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;;; my-github.el -- Github client -*- lexical-binding: t -*-
;; Copyright (C) 2023 Free Software Foundation.
;; Author: Yuchen Pei <id@ypei.org>
;; Package-Requires: ((emacs "28.2"))
;; This file is part of dotfiles.
;; dotfiles is free software: you can redistribute it and/or modify it under
;; the terms of the GNU Affero General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; dotfiles 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 Affero General
;; Public License for more details.
;; You should have received a copy of the GNU Affero General Public
;; License along with dotfiles. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Github client.
;;; Code:
(defun my-grok-github (url)
"get github info of a project.
url is the url of the project
License; name; description; homepage; created at"
(when (string-match "github.com\\(/[^/]+/[^/]+\\)/?.*$" url)
(with-current-buffer (url-retrieve-synchronously
(concat "https://api.github.com/repos"
(replace-regexp-in-string
"\\.git$" "" (match-string 1 url))))
(set-buffer-multibyte t)
(my-delete-http-header)
(my-grok-github-make-info (json-read)))))
(defun my-post-process-licensing-name (name)
(cond ((equal name "MIT") "expat")
(t name)))
(defun my-grok-github-make-info (raw)
(list (cons "Title" (alist-get 'name raw))
(cons "Description" (alist-get 'description raw))
(cons "Source" (alist-get 'html_url raw))
(cons "Website" (alist-get 'homepage raw))
(cons "Released" (substring (alist-get 'created_at raw) 0 10))
(cons "Pushed" (substring (alist-get 'pushed_at raw) 0 10))
(cons "Subject" (string-join (alist-get 'topics raw) ", "))
;; FIXME: why did we comment this out?
;; (cons "License" (my-post-process-licensing-name
;; (alist-get 'spdx_id (alist-get 'license raw))))
(cons "Developers" (my-grok-github-get-developer-name
(alist-get 'url (alist-get 'owner raw))))))
(defun my-grok-github-get-developer-name (url)
(with-current-buffer (url-retrieve-synchronously url)
(set-buffer-multibyte t)
(my-delete-http-header)
(alist-get 'name (json-read))))
;;; urls with github
;; TODO: generalise the following to common forges, including
;; savannah, cgit, gitlab etc.
(defun my-github-revision-url (file revision)
"Returns the github url of the upstream repo containing FILE at REVISION."
(let ((repo-url (vc-git-repository-url file))
(revision (or revision (vc-working-revision default-directory))))
(format "%s/commit/%s" repo-url revision)))
(defun my-github-kill-revision-url (revision)
"Kill the github revision url for REVISION."
(kill-new (my-github-revision-url revision)))
(defun my-github-file-loc-url (file-loc &optional revision)
"Convert a file location to a github url."
(pcase-let* ((`(,file ,line-no) (split-string file-loc ":"))
(revision (or revision (vc-working-revision file))))
(my-github-file-loc-url-internal file line-no revision)))
(defun my-github-file-loc-url-internal (file line-no revision)
"Convert a FILE location at LINE-NO to a github url.
REVISION is the commit hash."
(let* ((repo-url (vc-git-repository-url file))
(repo-root (vc-git-root file))
(path (file-relative-name file repo-root)))
(format "%s/blob/%s/%s#L%s" repo-url revision path line-no)))
(defun my-github-kill-current-file-loc-url ()
"Kill the github url from where the point is at."
(interactive)
(kill-new (my-github-file-loc-url-internal
(buffer-file-name)
(1+ (current-line))
(vc-working-revision (buffer-file-name)))))
(defun my-org-backtrace-to-github (bt &optional revision)
(string-join
(mapcar
(lambda (link)
(string-match "\\[\\[\\(.*\\)\\]\\[\\(.*\\)\\]\\]" link)
(let ((target (match-string 1 link))
(label (match-string 2 link)))
(format "[[%s][%s]]"
(my-github-file-loc-url target revision)
label)))
(split-string bt " > "))
" > "))
(defun my-org-backtrace-to-github-region (beg end)
(interactive "r")
(kill-new
(my-org-backtrace-to-github (buffer-substring-no-properties beg end))))
(defun my-org-backtrace-to-github-slack (beg end)
(interactive "r")
(let ((bt (buffer-substring-no-properties beg end))
(revision (when current-prefix-arg
(read-string "Rrevision: ")))
)
(with-temp-buffer
(insert "#+options: ^:nil
")
(goto-char (point-max))
(insert (my-org-backtrace-to-github bt revision))
(org-md-export-as-markdown))))
(provide 'my-github)
;;; my-github.el ends here
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