| Age | Commit message (Expand) | Author |
|---|
| 2020-11-28 | channels: Expose the default channel in %default-channel....* guix/channels(%default-guix-channel): New variable taken from the inner of
%default-channels.
(%default-channels): Refactored.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
| Zhu Zihao |
| 2020-10-12 | channels: Address test failure....Fixes <https://bugs.gnu.org/43940>.
Reported by Maxim Cournoyer <maxim.cournoyer@gmail.com>.
The "channel-instances->manifest" test would fail since
1d4ab335b22a93e01c2eb1eb3e93fc6534157040: 'quiet-guile' would be passed #f
as GUILE, and thus 'package-version' would fail with wrong-type-arg.
* guix/channels.scm (whole-package-for-legacy): Pass #:guile to
'whole-package'.
* tests/channels.scm ("channel-instances->manifest"): Remove 'test-expect-fail'.
| Ludovic Courtès |
| 2020-07-25 | Use 'formatted-message' instead of '&message' where appropriate....* gnu.scm (%try-use-modules): Use 'formatted-message' instead of
'&message'.
* gnu/machine/digital-ocean.scm (maybe-raise-unsupported-configuration-error):
Likewise.
* gnu/machine/ssh.scm (machine-check-file-system-availability): Likewise.
(machine-check-building-for-appropriate-system): Likewise.
(deploy-managed-host): Likewise.
(maybe-raise-unsupported-configuration-error): Likewise.
* gnu/packages.scm (search-patch): Likewise.
* gnu/services.scm (%service-with-default-value): Likewise.
(files->etc-directory): Likewise.
(fold-services): Likewise.
* gnu/system.scm (locale-name->definition*): Likewise.
* gnu/system/mapped-devices.scm (check-device-initrd-modules): Likewise.
(check-luks-device): Likewise.
* guix/channels.scm (latest-channel-instance): Likewise.
* guix/cve.scm (json->cve-items): Likewise.
* guix/git-authenticate.scm (commit-signing-key): Likewise.
(commit-authorized-keys): Likewise.
(authenticate-commit): Likewise.
(verify-introductory-commit): Likewise.
* guix/remote.scm (remote-pipe-for-gexp): Likewise.
* guix/scripts/graph.scm (assert-package): Likewise.
* guix/scripts/offload.scm (private-key-from-file*): Likewise.
* guix/ssh.scm (authenticate-server*): Likewise.
(open-ssh-session): Likewise.
(remote-inferior): Likewise.
* guix/ui.scm (matching-generations): Likewise.
* guix/upstream.scm (package-update): Likewise.
* tests/channels.scm ("latest-channel-instances, missing introduction for 'guix'"):
Catch 'formatted-message?'.
("authenticate-channel, wrong first commit signer"): Likewise.
* tests/lint.scm ("patches: not found"): Adjust message string.
* tests/packages.scm ("patch not found yields a run-time error"): Catch
'formatted-message?'.
* guix/lint.scm (check-patch-file-names): Handle 'formatted-message?'.
(check-derivation): Ditto.
| Ludovic Courtès |
| 2020-07-25 | utils: Move '&fix-hint' to (guix diagnostics)....* guix/utils.scm (&fix-hint): Move to...
* guix/diagnostics.scm (&fix-hint): ... here.
* gnu.scm: Adjust imports accordingly.
* gnu/system/mapped-devices.scm: Likewise.
* guix/channels.scm: Likewise.
* guix/profiles.scm: Likewise.
* guix/scripts/system/reconfigure.scm: Likewise.
* guix/ssh.scm: Likewise.
| Ludovic Courtès |
| 2020-07-11 | git-authenticate: Factorize 'authenticate-repository'....* guix/git-authenticate.scm (repository-cache-key)
(verify-introductory-commit, authenticate-repository): New procedures.
* guix/channels.scm (verify-introductory-commit): Remove.
(authenticate-channel): Rewrite in terms of 'authenticate-repository'.
| Ludovic Courtès |
| 2020-07-01 | channels: Dependencies listed in '.guix-channel' can have an introduction....Suggested by Ricardo Wurmus and Simon Tournier.
* guix/channels.scm (sexp->channel-introduction): New procedure.
(read-channel-metadata): Use it.
(profile-channels)[sexp->channel-introduction]: Remove.
* tests/channels.scm ("latest-channel-instances, authenticate dependency"):
New test.
* doc/guix.texi (Channels)[Declaring Channel Dependencies]: Augment example.
| Ludovic Courtès |
| 2020-07-01 | channels: Save and interpret 'introduction' field in provenance data....With this change, profiles created by 'guix pull' & co. include channel
introductions as part of the channel metadata of each manifest entry.
* guix/channels.scm (channel-instances->manifest)[instance->entry]: Add
'introduction' field when CHANNEL has an introduction.
(profile-channels)[sexp->channel-introduction]: New procedure.
Use it to initialize the 'introduction' field.
| Ludovic Courtès |
| 2020-07-01 | channels: Remove 'signature' from <channel-introduction>....In the end signing the commit/key pair does not buy us much. Someone
publishing a valid but different commit/key pair would effectively be
publishing a different channel, which could be a fork (made by a former
authorized developer) or simply a mirror. In the latter case, there's
nothing to be gained by publishing a different commit/key pair.
* guix/channels.scm (<channel-introduction>)[signature]: Remove.
(make-channel-introduction): Adjust accordingly.
| Ludovic Courtès |
| 2020-07-01 | channels: Make channel introductions public....* guix/channels.scm (<channel-introduction>): Rename constructor to
'%make-channel-introduction'.
(make-channel-introduction): New procedure.
* tests/channels.scm ("authenticate-channel, wrong first commit signer")
("authenticate-channel, .guix-authorizations"): Use
'make-channel-introduction' without '@@' and without third argument.
* doc/guix.texi (Channels)[Channel Authentication, Specifying Channel
Authorizations]: New subsections.
| Ludovic Courtès |
| 2020-07-01 | channels: Add 'openpgp-fingerprint->bytevector'....* guix/channels.scm (openpgp-fingerprint->bytevector): New procedure.
(openpgp-fingerprint): New macro.
(%guix-channel-introduction): Use it.
| Ludovic Courtès |
| 2020-06-28 | channels: Error out when the 'guix' channel lacks an introduction....* guix/channels.scm (latest-channel-instance): Raise an error instead of
warning when 'guix is unauthenticated.
* tests/channels.scm ("latest-channel-instances, missing introduction for 'guix'"):
New test.
| Ludovic Courtès |
| 2020-06-21 | channels: 'authenticate-channel' doesn't check relation with intro commit....Fixes <https://bugs.gnu.org/41908>.
Reported by Jan Nieuwenhuizen <janneke@gnu.org>.
The relation check imposed an extra restriction that was unnecessary:
it's enough to authenticate the set difference between the closure of
START-COMMIT and that of END-COMMIT. Any attempt to jump to an
unrelated commit would lead to the authentication failure of one commit
on the way.
* guix/channels.scm (authenticate-channel): Remove extra
'commit-relation' check when (null? commits).
| Ludovic Courtès |
| 2020-06-17 | channels: Warn when pulling from a mirror....* guix/channels.scm (<channel-metadata>)[url]: New field.
(read-channel-metadata): Initialize it.
(read-channel-metadata-from-source): Likewise.
(channel-instance-primary-url): New procedure.
(latest-channel-instances): Compare CHANNEL's URL against it.
* doc/guix.texi (Channels)[Primary URL]: New subsection.
| Ludovic Courtès |
| 2020-06-16 | pull: Add '--disable-authentication'....* guix/channels.scm (latest-channel-instance): Add #:authenticate? and
honor it.
(latest-channel-instances): Likewise.
* guix/scripts/pull.scm (%default-options): Add 'authenticate-channels?'.
(show-help, %options): Add '--disable-authentication'.
(guix-pull): Pass #:authenticate? to 'latest-channel-instances'.
* doc/guix.texi (Invoking guix pull): Document it.
| Ludovic Courtès |
| 2020-06-16 | channels: Automatically add introduction for the official 'guix' channel....This is useful when people run "guix time-machine -C channels.scm",
where 'channels.scm' misses channel introductions.
* guix/channels.scm (%default-channel-url): New variable.
(%default-channels): Use it.
(ensure-default-introduction): New procedure.
(latest-channel-instance): Call it.
| Ludovic Courtès |
| 2020-06-16 | channels: Make 'validate-pull' call right after clone/pull....This should come before patching, authentication, etc.
* guix/channels.scm (latest-channel-instance): Add #:validate-pull
parameter and honor it. Return a single value: the instance.
(ensure-forward-channel-update): Change 'instance' parameter to 'commit'
and adjust accordingly.
(latest-channel-instances): Adjust to 'latest-channel-instance' changes.
* guix/scripts/pull.scm (warn-about-backward-updates): Change 'instance'
parameter to 'commit' and adjust accordingly.
* tests/channels.scm ("latest-channel-instances #:validate-pull"):
Likewise.
| Ludovic Courtès |
| 2020-06-16 | channels: 'latest-channel-instance' authenticates Git checkouts....Fixes <https://bugs.gnu.org/22883>.
* guix/channels.scm (<channel>)[introduction]: New field.
(<channel-introduction>): New record type.
(%guix-channel-introduction): New variable.
(%default-channels): Use it.
(<channel-metadata>)[keyring-reference]: New field.
(%default-keyring-reference): New variable.
(read-channel-metadata, read-channel-metadata-from-source): Initialize
the 'keyring-reference' field.
(commit-short-id, verify-introductory-commit)
(authenticate-channel): New procedures.
(latest-channel-instance): Call 'authenticate-channel' when CHANNEL has
an introduction.
* tests/channels.scm (gpg+git-available?, commit-id-string): New
procedures.
("authenticate-channel, wrong first commit signer"):
("authenticate-channel, .guix-authorizations"): New tests.
* doc/guix.texi (Invoking guix pull): Mention authentication.
| Ludovic Courtès |
| 2020-05-25 | pull: Protect against downgrade attacks....* guix/scripts/pull.scm (%default-options): Add 'validate-pull'.
(%options, show-help): Add '--allow-downgrades'.
(warn-about-backward-updates): New procedure.
(guix-pull): Pass #:current-channels and #:validate-pull to
'latest-channel-instances'.
* guix/channels.scm (ensure-forward-channel-update): Add hint for
when (channel-commit channel) is true.
* doc/guix.texi (Invoking guix pull): Document '--allow-downgrades'.
| Ludovic Courtès |
| 2020-05-25 | channels: 'latest-channel-instances' guards against non-forward updates....* guix/channels.scm (latest-channel-instance): Add #:starting-commit and
pass it to 'update-cached-checkout'. Return the commit relation as a
second value.
(ensure-forward-channel-update): New procedure.
(latest-channel-instances): Add #:current-channels and #:validate-pull.
[current-commit]: New procedure.
Pass #:starting-commit to 'latest-channel-instance'. When the returned
relation is true, call VALIDATE-PULL.
(latest-channel-derivation): Add #:current-channels and #:validate-pull.
Pass them to 'latest-channel-instances*'.
* tests/channels.scm ("latest-channel-instances #:validate-pull"): New
test.
| Ludovic Courtès |
| 2020-05-25 | git: 'update-cached-checkout' returns the commit relation....* guix/git.scm (update-cached-checkout): Add #:starting-commit
parameter. Call 'commit-relation' when #:starting-commit is true.
Always return the relation or #f as the third value.
(latest-repository-commit): Adjust accordingly.
* guix/import/opam.scm (get-opam-repository): Likewise.
* tests/channels.scm ("latest-channel-instances includes channel dependencies")
("latest-channel-instances excludes duplicate channel dependencies"):
Update mock of 'update-cached-checkout' accordingly.
| Ludovic Courtès |
| 2020-05-25 | channels: 'latest-channel-instances' doesn't leak internal state....* guix/channels.scm (latest-channel-instances): Remove
'previous-channels' argument. Introduce 'loop' and use it.
| Ludovic Courtès |
| 2020-05-15 | channels: 'build-from-source' restores '%guile-for-build'....Not restoring it would cause problems when running:
guix time-machine --commit=6298c3ffd9654d3231a6f25390b056483e8f407c
or similar because the target Guix would be built with 2.2, and then
we'd erroneously go on and attempt build the profile with 2.2. This
would fail because profile dependencies such as "guile-gdbm-ffi" now
target 3.0.
* guix/channels.scm (call-with-guile): New procedure.
(with-guile): New macro.
(build-from-source): Use it instead of calling 'set-guile-for-build'
just once. This ensures that '%guile-for-build' is restored
afterwards.
| Ludovic Courtès |
| 2020-05-15 | channels: Move quirks and patches to (guix quirks)....* guix/channels.scm (apply-patches): Don't access <patch> record
directly; use 'applicable-patch?' and 'apply-patch' instead.
(<patch>, syscalls-reexports-local-variables?)
(guile-2.2.4, %quirks, %bug-41028-patch, %patches): Move to...
* guix/quirks.scm: ... here. New file.
(apply-patch, applicable-patch?): New procedures.
| Ludovic Courtès |
| 2020-05-07 | channels: Add patch for <https://bugs.gnu.org/41028>....Without this patch, we couldn't jump from here to commits before
05e783871c2c69b402e088863d46f5be7915ac74 because the
'compute-guix-derivation' script would crash with an unbound-variable
error for 'call-with-new-thread'.
Fixes <https://bugs.gnu.org/41028>.
Reported by Christopher Baines <mail@cbaines.net>.
* guix/channels.scm (%bug-41028-patch): New variable.
(%patches): Add it.
| Ludovic Courtès |
| 2020-05-07 | channels: Add mechanism to patch checkouts of the 'guix channel....* guix/channels.scm (<patch>): New record type.
(apply-patches): New procedure.
(latest-channel-instance)[dot-git?]: New procedure.
Use 'update-cached-checkout' and 'add-to-store' instead of
'latest-repository-commit'. Call 'apply-patches' when CHANNEL is the
'guix channel.
(%patches): New variable.
* guix/git.scm (url+commit->name): Make public.
* tests/channels.scm ("latest-channel-instances includes channel dependencies")
("latest-channel-instances excludes duplicate channel dependencies"):
Mock 'update-cached-checkout' instead of 'latest-repository-commit'.
Wrap body in 'with-store' and pass the store to 'latest-channel-instances'.
| Ludovic Courtès |
| 2020-05-07 | channels: Add 'latest-channel-instance'....* guix/channels.scm (latest-channel-instance): New procedure.
(latest-channel-instances): Use it.
| Ludovic Courtès |
| 2020-04-26 | channels: Use a declarative profile....* guix/channels.scm (package-cache-file): Use 'profile' instead of
'profile-derivation'.
| Ludovic Courtès |
| 2020-04-06 | channels: Call 'build-self.scm' procedure with a trivial build handler....Previously, "TESTS=installed-os guix build -m etc/system-tests.scm"
would repeat the "Computing Guix derivation" phase ~5 times due to the
fact that there were several call paths, within a build-accumulator,
leading to (package-derivation store guix).
* guix/channels.scm (with-trivial-build-handler): New procedure.
(build-from-source): Wrap 'build' call in 'with-trivial-build-handler'.
| Ludovic Courtès |
| 2020-01-09 | channels: Provide a hint when the 'guix' channel is lacking....Fixes <https://bugs.gnu.org/39043>.
Reported by Jesse Gibbons <jgibbons2357@gmail.com>.
* guix/channels.scm (channel-instance-derivations): Raise '&fix-hint'
condition in addition to the '&message' condition.
| Ludovic Courtès |
| 2019-10-27 | channels: Refer to 'guile-json-3'....Fixes a regression introduced in 84af1e74029fd4c43636f7d8d3e6f82ddab9ce82.
* guix/channels.scm (whole-package-for-legacy): Refer to GUILE-JSON-3,
not GUILE-JSON.
| Ludovic Courtès |
| 2019-10-02 | channels: Add quirk to build recent 'master' with Guile 2.2.4....Fixes <https://bugs.gnu.org/37506>.
Reported by Marius Bakke <mbakke@fastmail.com>.
* guix/channels.scm (syscalls-reexports-local-variables?)
(guile-2.2.4, guile-for-source): New procedures.
(%quirks): New variable.
(build-from-source): Add calls to 'guile-for-source' and
'set-guile-for-build'.
| Ludovic Courtès |
| 2019-09-23 | channels: Allow news entries to refer to a tag....Suggested by Ricardo Wurmus <rekado@elephly.net>.
* guix/channels.scm (<channel-news-entry>)[tag]: New field.
(sexp->channel-news-entry): Accept either 'commit' or 'tag' in 'entry'
forms.
(resolve-channel-news-entry-tag): New procedure.
(channel-news-for-commit): Move 'with-repository' form one level
higher. Call 'resolve-channel-news-entry-tag' on all the news entries.
* guix/tests/git.scm (populate-git-repository): Add clause for 'tag'.
* tests/channels.scm ("channel-news, one entry"): Create a tag and add
an entry with a tag. Check that the tag is resolved and also visible in
the <channel-news-entry> record.
* doc/guix.texi (Channels): Mention tags in news entries.
| Ludovic Courtès |
| 2019-09-23 | channels: Add support for a news file....* guix/channels.scm (<channel-metadata>)[news-file]: New field.
(read-channel-metadata): Set the 'news-file' field.
(read-channel-metadata-from-source): Likewise.
(<channel-news>, <channel-news-entry>): New record types.
(sexp->channel-news-entry, read-channel-news)
(channel-news-for-commit): New procedures.
* guix/tests/git.scm (populate-git-repository): For 'add', allow
CONTENTS to be a procedure.
* tests/channels.scm ("channel-news, no news")
("channel-news, one entry"): New tests.
* doc/guix.texi (Channels): Document it.
| Ludovic Courtès |
| 2019-08-16 | channels: Add 'profile-channels'....* guix/channels.scm (profile-channels): New procedure.
* guix/scripts/describe.scm (display-profile-info)[channels]: Define in
terms of 'profile-channels'.
| Ludovic Courtès |
| 2019-07-19 | channels: Always provide a <channel-metadata> record....This simplifies the code since one no longer needs to think about
whether '.guix-channel' was present.
* guix/channels.scm (read-channel-metadata): Always pass a string as the
first argument to 'channel-metadata'.
(read-channel-metadata-from-source): Always return a <channel-metadata>
record.
(channel-instance-dependencies): Remove now unneeded 'match'.
(standard-module-derivation): Assume DIRECTORY is never #f and contains
a leading slash.
* tests/channels.scm (channel-metadata-directory)
(channel-metadata-dependencies): New procedures.
("channel-instance-metadata returns #f if .guix-channel does not
exist"): Remove.
("channel-instance-metadata returns default if .guix-channel does not
exist"): New test.
(make-instance): Use 'write' instead of 'display' when creating
'.guix-channel'.
(instance--no-deps): Remove dependencies.
(instance--sub-directory): New variable.
("channel-instance-metadata and default dependencies")
("channel-instance-metadata and directory"): New tests.
("latest-channel-instances excludes duplicate channel dependencies"):
Expect 'channel-commit' to return a string and adjust accordingly.
| Ludovic Courtès |
| 2019-07-19 | channels: Remove unneeded 'version' field of <channel-metadata>....The idea is that 'read-channel-metadata' will take care of converting
possibly older versions to the current data type. Thus, storing the
version number is unnecessary.
* guix/channels.scm (<channel-metadata>)[version]: Remove.
(read-channel-metadata, channel-instance-dependencies): Adjust
accordingly.
| Ludovic Courtès |
| 2019-07-19 | channels: Strictly check the version of '.guix-channel'....Until now the 'version' field in '.guix-channel' could be omitted, or it
could be any value.
* guix/channels.scm (read-channel-metadata): Rename to...
(channel-instance-metadata): ... this.
(channel-instance-dependencies): Adjust accordingly.
(read-channel-metadata): New procedure. Use 'match'
to require a 'version' field. Provide proper error handling when the
channel sexp is malformed or when given an unsupported version number.
(read-channel-metadata-from-source): Use 'catch' and
'system-error-errno' instead of 'file-exists?'.
* tests/channels.scm (instance--unsupported-version): New variable.
(read-channel-metadata): Rename to...
(channel-instance-metadata): ... this. Rename tests accordingly.
("channel-instance-metadata rejects unsupported version"): New test.
| Ludovic Courtès |
| 2019-07-15 | channels: Avoid use of 'derivation-input-path'....* guix/channels.scm (old-style-guix?): Use 'derivation-name' rather than
'derivation-input-path'.
| Ludovic Courtès |
| 2019-07-14 | channels: Add optional directory to channel metadata....* guix/channels.scm (<channel-metadata>): Add directory slot. Update users.
(read-channel-metadata-from-source): New function.
(standard-module-derivation): Use it.
* doc/guix.texi (Package Modules in a Subdirectory): New subsection.
| Jan Nieuwenhuizen |
| 2019-07-08 | channels: Key cached channel derivations by system....Previously, the channel instance to derivation mapping would be
independent of the system. Thus, building the same channel instance for
several different systems would always return the derivation that was
first computed.
This is a followup to c3ab921eed2a471022e9863a94ea521508782e53.
* guix/channels.scm (channel-instance-derivations)[instance->derivation]:
Pass the current system as a third argument to 'mcached'.
| Ludovic Courtès |
| 2019-07-06 | channels: Simplify 'channel-instances->manifest'....* guix/channels.scm (channel-instances->manifest)[instance->entry]:
Change to take two arguments instead of a tuple. Turn into a
non-monadic procedure.
Call it via 'map' instead of 'mapm'.
| Ludovic Courtès |
| 2019-06-03 | deprecation: Use the 'warning' procedure for diagnostics....Until now, (guix deprecation) had its own warning mechanism, which was
inconsistent (it did not use colors, etc.)
* guix/deprecation.scm (deprecation-warning-port): Remove
(source-properties->location-string): Remove.
(warn-about-deprecation): Use 'warning' instead of 'format'.
(define-deprecated, define-deprecated/alias): Adjust docstring.
* guix/channels.scm (build-from-source): Refer to 'guix-warning-port'
instead of 'deprecation-warning-port'.
| Ludovic Courtès |
| 2019-04-17 | pull: '--url', '--commit', and '--branch' apply to the 'guix' channel....Suggested by pkill9 <pkill9@runbox.com>.
* guix/scripts/pull.scm (channel-list): Apply REF and URL to the 'guix'
channel.
* doc/guix.texi (Invoking guix pull): Adjust accordingly.
| Ludovic Courtès |
| 2019-03-08 | channels: Do not fail when the inferior lacks 'guix repl'....Fixes <https://bugs.gnu.org/34637>.
Reported by Martin Flack <martin.flack@gmail.com>.
Previously we'd fail to build the package cache for old versions of Guix
that lack 'guix repl'. Now we simply ignore the issue and keep going
without a cache.
* guix/inferior.scm (gexp->derivation-in-inferior): Add
#:silent-failure? and honor it.
[drop-extra-keyword]: New procedure.
Use it.
* guix/channels.scm (package-cache-file): Pass #:silent-failure? #t.
| Ludovic Courtès |
| 2019-01-29 | channels: Do not offload package cache derivation....* guix/channels.scm (package-cache-file): Pass #:local-build? to
'gexp->derivation-in-inferior'.
| Ludovic Courtès |
| 2019-01-28 | channels: Turn off deprecation warnings when loading 'build-self.scm'....* guix/channels.scm (build-from-source): Parameterize
DEPRECATION-WARNING-PORT when loading SCRIPT.
| Ludovic Courtès |
| 2019-01-20 | channels: Use 'fold2'....* guix/channels.scm (latest-channel-instances): Use 'fold2' instead of
'fold'.
| Ludovic Courtès |
| 2019-01-20 | channels: Gracefully report the lack of a 'guix' channel....* guix/channels.scm (channel-instance-derivations): Raise an '&message'
condition when CORE-INSTANCE is #f.
| Ludovic Courtès |
| 2019-01-20 | channels: Build channel modules in an inferior....This ensures that channel modules are compiled with the right Guile,
that they get to see the right modules, and so on. IOW, it avoids bugs
such as those addressed by commits
3c0e16391ed9a3e3e4611b940fb393c5f2ecea63 and
cb341c121919877ae6267a6460c0c17536d06eff.
* guix/channels.scm (standard-module-derivation): Add 'core'
parameter. Rewrite in terms of 'gexp->derivation-in-inferior'.
(build-from-source): Add #:core parameter and pass it to
'standard-module-derivation'.
(build-channel-instance): Add 'core' parameter and pass it on.
(channel-instance-derivations)[dependencies]: Remove.
Adjust 'build-channel-instance' call.
| Ludovic Courtès |
| 2019-01-20 | channels: Don't pull from the same channel more than once....Previous 'channel-instance->manifest' would call
'latest-channel-derivation', which could trigger another round of
'latest-repository-commit' for no good reason.
* guix/channels.scm (resolve-dependencies): New procedure.
(channel-instance-derivations)[edges]: New variable.
[instance->derivation]: New procedure.
* tests/channels.scm (make-instance): Use 'checkout->channel-instance'
instead of 'channel-instance'.
("channel-instances->manifest"): New test.
| Ludovic Courtès |
