Fixes guix/guix#2213.  The 1.1-formatted-data is no longer available
from NIST.

* guix/cve.scm (string->date*, <cve-item>,
reference-data->cve-configuration, cpe-match->cve-configuration,
configuration-data->cve-configurations, json->cve-items,
yearly-feed-uri, cve-item->vulnerability): Upgrade to JSON 2.0 feeds
schema.
(<cve>): Remove uneeded record.
* tests/cve-sample.json: Update them. Remove CVE-2019-0005 (no value
added, lots of lines).
* tests/cve.scm (%expected-vulnerabilities): Upgrade accordingly.
(json->cve-items, vulnerabilities->lookup-proc tests): Update accordingly.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* guix/cve.scm: Exploit cpe vendors information.
(cpe->package-name): Rename to...
(cpe->package-identifier): Renamed from cpe->package-name. Use
cpe_vendor:cpe_name in place or cpe_name.
(vulnerabily-matches?): Add helper function.
(vulnerabilities->lookup-proc): Extract cpe_name for table
hashes. Add vendor and hidden-vendor arguments. Adapt condition to
pass vulnerabilities to result in the fold.
(write-cache, fetch-vulnerabilities): Update the format version.

* guix/lint.scm (package-vulnerabilities): Use additional arguments
from vulnerabilities->lookup-proc.

* tests/cve.scm (%expected-vulnerabilities): Adapt variable to changes
in guix/cve.scm.

Signed-off-by: Zheng Junjie <z572@z572.online>

The XML feed was discontinued on Oct. 16th, 2019:

  <https://nvd.nist.gov/General/News/XML-Vulnerability-Feed-Retirement-Phase-3>

* guix/cve.scm (string->date*): New procedure.
(<cve-item>, <cve>, <cve-reference>): New record types.
(cpe-match->cve-configuration, configuration-data->cve-configurations)
(json->cve-items, version-matches?): New procedures.
(yearly-feed-uri): Change URL to refer to JSON feed.
(cpe->product-alist, %parse-vulnerability-feed)
(xml->vulnerabilities): Remove.
(cve-configuration->package-list, merge-package-lists)
(cve-item->vulnerability, json->vulnerabilities): New procedures.
(write-cache): Use 'json->vulnerabilities' instead of
'xml->vulnerabilities', and remove 'parameterize'.
(vulnerabilities->lookup-proc): Use 'version-matches?' when VERSION is
true.
* tests/cve.scm (%sample): Use 'tests/cve-sample.json'.
(%expected-vulnerabilities): Rewrite accordingly.
("json->cve-items", "cve-item-published-date")
("json->vulnerabilities"): New tests.
("xml->vulnerabilities"): Remove.
("vulnerabilities->lookup-proc"): Adjust to new vulnerabilities.
* tests/cve-sample.json: New file.
* tests/cve-sample.xml: Remove.
* Makefile.am (EXTRA_DIST): Adjust accordingly.
* doc/guix.texi (Invoking guix lint): Update nist.gov URLs.

* tests/cve.scm (vulnerability): Use 'make-struct/no-tail' instead of
'make-struct', which is deprecated.
* tests/lint.scm ("cve: one vulnerability")
("cve: one patched vulnerability")
("cve: known safe from vulnerability")
("cve: vulnerability fixed in replacement version")
("cve: patched vulnerability in replacement"): Likewise.

On a warm cache, "guix lint -c cve vorbis-tools" goes down
from 6.5s to 2.4s.

* guix/cve.scm (cpe->package-name): Change to return two values instead
of a pair.
(cpe->product-alist): New procedure.
(%parse-vulnerability-feed): Use it instead of 'filter-map'.
(fetch-vulnerabilities): Bump sexp format version to 1.
(vulnerabilities->lookup-proc): Adjust accordingly.  When #:version is
omitted, return a list of vulnerabilities instead of a list of
version/vulnerability pairs.
* tests/cve.scm (%expected-vulnerabilities)
("vulnerabilities->lookup-proc): Adjust accordingly.

Before that '.log' files for scheme tests were fragmented and not
included in test-suite.log.  This unifies the semantics of SRFI-64 API
with Automake test suite.

* build-aux/test-driver.scm: New file.
* Makefile.am (SCM_LOG_DRIVER, AM_SCM_LOG_DRIVER_FLAGS): New variables.
(SCM_LOG_COMPILER, AM_SCM_LOG_FLAGS): Delete variables.
(AM_TESTS_ENVIRONMENT): Set GUILE_AUTO_COMPILE to 0.
* test-env.in: Silence guix-daemon.
* doc/guix.texi (Running the Test Suite): Describe how to display the
detailed results.  Bug reports require only 'test-suite.log' file.
* tests/base32.scm, tests/build-utils.scm, tests/builders.scm,
tests/challenge.scm, tests/cpan.scm, tests/cpio.scm, tests/cran.scm,
tests/cve.scm, tests/derivations.scm, tests/elpa.scm,
tests/file-systems.scm, tests/gem.scm, tests/gexp.scm,
tests/gnu-maintenance.scm, tests/grafts.scm, tests/graph.scm,
tests/gremlin.scm, tests/hackage.scm, tests/hash.scm,
tests/import-utils.scm, tests/lint.scm, tests/monads.scm, tests/nar.scm,
tests/packages.scm, tests/pk-crypto.scm, tests/pki.scm,
tests/profiles.scm, tests/publish.scm, tests/pypi.scm,
tests/records.scm, tests/scripts-build.scm, tests/scripts.scm,
tests/services.scm, tests/sets.scm, tests/size.scm, tests/snix.scm,
tests/store.scm, tests/substitute.scm, tests/syscalls.scm,
tests/system.scm, tests/ui.scm, tests/union.scm, tests/upstream.scm,
tests/utils.scm: Don't exit at the end of test groups.
* tests/containers.scm: Likewise.  Use 'test-skip' instead of exiting
with error code 77.

* guix/cve.scm, tests/cve-sample.xml, tests/cve.scm: New files.
* Makefile.am (MODULES): Add guix/cve.scm.
(SCM_TESTS): Add tests/cve.scm.
(EXTRA_DIST): Add tests/cve-sample.scm.