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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 commit)
#:use-module (oop goops)
#:use-module (term ansi-color)
#:use-module (git)
#:use-module (tissue document)
#:use-module (tissue git)
#:use-module (tissue person)
#:use-module (tissue utils)
#:export (<commit>
commit-hash
doc:commit-author
doc:commit-author-date
commits-in-current-repository))
(define-class <commit> (<document>)
(hash #:getter commit-hash #:init-keyword #:hash)
;; We prefix commit-author and commit-author-date with doc: in order
;; to not conflict with similarly named functions from (git) and
;; (tissue git).
(author #:getter doc:commit-author #:init-keyword #:author)
(author-date #:getter doc:commit-author-date #:init-keyword #:author-date))
(define-method (document-id-term (commit <commit>))
"Return the ID term for DOCUMENT."
(string-append "Qcommit." (commit-hash commit)))
(define-method (document-term-generator (commit <commit>))
"Return a term generator indexing COMMIT."
(let ((term-generator (next-method)))
(index-person! term-generator (doc:commit-author commit) "A")
term-generator))
(define-method (document-snippet-source-text (commit <commit>))
"Return the source text for COMMIT from which to extract a search
result snippet."
(commit-body
(commit-lookup (current-git-repository)
(string->oid (commit-hash commit)))))
(define-method (document-text (commit <commit>))
"Return the full text of COMMIT."
(commit-message
(commit-lookup (current-git-repository)
(string->oid (commit-hash commit)))))
(define-method (print (commit <commit>) mset port)
"Print COMMIT, a <commit> object, to PORT as part of command-line
search results. MSET is the xapian MSet object representing a list of
search results."
(display (colorize-string (document-title commit) 'MAGENTA 'UNDERLINE)
port)
(newline port)
(display (colorize-string "COMMIT" 'BOLD 'YELLOW)
port)
(display " " port)
(display (colorize-string (commit-hash commit) 'YELLOW)
port)
(newline port)
(display (string-append
"authored "
(colorize-string (human-date-string (doc:commit-author-date commit)) 'CYAN)
" by "
(colorize-string (doc:commit-author commit) 'CYAN))
port)
(newline port)
(let ((snippet (document-snippet commit mset)))
(unless (string-null? snippet)
(display snippet port)
(newline port)
(newline port))))
(define-method (document->sxml (commit <commit>) mset)
"Render COMMIT, a <commit> object, to SXML. MSET is the xapian MSet
object representing a list of search results."
`(li (@ (class ,(string-append "search-result search-result-commit")))
(a (@ (href ,(document-web-uri commit))
(class "search-result-title"))
,(document-title commit))
(div (@ (class "search-result-metadata"))
,(string-append
(format #f "authored ~a by ~a"
(human-date-string (doc:commit-author-date commit))
(doc:commit-author commit))))
,@(let ((snippet (document-sxml-snippet commit mset)))
(if snippet
(list `(div (@ (class "search-result-snippet"))
,@snippet))
(list)))))
(define (repository-commits repository)
"Return a list of <commit> objects representing commits in
REPOSITORY."
(fold-commits (lambda (commit result)
(cons (make <commit>
#:title (commit-summary commit)
#:hash (oid->string (commit-id commit))
#:author (resolve-alias (signature-name (commit-author commit))
(%aliases))
#:author-date (commit-author-date commit))
result))
(list)
repository))
(define (commits-in-current-repository)
"Return a list of <commit> objects representing commits in current
repository."
(repository-commits (current-git-repository)))
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