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;; this functions are to make it easy to work with `pants'
(defvar fcuny/build-command "cd ~/src/source && ./pants --no-colors"
"Command to use to execute the target")
(defvar fcuny/build-file "BUILD"
"Name of the file containing our build targets")
(defun fcuny/--find-directory-containing-build-file (file)
"Find the directory containing the build file."
(let ((root nil)
try)
(while (not (or root
(null file)
(string-match locate-dominating-stop-dir-regexp file)))
(setq try (if (stringp fcuny/build-file)
(file-exists-p (expand-file-name fcuny/build-file file))))
(cond (try (setq root file))
((equal file (setq file (file-name-directory
(directory-file-name file))))
(setq file nil))))
(and root (expand-file-name (file-name-as-directory root)))))
(defun fcuny/--build-action (target)
(compile (format "%s binary %s" fcuny/build-command target)))
(defun fcuny/--build-target-list (file)
"Generate a list of existing targets"
(let ((build-command (format "%s list %s:" fcuny/build-command file))
targets target)
(with-temp-buffer
(insert
(shell-command-to-string build-command))
(goto-char (point-min))
(while (re-search-forward "^\\(.+\\)$" nil t)
(setq target (match-string 1))
(unless (or (save-excursion
(goto-char (match-beginning 0))
(forward-line -1)
(looking-at "^# Not a target:"))
(string-match "^\\." target))
(push target targets))))
(helm
(helm :sources
`((name . "Targets")
(candidates . ,targets)
(action . fcuny/--build-action))))))
(defun fcuny/find-build-file ()
"Find the build file and if it exists, open it."
(interactive)
(let ((build-file (fcuny/--find-directory-containing-build-file (file-name-directory (buffer-file-name)))))
(if build-file
(find-file (concat build-file fcuny/build-file))
(error "Could not find %s" fcuny/build-file))))
(defun fcuny/build-run-target ()
"List the targets for a BUILD file."
(interactive)
(let ((build-file (fcuny/--find-directory-containing-build-file (file-name-directory (buffer-file-name)))))
(if build-file
(fcuny/--build-target-list build-file)
(error "Could not find %s" fcuny/build-file))))
(provide 'core-pants)
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