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[Emacs] Respace Non-Forking Shell Command

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Ivan Malison 2016-10-18 16:13:56 -07:00
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dotfiles/emacs.d/README.org
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@ -131,9 +131,13 @@ Sets environment variables by starting a shell.
(exec-path-from-shell-initialize)))))
#+END_SRC
** Non-Forking Shell Command To String
Emacs' built in ~shell-command-to-string~ function has the downside that it forks a new shell process every time it is executed. This means that any shell startup cost is incurred when this function is called.
Emacs' built in ~shell-command-to-string~ function has the downside that it
forks a new shell process every time it is executed. This means that any shell
startup cost is incurred when this function is called.
The following implementation uses eshell's ~eshell-search-path~ to find the binary (which is the only reason ~shell-comand-to-string~ is typically used anyway), but it avoids incurring any shell-startup cost.
The following implementation uses eshell's ~eshell-search-path~ to find the
binary (which is the only reason ~shell-comand-to-string~ is typically used
anyway), but it avoids incurring any shell-startup cost.
This was originally inspired by [[https://github.com/bbatsov/projectile/issues/1044][this issue]].
#+BEGIN_SRC emacs-lisp