This works around <https://bugs.gnu.org/15602> in the context of
modules specified with 'with-imported-modules'.
* guix/gexp.scm (gexp->derivation): Add #:pre-load-modules? parameter
and pass it to 'compiled-modules'.
(compiled-modules): Add #:pre-load-modules? parameter and honor it.
* guix/packages.scm (patch-and-repack): Pass #:pre-load-modules? to
'gexp->derivation'.
* guix/scripts/environment.scm (launch-environment/container): Add UID
and GID. Use them in PASSWD and GROUPS. Pass them as #:guest-uid and
#:guest-gid to 'call-with-container'.
* tests/guix-environment-container.sh: Test the inner UID.
In '--user' test, replace hard-coded 0 with 1000.
* doc/guix.texi (Invoking guix environment): Adjust accordingly.
This field has become unnecessary with the addition of 'this-package'.
* guix/packages.scm (<package>)[self-native-input?]: Remove.
(package->bag): Adjust accordingly.
* doc/guix.texi (package Reference): Remove 'self-native-input?'.
This lets record users choose an identifier other than 'this-record'.
* guix/records.scm (make-syntactic-constructor): Add #:this-identifier.
[wrap-field-value]: Honor it.
(define-record-type*): Add form with extra THIS-IDENTIFIER and honor
it.
* tests/records.scm ("define-record-type* & thunked & inherit & custom this"):
New test.
Previously, if you'd run 'guix pull' after a couple of weeks, it would
fill your screen with package names, which is unhelpful.
* guix/scripts/pull.scm (ellipsis): New procedure.
(display-new/upgraded-packages): Add #:concise?.
[list->enumeration]: New procedure.
Use it instead of 'string-join'.
(display-profile-news): Pass #:concise? #t.
Reported by Tobias Geerinckx-Rice <me@tobias.gr>
in <https://bugs.gnu.org/35010>.
* guix/upstream.scm (update-package-source): Take 'source' instead of
'version' as the second argument.
[update-expression]: Change to take 'replacements', a list of
replacement pairs.
Compute OLD-URL and NEW-URL and replace the dirname of the OLD-URL with
that of NEW-URL.
* guix/scripts/refresh.scm (update-package): Adjust call to
'update-package-source' accordingly.
Fixes a regression introduced in
abd4d6b33d, where CHANGES would no longer
be a thunk.
Reported by Ricardo Wurmus.
* guix/upstream.scm (package-update/url-fetch): Return SOURCE as the
third value instead of CHANGES.
* guix/scripts/refresh.scm (update-package): Adjust accordingly.
Reported by Pierre Neidhardt <mail@ambrevar.xyz>.
* guix/scripts/environment.scm (launch-environment/container): Create
GROUPS and call 'write-group'.
* tests/guix-environment-container.sh: Test it.
* guix/scripts/environment.scm (launch-environment/container): Remove
call to 'mock-passwd'; instantiate a <password-entry> instead. Call
'write-passwd' to write the pasword database instead of using custom
code.
(mock-passwd): Remove.
* tests/guix-environment-container.sh: Test 'getpwuid'.
Fixes <https://bugs.gnu.org/34995>.
This is a followup to abd4d6b33d.
* guix/packages.scm (package->bag): Adjust calls to INPUTS,
PROPAGATED-INPUTS, NATIVE-INPUTS, and ARGS, passing them SELF as an
argument.
* gnu/packages/gnucash.scm (gnucash)[arguments]: Use (package-inputs
this-record) intead of (inputs).
* gnu/packages/version-control.scm (git)[arguments]: Likewise.
* guix/records.scm (this-record): New syntax parameter.
(make-syntactic-constructor)[wrap-field-value]: When F is thunked,
return a one-argument lambda instead of a thunk, and parameterize
THIS-RECORD.
(define-record-type*)[thunked-field-accessor-definition]: Pass X
to (real-get X).
* tests/records.scm ("define-record-type* & thunked & this-record")
("define-record-type* & thunked & default & this-record")
("define-record-type* & thunked & inherit & this-record"): New tests.
This makes search queries such as:
LANGUAGE=fr guix package -s utilitaire -s recherche
about 6 times faster.
* guix/ui.scm (%package-metrics): Do not use 'package-synopsis-string'
and 'package-description-string' to bypass Texinfo parsing and
rendering.
* guix/scripts/graph.scm (all-packages): New procedure.
(%reverse-package-node-type, %reverse-bag-node-type): Use 'all-packages'
instead of 'fold-packages'.
Suggested by Julien Lepiller.
* guix/scripts/graph.scm (%reverse-bag-node-type): New variable.
(%node-types): Add it.
* tests/graph.scm ("reverse bag DAG"): New test.
* doc/guix.texi (Invoking guix graph): Document it.
Fixes <https://bugs.gnu.org/34913>.
* guix/scripts/pack.scm (squashfs-image)[build]: Use
'relative-file-name' when creating SYMLINKS.
* guix/scripts/pack.scm (guix-pack): Pass #:relative-symlinks? #t when
PACK-FORMAT is 'squashfs.
Fixes <https://bugs.gnu.org/34884>.
Reported by Pierre Neidhardt <mail@ambrevar.xyz>.
* guix/scripts/describe.scm (display-package-search-path): Add catch-all
case for FMT.
This fixes things like:
guix build glibc \
--with-git-url=glibc=git://sourceware.org/git/glibc.git \
--with-branch=glibc=release/2.25/master
whereby slashes would before go straight to the 'version' field, leading
to an invalid store file name.
* guix/scripts/build.scm (transform-package-source-branch)[replace]:
Replace slashes with hyphens in BRANCH when building the version
string.
This was an omission from commit
024a6bfba9.
* guix/scripts/build.scm (transform-package-source-commit): Add
'recursive?' field to SOURCE.
* tests/scripts-build.scm ("options->transformation, with-branch")
("options->transformation, with-commit"): New tests.
This allows us to combine several transformations on a given package, in
particular '--with-git-url' and '--with-branch'.
Previously transformations would ignore each other since they would all
take (specification->package SOURCE) as their replacement source,
compare it by identity, which doesn't work if a previous transformation
has already changed SOURCE.
* guix/scripts/build.scm (evaluate-replacement-specs): Adjust to produce
an alist as expected by 'package-input-rewriting/spec', with a package
spec as the first element of each pair.
(evaluate-git-replacement-specs): Likewise.
(transform-package-inputs): Adjust accordingly and use
'package-input-rewriting/spec'.
(transform-package-inputs/graft): Likewise.
(transform-package-source-branch, transform-package-source-commit): Use
'package-input-rewriting/spec'.
(transform-package-source-git-url): Likewise, and adjust the
REPLACEMENTS alist accordingly.
(options->transformation): Iterate over OPTS instead of over
%TRANSFORMATIONS. Invoke transformations one by one.
* tests/scripts-build.scm ("options->transformation, with-input"):
Adjust test to compare packages by name rather than by identity.
("options->transformation, with-git-url + with-branch"): New test.
* guix/scripts/build.scm (%not-equal): New variable.
(evaluate-git-replacement-specs): Use it instead of local variable
'not-equal'.
(transform-package-source-git-url): New procedure.
(%transformations): Add 'with-git-url'.
(%transformation-options, show-transformation-options-help): Add
'--with-git-url'.
* tests/scripts-build.scm ("options->transformation, with-git-url"):
New test.
This fixes a discrepancy that could be seen when running:
sudo guix system …
where 'guix' would warn about the age of root's Guix, even though the
running Guix is the user's, not root's.
* guix/scripts.scm (warn-about-old-distro)[false-if-not-found]: Remove.
Obtain the profile date by calling 'current-profile-date' instead of
stat'ing "current-guix".
Fixes <https://bugs.gnu.org/34890>.
Reported by Jack Hill <jackhill@jackhill.us>.
Regression introduced in 21fcfe1ee9.
* guix/scripts/system.scm (bootloader-installer-script): Ungexp DEVICE.
This hides potentially confusing GRUB messages from the user, such as
"Installing for i386-pc platform."
* gnu/bootloader/extlinux.scm (install-extlinux): Use 'invoke/quiet'
instead of 'system*' and 'error'.
* gnu/bootloader/grub.scm (install-grub, install-grub-efi): Likewise.
* guix/scripts/system.scm (bootloader-installer-script): Guard against
'message-condition?' and handle them properly.
* gnu/packages/aux-files/run-in-namespace.c (exec_with_proot): New
function.
(main): When 'clone' fails, call 'rm_rf'.
[PROOT_PROGRAM]: When 'clone' fails, call 'exec_with_proot'.
* guix/scripts/pack.scm (wrapped-package): Add #:proot?.
[proot]: New procedure.
[build]: Compile with -DPROOT_PROGRAM when PROOT? is true.
* guix/scripts/pack.scm (%options): Set the 'relocatable?' value to
'proot when "-R" is passed several times.
(guix-pack): Pass #:proot? to 'wrapped-package'.
* tests/guix-pack-relocatable.sh: Use "-RR" on Intel systems that lack
user namespace support.
* doc/guix.texi (Invoking guix pack): Document -RR.
This basically changes (guix build-system go) so that instead of looking
up its dependencies in a list of directories in $GOPATH, all the
Go dependencies are symlinked into a single directory.
Fixes <https://bugs.gnu.org/33620>.
* guix/build/go-build-system.scm (setup-go-environment): New variable.
(setup-environment, install-source): Remove variables.
(unpack): Unpack the source relative to $GOPATH.
(install): Do not install the compiled objects in the 'pkg' directory.
Install the source code in this phase, and only install the source of
the package named by IMPORT-PATH.
* doc/guix.texi (Build Systems): Adjust accordingly.
* gnu/packages/docker.scm (docker): Import (guix build union) on the build side
and adjust to build phase name changes in (guix build-system go).
* gnu/packages/shellutils.scm (direnv): Likewise.
* gnu/packages/databases.scm (mongo-tools)[arguments]:
Set '#:install-source #f'.
* gnu/packages/music.scm (demlo)[arguments]: Move the 'install-scripts'
phase after the 'install' phase.
Fixes <https://bugs.gnu.org/34833>
Reported by mikadoZero <mikadozero@yandex.com>.
By returning the "guix" entry, we were then adding it to
%PACKAGE-MODULE-PATH, causing the discovery code to scan the whole tree,
including gnu/installer modules, which would in turn lead to warnings.
Regression introduced in bfc9c33930.
* guix/describe.scm (package-path-entries): Use
'current-channel-entries', not 'current-profile-entries'.
Until now %LOAD-COMPILED-PATH would wrongfully contain:
CHANNEL/share/guile/site/X.Y
for each channel, thereby ignoring all the .go files of channels. This
fixes it so that %LOAD-COMPILED-PATH instead contains:
CHANNEL/lib/guile/X.Y/site-ccache
* guix/describe.scm (current-channel-entries): New procedure.
(package-path-entries): Change to return the %LOAD-COMPILED-PATH entries
as a second value.
* gnu/packages.scm (%package-module-path): Expect two values from
'package-path-entries' and augment %LOAD-COMPILED-PATH accordingly.
Fixes <https://bugs.gnu.org/34778>.
Reported by Gábor Boskovits <boskovits@gmail.com>.
* guix/upstream.scm (package-update/url-fetch): New procedure, with code
formerly in 'package-update'.
(%method-updates): New variable.
(package-update): Check the method to download PACKAGE's source, and
look up a corresponding update method in %METHOD-UPDATES, and raise an
error if none was found.
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.
* guix/store/database.scm (SQLITE_BUSY, register-output-sql): New variables.
(add-references): Don't try finalizing after each use, only after all the
uses (otherwise a finalized statement would be used if #:cache? was #f).
(call-with-transaction): New procedure.
(register-items): Use call-with-transaction to prevent broken intermediate
states from being visible.
* .dir-locals.el (call-with-transaction): indent it.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
* guix/scripts/environment.scm (%options): Remove "--exec", which was
deprecated in commit 1de2fe95e0 in 2015.
* tests/guix-environment.sh: Remove use of '-E'.
This minimizes the risk of locale-related warnings, at least for those
who use one of the bundled UTF-8 locales.
* guix/self.scm (guix-command)[glibc-utf8-locales]: New variable.
In program body, set GUIX_LOCPATH.
* guix/scripts/environment.scm (purify-environment): Add 'white-list'
parameter and honor it.
(create-environment): Add #:white-list parameter and honor it.
(launch-environment): Likewise.
(launch-environment/fork): Likewise.
(show-help, %options): Add '--inherit'.
(guix-environment): Define 'white-list' and pass it to
'launch-environment/fork'.
* tests/guix-environment.sh: Test '--inherit'.
* doc/guix.texi (Invoking guix environment): Document it.
This functionality was broken, possibly to do with the vendor related changes
in the ruby build system. These changes restore the file removal functionality
at the end of the install phase.
* guix/build/ruby-build-system.scm (install): Fix removal of files related to
native extensions.
This is helpful as it displays more information about what gem install is
doing, especially for packages with native extensions.
* guix/build/ruby-build-system.scm (install): Add --verbose to gem install command.
* guix/build/ruby-build-system.scm (extract-gemspec): Return #t right at the
end, rather than returning #<unspecified> when not handling a gem archive.
Previously 'guix system switch-generation' or 'delete-generations' would
yield a GRUB menu where entries for old generations were in the wrong
order (i.e., oldest first.)
* guix/scripts/system.scm (reinstall-bootloader): Reverse the list
returned by 'generation-numbers'.
* guix/scripts/pull.scm (new/upgraded-packages): OLD no longer stores
all the versions of each package. Remove 'vhash-fold*' call and reduce
the number of 'version>?' calls when computing UPGRADED.
* guix/scripts/pull.scm (new/upgraded-packages): New procedure, with
code formerly in 'display-new/upgraded-packages'.
(display-new/upgraded-packages): Use it.
* guix/scripts/pull.scm (display-profile-news): Use
'fold-available-packages' instead of 'fold-packages' to compute OLD.
(profile-package-alist): Use 'inferior-available-packages'.
In practice the error was not triggered because
'package-transitive-propagated-inputs' currently returns the empty list
for these two packages.
* guix/scripts/pack.scm (gcrypt-sqlite3&co): Remove labels from the
result.
* gnu/system/vm.scm (gcrypt-sqlite3&co): Likewise.
Fixes <https://bugs.gnu.org/34402>.
Reported by <pkill9@runbox.com>.
Previously 'display-error' could be called with the wrong number of
arguments (e.g., for 'git-error' exceptions), and thus nothing at all
was displayed.
* guix/ui.scm (report-load-error): Check whether ARGS matches the
parameters for 'display-error' and call 'print-exception' otherwise.
'guix pull' was always doing it, and now '--with-branch' & co. will do
it as well.
* guix/git.scm (honor-system-x509-certificates!): New procedure.
(%certificates-initialized?): New variable.
(with-libgit2): Add call to 'honor-system-x509-certificates!'.
* guix/scripts/pull.scm (honor-x509-certificates): Call
'honor-system-x509-certificates!' and fall back to
'honor-lets-encrypt-certificates!'.
* guix/git.scm (<git-checkout>)[recursive?]: New field.
(latest-repository-commit*): Add #:recursive? and honor it.
(git-checkout-compiler): Honor the 'recursive?' field of CHECKOUT.
* guix/git.scm: Autoload (git submodule).
(url-cache-directory): Add #:recursive? and honor it.
(call-with-repository): New procedure.
(with-repository): New macro.
(update-submodules): New procedure.
(update-cached-checkout): Add #:recursive? and #:log-port and honor
them.
(latest-repository-commit): Add #:recursive? and honor it.
[dot-git?]: Recognize ".git" regular files when RECURSIVE? is true.
After a successful download, we'd erase the download-progress line, and
the end result would be two empty lines following the "downloading …"
line.
Reported by Ricardo Wurmus <rekado@elephly.net> at
<https://debbugs.gnu.org/cgi/bugreport.cgi?bug=33470#27>.
* guix/status.scm (print-build-event)[erase-current-line*]: Set to a
no-op when PRINT-LOG? is true.
Move calls to 'erase-current-line*' to the 'build-succeeded' and
'build-failed' events.
Previously, "guix package -r something-not-installed" would silently
complete. Now an error is raised.
* guix/profiles.scm (&unmatched-pattern-error): New condition type.
(manifest-matching-entries): Rewrite to raise an error when one of
PATTERNS is not matched.
* guix/ui.scm (call-with-error-handling): Handle 'unmatched-pattern-error?'.
* tests/guix-package.sh: Add test.
* tests/profiles.scm ("manifest-matching-entries"): Don't try to remove
unmatched pattern.
("manifest-matching-entries, no match"): New test.
("manifest-transaction-effects"): Remove 'remove' field.
Fixes <https://bugs.gnu.org/27476>.
This fixes multi-threaded compilation of this code where syntax
parameters could end up being redefined and where a race condition could
lead a thread to see the "wrong" value of the syntax parameter.
* guix/monads.scm (define-syntax-parameter-once): New macro.
(>>=, return): Use it.
* guix/gexp.scm (define-syntax-parameter-once): New macro.
(current-imported-modules, current-imported-extensions): Use it.
janestreet reversionned its packages and prefixed them with "v". Let the
importer know about that and choose "v" versions first.
* guix/import/opam.scm (find-latest-version): Work around version
rewrite from janestreet.
(opam->guix-package): Do not pass "v" to version number.
* guix/status.scm (<build>)[phase]: New field.
(%phase-start-rx): New variable.
(update-build): Add clause to match %PHASE-START-RX and adjust the
'phase' field accordingly.
* tests/status.scm ("compute-status, build phase"): Add test
* guix/status.scm (<build>): Define using
'define-immutable-record-type', and add 'set-build-completion' binding.
(update-build)[set-completion]: Remove.
Use 'set-build-completion' instead.
Previously the progress bar wouldn't be erased by the time the next
"building foo" line would be printed.
* guix/status.scm (print-build-event)[erase-current-line*]: New
procedure.
Call it instead of (display "\r").
Previously it would refer to
/var/guix/profiles/per-user/root/current-guix/bin/guix, which would fail
when that profile does not exist. This is notably the case when using
'channel-instance->package' as done in commit
7e6d8d366a.
* gnu/packages/package-management.scm (guix-daemon)[arguments]: In
'install phase, honor environment variable 'GUIX'.
* guix/self.scm (whole-package)[wrap]: New procedure.
Use it.
Fixes a regression introduced in
0ea939fb79.
* guix/scripts/package.scm (process-query) <'list-available>: Change
#:superseded? to #:deprecated? since that's what
'fold-available-packages' passes.
* guix/status.scm (print-build-event)[report-build-progress]: New
procedure.
[print-log-line]: Add ID parameter. Call 'report-build-progress' when
appropriate.
Adjust callers.
* guix/status.scm (<build>): New record type.
(build, matching-build): New procedures.
(compute-status): Adjust to manipulate <build> records instead of
derivation file names in 'build-status-builds-completed' and
'build-status-building'.
(build-event-output-port)[process-line]: Use 'string-split' to preserve
spaces.
* tests/status.scm ("compute-status, builds + substitutes")
("compute-status, missing events"): Adjust to expect <build> records.
Produce complete "build-started" events.
("compute-status, multiplexed build output"): Likewise, and remove
"bar.drv" from 'builds-completed'.
Previously if ~/.config/guix/current/bin was in $PATH, we'd still
suggest to run 'hash guix' because we'd compare (which "guix") against
/var/guix/profiles/per-user/….
* guix/scripts/pull.scm (build-and-install): Check whether (which
"guix") matches PROFILE or its user-friendly variant.
* guix/packages.scm (package-input-rewriting): Allow REPLACEMENTS to be
a promise.
* gnu/packages/guile.scm (package-for-guile-2.0): Delay the first
argument to 'package-input-rewriting'.
Works around <https://bugs.gnu.org/34102>.
Reported by Marius Bakke <mbakke@fastmail.com>.
* guix/build/download.scm (tls-wrap): Add "-VERS-TLS1.3" to the priority
string when (gnutls-version) is not prefixed by "3.5".
Until now, private and generated packages (e.g., those created by
'texlive-union') we missing from the list passed to 'node-back-edges',
which would lead to inaccurate dependent counts.
Previously we'd get:
$ guix refresh -l texlive-fonts-cm
Building the following 80 packages would ensure 116 dependent packages
are rebuilt: …
Now we have:
$ Building the following 240 packages would ensure 597 dependent
packages are rebuilt: …
* guix/scripts/refresh.scm (list-dependents): Call 'package-closure'.
The skip "~*" argument was misplaced, leading the number of dependents
to be skipped (instead of the number of covering packages.) Thus, we'd
get:
$ guix refresh -l ocaml4.02-ppx-deriving@4.1
Building the following package would ensure 1 dependent packages are rebuilt: bap@1.3.0
instead of:
Building the following package would ensure 26 dependent packages are rebuilt: bap@1.3.0
* guix/scripts/refresh.scm (list-dependents): Move "~*" in the right
place, to skip (length covering) rather than (length dependents).
Fixes a regression in 'guix pack -R' introduced with commit
c2dcff41c2. The imported modules of
'c-compiler' would be compiled in this order: first (guix records),
then (guix search-paths). Consequently,
'report-duplicate-field-specifier' would be reported as unbound while
compiling (guix search-paths), leading to a build failure.
* guix/records.scm (report-invalid-field-specifier)
(report-duplicate-field-specifier): Move within 'eval-expand'.
Fixes a regression introduced in
c2dcff41c2, whereby many tests in
'tests/packages.scm' would trigger a syntax error due to duplicate field
intializers in forms like:
(dummy-package "foo" (version "0"))
* guix/tests.scm (dummy-package, dummy-origin): Rewrite to inherit from
a base record. This restores the semantics from before
c2dcff41c2.
* tests/services.scm ("instantiate-missing-services, indirect"): Remove
duplicate 'extensions' field.
Until now we'd get things like:
guix build: error: build failed: build of `/gnu/store/….drv' failed
or:
$ guix gc -d /sdf
guix gc: error: build failed: path `/sdf' is not in the store
which is kinda ridiculous.
* guix/ui.scm (call-with-error-handling): Remove "build failed:" prefix
for 'store-protocol-error?'.
This is because (gnu tests docker) depends on (guix scripts pack).
* guix/self.scm (compiled-guix)[*system-test-modules*]: Add dependency
on *CLI-MODULES*.
* guix/records.scm (report-duplicate-field-specifier): New procedure.
(make-syntactic-constructor): Call it.
* tests/records.scm ("define-record-type* & duplicate initializers"):
New test.
Co-authored-by: Mark H Weaver <mhw@netris.org>
Previous warnings and errors such as those raised by (guix records)
would not be displayed during the load phase.
* guix/build/compile.scm (load-files): Remove 'parameterize' around
'resolve-interface' call.
(compile-files)[build]: Move 'with-fluids' for *CURRENT-WARNING-PREFIX*
to...
<top level>: ... here.
This fixes a regression introduced in 9a5091d0c1
whereby packages with git origin URIs not hosted on GitHub would be wrongly
detected as being covered under the github updater.
Reported by Efraim Flashner <efraim@flashner.co.il>.
* guix/import/github.scm (updated-github-url): Check if git URIs are GitHub
URIs.
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
3c0e16391e and
cb341c1219.
* 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.
Previously the imported modules and extensions of EXP would be missing
from the load path of 'guix repl'.
* guix/inferior.scm (gexp->derivation-in-inferior)[script]: New
variable.
[trampoline]: Write (primitive-load #$script) to PIPE. Add #$output.
* tests/channels.scm ("channel-instances->manifest")[depends?]: Check
for requisites rather than direct references.
Adjust callers accordingly.
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.
* guix/build/profiles.scm (build-etc/profile): When 'OUTPUT/etc/profile'
already exists, delete it first.
(build-profile): Likewise for 'OUTPUT/manifest'.
* tests/profiles.scm ("profile in profile"): New test.
Ludovic Courtès