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Diffstat (limited to '.emacs.d/org-7.4/lisp/ob-sql.el')
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1 files changed, 126 insertions, 0 deletions
diff --git a/.emacs.d/org-7.4/lisp/ob-sql.el b/.emacs.d/org-7.4/lisp/ob-sql.el new file mode 100644 index 0000000..5bb123d --- /dev/null +++ b/.emacs.d/org-7.4/lisp/ob-sql.el @@ -0,0 +1,126 @@ +;;; ob-sql.el --- org-babel functions for sql evaluation + +;; Copyright (C) 2009, 2010 Free Software Foundation, Inc. + +;; Author: Eric Schulte +;; Keywords: literate programming, reproducible research +;; Homepage: http://orgmode.org +;; Version: 7.4 + +;; This file is part of GNU Emacs. + +;; GNU Emacs is free software: you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by +;; the Free Software Foundation, either version 3 of the License, or +;; (at your option) any later version. + +;; GNU Emacs is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. + +;;; Commentary: + +;; Org-Babel support for evaluating sql source code. +;; +;; SQL is somewhat unique in that there are many different engines for +;; the evaluation of sql (Mysql, PostgreSQL, etc...), so much of this +;; file will have to be implemented engine by engine. +;; +;; Also SQL evaluation generally takes place inside of a database. +;; +;; For now lets just allow a generic ':cmdline' header argument. +;; +;; TODO: +;; +;; - support for sessions +;; - add more useful header arguments (user, passwd, database, etc...) +;; - support for more engines (currently only supports mysql) +;; - what's a reasonable way to drop table data into SQL? +;; + +;;; Code: +(require 'ob) +(eval-when-compile (require 'cl)) + +(declare-function org-table-import "org-table" (file arg)) +(declare-function orgtbl-to-csv "org-table" (TABLE PARAMS)) + +(defvar org-babel-default-header-args:sql '()) + +(defun org-babel-expand-body:sql (body params) + "Expand BODY according to the values of PARAMS." + (org-babel-sql-expand-vars + body (mapcar #'cdr (org-babel-get-header params :var)))) + +(defun org-babel-execute:sql (body params) + "Execute a block of Sql code with Babel. +This function is called by `org-babel-execute-src-block'." + (let* ((result-params (cdr (assoc :result-params params))) + (cmdline (cdr (assoc :cmdline params))) + (engine (cdr (assoc :engine params))) + (in-file (org-babel-temp-file "sql-in-")) + (out-file (or (cdr (assoc :out-file params)) + (org-babel-temp-file "sql-out-"))) + (command (case (intern engine) + ('msosql (format "osql %s -s \"\t\" -i %s -o %s" + (or cmdline "") + (org-babel-process-file-name in-file) + (org-babel-process-file-name out-file))) + ('mysql (format "mysql %s -e \"source %s\" > %s" + (or cmdline "") + (org-babel-process-file-name in-file) + (org-babel-process-file-name out-file))) + ('postgresql (format "psql -A -P footer=off -F \"\t\" -f %s -o %s %s" + (org-babel-process-file-name in-file) + (org-babel-process-file-name out-file) + (or cmdline ""))) + (t (error "no support for the %s sql engine" engine))))) + (with-temp-file in-file + (insert (org-babel-expand-body:sql body params))) + (message command) + (shell-command command) + (with-temp-buffer + (org-table-import out-file '(16)) + (org-babel-reassemble-table + (org-table-to-lisp) + (org-babel-pick-name (cdr (assoc :colname-names params)) + (cdr (assoc :colnames params))) + (org-babel-pick-name (cdr (assoc :rowname-names params)) + (cdr (assoc :rownames params))))))) + +(defun org-babel-sql-expand-vars (body vars) + "Expand the variables held in VARS in BODY." + (mapc + (lambda (pair) + (setq body + (replace-regexp-in-string + (format "\$%s" (car pair)) + ((lambda (val) + (if (listp val) + ((lambda (data-file) + (with-temp-file data-file + (insert (orgtbl-to-csv + val '(:fmt (lambda (el) (if (stringp el) + el + (format "%S" el))))))) + data-file) + (org-babel-temp-file "sql-data-")) + (if (stringp val) val (format "%S" val)))) + (cdr pair)) + body))) + vars) + body) + +(defun org-babel-prep-session:sql (session params) + "Raise an error because Sql sessions aren't implemented." + (error "sql sessions not yet implemented")) + +(provide 'ob-sql) + +;; arch-tag: a43ff944-6de1-4566-a83c-626814e3dad2 + +;;; ob-sql.el ends here |