displayed as a string.
Here's an example that will display the formatted date for sticky
dates and the word \"Sticky\" for sticky tag names and revisions.
(lambda (tag type)
(cond ((eq type 'date) (format-time-string
vc-cvs-sticky-date-format-string tag))
((eq type 'revision-number) \"Sticky\")
((eq type 'symbolic-name) \"Sticky\")))
Here's an example that will abbreviate to the first character only,
any text before the first occurrence of `-' for sticky symbolic tags.
If the sticky tag is a revision number, the word \"Sticky\" is
displayed. Date and time is displayed for sticky dates.
(lambda (tag type)
(cond ((eq type 'date) (format-time-string \"%Y%m%d %H:%M\" tag))
((eq type 'revision-number) \"Sticky\")
((eq type 'symbolic-name)
(condition-case nil
(progn
(string-match \"\\\\([^-]*\\\\)\\\\(.*\\\\)\" tag)
(concat (substring (match-string 1 tag) 0 1) \":\"
(substring (match-string 2 tag) 1 nil)))
(error tag))))) ; Fall-back to given tag name.
See also variable `vc-cvs-sticky-date-format-string'."
:type '(choice boolean function)
:version "22.1"
:group 'vc)
(defun vc-cvs-registered (file)
"Check if FILE is CVS registered."
(let ((dirname (or (file-name-directory file) ""))
(basename (file-name-nondirectory file))
(case-fold-search nil))
(if (file-readable-p (expand-file-name "CVS/Entries" dirname))
(with-temp-buffer
(vc-cvs-get-entries dirname)
(goto-char (point-min))
(cond
((re-search-forward
(concat "^/" (regexp-quote basename) "/[^/-]") nil t)
(beginning-of-line)
(vc-cvs-parse-entry file)
t)
(t nil)))
nil)))
(defun vc-cvs-state (file)
"CVS-specific version of `vc-state'."
(if (vc-stay-local-p file)
(let ((state (vc-file-getprop file 'vc-state)))
(if (memq state '(up-to-date edited nil))
(vc-cvs-state-heuristic file)
state))
(with-temp-buffer
(cd (file-name-directory file))
(vc-cvs-command t 0 file "status")
(vc-cvs-parse-status t))))
(defun vc-cvs-state-heuristic (file)
"CVS-specific state heuristic."
(let ((checkout-time (vc-file-getprop file 'vc-checkout-time))
(lastmod (nth 5 (file-attributes file))))
(if (equal checkout-time lastmod)
'up-to-date
'edited)))
(defun vc-cvs-dir-state (dir)
"Find the CVS state of all files in DIR."
(when (file-readable-p (expand-file-name "CVS/Entries" dir))
(if (vc-stay-local-p dir)
(vc-cvs-dir-state-heuristic dir)
(let ((default-directory dir))
(with-temp-buffer
(vc-cvs-command t 0 nil "status" "-l")
(goto-char (point-min))
(while (re-search-forward "^=+\n\\([^=\n].*\n\\|\n\\)+" nil t)
(narrow-to-region (match-beginning 0) (match-end 0))
(vc-cvs-parse-status)
(goto-char (point-max))
(widen)))))))
(defun vc-cvs-workfile-version (file)
"CVS-specific version of `vc-workfile-version'."
(vc-cvs-registered file)
(vc-file-getprop file 'vc-workfile-version))
(defun vc-cvs-checkout-model (file)
"CVS-specific version of `vc-checkout-model'."
(if (getenv "CVSREAD")
'announce
(let ((attrib (file-attributes file)))
(if (and attrib (string-match "r-..-..-." (nth 8 attrib)))
'announce
'implicit))))
(defun vc-cvs-mode-line-string (file)
"Return string for placement into the modeline for FILE.
Compared to the default implementation, this function does two things:
Handle the special case of a CVS file that is added but not yet
committed and support display of sticky tags."
(let ((sticky-tag (vc-file-getprop file 'vc-cvs-sticky-tag))
(string (if (string= (vc-workfile-version file) "0")
"CVS @@"
(vc-default-mode-line-string 'CVS file))))
(if (zerop (length sticky-tag))
string
(concat string "[" sticky-tag "]"))))
(defun vc-cvs-dired-state-info (file)
"CVS-specific version of `vc-dired-state-info'."
(let ((cvs-state (vc-state file)))
(cond ((eq cvs-state 'edited)
(if (equal (vc-workfile-version file) "0")
"(added)" "(modified)"))
((eq cvs-state 'needs-patch) "(patch)")
((eq cvs-state 'needs-merge) "(merge)"))))
(defun vc-cvs-register (file &optional rev comment)
"Register FILE into the CVS version-control system.
COMMENT can be used to provide an initial description of FILE.
`vc-register-switches' and `vc-cvs-register-switches' are passed to
the CVS command (in that order)."
(when (and (not (vc-cvs-responsible-p file))
(vc-cvs-could-register file))
(vc-cvs-register (directory-file-name (file-name-directory file))))
(apply 'vc-cvs-command nil 0 file
"add"
(and comment (string-match "[^\t\n ]" comment)
(concat "-m" comment))
(vc-switches 'CVS 'register)))
(defun vc-cvs-responsible-p (file)
"Return non-nil if CVS thinks it is responsible for FILE."
(file-directory-p (expand-file-name "CVS"
(if (file-directory-p file)
file
(file-name-directory file)))))
(defun vc-cvs-could-register (file)
"Return non-nil if FILE could be registered in CVS.
This is only possible if CVS is managing FILE's directory or one of
its parents."
(let ((dir file))
(while (and (stringp dir)
(not (equal dir (setq dir (file-name-directory dir))))
dir)
(setq dir (if (file-directory-p
(expand-file-name "CVS/Entries" dir))
t (directory-file-name dir))))
(eq dir t)))
(defun vc-cvs-checkin (file rev comment)
"CVS-specific version of `vc-backend-checkin'."
(unless (or (not rev) (vc-cvs-valid-version-number-p rev))
(if (not (vc-cvs-valid-symbolic-tag-name-p rev))
(error "%s is not a valid symbolic tag name" rev)
(apply 'vc-cvs-command nil 0 file "tag" "-b" (list rev))
(apply 'vc-cvs-command nil 0 file "update" "-r" (list rev))
(vc-file-setprop file 'vc-cvs-sticky-tag rev)))
(let ((status (apply 'vc-cvs-command nil 1 file
"ci" (if rev (concat "-r" rev))
(concat "-m" comment)
(vc-switches 'CVS 'checkin))))
(set-buffer "*vc*")
(goto-char (point-min))
(when (not (zerop status))
(cond
((re-search-forward "Up-to-date check failed" nil t)
(vc-file-setprop file 'vc-state 'needs-merge)
(error (substitute-command-keys
(concat "Up-to-date check failed: "
"type \\[vc-next-action] to merge in changes"))))
(t
(pop-to-buffer (current-buffer))
(goto-char (point-min))
(shrink-window-if-larger-than-buffer)
(error "Check-in failed"))))
(vc-file-setprop
file 'vc-workfile-version
(vc-parse-buffer "^\\(new\\|initial\\) revision: \\([0-9.]+\\)" 2))
(vc-file-setprop file 'vc-checkout-model nil)
(if (and rev (not (vc-cvs-valid-symbolic-tag-name-p rev)))
(vc-cvs-command nil 0 file "update" "-A"))))
(defun vc-cvs-find-version (file rev buffer)
(apply 'vc-cvs-command
buffer 0 file
"-Q" "update"
(and rev (not (string= rev ""))
(concat "-r" rev))
"-p"
(vc-switches 'CVS 'checkout)))
(defun vc-cvs-checkout (file &optional editable rev workfile)
"Retrieve a revision of FILE into a WORKFILE.
EDITABLE non-nil means that the file should be writable.
REV is the revision to check out into WORKFILE."
(let ((filename (or workfile file))
(file-buffer (get-file-buffer file))
switches)
(message "Checking out %s..." filename)
(save-excursion
(if file-buffer (set-buffer file-buffer))
(setq switches (vc-switches 'CVS 'checkout))
(let ((default-directory default-directory))
(save-excursion
(setq default-directory (file-name-directory filename))
(if workfile
(let ((failed t)
(backup-name (if (string= file workfile)
(car (find-backup-file-name filename)))))
(when backup-name
(copy-file filename backup-name
'ok-if-already-exists 'keep-date)
(unless (file-writable-p filename)
(set-file-modes filename
(logior (file-modes filename) 128))))
(unwind-protect
(progn
(let ((coding-system-for-read 'no-conversion)
(coding-system-for-write 'no-conversion))
(with-temp-file filename
(apply 'vc-cvs-command
(current-buffer) 0 file
"-Q" "update"
(and (stringp rev)
(not (string= rev ""))
(concat "-r" rev))
"-p"
switches)))
(setq failed nil))
(if failed
(if backup-name
(rename-file backup-name filename
'ok-if-already-exists)
(if (file-exists-p filename)
(delete-file filename)))
(and backup-name
(not vc-make-backup-files)
(delete-file backup-name)))))
(if (and (file-exists-p file) (not rev))
(and editable (not (eq (vc-cvs-checkout-model file) 'implicit))
(if vc-cvs-use-edit
(vc-cvs-command nil 0 file "edit")
(set-file-modes file (logior (file-modes file) 128))
(if file-buffer (toggle-read-only -1))))
(vc-file-setprop file 'vc-workfile-version nil)
(apply 'vc-cvs-command nil 0 file
(and editable
(or (not (file-exists-p file))
(not (eq (vc-cvs-checkout-model file)
'implicit)))
"-w")
"update"
(when rev
(unless (eq rev t)
(if (string= rev "")
"-A"
(concat "-r" rev))))
switches))))
(vc-mode-line file)
(message "Checking out %s...done" filename)))))
(defun vc-cvs-delete-file (file)
(vc-cvs-command nil 0 file "remove" "-f")
(vc-cvs-command nil 0 file "commit" "-mRemoved."))
(defun vc-cvs-revert (file &optional contents-done)
"Revert FILE to the version it was based on."
(unless contents-done
(vc-cvs-checkout file nil (vc-workfile-version file) file))
(unless (eq (vc-checkout-model file) 'implicit)
(if vc-cvs-use-edit
(vc-cvs-command nil 0 file "unedit")
(set-file-modes file (logand (file-modes file) 3950)))))
(defun vc-cvs-merge (file first-version &optional second-version)
"Merge changes into current working copy of FILE.
The changes are between FIRST-VERSION and SECOND-VERSION."
(vc-cvs-command nil 0 file
"update" "-kk"
(concat "-j" first-version)
(concat "-j" second-version))
(vc-file-setprop file 'vc-state 'edited)
(with-current-buffer (get-buffer "*vc*")
(goto-char (point-min))
(if (re-search-forward "conflicts during merge" nil t)
1 0)))
(defun vc-cvs-merge-news (file)
"Merge in any new changes made to FILE."
(message "Merging changes into %s..." file)
(vc-file-setprop file 'vc-checkout-time 0)
(vc-cvs-command nil 0 file "update")
(with-current-buffer (get-buffer "*vc*")
(goto-char (point-min))
(if (re-search-forward
"^Merging differences between [0-9.]* and \\([0-9.]*\\) into" nil t)
(vc-file-setprop file 'vc-workfile-version (match-string 1))
(vc-file-setprop file 'vc-workfile-version nil))
(prog1
(if (eq (buffer-size) 0)
0 (if (re-search-forward
(concat "^\\([CMUP] \\)?"
(regexp-quote (file-name-nondirectory file))
"\\( already contains the differences between \\)?")
nil t)
(cond
((or (match-string 2)
(string= (match-string 1) "U ")
(string= (match-string 1) "P "))
(vc-file-setprop file 'vc-state 'up-to-date)
(vc-file-setprop file 'vc-checkout-time
(nth 5 (file-attributes file)))
0) ((string= (match-string 1) "M ")
(vc-file-setprop file 'vc-state 'edited)
0) (t
(vc-file-setprop file 'vc-state 'edited)
1) )
(pop-to-buffer "*vc*")
(error "Couldn't analyze cvs update result")))
(message "Merging changes into %s...done" file))))
(defun vc-cvs-print-log (file &optional buffer)
"Get change log associated with FILE."
(vc-cvs-command
buffer
(if (and (vc-stay-local-p file) (fboundp 'start-process)) 'async 0)
file "log"))
(defun vc-cvs-diff (file &optional oldvers newvers buffer)
"Get a difference report using CVS between two versions of FILE."
(if (string= (vc-workfile-version file) "0")
(if (or oldvers newvers)
(error "No revisions of %s exist" file)
(apply 'vc-do-command (or buffer "*vc-diff*")
1 "diff" file
(append (vc-switches nil 'diff) '("/dev/null")))
1)
(let* ((async (and (not vc-disable-async-diff)
(vc-stay-local-p file)
(fboundp 'start-process)))
(status (apply 'vc-cvs-command (or buffer "*vc-diff*")
(if async 'async 1)
file "diff"
(and oldvers (concat "-r" oldvers))
(and newvers (concat "-r" newvers))
(vc-switches 'CVS 'diff))))
(if async 1 status))))
(defun vc-cvs-diff-tree (dir &optional rev1 rev2)
"Diff all files at and below DIR."
(with-current-buffer "*vc-diff*"
(setq default-directory dir)
(if (vc-stay-local-p dir)
(vc-file-tree-walk
dir
(lambda (f)
(vc-exec-after
`(let ((coding-system-for-read (vc-coding-system-for-diff ',f)))
(unless (vc-up-to-date-p ',f)
(message "Looking at %s" ',f)
(vc-diff-internal ',f ',rev1 ',rev2))))))
(let ((coding-system-for-read
(or coding-system-for-read 'undecided)))
(apply 'vc-cvs-command "*vc-diff*" 1 nil "diff"
(and rev1 (concat "-r" rev1))
(and rev2 (concat "-r" rev2))
(vc-switches 'CVS 'diff))))))
(defun vc-cvs-annotate-command (file buffer &optional version)
"Execute \"cvs annotate\" on FILE, inserting the contents in BUFFER.
Optional arg VERSION is a version to annotate from."
(vc-cvs-command buffer 0 file "annotate" (if version (concat "-r" version)))
(with-current-buffer buffer
(goto-char (point-min))
(re-search-forward "^[0-9]")
(delete-region (point-min) (1- (point)))))
(defun vc-cvs-annotate-current-time ()
"Return the current time, based at midnight of the current day, and
encoded as fractional days."
(vc-annotate-convert-time
(apply 'encode-time 0 0 0 (nthcdr 3 (decode-time (current-time))))))
(defun vc-cvs-annotate-time ()
"Return the time of the next annotation (as fraction of days)
systime, or nil if there is none."
(let* ((bol (point))
(cache (get-text-property bol 'vc-cvs-annotate-time))
buffer-read-only)
(cond
(cache)
((looking-at
"^\\S-+\\s-+\\S-+\\s-+\\([0-9]+\\)-\\(\\sw+\\)-\\([0-9]+\\)): ")
(let ((day (string-to-number (match-string 1)))
(month (cdr (assq (intern (match-string 2))
'((Jan . 1) (Feb . 2) (Mar . 3)
(Apr . 4) (May . 5) (Jun . 6)
(Jul . 7) (Aug . 8) (Sep . 9)
(Oct . 10) (Nov . 11) (Dec . 12)))))
(year (let ((tmp (string-to-number (match-string 3))))
(+ (cond ((> 69 tmp) 2000)
((> 100 tmp) 1900)
(t 0))
tmp))))
(put-text-property
bol (1+ bol) 'vc-cvs-annotate-time
(setq cache (cons
(match-end 0)
(vc-annotate-convert-time
(encode-time 0 0 0 day month year))))))))
(when cache
(goto-char (car cache)) (cdr cache))))
(defun vc-cvs-annotate-extract-revision-at-line ()
(save-excursion
(beginning-of-line)
(if (re-search-forward "^\\([0-9]+\\.[0-9]+\\(\\.[0-9]+\\)*\\) +("
(line-end-position) t)
(match-string-no-properties 1)
nil)))
(defun vc-cvs-create-snapshot (dir name branchp)
"Assign to DIR's current version a given NAME.
If BRANCHP is non-nil, the name is created as a branch (and the current
workspace is immediately moved to that new branch)."
(vc-cvs-command nil 0 dir "tag" "-c" (if branchp "-b") name)
(when branchp (vc-cvs-command nil 0 dir "update" "-r" name)))
(defun vc-cvs-retrieve-snapshot (dir name update)
"Retrieve a snapshot at and below DIR.
NAME is the name of the snapshot; if it is empty, do a `cvs update'.
If UPDATE is non-nil, then update (resynch) any affected buffers."
(with-current-buffer (get-buffer-create "*vc*")
(let ((default-directory dir)
(sticky-tag))
(erase-buffer)
(if (or (not name) (string= name ""))
(vc-cvs-command t 0 nil "update")
(vc-cvs-command t 0 nil "update" "-r" name)
(setq sticky-tag name))
(when update
(goto-char (point-min))
(while (not (eobp))
(if (looking-at "\\([CMUP]\\) \\(.*\\)")
(let* ((file (expand-file-name (match-string 2) dir))
(state (match-string 1))
(buffer (find-buffer-visiting file)))
(when buffer
(cond
((or (string= state "U")
(string= state "P"))
(vc-file-setprop file 'vc-state 'up-to-date)
(vc-file-setprop file 'vc-workfile-version nil)
(vc-file-setprop file 'vc-checkout-time
(nth 5 (file-attributes file))))
((or (string= state "M")
(string= state "C"))
(vc-file-setprop file 'vc-state 'edited)
(vc-file-setprop file 'vc-workfile-version nil)
(vc-file-setprop file 'vc-checkout-time 0)))
(vc-file-setprop file 'vc-cvs-sticky-tag sticky-tag)
(vc-resynch-buffer file t t))))
(forward-line 1))))))
(defalias 'vc-cvs-make-version-backups-p 'vc-stay-local-p
"Return non-nil if version backups should be made for FILE.")
(defun vc-cvs-check-headers ()
"Check if the current file has any headers in it."
(save-excursion
(goto-char (point-min))
(re-search-forward "\\$[A-Za-z\300-\326\330-\366\370-\377]+\
\\(: [\t -#%-\176\240-\377]*\\)?\\$" nil t)))
(defun vc-cvs-command (buffer okstatus file &rest flags)
"A wrapper around `vc-do-command' for use in vc-cvs.el.
The difference to vc-do-command is that this function always invokes `cvs',
and that it passes `vc-cvs-global-switches' to it before FLAGS."
(apply 'vc-do-command buffer okstatus "cvs" file
(if (stringp vc-cvs-global-switches)
(cons vc-cvs-global-switches flags)
(append vc-cvs-global-switches
flags))))
(defalias 'vc-cvs-stay-local-p 'vc-stay-local-p)
(defun vc-cvs-repository-hostname (dirname)
"Hostname of the CVS server associated to workarea DIRNAME."
(let ((rootname (expand-file-name "CVS/Root" dirname)))
(when (file-readable-p rootname)
(with-temp-buffer
(let ((coding-system-for-read
(or file-name-coding-system
default-file-name-coding-system)))
(vc-insert-file rootname))
(goto-char (point-min))
(nth 2 (vc-cvs-parse-root
(buffer-substring (point)
(line-end-position))))))))
(defun vc-cvs-parse-root (root)
"Split CVS ROOT specification string into a list of fields.
A CVS root specification of the form
[:METHOD:][[USER@]HOSTNAME:]/path/to/repository
is converted to a normalized record with the following structure:
\(METHOD USER HOSTNAME CVS-ROOT).
The default METHOD for a CVS root of the form
/path/to/repository
is `local'.
The default METHOD for a CVS root of the form
[USER@]HOSTNAME:/path/to/repository
is `ext'.
For an empty string, nil is returned (invalid CVS root)."
(let* ((root-list (cdr (split-string (concat "x:" root) ":")))
(len (length root-list))
(root-list
(cond
((= len 0)
nil)
((= len 1)
(cons "local"
(cons nil root-list)))
((= len 2)
(and (not (equal (car root-list) ""))
(cons "ext" root-list)))
((= len 3)
(cons (cadr root-list)
(cons nil (cddr root-list))))
(t
(cdr root-list)))))
(if root-list
(let ((method (car root-list))
(uhost (or (cadr root-list) ""))
(root (nth 2 root-list))
user host)
(if (string-match "\\(.*\\)@\\(.*\\)" uhost)
(setq user (match-string 1 uhost)
host (match-string 2 uhost))
(setq host uhost))
(and (equal host "")
(setq host))
(and host
(equal method "local")
(setq root (concat host ":" root) host))
(list method user host root)))))
(defun vc-cvs-parse-status (&optional full)
"Parse output of \"cvs status\" command in the current buffer.
Set file properties accordingly. Unless FULL is t, parse only
essential information."
(let (file status)
(goto-char (point-min))
(if (re-search-forward "^File: " nil t)
(cond
((looking-at "no file") nil)
((re-search-forward "\\=\\([^ \t]+\\)" nil t)
(setq file (expand-file-name (match-string 1)))
(vc-file-setprop file 'vc-backend 'CVS)
(if (not (re-search-forward "\\=[ \t]+Status: \\(.*\\)" nil t))
(setq status "Unknown")
(setq status (match-string 1)))
(if (and full
(re-search-forward
"\\(RCS Version\\|RCS Revision\\|Repository revision\\):\
\[\t ]+\\([0-9.]+\\)"
nil t))
(vc-file-setprop file 'vc-latest-version (match-string 2)))
(vc-file-setprop
file 'vc-state
(cond
((string-match "Up-to-date" status)
(vc-file-setprop file 'vc-checkout-time
(nth 5 (file-attributes file)))
'up-to-date)
((string-match "Locally Modified" status) 'edited)
((string-match "Needs Merge" status) 'needs-merge)
((string-match "Needs \\(Checkout\\|Patch\\)" status) 'needs-patch)
(t 'edited))))))))
(defun vc-cvs-dir-state-heuristic (dir)
"Find the CVS state of all files in DIR, using only local information."
(with-temp-buffer
(vc-cvs-get-entries dir)
(goto-char (point-min))
(while (not (eobp))
(when (looking-at "/\\([^/]*\\)/[^/-]")
(let ((file (expand-file-name (match-string 1) dir)))
(unless (vc-file-getprop file 'vc-state)
(vc-cvs-parse-entry file t))))
(forward-line 1))))
(defun vc-cvs-get-entries (dir)
"Insert the CVS/Entries file from below DIR into the current buffer.
This function ensures that the correct coding system is used for that,
which may not be the one that is used for the files' contents.
CVS/Entries should only be accessed through this function."
(let ((coding-system-for-read (or file-name-coding-system
default-file-name-coding-system)))
(vc-insert-file (expand-file-name "CVS/Entries" dir))))
(defun vc-cvs-valid-symbolic-tag-name-p (tag)
"Return non-nil if TAG is a valid symbolic tag name."
(and (string-match "^[a-zA-Z]" tag)
(not (string-match "[^a-z0-9A-Z-_]" tag))))
(defun vc-cvs-valid-version-number-p (tag)
"Return non-nil if TAG is a valid version number."
(and (string-match "^[0-9]" tag)
(not (string-match "[^0-9.]" tag))))
(defun vc-cvs-parse-sticky-tag (match-type match-tag)
"Parse and return the sticky tag as a string.
`match-data' is protected."
(let ((data (match-data))
(tag)
(type (cond ((string= match-type "D") 'date)
((string= match-type "T")
(if (vc-cvs-valid-symbolic-tag-name-p match-tag)
'symbolic-name
'revision-number))
(t nil))))
(unwind-protect
(progn
(cond
((eq type 'date)
(string-match
"\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)"
match-tag)
(let* ((year-tmp (string-to-number (match-string 1 match-tag)))
(month (string-to-number (match-string 2 match-tag)))
(day (string-to-number (match-string 3 match-tag)))
(hour (string-to-number (match-string 4 match-tag)))
(min (string-to-number (match-string 5 match-tag)))
(sec (string-to-number (match-string 6 match-tag)))
(year (+ (cond ((> 69 year-tmp) 2000)
((> 100 year-tmp) 1900)
(t 0))
year-tmp)))
(setq tag (encode-time sec min hour day month year))))
((eq type 'symbolic-name) (setq tag match-tag))
((eq type 'revision-number) (setq tag match-tag))
(t nil))
(cond ((eq vc-cvs-sticky-tag-display nil) nil)
((eq vc-cvs-sticky-tag-display t)
(cond ((eq type 'date) (format-time-string
vc-cvs-sticky-date-format-string
tag))
((eq type 'symbolic-name) tag)
((eq type 'revision-number) tag)
(t nil)))
((functionp vc-cvs-sticky-tag-display)
(funcall vc-cvs-sticky-tag-display tag type))
(t nil)))
(set-match-data data))))
(defun vc-cvs-parse-entry (file &optional set-state)
"Parse a line from CVS/Entries.
Compare modification time to that of the FILE, set file properties
accordingly. However, `vc-state' is set only if optional arg SET-STATE
is non-nil."
(cond
((looking-at "/[^/]+/0/")
(vc-file-setprop file 'vc-checkout-time 0)
(vc-file-setprop file 'vc-workfile-version "0")
(if set-state (vc-file-setprop file 'vc-state 'edited)))
((looking-at
(concat "/[^/]+"
"/\\([^/]*\\)"
"/\\([^/]*\\)/"
"\\([^/]*\\)/"
"\\(.\\|\\)" "\\(.*\\)")) (vc-file-setprop file 'vc-workfile-version (match-string 1))
(vc-file-setprop file 'vc-cvs-sticky-tag
(vc-cvs-parse-sticky-tag (match-string 4)
(match-string 5)))
(let ((mtime (nth 5 (file-attributes file))))
(require 'parse-time)
(let ((parsed-time
(parse-time-string (concat (match-string 2) " +0000"))))
(cond ((and (not (string-match "\\+" (match-string 2)))
(car parsed-time)
(equal mtime (apply 'encode-time parsed-time)))
(vc-file-setprop file 'vc-checkout-time mtime)
(if set-state (vc-file-setprop file 'vc-state 'up-to-date)))
(t
(vc-file-setprop file 'vc-checkout-time 0)
(if set-state (vc-file-setprop file 'vc-state 'edited)))))))))
(provide 'vc-cvs)