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[Emacs-diffs] /srv/bzr/emacs/trunk r103806: Use find -exec with '+' for
From: |
Glenn Morris |
Subject: |
[Emacs-diffs] /srv/bzr/emacs/trunk r103806: Use find -exec with '+' for grep-find if supported. |
Date: |
Sat, 02 Apr 2011 11:52:08 -0700 |
User-agent: |
Bazaar (2.0.3) |
------------------------------------------------------------
revno: 103806
committer: Glenn Morris <address@hidden>
branch nick: trunk
timestamp: Sat 2011-04-02 11:52:08 -0700
message:
Use find -exec with '+' for grep-find if supported.
* lisp/progmodes/grep.el (grep-find-use-xargs): Doc fix.
(grep-compute-defaults): Check for `-exec COMMAND +' support.
Set grep-find-use-xargs, grep-find-command, and grep-find-template
accordingly. Don't add the null-device if not needed.
modified:
lisp/ChangeLog
lisp/progmodes/grep.el
=== modified file 'lisp/ChangeLog'
--- a/lisp/ChangeLog 2011-04-02 18:12:21 +0000
+++ b/lisp/ChangeLog 2011-04-02 18:52:08 +0000
@@ -1,5 +1,10 @@
2011-04-02 Glenn Morris <address@hidden>
+ * progmodes/grep.el (grep-find-use-xargs): Doc fix.
+ (grep-compute-defaults): Check for `-exec COMMAND +' support.
+ Set grep-find-use-xargs, grep-find-command, and grep-find-template
+ accordingly. Don't add the null-device if not needed.
+
* files.el (save-some-buffers): Doc fix.
2011-04-02 Eli Zaretskii <address@hidden>
=== modified file 'lisp/progmodes/grep.el'
--- a/lisp/progmodes/grep.el 2011-03-03 06:39:11 +0000
+++ b/lisp/progmodes/grep.el 2011-04-02 18:52:08 +0000
@@ -440,10 +440,11 @@
;;;###autoload
(defvar grep-find-use-xargs nil
- "Non-nil means that `grep-find' uses the `xargs' utility by default.
-If `exec', use `find -exec'.
+ "How to invoke find and grep.
+If `exec', use `find -exec {} ;'.
+If `exec-plus' use `find -exec {} +'.
If `gnu', use `find -print0' and `xargs -0'.
-Any other non-nil value means to use `find -print' and `xargs'.
+Any other value means to use `find -print' and `xargs'.
This variable's value takes effect when `grep-compute-defaults' is called.")
@@ -561,6 +562,10 @@
(unless grep-find-use-xargs
(setq grep-find-use-xargs
(cond
+ ((grep-probe find-program
+ `(nil nil nil ,null-device "-exec" "echo"
+ "{}" "+"))
+ 'exec-plus)
((and
(grep-probe find-program `(nil nil nil ,null-device
"-print0"))
(grep-probe xargs-program `(nil nil nil "-0" "-e" "echo")))
@@ -575,13 +580,17 @@
;; forward slashes as directory separators.
(format "%s . -type f -print0 | \"%s\" -0 -e %s"
find-program xargs-program grep-command))
- ((eq grep-find-use-xargs 'exec)
+ ((memq grep-find-use-xargs '(exec exec-plus))
(let ((cmd0 (format "%s . -type f -exec %s"
- find-program grep-command)))
+ find-program grep-command))
+ (null (if grep-use-null-device
+ (format "%s " null-device)
+ "")))
(cons
- (format "%s {} %s %s"
- cmd0 null-device
- (shell-quote-argument ";"))
+ (if (eq grep-find-use-xargs 'exec-plus)
+ (format "%s %s{} +" cmd0 null)
+ (format "%s {} %s%s" cmd0 null
+ (shell-quote-argument ";")))
(1+ (length cmd0)))))
(t
(format "%s . -type f -print | \"%s\" %s"
@@ -589,14 +598,20 @@
(unless grep-find-template
(setq grep-find-template
(let ((gcmd (format "%s <C> %s <R>"
- grep-program grep-options)))
+ grep-program grep-options))
+ (null (if grep-use-null-device
+ (format "%s " null-device)
+ "")))
(cond ((eq grep-find-use-xargs 'gnu)
(format "%s . <X> -type f <F> -print0 | \"%s\" -0 -e
%s"
find-program xargs-program gcmd))
((eq grep-find-use-xargs 'exec)
- (format "%s . <X> -type f <F> -exec %s {} %s %s"
- find-program gcmd null-device
+ (format "%s . <X> -type f <F> -exec %s {} %s%s"
+ find-program gcmd null
(shell-quote-argument ";")))
+ ((eq grep-find-use-xargs 'exec-plus)
+ (format "%s . <X> -type f <F> -exec %s %s{} +"
+ find-program gcmd null))
(t
(format "%s . <X> -type f <F> -print | \"%s\" %s"
find-program xargs-program gcmd))))))))
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