Hi,
An overdue "Thanks" for the feedback.
Here’s a new version.
Nicolas Goaziou <m...@nicolasgoaziou.fr> writes:
> Well, if you ask, I do not like much when some software tries to
> outsmart me (note that I like it even less when it actually succeeds).
> So, I think {{{modification-time}}} should expand to modification time.
New idea, an optional 2nd argument to modification-time. E.g.
{{{modification-time(%Y, vc)}}}
> If you think that is useful, then I vote for a different macro.
I prefer an argument as it gives a clear ranking: get the modified time
from vc, if possible (if the second argument is vc), otherwise get it from
the file system (also default behavior).
>> + (when (org-some 'identity
>> time)
>
> (cl-some #'identity time)
Is cl-lib OK now?!
Thanks,
Rasmus
--
... The proofs are technical in nature and provide no real understanding
>From 20f2268c7555c08e26654c77c0191012e176e059 Mon Sep 17 00:00:00 2001
From: Rasmus <ras...@gmx.us>
Date: Wed, 18 May 2016 11:23:46 +0200
Subject: [PATCH 1/3] org-macro.el: Allow modification-time from vc.el
* org-macro.el (org-macro--vc-modified-time): New function.
* org-macro.el (org-macro-initialize-templates): Add support for new
function.
* doc/org.texi (Macro replacement): Document new behavior.
* etc/ORG-NEWS: Mention new behavior.
---
doc/org.texi | 9 +++++----
etc/ORG-NEWS | 3 +++
lisp/org-macro.el | 32 +++++++++++++++++++++++++++++++-
3 files changed, 39 insertions(+), 5 deletions(-)
diff --git a/doc/org.texi b/doc/org.texi
index 0bfee39..f0fd8bb 100644
--- a/doc/org.texi
+++ b/doc/org.texi
@@ -10247,13 +10247,14 @@ argument to the @code{@{@{@{date@}@}@}} macro that will be used only if
understood by @code{format-time-string}.
@item @{@{@{time(@var{FORMAT})@}@}@}
-@itemx @{@{@{modification-time(@var{FORMAT})@}@}@}
+@itemx @{@{@{modification-time(@var{FORMAT}, @var{VC})@}@}@}
@cindex time, macro
@cindex modification time, macro
These macros refer to the date and time when the document is exported and to
-the modification date and time of the file being exported, respectively.
-@var{FORMAT} should be a format string understood by
-@code{format-time-string}.
+the modification date and time, respectively. @var{FORMAT} should be a
+format string understood by @code{format-time-string}. If the second
+argument to the @code{modification-time} macro is @samp{vc}, Org will try to
+find the modification time via version control (using @code{vc.el}).
@item @{@{@{input-file@}@}@}
@cindex input file, macro
diff --git a/etc/ORG-NEWS b/etc/ORG-NEWS
index 7a0a890..370963e 100644
--- a/etc/ORG-NEWS
+++ b/etc/ORG-NEWS
@@ -105,6 +105,9 @@ becomes
: ("pdf" . (lambda (file link) (foo)))
+*** The ~{{{modification-time}}}~ macro can obtain time via =vc=
+The modification time will be determined via =vc.el= if the second
+argument is =vc=. See the manual for details.
** New features
*** New org-protocol key=value syntax
diff --git a/lisp/org-macro.el b/lisp/org-macro.el
index e135374..d86aaee 100644
--- a/lisp/org-macro.el
+++ b/lisp/org-macro.el
@@ -58,6 +58,10 @@
(declare-function org-file-contents "org" (file &optional noerror))
(declare-function org-mode "org" ())
(declare-function org-remove-double-quotes "org" (s))
+(declare-function org-with-wide-buffer "org-macs" (&rest body))
+(declare-function vc-backend "vc-hooks" (f))
+(declare-function vc-call "vc-hooks" (&rest args))
+(declare-function vc-exec-after "vc-dispatcher" (code))
;;; Variables
@@ -145,11 +149,13 @@ function installs the following ones: \"property\",
(mapc update-templates
(list (cons "input-file" (file-name-nondirectory visited-file))
(cons "modification-time"
- (format "(eval (format-time-string \"$1\" '%s))"
+ (format "(eval (format-time-string \"$1\" (or (when (equal (org-trim (downcase \"$2\")) \"vc\") (org-macro--vc-modified-time %s)) '%s)))"
+ (prin1-to-string visited-file)
(prin1-to-string
(nth 5 (file-attributes visited-file)))))))))
(setq org-macro-templates templates)))
+
(defun org-macro-expand (macro templates)
"Return expanded MACRO, as a string.
MACRO is an object, obtained, for example, with
@@ -276,6 +282,30 @@ Return a list of arguments, as strings. This is the opposite of
s nil t)
"\000"))
+(defun org-macro--vc-modified-time (file)
+ (save-window-excursion
+ (when (vc-backend file)
+ (let ((buf (get-buffer-create " *org-vc*"))
+ (case-fold-search t)
+ date)
+ (unwind-protect
+ (progn
+ (vc-call print-log file buf nil nil 1)
+ (with-current-buffer buf
+ (vc-exec-after
+ (lambda ()
+ (goto-char (point-min))
+ (when (re-search-forward "Date:?[ \t]*" nil t)
+ (let ((time (parse-time-string
+ (buffer-substring
+ (point) (line-end-position)))))
+ (when (cl-some 'identity time)
+ (setq date (apply #'encode-time time))))))))
+ (let ((proc (get-buffer-process buf)))
+ (while (and proc (accept-process-output proc .5 nil t)))))
+ (kill-buffer buf))
+ date))))
+
(provide 'org-macro)
;;; org-macro.el ends here
--
2.8.2
