summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorTino Calancha <f92capac@gmail.com>2016-04-08 17:04:08 +0300
committerEli Zaretskii <eliz@gnu.org>2016-04-08 17:04:08 +0300
commitc4e6dd15244506bdf7b71559774979db0c7ea286 (patch)
tree9f1f6b0db9e4b5b36c35e7dffbcb22bbf0df4841
parentbadf7369a63e03a5f4f3817be10763611a6aa8a2 (diff)
downloademacs-c4e6dd15244506bdf7b71559774979db0c7ea286.tar.gz
Make 'dired-do-shell-command' wait for all background jobs
* lisp/dired-aux.el (dired-shell-stuff-it): Force POSIX shells to wait until all background jobs exit. (Bug#23206).
-rw-r--r--lisp/dired-aux.el31
1 files changed, 22 insertions, 9 deletions
diff --git a/lisp/dired-aux.el b/lisp/dired-aux.el
index 990bf6aa34c..bbb5693aa37 100644
--- a/lisp/dired-aux.el
+++ b/lisp/dired-aux.el
@@ -730,6 +730,7 @@ can be produced by `dired-get-marked-files', for example."
(command (if sequentially
(substring command 0 (match-beginning 0))
command))
+ (parallel-in-background (and in-background (not sequentially)))
(stuff-it
(if (or (string-match-p dired-star-subst-regexp command)
(string-match-p dired-quark-subst-regexp command))
@@ -741,15 +742,27 @@ can be produced by `dired-get-marked-files', for example."
retval))
(lambda (x) (concat command dired-mark-separator x)))))
(concat
- (if on-each
- (mapconcat stuff-it (mapcar 'shell-quote-argument file-list)
- (if (and in-background (not sequentially)) "&" ";"))
- (let ((files (mapconcat 'shell-quote-argument
- file-list dired-mark-separator)))
- (if (> (length file-list) 1)
- (setq files (concat dired-mark-prefix files dired-mark-postfix)))
- (funcall stuff-it files)))
- (if in-background "&" ""))))
+ (cond (on-each
+ (format "%s%s"
+ (mapconcat stuff-it (mapcar 'shell-quote-argument file-list)
+ (or (and parallel-in-background "&") ";"))
+ ;; POSIX shells running a list of commands in the background
+ ;; (LIST = cmd_1 & [cmd_2 & ... cmd_i & ... cmd_N &])
+ ;; return once cmd_N ends, i.e., the shell does not
+ ;; wait for cmd_i to finish before executing cmd_i+1.
+ ;; That means, running (shell-command LIST) may not show
+ ;; the output of all the commands (Bug#23206).
+ ;; Add 'wait' to force those POSIX shells to wait until
+ ;; all commands finish.
+ (or (and parallel-in-background (not (memq system-type '(ms-dos windows-nt))) "&wait")
+ "")))
+ (t
+ (let ((files (mapconcat 'shell-quote-argument
+ file-list dired-mark-separator)))
+ (when (cdr file-list)
+ (setq files (concat dired-mark-prefix files dired-mark-postfix)))
+ (funcall stuff-it files))))
+ (or (and in-background "&") ""))))
;; This is an extra function so that it can be redefined by ange-ftp.
;;;###autoload