136 lines
6.9 KiB
Scheme
136 lines
6.9 KiB
Scheme
;;; Guix Data Service -- Information about Guix over time
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;;; Copyright © 2019 Christopher Baines <mail@cbaines.net>
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;;;
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;;; This program is free software: you can redistribute it and/or
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;;; modify it under the terms of the GNU Affero General Public License
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;;; as published by the Free Software Foundation, either version 3 of
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;;; the License, or (at your option) any later version.
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;;;
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;;; This program is distributed in the hope that it will be useful,
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;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;; Affero General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU Affero General Public
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;;; License along with this program. If not, see
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;;; <http://www.gnu.org/licenses/>.
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(define-module (guix-data-service branch-updated-emails)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-11)
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#:use-module (srfi srfi-19)
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#:use-module (email email)
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#:use-module (squee)
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#:use-module (guix store)
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#:use-module (guix channels)
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#:use-module (guix-data-service database)
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#:use-module (guix-data-service model git-repository)
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#:use-module (guix-data-service model git-branch)
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#:use-module (guix-data-service model git-commit)
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#:use-module (guix-data-service jobs load-new-guix-revision)
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#:export (enqueue-job-for-email))
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(define commit-all-zeros
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"0000000000000000000000000000000000000000")
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(define (enqueue-job-for-email conn email)
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(let* ((headers (email-headers email))
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(date (assq-ref headers 'date))
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(x-git-repo (assq-ref headers 'x-git-repo))
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(x-git-reftype (assq-ref headers 'x-git-reftype))
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(x-git-refname (assq-ref headers 'x-git-refname))
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(x-git-newrev (assq-ref headers 'x-git-newrev)))
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(when (and (and (string? x-git-reftype)
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(string=? x-git-reftype "branch"))
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(string? x-git-newrev))
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(let ((branch-name
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(string-drop x-git-refname 11))
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(git-repository-id
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(git-repository-x-git-repo-header->git-repository-id
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conn
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x-git-repo)))
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(when git-repository-id
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(let-values
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(((included-branches excluded-branches)
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(select-includes-and-excluded-branches-for-git-repository
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conn
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git-repository-id)))
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(let ((excluded-branch?
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(member branch-name excluded-branches string=?))
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(included-branch?
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(member branch-name included-branches string=?)))
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(when (and (not excluded-branch?)
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(or (null? included-branches)
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included-branch?))
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(if (string=? commit-all-zeros x-git-newrev)
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(insert-git-commit-entry conn
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(or (git-branch-for-repository-and-name
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conn
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git-repository-id
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branch-name)
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(insert-git-branch-entry
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conn
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git-repository-id
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branch-name))
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""
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date)
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;; Fetch the latest channel instance to check if this
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;; email matches up with the current state of the Git
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;; repository, and ignore it if it doesn't.
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(let* ((git-repository-details
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(select-git-repository conn git-repository-id))
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(channel-for-commit
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(channel (name 'guix)
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(url (second git-repository-details))
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(commit x-git-repo)))
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(channel-instance
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;; Obtain a session level lock here, to avoid conflicts with
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;; other jobs over the Git repository.
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(with-advisory-session-lock/log-time
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conn
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'latest-channel-instances
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(lambda ()
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(with-store store
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(first
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(latest-channel-instances store
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(list channel-for-commit)
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#:authenticate?
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(fourth git-repository-details))))))))
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(if (string=? (channel-instance-commit channel-instance)
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x-git-newrev)
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(with-postgresql-transaction
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conn
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(lambda (conn)
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(exec-query conn "LOCK TABLE git_commits IN EXCLUSIVE MODE")
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(if (git-commit-exists? conn x-git-newrev)
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(simple-format #t "commit already exists for revision ~A (date: ~A)\n"
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x-git-newrev
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date)
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(begin
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(insert-git-commit-entry conn
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(or (git-branch-for-repository-and-name
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conn
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git-repository-id
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branch-name)
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(insert-git-branch-entry
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conn
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git-repository-id
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branch-name))
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x-git-newrev
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date)
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(enqueue-load-new-guix-revision-job
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conn
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git-repository-id
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x-git-newrev
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(string-append x-git-repo " "
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x-git-refname " updated"))))))
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(simple-format #t "email newrev ~A doesn't match latest channel instance commit ~A\n"
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x-git-newrev
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(channel-instance-commit channel-instance)))))))))))))
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