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;;; tissue --- Text based issue tracker
;;; Copyright © 2022 Arun Isaac <arunisaac@systemreboot.net>
;;;
;;; This file is part of tissue.
;;;
;;; tissue 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.
;;;
;;; tissue 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 tissue. If not, see <https://www.gnu.org/licenses/>.
(define-module (tissue tissue)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-9)
#:use-module (srfi srfi-71)
#:use-module (ice-9 match)
#:use-module (tissue git)
#:export (tissue-configuration
tissue-configuration?
tissue-configuration-project
tissue-configuration-aliases
tissue-configuration-indexed-documents
tissue-configuration-web-css
tissue-configuration-web-files
gemtext-files-in-directory))
(define-record-type <tissue-configuration>
(make-tissue-configuration project aliases indexed-documents
web-css web-files)
tissue-configuration?
(project tissue-configuration-project)
(aliases tissue-configuration-aliases)
(indexed-documents delayed-tissue-configuration-indexed-documents)
(web-css tissue-configuration-web-css)
(web-files delayed-tissue-configuration-web-files))
(define tissue-configuration-indexed-documents
(compose force delayed-tissue-configuration-indexed-documents))
(define tissue-configuration-web-files
(compose force delayed-tissue-configuration-web-files))
(define* (gemtext-files-in-directory #:optional directory)
"Return a list of all gemtext files in DIRECTORY tracked in the
current git repository. If DIRECTORY is #f, return the list of all
gemtext files tracked in the current git repository regardless of
which directory they are in."
(filter (lambda (filename)
(and (or (not directory)
(string-prefix? directory filename))
(string-suffix? ".gmi" filename)))
(git-tracked-files (current-git-repository))))
(define (pairify lst)
"Return a list of pairs of successive elements of LST. For example,
(pairify (list 1 2 3 4 5 6))
=> ((1 . 2) (3 . 4) (5 . 6))"
(match lst
(() '())
((first second tail ...)
(cons (cons first second)
(pairify tail)))))
(define-syntax tissue-configuration
(lambda (x)
(syntax-case x ()
((_ args ...)
#`((lambda* (#:key project (aliases '())
(indexed-documents (delay '()))
web-css (web-files (delay '())))
"PROJECT is the name of the project. It is used in the title of the
generated web pages, among other places.
ALIASES is a list of aliases used to refer to authors in the
repository. Each element is in turn a list of aliases an author goes
by, the first of which is the canonical name of that author.
INDEXED-DOCUMENTS is a list of <indexed-documents> objects
representing documents to index.
WEB-CSS is the path to a CSS stylesheet. It is relative to the
document root and must begin with a /. If it is #f, no stylesheet is
used in the generated web pages.
WEB-FILES is a list of <file> objects representing files to be written
to the web output."
(make-tissue-configuration project aliases
indexed-documents web-css web-files))
#,@(append-map (match-lambda
((key . value)
(if (memq (syntax->datum key)
(list #:indexed-documents #:web-files))
#`(#,key (delay #,value))
#`(#,key #,value))))
(pairify #'(args ...))))))))
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