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Diffstat (limited to 'tools/emacs-pkgs/tvl/tvl.el')
| -rw-r--r-- | tools/emacs-pkgs/tvl/tvl.el | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/tools/emacs-pkgs/tvl/tvl.el b/tools/emacs-pkgs/tvl/tvl.el new file mode 100644 index 000000000000..500ffa165317 --- /dev/null +++ b/tools/emacs-pkgs/tvl/tvl.el @@ -0,0 +1,222 @@ +;;; tvl.el --- description -*- lexical-binding: t; -*- +;; +;; Copyright (C) 2020 Griffin Smith +;; Copyright (C) 2020 The TVL Contributors +;; +;; Author: Griffin Smith <grfn@gws.fyi> +;; Version: 0.0.1 +;; Package-Requires: (cl s magit) +;; +;; This file is not part of GNU Emacs. +;; +;;; Commentary: +;; +;; This file provides shared utilities for interacting with the TVL monorepo +;; +;;; Code: + +(require 'magit) +(require 's) +(require 'cl) ; TODO(tazjin): replace lexical-let* with non-deprecated alternative + +(defgroup tvl nil + "Customisation options for TVL functionality.") + +(defcustom tvl-gerrit-remote "origin" + "Name of the git remote for gerrit" + :type '(string) + :group 'tvl) + +(defcustom tvl-depot-path "/depot" + "Location at which the TVL depot is checked out." + :type '(string) + :group 'tvl) + +(defcustom tvl-target-branch "canon" + "Branch to use to target CLs" + :group 'tvl + :type '(string) + :safe (lambda (_) t)) + +(defun tvl--gerrit-ref (target-branch &optional flags) + (let ((flag-suffix (if flags (format "%%%s" (s-join "," flags)) + ""))) + (format "HEAD:refs/for/%s%s" target-branch flag-suffix))) + +(transient-define-suffix magit-gerrit-push-for-review () + "Push to Gerrit for review." + (interactive) + (magit-push-refspecs tvl-gerrit-remote + (tvl--gerrit-ref tvl-target-branch) + nil)) + +(transient-append-suffix + #'magit-push ["r"] + (list "R" "push to Gerrit for review" #'magit-gerrit-push-for-review)) + +(transient-define-suffix magit-gerrit-push-wip () + "Push to Gerrit as a work-in-progress." + (interactive) + (magit-push-refspecs tvl-gerrit-remote + (tvl--gerrit-ref tvl-target-branch '("wip")) + nil)) + +(transient-append-suffix + #'magit-push ["r"] + (list "W" "push to Gerrit as a work-in-progress" #'magit-gerrit-push-wip)) + +(transient-define-suffix magit-gerrit-push-autosubmit () + "Push to Gerrit with autosubmit enabled." + (interactive) + (magit-push-refspecs tvl-gerrit-remote + (tvl--gerrit-ref tvl-target-branch '("l=Autosubmit+1")) + nil)) + +(transient-append-suffix + #'magit-push ["r"] + (list "A" "push to Gerrit with autosubmit enabled" #'magit-gerrit-push-autosubmit)) + +(transient-define-suffix magit-gerrit-submit () + "Push to Gerrit for review." + (interactive) + (magit-push-refspecs tvl-gerrit-remote + (tvl--gerrit-ref tvl-target-branch '("submit")) + nil)) + +(transient-append-suffix + #'magit-push ["r"] + (list "S" "push to Gerrit to submit" #'magit-gerrit-submit)) + + +(transient-define-suffix magit-gerrit-rubberstamp () + "Push, approve and autosubmit to Gerrit. CLs created via this +rubberstamp method will automatically be submitted after CI +passes. This is potentially dangerous, use with care." + (interactive) + (magit-push-refspecs tvl-gerrit-remote + (tvl--gerrit-ref tvl-target-branch + '("l=Code-Review+2" + "l=Autosubmit+1" + "publish-comments")) + nil)) + +(transient-append-suffix + #'magit-push ["r"] + (list "P" "push & rubberstamp to Gerrit" #'magit-gerrit-rubberstamp)) + +(defvar magit-cl-history nil) +(defun magit-read-cl (prompt remote) + (let* ((refs (prog2 (message "Determining available refs...") + (magit-remote-list-refs remote) + (message "Determining available refs...done"))) + (change-refs (-filter + (apply-partially #'string-prefix-p "refs/changes/") + refs)) + (cl-number-to-refs + (-group-by + (lambda (change-ref) + ;; refs/changes/34/1234/1 + ;; ^ ^ ^ ^ ^ + ;; 1 2 3 4 5 + ;; ^-- this one + (cadddr + (split-string change-ref (rx "/")))) + change-refs)) + (cl-numbers + (-map + (lambda (cl-to-refs) + (let ((latest-patchset-ref + (-max-by + (-on #'> (lambda (ref) + (string-to-number + (nth 4 (split-string ref (rx "/")))))) + (-remove + (apply-partially #'s-ends-with-p "meta") + (cdr cl-to-refs))))) + (propertize (car cl-to-refs) 'ref latest-patchset-ref))) + cl-number-to-refs))) + (get-text-property + 0 + 'ref + (magit-completing-read + prompt cl-numbers nil t nil 'magit-cl-history)))) + +(transient-define-suffix magit-gerrit-checkout (remote cl-refspec) + "Prompt for a CL number and checkout the latest patchset of that CL with + detached HEAD" + (interactive + (let* ((remote tvl-gerrit-remote) + (cl (magit-read-cl "Checkout CL" remote))) + (list remote cl))) + (magit-fetch-refspec remote cl-refspec (magit-fetch-arguments)) + ;; That runs async, so wait for it to finish (this is how magit does it) + (while (and magit-this-process + (eq (process-status magit-this-process) 'run)) + (sleep-for 0.005)) + (magit-checkout "FETCH_HEAD" (magit-branch-arguments)) + (message "HEAD detached at %s" cl-refspec)) + + +(transient-append-suffix + #'magit-branch ["l"] + (list "g" "gerrit CL" #'magit-gerrit-checkout)) + +(transient-define-suffix magit-gerrit-cherry-pick (remote cl-refspec) + "Prompt for a CL number and cherry-pick the latest patchset of that CL" + (interactive + (let* ((remote tvl-gerrit-remote) + (cl (magit-read-cl "Cherry-pick CL" remote))) + (list remote cl))) + (magit-fetch-refspec remote cl-refspec (magit-fetch-arguments)) + ;; That runs async, so wait for it to finish (this is how magit does it) + (while (and magit-this-process + (eq (process-status magit-this-process) 'run)) + (sleep-for 0.005)) + (magit-cherry-copy (list "FETCH_HEAD")) + (message "HEAD detached at %s" cl-refspec)) + + +(transient-append-suffix + #'magit-cherry-pick ["m"] + (list "g" "Gerrit CL" #'magit-gerrit-cherry-pick)) + +(defun tvl-depot-status () + "Open the TVL monorepo in magit." + (interactive) + (magit-status-setup-buffer tvl-depot-path)) + +(eval-after-load 'sly + '(defun tvl-sly-from-depot (attribute) + "Start a Sly REPL configured with a Lisp matching a derivation + from the depot. + + The derivation invokes nix.buildLisp.sbclWith and is built + asynchronously. The build output is included in the error + thrown on build failures." + + (interactive "sAttribute: ") + (lexical-let* ((outbuf (get-buffer-create (format "*depot-out/%s*" attribute))) + (errbuf (get-buffer-create (format "*depot-errors/%s*" attribute))) + (expression (format "(import <depot> {}).%s.repl" attribute)) + (command (list "nix-build" "--no-out-link" "-I" (format "depot=%s" tvl-depot-path) "-E" expression))) + (message "Acquiring Lisp for <depot>.%s" attribute) + (make-process :name (format "depot-nix-build/%s" attribute) + :buffer outbuf + :stderr errbuf + :command command + :sentinel + (lambda (process event) + (unwind-protect + (pcase event + ("finished\n" + (let* ((outpath (s-trim (with-current-buffer outbuf (buffer-string)))) + (lisp-path (s-concat outpath "/bin/sbcl"))) + (message "Acquired Lisp for <depot>.%s at %s" attribute lisp-path) + (sly lisp-path))) + (_ (with-current-buffer errbuf + (error "Failed to build '%s':\n%s" attribute (buffer-string))))) + (kill-buffer outbuf) + (kill-buffer errbuf))))))) + +(provide 'tvl) +;;; tvl.el ends here |