Reported by Danny Milosavljevic.
* src/cuirass/http.scm (url-handler) <"jobsets"> Return the result of
'db-get-specifications' as-is, not just the car.
This should placate 'guix-hydra-queued-builds', for instance, which
checks these values to choose between "Running" and "Scheduled".
* src/cuirass/http.scm (build->hydra-build): Provide the correct value
for #:finished and #:busy.
* src/cuirass/logging.scm (call-with-time-logging): New procedure.
(with-time-logging): New macro.
* src/cuirass/http.scm (handle-builds-request): Use it.
* src/cuirass/database.scm (db-get-builds)[format-order-clause]: Add
'order' clauses.
* src/cuirass/http.scm (url-handler): Default to (order finish-time) for
/latestbuilds and (order submission-time) for /queue.
* src/cuirass/http.scm (url-handler): Add /api/queue handler.
* tests/http.scm ("http"): Add a BUILD2 and DERIVATION2, and rename
BUILD and DERIVATION accordingly.
("/build/2", "/build/2/log/raw"): Rename to /42.
("/api/queue?nr=100"): New test.
* README: Mark Fibers as required.
* configure.ac: Check for Guile 2.2 only. Check for (fibers).
* bin/cuirass.in (main): Use (fibers). Run 'process-specs' and web
server in separate fibers.
* src/cuirass/base.scm (with-store): New macro.
(non-blocking-port): New procedure.
(evaluate): Use 'non-blocking-port'. Use 'read-string' followed by 'read'.
(process-specs): Move 'db-add-stamp' right after 'string=?' comparison.
Run evaluation and subsequent builds in a separate fiber.
* src/cuirass/http.scm (run-cuirass-server): Pass 'fibers as the second
argument to 'run-server'. Use 'log-message' instead of 'format'.
* src/cuirass/database.scm (with-database): Remove 'dynamic-wind'.
This moves log handling responsibility to 'guix publish'.
* src/cuirass/http.scm (handle-log-request): Remove.
(url-handler): Change /log/raw URI handler to return 302 to /log/OUTPUT.
* tests/http.scm (log-file-name): Remove, and remove code to create and
delete it.
("fill-db"): Change #:log value.
("/build/1/log/raw"): Expect 302.
* doc/cuirass.texi (Sections)[Web API]: New section describing the HTTP API.
* src/cuirass/http.scm (spec->json-string): Move it to utils.scm and rename it
object->json-string.
(object->json-scm): Move it utils.scm.
(handle-*-request): New helpers procedures.
(request-parameters): New procedure to parse a request query.
(url-handler): Add new API's.
* src/cuirass/utils.scm (object->json-scm, object->json-string): Exported
procedures moved from http.scm.
* tests/http.scm: Add various tests on new HTTP API.
* bin/cuirass.in (%options): Add "--port" and "-p" command line options.
(show-help): Adapt.
(main): Set default to 8080. Call 'run-cuirass-server' with this.
* src/cuirass/http.scm (run-cuirass-server): Display the port number.
* doc/cuirass.texi (Invocation): Document new option.
