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feat: checkout branch from ghpr-review-mode

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Lucas Sta Maria 2025-08-26 21:29:58 +08:00
parent aa4749c648
commit c49a89705f
Signed by: lucas
GPG key ID: F07FB16A826E3B47
3 changed files with 62 additions and 0 deletions
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49
ghpr-repo.el
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@ -41,6 +41,55 @@ Returns nil if origin remote doesn't exist or is not a GitHub repository."
(when (string-match "github\\.com[:/]\\([^/]+/[^/.]+\\)" origin-url)
(match-string 1 origin-url)))))
(defun ghpr--is-fork-pr-p (pr-metadata)
"Return t if PR is from a fork, nil if from same repository.
PR-METADATA should contain head_repo and head_user information."
(let ((head-repo (alist-get 'head_repo pr-metadata))
(head-user (alist-get 'head_user pr-metadata))
(origin-repo-name (ghpr--get-repo-name)))
(when (and head-repo head-user origin-repo-name)
(let ((head-repo-full-name (alist-get 'full_name head-repo))
(head-user-login (alist-get 'login head-user)))
(not (string= head-repo-full-name origin-repo-name))))))
(defun ghpr--get-or-add-remote (pr-metadata)
"Get or add the remote for the PR's head repository.
Returns the remote name to use for fetching the PR branch."
(let* ((head-repo (alist-get 'head_repo pr-metadata))
(head-user (alist-get 'head_user pr-metadata))
(head-user-login (alist-get 'login head-user))
(head-repo-clone-url (alist-get 'clone_url head-repo))
(remote-name head-user-login))
(if (ghpr--is-fork-pr-p pr-metadata)
(progn
(unless (magit-remote-p remote-name)
(magit-remote-add remote-name head-repo-clone-url))
remote-name)
"origin")))
(defun ghpr--checkout-pr-branch (pr-metadata)
"Check out the PR branch using Magit.
Fetches the branch from appropriate remote if needed, then checks it out.
PR-METADATA should contain head_ref, head_sha, and repository information."
(let* ((head-ref (alist-get 'head_ref pr-metadata))
(head-sha (alist-get 'head_sha pr-metadata))
(pr-number (alist-get 'number pr-metadata))
(remote-name (ghpr--get-or-add-remote pr-metadata))
(remote-branch-ref (format "%s/%s" remote-name head-ref))
(local-branch-name head-ref))
(unless head-ref
(error "PR metadata missing head branch reference"))
(message "Fetching PR branch from %s..." remote-name)
(magit-fetch-branch remote-name head-ref local-branch-name)
(message "Checking out PR branch: %s" local-branch-name)
(magit-checkout local-branch-name)
(message "Checked out PR #%s branch: %s" pr-number local-branch-name)))
(provide 'ghpr-repo)
;;; ghpr-repo.el ends here