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#! /bin/bash
# -*- scheme -*-
exec guile $GUILE_FLAGS -l $0 -e main -- "$@"
!#
;; Tekuti
;; Copyright (C) 2008 Andy Wingo <wingo at pobox dot com>
;; This program 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.
;;
;; This program 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 this program; if not, contact:
;;
;; Free Software Foundation Voice: +1-617-542-5942
;; 59 Temple Place - Suite 330 Fax: +1-617-542-2652
;; Boston, MA 02111-1307, USA gnu@gnu.org
;;; Commentary:
;;
;; This is the main script that will launch tekuti.
;;
;;; Code:
;; (turn-on-debugging)
(use-modules (tekuti git) (tekuti post))
(define (make-tree-full alist)
(string-trim-both
(git* '("mktree")
#:input (string-join
(map (lambda (l)
(apply format #f "~a ~a ~a\t~a"
(reverse l)))
alist)
"\n" 'suffix))))
(define (create-blob contents)
(string-trim-both
(git* '("hash-object" "-w" "--stdin") #:input contents)))
(define (munge-comment sha1)
(let ((dir (git-ls-tree sha1 #f))
(metadata (parse-metadata (string-append sha1 ":metadata")
(@@ (tekuti comment) *comment-spec*))))
(set! dir (assoc-set! dir "metadata"
(list (create-blob (with-output-to-string
(lambda () (write metadata))))
"blob" "100644")))
(make-tree-full dir)))
(define (munge-comments alist)
(let ((comments (make-tree
(map (lambda (pair)
(cons (car pair) (munge-comment (cdr pair))))
alist))))
(make-tree (acons "comments" comments '()))))
(define (munge-post pair)
(let* ((sha1 (cdr pair))
(dir (git-ls-tree sha1 #f))
(metadata (parse-metadata (string-append sha1 ":metadata")
(@@ (tekuti post) *post-spec*))))
(set! dir (assoc-set! dir "metadata"
(list (create-blob (with-output-to-string
(lambda () (write metadata))))
"blob" "100644")))
(if (assoc "comments" dir)
(set! dir (assoc-set! dir "comments"
(list (munge-comments (git-ls-subdirs (string-append sha1 ":comments/") #f))
"tree" "040000"))))
(pk 'out (cons (car pair) (make-tree-full dir)))))
(define (main args)
(ensure-git-repo)
(let* ((master (git-rev-parse "master"))
(posts (git-ls-subdirs master #f)))
(let ((new-tree (make-tree (map munge-post posts))))
(write
(git* `("commit-tree" ,new-tree "-p" ,master)
#:input "upgraded metadata to s-expressions")))))
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