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Merge pull request from kovrik/issue-299

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Move :pin out of macro expansion phase
GitHub-reference: https://github.com/jwiegley/use-package/issues/302
This commit is contained in:
John Wiegley 2016-01-12 16:01:19 -05:00
commit 38c170e17b
1 changed files with 11 additions and 12 deletions
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23
lisp/use-package/use-package.el
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@ -419,23 +419,22 @@ manually updated package."
(let ((archive-symbol (if (symbolp archive) archive (intern archive)))
(archive-name (if (stringp archive) archive (symbol-name archive))))
(if (use-package--archive-exists-p archive-symbol)
(push (cons package archive-name) package-pinned-packages)
(add-to-list 'package-pinned-packages (cons package archive-name))
(error "Archive '%s' requested for package '%s' is not available."
archive-name package))
(package-initialize t)))
(defun use-package-handler/:pin (name keyword archive-name rest state)
(let ((body (use-package-process-keywords name rest state)))
;; This happens at macro expansion time, not when the expanded code is
;; compiled or evaluated.
(if (null archive-name)
body
(use-package-pin-package name archive-name)
(use-package-concat
body
`((push '(,(use-package-as-symbol name) . ,archive-name)
package-pinned-packages)
t)))))
(let ((body (use-package-process-keywords name rest state))
(pin-form (if archive-name
`(use-package-pin-package ',(use-package-as-symbol name)
,archive-name))))
;; Pinning should occur just before ensuring
;; See `use-package-handler/:ensure'.
(if (bound-and-true-p byte-compile-current-file)
(eval pin-form) ; Eval when byte-compiling,
(push pin-form body)) ; or else wait until runtime.
body))
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