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diff --git a/tissue/commit.scm b/tissue/commit.scm
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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)))