* src/cuirass/database.scm (db-add-specification): Make notifications field
optional.

* src/cuirass/parameters.scm: New file.
* Makefile.am (dist_pkgmodule_DATA): Add it.
* bin/cuirass.in: Add "parameters" argument.
* src/cuirass/base.scm (read-parameters): New procedure.
* src/cuirass/notification.scm (build-details-url): New procedure.
(notification-text): Use it.
* src/cuirass/rss.scm (build-details-url): New procedure.
(build->rss-item): Use it.
(rss-feed): Remove "base-url" argument.
* src/cuirass/remote-server.scm: Add "parameters" argument.
* src/cuirass/zabbix.scm (%zabbix-uri, %zabbix-uri, %zabbix-password): Remove
them.
(zabbix-request, zabbix-login): Adapt accordingly.

* src/cuirass/mastodon.scm: New file.
* Makefile.am (dist_pkgmodule_DATA): Add it.
* src/cuirass/notification.scm (notification-type): Add "mastodon".
(notification-mastodon): New procedure.
(send-notifications): Add it.

* src/cuirass/mail.scm: New file.
* src/cuirass/notification.scm: New file.
* src/sql/upgrade-5.sql: New file.
* Makefile.am (dist_pkgmodule_DATA, dist_sql_DATA): Add them.
* src/schema.sql (Specifications)[notifications]: New field.
* bin/cuirass.in: Wrap inside the "with-notification" macro.
* src/cuirass/remote-server.scm (remote-server): Ditto.
* src/cuirass/database.scm (db-add-specification): Add notifications field.
(db-get-specifications): Ditto.
(db-update-build-status!): Send notifications.
* tests/mail.sh: New file.
* tests/database.scm (mu-debug, tmp-mail): New variables.
(mailer): New procedure.
(example-spec): Add an email notification.
("mail-notification"): New test case.

* src/cuirass/rss.scm (date->rfc822-str): Move it to ...
* src/cuirass/utils.scm: ... here.

* Makefile.am (dist_images_DATA): Update it.

* src/static/images/icon.svg: Remove it.
* src/cuirass/http.scm (%file-white-list): Remove "images/icon.svg".
* src/cuirass/templates.scm (html-page): Remove icon.svg link.

* src/cuirass/http.scm (%file-white-list): Rename "logo.png" into "guix.png".
Add "icon.png" and "icon.svg".
* src/cuirass/templates.scm (html-page): Adapt it.
* src/static/images/logo.png: Rename it ...
* src/static/images/guix.png: ... into this file.
* src/static/images/icon.png: New file.
* src/static/images/icon.svg: New file.

* src/cuirass/templates.scm (build-details, evaluation-info-table): Add lock
icons for admin actions.

* src/cuirass/templates.scm: Remove the evaluation restart dropdown arrow.
* src/static/css/cuirass.css (no-dropdown-arrow): New rule.

* src/cuirass/http.scm (url-handler): New route
"/admin/evaluation/<id>/restart".
* src/cuirass/templates.scm (evaluation-info-table): Add an evaluation restart
button.

* src/cuirass/database.scm (db-restart-evaluation!): New procedure.
* tests/database.scm (db-restart-evaluation!): New test.

* src/cuirass/templates.scm (build-details): Allow unconditionnal build
restart.

* src/cuirass/http.scm (url-handler): New route "/admin/build/<id>/restart".
* src/cuirass/template.scm (build-details): Add a "restart" button.

* src/cuirass/database.scm (db-restart-build!): New procedure.
* tests/database.scm (db-restart-build!): New test.

* src/cuirass/remote-server.scm (remote-server): Move the locale setup to the
publish thread.
* src/cuirass/remote-worker.scm (remote-worker): Ditto.
* src/cuirass/remote.scm (publish-server): Set the locale.

* src/cuirass/remote-server.scm (remote-server): Use a default locale.
* src/cuirass/remote-worker.scm (remote-worker): Ditto.

* src/cuirass/database.scm (db-register-builds): Remove commentary.

* tests/database.scm (%dummy-worker): Fix tests.

* src/cuirass/templates.scm (machine-status): Pick the first worker build if
multiple builds are started on the same worker.

* src/cuirass/database.scm (db-get-build-percentage): Consider both successful
and failing builds.

* src/cuirass/remote.scm (zmq-server-info, zmq-worker-request-info-message):
New procedures.
* src/cuirass/remote-server.scm (%log-port, %publish-port): New parameters.
(read-worker-exp): Handle 'worker-request-info message.
(remote-server): Set the new parameters.
* src/cuirass/remote-worker.scm (start-worker): Rename "server" argument. Send
a 'worker-request-info message to discover the server log port and publish
port.
(remote-worker): Adapt it.

bin/cuirass.in (%options): Fix "zabbix-uri" argument.

* bin/cuirass.in: Add "--zabbix-uri" argument.
* src/cuirass/zabbix.scm (%zabbix-uri): Export it.

* src/cuirass/database.scm (db-get-worker, db-get-workers): Return last-seen
field as integer.

* src/cuirass/remote.scm (swallow-zlib-error): New macro.
(send-log): Use it.

* src/cuirass/remote-worker.scm (remote-worker): Stop the avahi poll loop once
the workers are started.

* src/cuirass/database.scm (db-get-builds): Add missing parens.

* src/cuirass/database.scm (db-get-builds): Fix weather value.
* tests/http.scm (build-query-result): Adapt it.

* src/cuirass/templates.scm (specifications-table): Add RSS link.

* src/cuirass/templates.scm (evaluation-info-table): Add RSS link.

* src/cuirass/http.scm (url-handler): Pass the specification to
"db-get-builds" procedure.

This prevents the dates from being formatted using the current locale.

* bin/cuirass.in: Use a default locale.

* src/cuirass/http.scm (respond-xml): New procedure.
(url-handler): Use it for the RSS feed.

* src/cuirass/rss.scm: New file.
* Makefile.am (dist_pkgmodule_DATA): Add it.
* src/cuirass/http.scm (url-handler): Add "/events/rss" route.

* src/sql/upgrade-4.sql: New file.
* Makefile.am (dist_sql_DATA): Add it.
* src/schema.sql (Builds)[weather]: New field.
(Builds_weather_evaluation): New index.
* src/cuirass/database.scm (db-get-last-status): New procedure.
(db-update-build-status!): Use it and update the new weather field.
(db-get-builds): Adapt it.
* tests/http.scm (build-query-result): Ditto.

* src/cuirass/templates.scm (build-details): Move the weather icon.

* src/cuirass/remote-worker.scm (%workers-started?): New variable.
(remote-worker): Use it to start workers only once.