* guix/modules.scm (&missing-dependency-error): New error condition.
(source-module-dependencies): Raise it when 'search-path' returns #f.
* tests/modules.scm ("&missing-dependency-error"): New test.
Fixes <http://bugs.gnu.org/26975>.
Reported by Mark H Weaver <mhw@netris.org>.
* guix/scripts/publish.scm (bake-narinfo+nar): Pass #f as the 2nd
argument to 'stat' and properly handle #f.
* tests/publish.scm (wait-for-file): New procedure.
("with cache"): Remove 'wait-for-file' procedure.
("with cache, uncompressed"): New test.
Fixes <http://bugs.gnu.org/26949>.
Reported by Pjotr Prins <pjotr.public12@thebird.nl>.
* guix/build/union.scm (file-is-directory?): Return #f when FILE does
not exist or is a dangling symlink.
(file=?): Pass #f as a second argument to 'stat'; return #f when both
ST1 or ST2 is #f.
* tests/profiles.scm (test-equalm): New macro.
("union vs. dangling symlink"): New test.
* guix/import/cran.scm (package->upstream-name): Return #f if url
start and end index could not be determined.
(cran-package?): Check if the upstream-name can be extracted from
given package.
* tests/cran.scm: Add "r-minimal is not a cran package" to make sure that
r-minimal is not detected as a cran package.
This fixes a failure of guix refresh on r-minimal because no
upsteam-name can be determined from ".../R-version.tar.gz" uri.
* guix/scripts/publish.scm (not-found): Add #:phrase and #:ttl
parameters and honor them.
* tests/publish.scm ("with cache"): Check the 'cache-control' header on
of the 404 response.
* guix/scripts/publish.scm (narinfo-string): Add #:file-size parameter.
Produce a "FileSize" field when COMPRESSION is eq? to '%no-compression'
or when FILE-SIZE is true.
(bake-narinfo+nar): Pass #:file-size.
* tests/publish.scm ("/*.narinfo")
("/*.narinfo with properly encoded '+' sign")
("with cache"): Check for "FileSize".
This syntax had been deprecated since 2016-02-28.
* gnu/packages.scm (%find-package): Remove #:fallback? parameter and handling.
* tests/guix-build.sh: Remove test for "time-1.7" syntax.
* doc/guix.texi (Invoking guix lint): Update 'guix lint' output in example.
This is a followup to 9231ef12f2.
* tests/derivations.scm ("build-expression->derivation and builder
encoding"): Set '%default-port-encoding' to "UTF-8".
* tests/scripts-build.scm ("options->transformation, with-input"): Use
'specification->package' rather than refer to Coreutils by its
variable. This is a followup to e162050dfc.
Reported by Mark H Weaver <mhw@netris.org>
at <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00457.html>.
* guix/derivations.scm (build-expression->derivation): Use a string
output port for the expression. This reverts part of
2dce88d5bb.
* tests/derivations.scm ("build-expression->derivation and builder
encoding"): New test.
* guix/cache.scm, tests/cache.scm: New files.
* Makefile.am (MODULES, SCM_TESTS): Add them.
* guix/scripts/substitute.scm (obsolete?): Remove.
(remove-expired-cached-narinfos): Rename to...
(cached-narinfo-expiration-time): ... this. Remove the removal part and
only keep the expiration time part.
(narinfo-cache-directories): Add optional 'directory' parameter and
honor it.
(maybe-remove-expired-cached-narinfo): Remove.
(cached-narinfo-files): New procedure.
(guix-substitute): Use 'maybe-remove-expired-cache-entries' instead of
'maybe-remove-expired-cached-narinfo'.
Fixes <http://bugs.gnu.org/26201>.
Reported by <dian_cecht@zoho.com>.
These options allow nars to be "baked" off-line and cached instead of
being compressed on the fly. As a side-effect, this allows us to
provide a 'Content-Length' header for nars.
* guix/scripts/publish.scm (show-help, %options): Add '--cache' and
'--workers'.
(%default-options): Add 'workers'.
(nar-cache-file, narinfo-cache-file, run-single-baker): New procedures.
(single-baker): New macro.
(render-narinfo/cached, bake-narinfo+nar)
(render-nar/cached): New procedures.
(make-request-handler): Add #:cache and #:pool parameters and honor
them.
(run-publish-server): Likewise.
(guix-publish): Honor '--cache' and '--workers'.
* tests/publish.scm ("with cache"): New test.
* doc/guix.texi (Invoking guix publish): Document it.
* gnu/services.scm (&no-default-value): New variable.
(<service-type>)[default-value]: New field.
(<service>): Rename constructor from 'service' to 'make-service'.
(service): New macro.
(%service-with-default-value): New procedure.
(&missing-value-service-error): New error condition.
* tests/services.scm ("services, default value"): New test.
* doc/guix.texi (Service Types and Services): Document 'default-value'.
(Service Reference): Explain default values.
* guix/packages.scm (package-mapping): New procedure.
(package-input-rewriting): Rewrite in terms of 'package-mapping'.
* tests/packages.scm ("package-mapping"): New test.
* doc/guix.texi (Defining Packages): Document it.
Fixes a regression introduced in
3b88f3767d.
* tests/search-paths.scm ("evaluate-search-paths, separator is #f"):
Change the expected result to "aarch64-linux".
Reported by Thomas Sigurdsen <thomas.sigurdsen@gmail.com>
at <https://lists.gnu.org/archive/html/help-guix/2017-04/msg00007.html>.
* guix/packages.scm (expand-input): Add 'guard' form around call to
'package-source-derivation'.
* tests/packages.scm (dummy): New test.
This avoids connections to substitute servers for derivations that are
not substitutable anyway, such as profiles.
Reported by Andy Wingo.
* guix/derivations.scm (substitution-oracle): Skip derivations that do
not pass 'substitutable-derivation?'.
* tests/derivations.scm ("substitution-oracle and #:substitute? #f"):
New test.
* guix/ui.scm (package-field-string): New procedure.
(package-description-string): Use it.
(package-synopsis-string): New procedure.
(package->recutils): Use it.
* guix/scripts/lint.scm (check-synopsis-style)[check-texinfo-markup]:
New procedure. Use it in checks.
* tests/lint.scm: Test it.
* gnu/packages/perl.scm (perl-try-tiny)[synopsis]: Adjust for the
Texinfo markup.
Fixes a mistake in a9a0227c01.
* tests/store.scm ("current-build-output-port, UTF-8 + garbage"):
Inverse the 'cond-expand' clauses since the 'guile-2.0' feature doesn't
exist.
Fixes a regression introduced in
7208995426 whereby (gnu system
file-systems) would pull in (gnu packages …) module, which in turn
breaks when importing things like (gnu build shepherd).
* gnu/system/file-systems.scm (file-system-type-predicate): Export.
(file-system-packages): Move to...
* gnu/system/linux-initrd.scm (file-system-packages): ... here. Add
docstring.
* gnu/services/base.scm: Use it.
* tests/file-systems.scm ("does not pull (gnu packages …)"): New test.
* guix/scripts/pack.scm (<compressor>)[package]: Remove.
[command]: Document as being a gexp with an absolute file name.
(%compressors): Adjust accordingly.
(self-contained-tarball): Simplify PATH expression. Move 'string-join'
for the compressor command on the build side.
(docker-image): Simplify PATH expression.
* tests/pack.scm (%gzip-compressor): Adjust accordingly.
* guix/gexp.scm (imported-files)[file-pair]: Add case for pairs where
the cdr is not a string.
(imported-modules): Support '=>' syntax in MODULES.
* tests/gexp.scm ("imported-files with file-like objects")
("gexp->derivation & with-imported-module & computed module"): New tests.
* doc/guix.texi (G-Expressions): Document '=>' syntax for
'with-imported-modules'.
In 2.2, 'fport_close' no longer swallows EBADF and instead raises a
'system-error' for this. This commit adjusts for 2.2.
* guix/zlib.scm (close-procedure): Remove.
(make-gzip-input-port): Use 'port->fdes' instead of 'fileno'.
Use 'gzclose' instead of 'close-procedure'.
(make-gzip-output-port): Likewise.
* tests/zlib.scm ("compression/decompression pipe"): Don't check whether
PARENT is closed using 'port-closed?'. Instead, use 'seek' on the
underlying FD and check for EBADF.
* guix/scripts/pack.scm (self-contained-tarball): Add #:tar option.
[build](tar-supports-sort?): New variable. Use it.
* tests/pack.scm: New file.
* Makefile.am (SCM_TESTS): Add it.
* guix/ui.scm (right-arrow): Call 'set-port-encoding!' to set PORT's
encoding; remove use of 'with-fluids'. This is for compatibility with
Guile 2.2 where the encoding of string ports is not influenced by
%DEFAULT-PORT-ENCODING.
* tests/ui.scm ("show-manifest-transaction"): Likewise.
Slightly different buffering of custom binary output ports in Guile 2.1.7
would lead tests missing 'close-port' or 'force-output' to fail.
* tests/hash.scm ("open-sha256-port, hello"): Add call to 'force-output'
before call to 'get'.
* tests/nar.scm ("write-file puts file in C locale collation order"):
Call 'close-port' before calling 'get-hash'.
This is a followup to commit 81e0bc1834.
* tests/cpan.scm ("cpan->guix-package"): Add a 'rest' argument to the
lambda that mocks 'http-fetch'.
* tests/crate.scm ("crate->guix-package"): Likewise.
* tests/gem.scm ("gem->guix-package"): Likewise.
* tests/pypi.scm ("pypi->guix-package"): Likewise.
("pypi->guix-package, wheels"): Likewise.
Partly fixes <http://bugs.gnu.org/25476>.
Reported by Paul Garlick <pgarlick@tourbillion-technology.com>.
* tests/syscalls.scm ("utmpx-entries"): Check whether ENTRY is of type
'BOOT_TIME', in which case PID may be 0.
Fixes <https://bugs.gnu.org/25635>.
Reported by Sergei Trofimovich <slyfox@inbox.ru>.
* guix/import/pypi.scm (guix-package->pypi-name)[url->pypi-name]: New
procedure.
Rewrite body to match lists in addition to strings.
* tests/pypi.scm ("guix-package->pypi-name, several URLs"): New test.
* gnu/build/linux-container.scm (container-excursion*): New procedure.
* tests/containers.scm ("container-excursion*")
("container-excursion*, same namespaces"): New tests.
(gnu system file-systems) is used on the "build" side since commit
5970e8e248.
* gnu/system/file-systems.scm: Remove dependency on (guix store).
(%store-prefix): New procedure.
* tests/file-systems.scm ("does not pull (guix config)"): New test.
* guix/serialization.scm (write-bytevector): New procedure.
(write-string): Rewrite in terms of 'write-bytevector'.
* guix/store.scm (write-arg): Add 'bytevector' case.
(add-data-to-store): New procedure, from former 'add-text-to-store'.
(add-text-to-store): Rewrite in terms of 'add-data-to-store'.
* tests/store.scm ("add-data-to-store"): New test.
This is a followup to 2f977d92d3.
* tests/pypi.scm ("pypi->guix-package"): Don't expect 'python-setuptools' in
'propagated-inputs'.
("pypi->guix-package, wheels"): Likewise.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
Fixes <http://bugs.gnu.org/24886>.
Previously, the grafting derivation of, say, brdf-explorer would pull in
qt:doc even though brdf-explorer depends only on qt:out, not qt:doc.
* guix/grafts.scm (with-cache): Use 'vhash-assoc' and 'vhash-cons'
instead of 'vhash-assq' and 'vhash-consq'.
(cumulative-grafts): Pass #:outputs to 'graft-derivation/shallow'. Use
OUTPUTS instead of (derivation-output-names drv).
(graft-derivation): Add #:outputs parameter; pass it to
'cumulative-grafts'.
* tests/grafts.scm (make-derivation-input): New variable.
("graft-derivation, replaced derivation has multiple outputs"): Make
sure P2:zzz is not part of the outputs of P3D.
("graft-derivation with #:outputs")
("graft-derivation, unused outputs not depended on"): New tests.
This adds support for single-entry search paths.
Fixes <http://bugs.gnu.org/25422>.
Reported by Leo Famulari <leo@famulari.name>.
* guix/search-paths.scm (<search-path-specification>)[separator]:
Document as string or #f.
(evaluate-search-paths): Add case for SEPARATOR as #f.
(environment-variable-definition): Handle SEPARATOR being #f.
* guix/build/utils.scm (list->search-path-as-string): Add case for
SEPARATOR as #f.
(search-path-as-string->list): Likewise.
* guix/build/profiles.scm (abstract-profile): Likewise.
* tests/search-paths.scm: New file.
* Makefile.am (SCM_TESTS): Add it.
* tests/packages.scm ("--search-paths with single-item search path"):
New test.
* gnu/packages/version-control.scm (git)[native-search-paths](separator):
New field.
* guix/build/syscalls.scm (<utmpx-entry>): New record type.
(%utmpx): New C struct.
(login-type): New bits.
(setutxent, endutxent, getutxent, utmpx-entries): New procedures.
Reported by Chris Webber.
* guix/scripts/build.scm (register-root): If ROOT is absolute, keep it
as is.
* guix/scripts/environment.scm (register-gc-root): Likewise.
* tests/guix-environment.sh (expected): Add test.
Suggested by John Darrington <john@darrington.wattle.id.au>.
* gnu/system/file-systems.scm (%not-slash): New variable.
(file-prefix?): New procedure.
(file-system-needed-for-boot?): Use it to check whether FS holds the
store.
* tests/file-systems.scm ("file-system-needed-for-boot?"): New test.
* gnu/tests/install.scm (%separate-store-os)[file-systems]: Remove
'needed-for-boot?' field for "/gnu".
Fixes <http://bugs.gnu.org/20217>.
* nix/libstore/worker-protocol.hh (PROTOCOL_VERSION): Bump to 0x161.
* nix/nix-daemon/nix-daemon.cc (performOp): "build-max-jobs",
"build-max-silent-time", and "build-cores" are no longer read upfront;
instead, read them from the key/value list at the end.
* nix/nix-daemon/guix-daemon.cc (main): Explicitly set
'settings.maxBuildJobs'.
* guix/store.scm (%protocol-version): Bump to #x161.
(set-build-options): #:max-build-jobs, #:max-silent-time, and
#:build-cores now default to #f. Adjust handshake to new protocol.
* tests/store.scm ("build-cores"): New test.
* tests/guix-daemon.sh: Add test for default "build-cores" value.
This makes it easier to distinguish between matches, mismatches, and the
various cases of inconclusive reports.
* guix/scripts/challenge.scm (<discrepancy>): Rename to...
(<comparison-report>): ... this. Add 'result' field.
(comparison-report): New macro.
(comparison-report-predicate, comparison-report-mismatch?)
(comparison-report-match?)
(comparison-report-inconclusive?): New procedures.
(discrepancies): Rename to...
(compare-contents): ... this. Change to return a list of
<comparison-report>. Remove calls to 'warning'.
(summarize-discrepancy): Rename to...
(summarize-report): ... this. Adjust to <comparison-report>.
(guix-challenge): Likewise.
* tests/challenge.scm ("no discrepancies")
("one discrepancy"): Adjust to new API.
("inconclusive: no substitutes")
("inconclusive: no local build"): New tests.
* guix/utils.scm (package-name->name+version): Add optional 'delimiter'
parameter.
* guix/scripts/package.scm (store-item->manifest-entry): Pass #\- as the
delimiter for 'package-name->name+version'. Use "out" instead of #f for
the 'output' field.
* tests/guix-package.sh: Add test.
* guix/build-system/cargo.scm (cargo-build): Add src output.
(private-keywords): Add #:outputs.
* guix/build/cargo-build-system.scm (configure): Use /share/rust-source
when replacing inputs.
(build, check): Don't do anything when there isn't a Cargo.lock file
present.
(install): Install sources to src output. When a Cargo.lock file is
present use cargo install to install binaries to out.
* guix/import/crate.scm (make-crate-sexp): Importer uses the src output
for crate inputs by default.
* guix/import/utils.scm (package-names->package-inputs, maybe-inputs,
maybe-native-inputs): Take an optional output argument.
* tests/crate.scm (crate->guix-package test): Update.
Problem reported by Francisco Gómez García <espectalll@kydara.com>.
* guix/import/crate.scm (make-crate-sexp): Provide a default home-page
value.
* tests/crate.scm (test-crate): Add repository field.
Problem reported by ng0 <ng0@libertad.pw>.
* guix/scripts/build.scm (package-with-source): Set 'replacement' to #f.
* tests/scripts-build.scm ("options->transformation, with-source,
replacement"): New test.
Previously, 'gexp-native-inputs' would not return the native inputs of
nested gexps. For example, this:
(gexp-native-inputs #~(foo #$#~(bar #+coreutils)))
would return '().
* guix/gexp.scm (gexp-inputs)[add-reference-inputs]: In the
non-recursive cases, check whether N? and NATIVE? are the same, and act
accordingly.
[native-input?]: Remove.
Fold over all of (gexp-references exp).
* tests/gexp.scm ("ungexp + ungexp-native, nested, special mixture"):
New test.
* tests/gexp.scm ("input list splicing + ungexp-native-splicing"): Pass
#:native? #t to 'gexp-input'.
This is a follow-up to commit 63773200d7.
* tests/gem.scm ("gem->guix-package"): Replace mock definition of
"url-fetch" with "http-fetch".
* tests/pypi.scm ("pypi->guix-package"): Add mock definition of
"http-fetch".
Commit 1af0860e8b added a mandatory
dependency on 'glibc-utf8-locales', which entails long rebuilds for
tests.
* guix/profiles.scm (profile-derivation): Add #:locales? parameter.
Add 'set-utf8-locale' variable. Use it when LOCALES? is true.
(link-to-empty-profile): Pass #:locales? #f.
* guix/scripts/environment.scm (inputs->profile-derivation): Pass
#:locales?.
* guix/scripts/package.scm (build-and-use-profile): Likewise.
* tests/packages.scm ("--search-paths with pattern"): Pass #:locales? #f.
* tests/profiles.scm ("profile-derivation")
("profile-derivation, inputs", "profile-manifest, search-paths")
("etc/profile", "etc/profile when etc/ already exists"):
("etc/profile when etc/ is a symlink"): Likewise.
* guix/graph.scm (<graph-backend>): Add fields "name" and "description".
(%graphviz-backend): Provide values for name and description.
(export-graph): Ignore name and description when matching backends.
(graph-backend-name, graph-backend-description): New procedures.
* tests/graph.scm (make-recording-backend): Initialize name and
description fields of test graph-backend.
* guix/store.scm (open-connection): Guard body against 'nar-error?' and
re-raise as '&nix-connection-error'.
* tests/store.scm ("connection handshake error"): New test.
* guix/build/syscalls.scm (SIOCADDRT, SIOCDELRT): New variables.
(%rtentry): New C struct.
(RTF_UP, RTF_GATEWAY, %sockaddr-any): New variables.
(add-network-route/gateway, delete-network-route): New procedures.
* tests/syscalls.scm ("add-network-route/gateway")
("delete-network-route"): New tests.
* guix/scripts/lint.scm (origin-uris): New procedure.
(check-source): Use it.
(check-mirror-url): New procedure.
(%checkers): Add 'mirror-url' checker.
* tests/lint.scm ("mirror-url")
("mirror-url: one suggestion"): New tests.
* doc/guix.texi (Invoking guix lint): Document it.
* tests/lint.scm (%http-server-port, %local-url)
(%http-server-socket, http-write, %http-server-lock)
(%http-server-ready, http-open, stub-http-server)
(call-with-http-server, with-http-server): Move to (guix tests http).
Adjust tests for %HTTP-SERVER-SOCKET as a promise and %LOCAL-URL as a
parameter.
* guix/tests/http.scm: New file.
* Makefile.am (dist_noinst_DATA): Add it.
(GOBJECTS): Add .go files for all of $(dist_noinst_DATA).
(make-go): Depend on $(dist_noinst_DATA).
Also refactor some common code into a new function.
Examples for these pacakges are python(2)-setuptools and python(2)-pip, which
are installed together with python itself.
* guix/scripts/lint.scm (warn-if-package-has-input): New procedure.
(check-inputs-should-be-native package): Use it; rename and clean-up
variables. (check-inputs-should-not-be-an-input-at-all): New procedure.
(%checkers) Add it.
* doc/guix.texi (Python Modules): Document it.
* tests/lint.scm: ("inputs: python-setuptools should not be an input at all
(input)", "inputs: python-setuptools should not be an input at all
(native-input)" "inputs: python-setuptools should not be an input at all
(propagated-input)"): Add tests.
* gnu/build/linux-container.scm (mount-file-systems): 'mounts' is now a
list of <file-system> objects instead of a list of lists ("specs").
Add call to 'file-system->spec' as the argument to 'mount-file-system'.
(run-container, call-with-container): Adjust docstring accordingly.
* gnu/system/file-systems.scm (spec->file-system): New procedure.
* gnu/system/linux-container.scm (container-script)[script]: Call
'spec->file-system' inside gexp.
* guix/scripts/environment.scm (launch-environment/container): Remove
call to 'file-system->spec'.
* tests/containers.scm ("call-with-container, mnt namespace")
("call-with-container, mnt namespace, wrong bind mount"): Pass a list of
<file-system> objects.
This is a followup to bc3c41ce36.
* tests/cpan.scm ("cpan->guix-package"): Add #:verify-certificate?
parameter in 'url-fetch' mock.
* tests/cran.scm ("description->package"): Likewise.
This is a followup to b5c347ad3d.
* tests/pypi.scm ("pypi->guix-package"): Expect 'propagated-inputs', not
'inputs'.
("pypi->guix-package, wheels"): Likewise.
* guix/scripts/lint.scm (%quoted-identifier-rx): New variable.
(check-description-style)[check-quotes]: New procedure.
Use it.
* tests/lint.scm ("description: suggest ornament instead of quotes"):
New test.
Before that, 'container-excursion' would call 'setns' even when the
target namespace is the one the caller is already in, which would fail.
* gnu/build/linux-container.scm (container-excursion): Introduce
'source' and 'target'. Compare the result of 'readlink' on these
instead of comparing file descriptors to decide whether to call
'setns'.
* tests/containers.scm ("container-excursion, same namespace"): New test.
Fixes <http://bugs.gnu.org/24712>.
* guix/grafts.scm (cumulative-grafts): Add grafts for all the outputs of
DRV.
* tests/grafts.scm ("graft-derivation, replaced derivation has multiple
outputs"): New test.
* guix/scripts/graph.scm (ensure-store-items): New procedure.
(%reference-node-type)[convert]: Use it.
(non-derivation-referrers): New procedure.
(%referrer-node-type): New variable.
(%node-types): Add it.
* tests/graph.scm ("referrer DAG"): New test.
* doc/guix.texi (Invoking guix graph): Document it.
Partly fixes <http://bugs.gnu.org/24418>.
* guix/grafts.scm (cumulative-grafts)[graft-origin?]: New procedure.
[dependency-grafts]: Use it in new 'if' around recursive call.
* tests/grafts.scm ("graft-derivation, grafts are not shadowed"): New test.
Before, 'guix lint -c cve' would report the vulnerabilities of the
original package while pretending they are the vulnerabilities of the
replacement.
* guix/scripts/lint.scm (check-vulnerabilities): Consider the package
replacement before calling 'package-vulnerabilities'.
* tests/lint.scm ("cve: vulnerability fixed in replacement version"):
New test.
* guix/build/graft.scm (replace-store-references): REPLACEMENT is now
the full string, not just the hash.
(rewrite-directory)[hash-mapping](valid-suffix?): Remove.
(hash+suffix): Rename to...
(hash+rest): ... this. Change to return the whole string as the second
element of the list. Adjust 'match-lambda' expression accordingly;
check whether the string length of the origin and replacement match.
* tests/grafts.scm ("graft-derivation, grafted item uses a different
name"): New test.
* doc/guix.texi (Security Updates): Update sentence on the name/version
restriction.
This is a followup to 8a54c0ec69.
* tests/guix-build.sh: Allow 'guix build -S' to succeed with source-less
packages. Check that the result is the empty string.
* guix/gexp.scm (<file-append>): New record type.
(file-append): New procedure.
(file-append-compiler): New gexp compiler.
* tests/gexp.scm ("file-append", "file-append, output")
("file-append, nested", "gexp->file + file-append"): New tests.
* doc/guix.texi (G-Expressions): Use it in 'nscd' and 'list-files'
examples. Document 'file-append'.
* guix/build/utils.scm (wrap-program)[wrapper-file-name]
[next-wrapper-number, wrapper-target]: Remove.
[wrapped-file, already-wrapped?]: New variables.
[last-line]: New procedure.
Use it to append to PROG when a wrapper already exists.
* tests/build-utils.scm ("wrap-program, one input, multiple calls"):
Adjust the list of files to delete.
This provides a way to mark a package as superseded by another one.
Upgrades replace superseded packages with their replacement.
* guix/packages.scm (package-superseded, deprecated-package): New
procedures.
* gnu/packages.scm (%find-package): Check for 'package-superseded'.
* guix/scripts/package.scm (transaction-upgrade-entry)[supersede]: New
procedure. Call it when 'package-superseded' is true.
* tests/guix-build.sh: Add test for a superseded package.
* tests/packages.scm ("package-superseded")
("transaction-upgrade-entry, superseded package"): New tests.
* guix/scripts/package.scm (upgraded-manifest-entry): Rename to...
(transaction-upgrade-entry): ... this. Add 'transaction' parameter and
return a transaction.
(options->installable): Likewise.
[to-upgrade]: Rename to...
[upgraded]: ... this, and change to be a transaction. Return a
transaction.
(options->removable): Likewise.
(process-actions): Adjust accordingly.
* tests/packages.scm ("transaction-upgrade-entry, zero upgrades")
("transaction-upgrade-entry, one upgrade"): New tests.
* guix/modules.scm, tests/modules.scm: New files.
* Makefile.am (MODULES, SCM_TESTS): Add them.
* doc/guix.texi (G-Expressions): Add an example of
'source-module-closure'.
