* guix/scripts/pack.scm (squashfs-image)[database]: New variable.
[build]: Add (gnu build install) to the closure. Call
'install-database-and-gc-roots' when DATABASE is true, and invoke
mksquashfs once more.
* tests/pack.scm ("squashfs-image + localstatedir"): New test.
* guix/docker.scm (build-docker-image): Add #:database parameter.
Create /var/guix/db, /var/guix/profiles, etc. when DATABASE is true.
* guix/scripts/pack.scm (docker-image): Export. Remove #:deduplicate?
parameter. Define 'database' and pass it to 'docker-image'.
* tests/pack.scm (test-assertm): Recompile the derivation of
%BOOTSTRAP-GUILE.
("docker-image + localstatedir"): New test.
This is another way to address <https://bugs.gnu.org/32184>, which was
previously addressed in commit 19c924af4f.
* gnu/build/install.scm (register-closure): Move to...
* gnu/build/vm.scm (register-closure): ... here. New procedure.
* guix/scripts/pack.scm (self-contained-tarball)[build]: Remove
now unneeded 'with-extensions' form and custom (guix config) module.
* tests/guix-pack.sh: Revert the strategy from
commit 19c924af4f.
* tests/pack.scm ("self-contained-tarball"): Likewise.
Fixes <https://bugs.gnu.org/32966>.
Reported by Clément Lassieur <clement@lassieur.org>.
* guix/gexp.scm (gexp-attribute): Add 'equal?' optional parameter; pass
it to 'delete-duplicates'.
(gexp-modules)[module=?]: New procedure.
Pass it to 'gexp-attribute'.
* tests/gexp.scm ("gexp-modules deletes duplicates"): New test.
Fixes <https://bugs.gnu.org/32184>.
* guix/tests.scm (call-with-external-store): New procedure.
(with-external-store): New macro.
* tests/pack.scm (%store): Remove.
(test-assertm): Add 'store' parameter.
("self-contained-tarball"): Wrap in 'with-external-store'.
* tests/guix-pack.sh: Connect to the external store, if possible, by
setting NIX_STORE_DIR and GUIX_DAEMON_SOCKET. Remove most uses of
'--bootstrap'.
* guix/status.scm (build-event-output-port)[guile@2.0]: Do not call 'setvbuf'
on custom binary port.
* tests/status.scm (current-build-output-port, UTF-8 + garbage)[guile@2.0]:
Use "?" in place of REPLACEMENT CHARACTER.
This allows for more accurate status tracking and parsing of extended
build traces.
* guix/status.scm (multiplexed-output-supported?): New procedure.
(print-build-event): Don't print \r when PRINT-LOG? is true.
Adjust 'build-log' handling for when 'multiplexed-output-supported?'
returns true.
(bytevector-index, split-lines): New procedures.
(build-event-output-port)[%build-output-pid, %build-output]
[%build-output-left]: New variables.
[process-line]: Handle "@ build-output" traces.
[process-build-output]: New procedure.
[write!]: Add case for when %BUILD-OUTPUT-PID is true. Use
'bytevector-index' rather than 'string-index'.
(compute-status): Add #:derivation-path->output-path. Use it.
* tests/status.scm ("compute-status, multiplexed build output"):
New test.
("build-output-port, UTF-8")
("current-build-output-port, UTF-8 + garbage"): Adjust to new
'build-log' output.
* guix/scripts/build.scm (set-build-options-from-command-line):
Pass #:multiplexed-build-output?.
(%default-options): Add 'multiplexed-build-output?'.
* guix/scripts/environment.scm (%default-options): Likewise.
* guix/scripts/pack.scm (%default-options): Likewise.
* guix/scripts/package.scm (%default-options): Likewise.
* guix/scripts/pull.scm (%default-options): Likewise.
* guix/scripts/system.scm (%default-options): Likewise.
This allows clients to tell whether output comes from the daemon or, if
it comes from a builder, from which builder it comes. The latter is
particularly useful when MAX-BUILD-JOBS > 1.
* nix/libstore/build.cc (DerivationGoal::tryBuildHook)
(DerivationGoal::startBuilder): Print the child's PID in "@ build-started"
traces.
(DerivationGoal::handleChildOutput): Define 'prefix', pass it to
'writeToStderr'.
* nix/libstore/globals.cc (Settings:Settings): Initialize
'multiplexedBuildOutput'.
(Settings::update): Likewise.
* nix/libstore/globals.hh (Settings)[multiplexedBuildOutput]: New field.
Update 'printBuildTrace' documentation.
* nix/libstore/worker-protocol.hh (PROTOCOL_VERSION): Bump to 0.163.
* nix/nix-daemon/nix-daemon.cc (performOp) <wopSetOptions>: Special-case
"multiplexed-build-output" and remove "use-ssh-substituter".
* guix/store.scm (set-build-options): Add #:multiplexed-build-output?
and honor it.
(%protocol-version): Bump to #x163.
* tests/store.scm ("multiplexed-build-output"): New test.
fixlet
* guix/status.scm (maybe-utf8->string): New procedure.
(build-event-output-port): Use it in lieu of 'utf8->string'.
* tests/status.scm ("build-output-port, UTF-8")
("current-build-output-port, UTF-8 + garbage"): New tests.
This is a followup to 4245ddcbc9.
* tests/services.scm ("shepherd-service-upgrade: one unchanged, one upgraded, one new")
("shepherd-service-upgrade: service depended on is not unloaded")
("shepherd-service-upgrade: obsolete services that depend on each
other"): Adjust to changes in 'shepherd-service-upgrade'.
This is a followup to a387b0bebb.
* tests/gexp.scm ("gexp->derivation, store copy")
("gexp->derivation #:references-graphs"): Add (guix progress) and (guix
records) to the imported modules.
* guix/profiles.scm (packages->manifest)[inferiors-loaded?]: New
variable.
[inferior->entry]: New procedure.
Accept inferior packages when INFERIORS-LOADED? is true.
* tests/guix-package.sh: Add test using a manifest with an inferior.
* tests/inferior.scm ("packages->manifest"): New test.
* guix/inferior.scm (inferior-package->manifest-entry): New procedure.
* tests/inferior.scm (manifest-entry->list): New procedure.
("inferior-package->manifest-entry"): New test.
* guix/inferior.scm (<inferior>)[packages, table]: New fields.
(open-inferior): Initialize these new fields.
(inferior-packages): Rename to...
(%inferior-packages): ... this.
(inferior-packages): New procedure; force the promise.
(%inferior-package-table, lookup-inferior-packages): New procedures.
* tests/inferior.scm ("lookup-inferior-packages")
("lookup-inferior-packages and eq?-ness"): New tests.
* guix/inferior.scm (read-inferior-response)
(send-inferior-request): New procedures.
(inferior-eval): Rewrite in terms of these.
(proxy, inferior-package-derivation, inferior-package->derivation)
(package-compiler): New procedures.
* tests/inferior.scm ("inferior-package-derivation"): New test.
Fixes <https://bugs.gnu.org/32686>.
Reported by Oleg Pykhalov <go.wigust@gmail.com>.
* guix/build/profiles.scm (ensure-writable-directory): Add #:symlink.
[absolute?]: New procedure.
[unsymlink]: Use it to determine how to resolve readlink's result.
(build-profile): Pass SYMLINK to 'ensure-writable-directory'.
* tests/profiles.scm ("profile-derivation when etc/ is a relative symlink"):
New test.
Fixes a bug whereby services indirectly depended on would not be
automatically instantiated.
* gnu/services.scm (instantiate-missing-services): Loop back when the
length of ADJUSTED is greater than that of INSTANCES.
* tests/services.scm ("instantiate-missing-services, indirect"): New test.
Fixes <https://bugs.gnu.org/32652>.
* gnu/system/vm.scm (operating-system-uuid)[service-name,
file-system-digest]: New procedures.
Map these over services and file systems and hash the result.
* tests/guix-system.sh: Add test.
Fixes a test failure introduced in
de5cbd4a38.
* guix/records.scm (abi-check): Refer to TYPE in an unquoted context so
we get at the RTD.
* tests/records.scm ("ABI checks"): Adjust 'catch' handler to changes
in the 'record-abi-mismatch-error' arguments.
Fixes <https://bugs.gnu.org/19973>.
Reported by Mark H Weaver <mhw@netris.org>.
* guix/build/debug-link.scm: New file.
* guix/build/graft.scm (%graft-hooks): New variable.
(graft): Add #:hooks and honor it.
* guix/grafts.scm (graft-derivation/shallow): Add (guix build
debug-link) and (guix elf) to #:modules.
* tests/debug-link.scm: New file.
* Makefile.am (MODULES): Add guix/build/debug-link.scm.
(SCM_TESTS): Add tests/debug-link.scm.
* tests/gremlin.scm (%guile-executable): Use /proc/self/exe instead
of (command-line). For a while now, the first element of (command-line)
was "./build-aux/test-driver.scm"; consequently the test was always
skipped.
Previously, store items registered in the database by this code (for
instance, store items retrieved by 'guix offload' and passed to
'restore-file-set') would have an mtime of 0 instead of 1.
This would cause problems for things like .go files: Guile would
consider them to be older than the corresponding .scm file, and
consequently it would ignore them and possibly use another (incorrect)
.go file.
Reported by Ricardo Wurmus.
* guix/store/database.scm (reset-timestamps): Pass 1, not 0, to
'utime'.
* tests/store-database.scm ("register-path"): Check the mtime of FILE
and REF.
* guix/hash.scm (open-sha256-port)[position]: New variable.
[get-position]: New procedure.
Pass it to 'make-custom-binary-output-port'.
* tests/hash.scm ("open-sha256-port, hello"): Test 'port-position'.
* guix/gexp.scm (imported-files/derivation): Add #:symlink? and honor
it.
(imported-files): Pass #:symlink? to 'imported-files/derivation'.
* tests/gexp.scm ("imported-files with file-like objects"): Add 'file=?'
and use it instead of calling 'readlink'.
* guix/gexp.scm (gexp->derivation): Add #:import-creates-derivation?.
Pass #:derivation? to 'imported-modules' and 'compiled-modules'. In -L
argument, check whether MODULES is a derivation.
(%not-slash): New variable.
(file-mapping->tree): New procedure.
(imported-files): Rename to...
(imported-files/derivation): ... this.
(imported-files): New procedure. Rewrite in terms of
'interned-file-tree' when possible; add #:derivation? parameter.
(imported-modules, compiled-modules): Add #:derivation? parameter and
pass it to 'imported-files'.
* guix/packages.scm (patch-and-repack): Pass
#:import-creates-derivation? to 'gexp->derivation'.
* tests/gexp.scm ("imported-files"): Adjust to no longer expect a
derivation.
* guix/store.scm (%not-slash): New variable.
(add-file-tree-to-store, interned-file-tree): New procedures.
* tests/store.scm ("add-file-tree-to-store"): New test.
* guix/serialization.scm (write-contents-from-port): New procedure.
(write-contents): Write in terms of 'write-contents-from-port'.
(filter/sort-directory-entries, write-file-tree): New procedures.
(write-file): Rewrite in terms of 'write-file-tree'.
* tests/nar.scm ("write-file-tree + restore-file"): New test.
Reported by Roel Janssen <roel@gnu.org>
at <https://lists.gnu.org/archive/html/guix-devel/2018-07/msg00036.html>.
* guix/profiles.scm (switch-to-generation): Use (basename generation) as
the symlink target.
* guix/scripts/package.scm (build-and-use-profile): Likewise,
use (basename name) as the symlink target.
* tests/guix-package.sh: Adjust --roll-back test accordingly. Add
explicitly test with '-p foo/prof'.
* guix/import/cabal.scm (eval-cabal): Modify.
* tests/hackage.scm (test-cabal-4): New variable and test.
(test-cabal-5): New variable and test.
(test-cabal-6): New variable and test.
Previously they'd always be placed next to TO-REPLACE, which would lead
to EPERM in some cases.
* guix/store/deduplication.scm (replace-with-link): Add #:swap-directory
parameter and honor it. Add call to 'make-file-writable'. Catch
'system-error' around 'rename-file'.
(deduplicate): Pass #:swap-directory and remove uses of
'false-if-system-error'.
* tests/store-deduplication.scm ("deduplicate"): Add 'chmod' call.
Fixes <https://bugs.gnu.org/31889>.
Reported by Taylan Kammer <taylanbayirli@gmail.com>.
* gnu/system.scm (non-boot-file-system-service)[mapped-devices-for-boot]:
New variable.
Remove dependencies of FS that are members of MAPPED-DEVICES-FOR-BOOT.
(mapped-device-user): Rename to...
(mapped-device-users): ... this. Use 'filter' instead of 'find'.
(operating-system-user-mapped-devices)
(operating-system-boot-mapped-devices): Use 'any
file-system-needed-for-boot?' instead of looking at the first user.
* tests/system.scm ("non-boot-file-system-service"): New test.
* guix/store/deduplication.scm (get-temp-link): Turn 'args' in the 'catch'
handler into a rest argument.
(deduplicate): Use 'lstat' instead of 'file-is-directory?' to properly
handle symlinks. When iterating over the result of 'scandir', exclude
the ".links" sub-directory.
* tests/store-deduplication.scm ("deduplicate"): Create sub-directories
and call 'deduplicate' directly on STORE.
The previous implementation of 'read-reference-graph' was good enough
for many use cases, but it discarded the graph structure, which is
useful information in some cases.
* guix/build/store-copy.scm (<store-info>): New record type.
(read-reference-graph): Rewrite to return a list of <store-info>.
(closure-size, populate-store): Adjust accordingly.
* gnu/services/base.scm (references-file): Adjust accordingly.
* gnu/system/vm.scm (system-docker-image): Likewise.
* guix/scripts/pack.scm (squashfs-image, docker-image): Likewise.
* tests/gexp.scm ("gexp->derivation #:references-graphs"): Likewise.
* guix/store/database.scm (add-reference-sql): Remove nested SELECT.
(add-references): Expect REFERENCES to be a list of ids.
(sqlite-register): Call 'path-id' for each of REFERENCES and pass it to
'add-references'.
* tests/store-database.scm ("register-path with unregistered references"):
New test.
* guix/packages.scm (patch-file-name): New procedure.
(%vulnerability-regexp): New variable.
(package-patched-vulnerabilities): New procedure.
* guix/scripts/lint.scm (patch-file-name): Remove.
(check-vulnerabilities): Adjust to use
'package-patched-vulnerabilities'.
* tests/packages.scm ("package-patched-vulnerabilities"): New test.
This is a followup to 301a424906, which
added a dependency to sed.
* tests/graph.scm ("node-edges"): Use 'hello', not 'sed', as the example
of a package without any dependency.
Reported by Chris Marusich <cmmarusich@gmail.com>.
Fixes <https://bugs.gnu.org/31560>.
* tests/pack.scm ("self-contained-tarball"): Rename 'guile' to 'bin'.
Expect 'bin/Guile' to be a relative symlink.
* guix/records.scm (print-record-abi-mismatch-error): New procedure.
<top level>: Add 'set-exception-printer!' call.
(current-abi-identifier, abi-check): New procedures.
(make-syntactic-constructor): Add #:abi-cookie parameter. Insert calls
to 'abi-check'.
(define-record-type*)[compute-abi-cookie]: New procedure.
Use it and emit a definition of the 'current-abi-identifier' for TYPE.
* tests/records.scm ("ABI checks"): New test.
The test could fail because "static-binaries.tar.xz" is missing, for
instance.
* tests/guix-pack.sh: Require a network connection to be on the safe
side. This reverts part of 47a60325ca.
* gnu/packages/aux-files/run-in-namespace.c: New file.
* Makefile.am (AUX_FILES): Add it.
* guix/scripts/pack.scm (<c-compiler>): New record type.
(c-compiler, bootstrap-c-compiler, c-compiler-compiler): New procedures.
(self-contained-tarball): Use
'relative-file-name' for the SOURCE -> TARGET symlink.
(docker-image): Add 'defmod' to please Geiser.
(wrapped-package, map-manifest-entries): New procedures.
(%options, show-help): Add --relocatable.
(guix-pack): Honor it.
* guix/build/union.scm (symlink-relative): New procedure.
* guix/build/profiles.scm: Re-export it.
(build-profile): Add #:symlink and pass it to 'union-build'.
* guix/profiles.scm (profile-derivation): Add #:relative-symlinks?.
Pass #:symlink to 'build-profile'.
* tests/profiles.scm ("profile-derivation relative symlinks, one entry")
("profile-derivation relative symlinks, two entries"): New tests.
* guix/build/union.scm (%not-slash): New variable.
(relative-file-name): New procedure.
* tests/union.scm (test-relative-file-name): New macro and tests.
* guix/packages.scm (package-full-name): By default, use "@" to separate
the package name and package version. Add an optional delimiter
argument so that there is still a way to explicitly use a different
delimiter.
* gnu/packages/commencement.scm (gcc-boot0) <unpack-gmp&co>: Adjust
accordingly.
* tests/graph.scm: Adjust accordingly.
* tests/profiles.scm: Adjust accordingly.
* NEWS: Mention the change.
Fixes: <https://bugs.gnu.org/31088>.
Reported by Pierre Neidhardt <ambrevar@gmail.com>.
Fixes a regression introduced in
aad16cc196.
Reported by Julien Lepiller.
* guix/scripts/pack.scm (guix-pack)[manifest-from-args]: In
'match-lambda', add clause for single packages.
* tests/guix-pack.sh: Add test for '-e'.
Previously they would silently be ignored.
* guix/scripts/pack.scm (guix-pack)[manifest-from-args]: Add 'store'
parameter. Call 'options->transformation' and use it.
Move 'with-store' and 'parameterize' around the 'let'.
* tests/guix-pack.sh: Add test using '--with-source'.
Previous "test -x opt/gnu/bin/guile" would fail if the store item
"opt/gnu/bin" points to had been GC'd.
* tests/guix-pack.sh: Replace "test -x" with "test -L" to deal with
store items that have been reclaimed.
* guix/ui.scm (print-unbound-variable-error): Add "error:" to the
message.
(report-unbound-variable-error): New procedure, with code formerly in
'report-load-error'.
(report-load-error): Use it.
(call-with-unbound-variable-handling): New procedure.
(with-unbound-variable-handling): New macro.
* guix/scripts/build.scm (options->derivations): Wrap body in
'with-unbound-variable-handling'.
* tests/guix-build.sh (GUIX_PACKAGE_PATH): Add test.
Fixes <https://bugs.gnu.org/29707>.
Reported by Clément Lassieur <clement@lassieur.org>.
* guix/scripts/system/search.scm (service-type-default-shepherd-services)
(service-type-shepherd-names): New procedures.
(service-type->recutils): Use it.
* tests/guix-system.sh: Add test.
* nix/nix-daemon/nix-daemon.cc (isRemoteConnection): New variable.
(performOp): For wopCollectGarbage, throw an error when isRemoteConnection
is set.
(acceptConnection): Set isRemoteConnection when connection is not AF_UNIX.
* tests/guix-daemon.sh: Add a test for the new behavior.
* guix/gexp.scm (<scheme-file>)[splice?]: New field.
(scheme-file): Add #:splice? and pass it to '%scheme-file'.
(scheme-file-compiler): Pass SPLICE? to 'gexp->file'.
(gexp->file): Add #:splice? and honor it.
* tests/gexp.scm ("gexp->file + #:splice?"): New test.
("gexp->derivation & with-imported-module & computed module"): Use
#:splice? #t.
* guix/build/union.scm (warn-about-collision): New procedure.
(union-build): Add #:resolve-collision.
[resolve-collisions]: Call it.
* tests/union.scm ("union-build collision first & last"): New test.
Fixes <https://bugs.gnu.org/25476>.
Reported by Paul Garlick <pgarlick@tourbillion-technology.com>
and Maria Sidorova <hydromasha@gmail.com>.
* tests/syscalls.scm ("pivot-root"): Skip on known-bad Ubuntu kernels.
* tests/packages.scm ("package-source-derivation, snippet", "trivial")
("trivial with local file as input", "trivial with source")
("trivial with system-dependent input", "trivial with #:allowed-references")
("--search-paths with pattern", "--search-paths with single-item search path")
("replacement also grafted"): In the builders, raise an exception on errors
and otherwise return #t. Use invoke.
* tests/guix-system.sh: Add test cases that exercise (1) all of the
example files in gnu/system/examples, and (2) all of the "image"
creation commands: vm, vm-image, disk-image, and docker-image.
* guix/scripts/pack.scm (bootstrap-xz): New variable.
(%options) <--bootstrap>: New option.
(show-help): Document the new --bootstrap option.
(guix-pack): When --bootstrap is specified, use the bootstrap Guile,
tar, and xz to build the pack, and do not use any profile hooks or
locales.
* doc/guix.texi (Invoking guix pull): Document the new --bootstrap
option.
* tests/guix-pack.sh: New file.
* Makefile.am (SH_TESTS): Add guix-pack.sh.
* gnu/packages/package-management.scm (guix) <inputs>: Add util-linux.
Fixes <https://bugs.gnu.org/30868>.
Reported by Martin Castillo <castilma@uni-bremen.de>.
* tests/publish.scm ("/log/NAME"): Use #$(random-text) in the builder.
* guix/glob.scm (wildcard-indices): Remove.
(parse-bracket): New procedure.
(compile-glob-pattern): Rewrite. Support square brackets for sets and
ranges.
(glob-match?): Support sets and ranges.
* tests/glob.scm (test-compile-glob-pattern)
(test-glob-match): New macros.
Use them to rewrite the existing tests, and add new tests.
Fixes <https://bugs.gnu.org/30824>.
Reported by Chris Marusich <cmmarusich@gmail.com>.
* tests/packages.scm ("package-source-derivation, snippet"): Use
'bootstrap-guile-origin' instead of assuming the bootstrap guile tarball
is available locally.
* guix/hash.scm (GCRY_MD_SHA1): New macro.
(bytevector-hash): New procedure.
(sha256): Express in terms of 'bytevector-hash'.
(sha1): New procedure.
* tests/hash.scm ("sha1, empty", "sha1, hello"): New tests.
This change allows overriding the home directory of all filesystem mappings to
help hide the identity of the calling user in a container.
* doc/guix.texi (Invoking guix environment)[--container]: Mention --user.
[--user]: Add item.
* guix/scripts/environment.scm (show-help): Add --user.
(%options): Add --user.
(launch-environment/container) Add 'user' parameter. Update doc. Override
'user-mappings' using 'override-user-mappings'. Consider override for chdir.
(mock-passwd, user-override-home, overrid-euser-dir): New procedures.
(guix-environment): Disallow --user without --container. Provide user to
'launch-environment/container'.
* tests/guix-environment.sh: Add user test.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This change is motivated by attempts to run programs (like GNU IceCat) within
containers. The 'fontconfig' program, for example, is configured explicitly
to check ~/.guix-profile for additional fonts.
There were no existing container tests in 'tests/guix-environment.sh', but I
added one anyway for this change.
* doc/guix.texi (Invoking guix environment): Add '--link-profile'.
* guix/scripts/environment.scm (show-help): Add '--link-profile'.
(%options): Add 'link-profile' as '#\P', assigned to 'link-profile?'.
(link-environment): New procedure.
(launch-environment/container): Use it when 'link-profile?'.
[link-profile?]: New parameter.
(guix-environment): Leave when '--link-prof' but not '--container'. Add
'#:link-profile?' argument to 'launch-environment/container' application.
* tests/guix-environment-container.sh: New '--link-profile' test.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
Fixes <https://bugs.gnu.org/30569>.
Reported by Andreas Enge <andreas@enge.fr>.
* guix/profiles.scm (manifest-add): Don't append ENTRIES as is.
Instead, cons each element of ENTRIES as we fold over it.
Remove unneeded ellispes in 'match' patterns.
* guix/build-system/trivial.scm (lower): Add #:allowed-references and
keep it in the 'arguments' field.
(trivial-build): Add #:allowed-references. Add
'canonicalize-reference'. Pass #:allowed-references to
'build-expression->derivation'.
(trivial-cross-build): Likewise.
* tests/packages.scm ("trivial with #:allowed-references"): New test.
Reported by <pkill9@runbox.com>.
Fixes <https://bugs.gnu.org/30470>.
* guix/import/utils.scm (alist->package): Check whether 'license' is
false and set the 'license' field to #f in this case.
* tests/import-utils.scm ("alist->package with false license"): New
test.
Fixes <https://bugs.gnu.org/30184>.
Regression introduced in 297e04d660.
Reported by Christopher Baines <mail@cbaines.net>.
* guix/scripts/publish.scm (nar-response-port): Add 'compression'
parameter and honor it.
(http-write): Get 'x-nar-compression' from the initial RESPONSE.
This simplifies OS configuration: users no longer need to be aware of
what a given service depends on.
See the discussion at
<https://lists.gnu.org/archive/html/guix-devel/2018-01/msg00114.html>.
* gnu/services.scm (missing-target-error): New procedure.
(service-back-edges): Use it.
(instantiate-missing-services): New procedure.
* gnu/system.scm (operating-system-services): Call
'instantiate-missing-services'.
* tests/services.scm ("instantiate-missing-services")
("instantiate-missing-services, no default value"): New tests.
* gnu/services/version-control.scm (cgit-service-type)[extensions]: Add
FCGIWRAP-SERVICE-TYPE.
* gnu/tests/version-control.scm (%cgit-os): Remove NGINX-SERVICE-TYPE
and FCGIWRAP-SERVICE-TYPE instances.
* doc/guix.texi (Log Rotation): Remove 'mcron-service-type' in example.
(Miscellaneous Services): Remove 'nginx-service-type' and
'fcgiwrap-service-type' in Cgit example.
