all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
blob 60da488f70b8db47b483ff4a8cdc1b4acb6fd102 5025 bytes (raw)
name: lisp/ob-sqlite.el 	 # note: path name is non-authoritative(*)

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
 
;;; ob-sqlite.el --- Babel Functions for SQLite Databases -*- lexical-binding: t; -*-

;; Copyright (C) 2010-2023 Free Software Foundation, Inc.

;; Author: Eric Schulte
;; Maintainer: Nick Savage <nick@nicksavage.ca>
;; Keywords: literate programming, reproducible research
;; URL: https://orgmode.org

;; 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 <https://www.gnu.org/licenses/>.

;;; Commentary:

;; Org-Babel support for evaluating sqlite source code.

;;; Code:

(require 'org-macs)
(org-assert-version)

(require 'ob)
(require 'ob-sql)

(declare-function org-table-convert-region "org-table"
		  (beg0 end0 &optional separator))
(declare-function orgtbl-to-csv "org-table" (table params))
(declare-function org-table-to-lisp "org-table" (&optional txt))

(defvar org-babel-default-header-args:sqlite '())

(defvar org-babel-header-args:sqlite
  '((db        . :any)
    (header    . :any)
    (echo      . :any)
    (bail      . :any)
    (csv       . :any)
    (column    . :any)
    (html      . :any)
    (line      . :any)
    (list      . :any)
    (separator . :any)
    (nullvalue . :any))
  "Sqlite specific header args.")

(defun org-babel-expand-body:sqlite (body params)
  "Expand BODY according to the values of PARAMS."
  (org-babel-sql-expand-vars
   body (org-babel--get-vars params) t))

(defvar org-babel-sqlite3-command "sqlite3")

(defun org-babel-execute:sqlite (body params)
  "Execute a block of Sqlite code with Babel.
This function is called by `org-babel-execute-src-block'."
  (let ((result-params (split-string (or (cdr (assq :results params)) "")))
	(db (or (cdr (assq :db params)) ":memory:"))
	(separator (cdr (assq :separator params)))
	(nullvalue (cdr (assq :nullvalue params)))
	(headers-p (equal "yes" (cdr (assq :colnames params))))
	(others (delq nil (mapcar
			   (lambda (arg) (car (assq arg params)))
			   (list :header :echo :bail :column
				 :csv :html :line :list)))))
    (with-temp-buffer
      (insert
       (org-babel-eval
	(org-fill-template
	 "%cmd %header %separator %nullvalue %others %csv %db "
	 (list
	  (cons "cmd" org-babel-sqlite3-command)
	  (cons "header" (if headers-p "-header" "-noheader"))
	  (cons "separator"
		(if separator (format "-separator %s" separator) ""))
	  (cons "nullvalue"
		(if nullvalue (format "-nullvalue %s" nullvalue) ""))
	  (cons "others"
		(mapconcat
		 (lambda (arg) (format "-%s" (substring (symbol-name arg) 1)))
		 others " "))
	  ;; for easy table parsing, default header type should be -csv
	  (cons "csv" (if (or (member :csv others) (member :column others)
			      (member :line others) (member :list others)
			      (member :html others) separator)
			  ""
			"-csv"))
	  (cons "db " db)))
	;; body of the code block
	(org-babel-expand-body:sqlite body params)))
      (org-babel-result-cond result-params
	(buffer-string)
	(if (equal (point-min) (point-max))
	    ""
	  (org-table-convert-region (point-min) (point-max)
				    (if (or (member :csv others)
					    (member :column others)
					    (member :line others)
					    (member :list others)
					    (member :html others) separator)
					nil
				      '(4)))
	  (org-babel-sqlite-table-or-scalar
	   (org-babel-sqlite-offset-colnames
	    (org-table-to-lisp) headers-p)))))))

(defun org-babel-sqlite-expand-vars (body vars)
  "Expand the variables held in VARS in BODY."
  (declare (obsolete "use `org-babel-sql-expand-vars' instead." "9.5"))
  (org-babel-sql-expand-vars body vars t))

(defun org-babel-sqlite-table-or-scalar (result)
  "If RESULT looks like a trivial table, then unwrap it."
  (if (and (equal 1 (length result))
	   (equal 1 (length (car result))))
      (org-babel-read (caar result) t)
    (mapcar (lambda (row)
	      (if (eq 'hline row)
		  'hline
		(mapcar #'org-babel-sqlite--read-cell row)))
	    result)))

(defun org-babel-sqlite-offset-colnames (table headers-p)
  "If HEADERS-P is non-nil then offset the first row as column names."
  (if headers-p
      (cons (car table) (cons 'hline (cdr table)))
    table))

(defun org-babel-prep-session:sqlite (_session _params)
  "Raise an error because support for SQLite sessions isn't implemented.
Prepare SESSION according to the header arguments specified in PARAMS."
  (error "SQLite sessions not yet implemented"))

(defun org-babel-sqlite--read-cell (cell)
  "Process CELL to remove unnecessary characters."
  (org-babel-read cell t))

(provide 'ob-sqlite)

;;; ob-sqlite.el ends here

debug log:

solving 60da488f7 ...
found 60da488f7 in https://yhetil.org/emacs/20230503125903.95063-1-salutis@me.com/
found 526b73ebd in https://git.savannah.gnu.org/cgit/emacs.git
preparing index
index prepared:
100644 526b73ebd9b92b47a1e907ea990175eb646b2871	lisp/ob-sqlite.el

applying [1/1] https://yhetil.org/emacs/20230503125903.95063-1-salutis@me.com/
diff --git a/lisp/ob-sqlite.el b/lisp/ob-sqlite.el
index 526b73ebd..60da488f7 100644

Checking patch lisp/ob-sqlite.el...
Applied patch lisp/ob-sqlite.el cleanly.

index at:
100644 60da488f70b8db47b483ff4a8cdc1b4acb6fd102	lisp/ob-sqlite.el

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/emacs.git
	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.