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* lisp/emacs-lisp/package.el: More conservative `ensure-init-file'

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(package--ensure-init-file): Check file contents before visiting.
(package-initialize): Call it.
(package-install-from-buffer, package-install): Don't call it.
This commit is contained in:
Artur Malabarba 2015-04-07 18:59:40 +01:00
parent bf87b4d5a8
commit 0465c9dd42
1 changed files with 22 additions and 13 deletions
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35
lisp/emacs-lisp/package.el
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@ -1315,9 +1315,12 @@ If successful, set `package-archive-contents'."
(defun package-initialize (&optional no-activate)
"Load Emacs Lisp packages, and activate them.
The variable `package-load-list' controls which packages to load.
If optional arg NO-ACTIVATE is non-nil, don't activate packages."
If optional arg NO-ACTIVATE is non-nil, don't activate packages.
If `user-init-file' does not mention `(package-initialize)', add
it to the file."
(interactive)
(setq package-alist nil)
(package--ensure-init-file)
(package-load-all-descriptors)
(package-read-all-archive-contents)
(unless no-activate
@ -1752,25 +1755,33 @@ using `package-compute-transaction'."
"Ensure that the user's init file calls `package-initialize'."
;; Don't mess with the init-file from "emacs -Q".
(when user-init-file
(let ((buffer (find-buffer-visiting user-init-file)))
(with-current-buffer (or buffer (find-file-noselect user-init-file))
(save-excursion
(save-restriction
(widen)
(goto-char (point-min))
(unless (search-forward "(package-initialize)" nil 'noerror)
(let* ((buffer (find-buffer-visiting user-init-file))
(contains-init
(if buffer
(with-current-buffer buffer
(search-forward "(package-initialize)" nil 'noerror))
(with-temp-buffer
(insert-file-contents user-init-file)
(goto-char (point-min))
(search-forward "(package-initialize)" nil 'noerror)))))
(unless contains-init
(with-current-buffer (or buffer (find-file-noselect user-init-file))
(save-excursion
(save-restriction
(widen)
(goto-char (point-min))
(insert
";; Added by Package.el. This must come before configurations of\n"
";; installed packages. Don't delete this line. If you don't want it,\n"
";; just comment it out by adding a semicolon to the start of the line.\n"
";; You may delete these explanatory comments.\n"
"(package-initialize)\n")
(unless (looking-at-p "$")
(insert "\n"))
(let ((file-precious-flag t))
(save-buffer)))
(unless buffer
(kill-buffer (current-buffer)))))))))
(save-buffer))
(unless buffer
(kill-buffer (current-buffer))))))))))
;;;###autoload
(defun package-install (pkg &optional dont-select async callback)
@ -1803,7 +1814,6 @@ to install it but still mark it as selected."
package-archive-contents))
nil t))
nil)))
(package--ensure-init-file)
(let ((name (if (package-desc-p pkg)
(package-desc-name pkg)
pkg)))
@ -1846,7 +1856,6 @@ is derived from the main .el file in the directory.
Downloads and installs required packages as needed."
(interactive)
(package--ensure-init-file)
(let* ((pkg-desc
(cond
((derived-mode-p 'dired-mode)