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Merge pull request from jwiegley/ensure-system-package-filepath

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allow :ensure-system-package to check the presence of files at path
GitHub-reference: https://github.com/jwiegley/use-package/issues/703
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John Wiegley 2018-07-10 00:29:34 -07:00 • committed by GitHub
commit c169644637
1 changed files with 8 additions and 1 deletions
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9
lisp/use-package/use-package-ensure-system-package.el
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@ -53,13 +53,20 @@
(t
(list (use-package-ensure-system-package-consify arg)))))))
(defun use-package-ensure-system-package-exists? (file-or-exe)
"If variable is a string, ensure the file path exists.
If it is a symbol, ensure the binary exist."
(if (stringp file-or-exe)
(file-exists-p file-or-exe)
(executable-find (symbol-name file-or-exe))))
;;;###autoload
(defun use-package-handler/:ensure-system-package (name _keyword arg rest state)
"Execute the handler for `:ensure-system-package' keyword in `use-package'."
(let ((body (use-package-process-keywords name rest state)))
(use-package-concat
(mapcar #'(lambda (cons)
`(unless (executable-find (symbol-name ',(car cons)))
`(unless (use-package-ensure-system-package-exists? ',(car cons))
(async-shell-command ,(cdr cons)))) arg)
body)))