| Age | Commit message (Expand) | Author |
|---|
| 2022-03-07 | derivations: Coalesce inputs that have the same output path....Fixes <https://issues.guix.gnu.org/54209>.
* guix/derivations.scm (coalesce-duplicate-inputs): Use the output paths
of DRV as a hash table key.
* tests/derivations.scm ("derivation with duplicate fixed-output
inputs"): Expect a single input for FINAL.
("derivation with equivalent fixed-output inputs"): New test.
| Ludovic Courtès |
| 2021-11-18 | derivations: Officially deprecate 'build-expression->derivation'....This procedure had been semi-deprecated since 2014, starting with commit
21b679f6944f4e1f09f949322f5242b761dc22a7!
* guix/derivations.scm (build-expression->derivation): Define using
'define-deprecated'.
| Ludovic Courtès |
| 2021-07-27 | derivations: Make 'coalesce-duplicate-inputs' linear in the number of inputs....Partly fixes <https://issues.guix.gnu.org/49439>.
Reported by Ricardo Wurmus <rekado@elephly.net>.
When running the command:
guix environment pigx-scrnaseq --search-paths --no-grafts
this change reduces total heap allocations from 1.4GiB to 717MiB (49%)
and wall-clock time from 7.5s to 5.7s (24%).
Without '--no-grafts', heap allocations go from 2.1GiB to 1.4GiB (33%)
and wall-clock time from 12.1s to 10.9s (10%).
* guix/derivations.scm (coalesce-duplicate-inputs): Rewrite using a hash
table to make it O(N) rather than O(N²).
| Ludovic Courtès |
| 2020-08-28 | derivations: Avoid uses of 'write' in 'write-derivation'....This leads a 4% improvement on the wall-clock time of:
guix build -e '(@@ (gnu packages libreoffice) libreoffice)' --no-grafts -d
* guix/derivations.scm (escaped-string): New procedure.
(write-derivation)[write-escaped-string]: New procedure.
[write-string-list, write-output, write-env-var]: Use it.
| Ludovic Courtès |
| 2020-08-28 | derivations: Avoid uses of 'display' in 'write-derivation'....This yields a 4% improvement on the wall-clock time of:
guix build -e '(@@ (gnu packages libreoffice) libreoffice)' --no-grafts -d
* guix/derivations.scm (write-sequence, write-list, write-tuple): Use
'put-char' instead of 'display'.
(write-derivation): Use 'put-string' and 'put-char', and remove unused
'format' binding.
| Ludovic Courtès |
| 2020-02-03 | Merge branch 'staging' into core-updates | Marius Bakke |
| 2020-01-30 | derivations: Import modules with 'add-file-tree-to-store'....This reduces the number of RPCs on "guix build libreoffice -nd" from
2,589 to 2,558 (1%).
* guix/derivations.scm (imported-files): Rewrite to call to
'add-file-tree-to-store'. Remove #:system and #:guile parameters.
(%imported-modules): Adjust docstring to say that result is a store
item, and adjust 'imported-files' call.
(%compiled-modules): Adjust accordingly.
(imported+compiled-modules): Likewise.
(build-expression->derivation): Likewise.
| Ludovic Courtès |
| 2020-01-23 | derivations: Inline 'find' in 'coalesce-duplicate-inputs'....Previously the first argument to 'find' would show up high in profiles
of 'package-derivation'. This speeds things up a big, especially on
Guile 3.
* guix/derivations.scm (coalesce-duplicate-inputs)[find]: New
procedure.
| Ludovic Courtès |
| 2019-12-07 | derivations: Add 'derivation-input-fold'....* guix/derivations.scm (derivation-input-fold): New procedure.
(substitution-oracle)[closure]: Rewrite in terms of
'derivation-input-fold'.
* tests/derivations.scm ("derivation-input-fold"): New test.
| Ludovic Courtès |
| 2019-11-07 | derivations: Use a regular hash table for the module cache....The hit rate of the 'add-data-to-store' cache goes from 10% to 4% on:
guix build -e '(@@ (gnu packages libreoffice) libreoffice)' -nd
* guix/derivations.scm (%module-cache): Turn into a regular hash table.
It didn't make sense to use a weak-value hash table given that values
are pairs.
| Ludovic Courtès |
| 2019-10-28 | derivation: Remove memoization invalidation for 'derivation->bytevector'....This is a followup to d727a9343d861cf775645df8be5bfefd43d6c6f0, which
broke 'hydra-jobs' from (gnu ci).
* guix/derivations.scm (invalidate-derivation-caches!): Remove call to
'invalidate-memoization!' for 'derivation->bytevector'.
| Ludovic Courtès |
| 2019-10-27 | derivations: Don't memoize 'derivation->bytevector'....Its hit rate was only 8%. Removing it reduces heap size of "guix build
libreoffice -nd" from 69MiB to 61MiB and the wall-clock time is unchanged.
* guix/derivations.scm (derivation->bytevector): Change from 'mlambda'
to 'lambda'.
| Ludovic Courtès |
| 2019-10-27 | derivations: 'build-expression->derivation' caches its module derivations....This reduces the number of lookups in the 'add-data-to-store' cache from
7505 to 3329 (hit rate from 68% to 27%) when running:
GUIX_PROFILING=add-data-to-store-cache guix build libreoffice -nd
The execution time of "guix build libreoffice -nd" goes from 2.12s to 1.87s.
* guix/derivations.scm (%module-cache): New variable.
(imported+compiled-modules)[key]: New variable.
Lookup KEY in %MODULE-CACHE and populate %MODULE-CACHE upon cache miss.
| Ludovic Courtès |
| 2019-10-27 | derivations: Introduce 'imported+compiled-modules'....* guix/derivations.scm (imported+compiled-modules): New procedure.
(build-expression->derivation): Use it instead of separate calls to
'%imported-modules' and '%compiled-modules'.
| Ludovic Courtès |
| 2019-08-17 | derivations: Fix typo in docstring....* guix/derivations.scm (derivation-build-plan): Fix typo in the
docstring.
| Ludovic Courtès |
| 2019-08-16 | derivations: Delete duplicate inputs when computing derivation hash....Fixes <https://bugs.gnu.org/36777>.
Reported by Carl Dong <contact@carldong.me>.
* guix/derivations.scm (derivation/masked-inputs): Call
'delete-duplicates' on INPUTS.
* tests/derivations.scm ("derivation with duplicate fixed-output inputs"):
New test.
| Ludovic Courtès |
| 2019-07-15 | gexp: 'lowered-gexp-guile' now returns a <derivation-input>....* guix/derivations.scm (derivation-input-output-path): New procedure.
* guix/gexp.scm (lower-gexp): Wrap GUILE in a <derivation-input>.
(gexp->derivation): Adjust accordingly.
* guix/remote.scm (remote-pipe-for-gexp, remote-eval): Adjust
accordingly.
* tests/gexp.scm ("lower-gexp"): Adjust accordingly.
| Ludovic Courtès |
| 2019-07-15 | derivations: Deprecate the previous calling convention....We will eventually require #:inputs to be a list of <derivation-input>;
store items will have to be passed as #:sources, already interned.
* guix/derivations.scm (warn-about-derivation-deprecation): New procedure.
(derivation): Add #:%deprecation-warning? parameter.
[warn-deprecation]: New macro.
[input->derivation-input, input->source]: Use it.
(build-expression->derivation): Pass #:%deprecation-warning?.
* po/guix/POTFILES.in: Add guix/derivations.scm.
| Ludovic Courtès |
| 2019-07-15 | derivations: 'map-derivation' uses the new 'derivation' calling convention....* guix/derivations.scm (map-derivation)[input->output-paths]: Adjust to
deal with an argument that's either 'derivation-input?' or a string.
[rewritten-input]: Return a <derivation-input> or a string.
Pass #:inputs and #:sources to 'derivation'.
| Ludovic Courtès |
| 2019-07-15 | derivations: 'derivation' primitive accepts <derivation> and #:sources....This brings us closer to the <derivation> data type.
* guix/derivations.scm (derivation): Add #:sources parameter.
[input->derivation-input]: Add clause for 'derivation-input?'.
Honor SOURCES.
| Ludovic Courtès |
| 2019-07-05 | derivations: Simplify 'substitution-oracle'....* guix/derivations.scm (substitution-oracle)[valid?, dependencies]:
Remove.
[closure]: New procedure.
Rename parameter from 'drv' to 'inputs-or-drv' and adjust accordingly.
(derivation-build-plan): Pass INPUTS directly to 'substitution-oracle'.
* guix/ui.scm (show-what-to-build)[substitutable-info]: Likewise.
| Ludovic Courtès |
| 2019-07-05 | derivations: 'derivation-build-plan' recurses on substituables....This fixes a bug whereby "guix build texlive -n" would report:
0.0 MB would be downloaded:
/gnu/store/…-texlive-20180414
instead of:
The following derivation would be built:
/gnu/store/…-texlive-texmf-20180414.drv
2,595.2 MB would be downloaded:
/gnu/store/…-texlive-20180414-texmf.tar.xz
/gnu/store/…-texlive-20180414
where 'texlive-texmf' is a non-substitutable dependency of 'texlive'.
* guix/derivations.scm (dependencies-of-substitutables): New procedure.
(derivation-build-plan): When 'input-substitutable-info' returns true,
append the subset of DEPS that corresponds to SUBSTITUABLES to the first
argument of 'loop'.
* guix/ui.scm (show-what-to-build): Remove half-baked traversal of
DOWNLOAD.
* tests/derivations.scm ("derivation-build-plan and substitutes,
non-substitutable dep"): New test.
| Ludovic Courtès |
| 2019-07-03 | derivations: 'substitution-oracle' no longer calls 'read-derivation-from-file'....This is a followup to 5cf4b26d52bcea382d98fb4becce89be9ee37b55.
* guix/derivations.scm (substitution-oracle): Use
'derivation-input-derivation' instead of calling
'read-derivation-from-file'.
| Ludovic Courtès |
| 2019-07-03 | derivations: Avoid another call to 'read-derivation-from-file'....This is a followup to 5cf4b26d52bcea382d98fb4becce89be9ee37b55.
* guix/derivations.scm (derivation-path->base16-hash): Rename to...
(derivation-base16-hash): ... this, and take a <derivation> rather than
a file name. Use 'mlambdaq' instead of 'mlambda'.
(derivation/masked-inputs): Adjust accordingly.
(invalidate-derivation-caches!): Likewise.
| Ludovic Courtès |
| 2019-07-03 | derivations: 'map-derivation' no longer calls 'read-derivation-from-file'....This is a followup to 5cf4b26d52bcea382d98fb4becce89be9ee37b55.
* guix/derivations.scm (map-derivation)[rewritten-input]: Avoid call to
'read-derivation-from-file'.
| Ludovic Courtès |
| 2019-07-03 | derivations: Work around pathological memoization behavior....This works around <https://bugs.gnu.org/36487>.
* guix/derivations.scm (invalidate-derivation-caches!): Comment out
'hash-clear!' call.
| Ludovic Courtès |
| 2019-07-02 | derivations: Update 'build-derivations' docstring....This is a followup to 7c690a47381f645ec5ec0a1fd6ffc34dba1b69c2.
* guix/derivations.scm (build-derivations): Update docstring.
| Ludovic Courtès |
| 2019-06-27 | derivations: 'build-derivations' can be passed derivation inputs....* guix/derivations.scm (build-derivations): Accept <derivation-input>
records among DERIVATIONS.
* tests/derivations.scm ("build-derivations with specific output"): Test
it.
| Ludovic Courtès |
| 2019-06-27 | derivations: 'derivation' preserves pointer equality....* guix/derivations.scm (derivation): Check if FILE is already in
%DERIVATION-CACHE and return it if it is.
| Ludovic Courtès |
| 2019-06-27 | derivations: <derivation-input> now aggregates a <derivation>....Consequently, the whole graph of <derivation> object is readily
available without having to go through 'read-derivation-from-file',
which could have cache misses if the requested <derivation> object had
been GC'd in the meantime. This is an important property for the
performance of things like 'derivation-build-plan' that traverse the
derivation graph.
* guix/derivations.scm (<derivation-input>): Replace 'path' field by
'derivation'.
(derivation-input-path): Adjust accordingly.
(derivation-input-key): New procedure.
(derivation-input-output-paths): Adjust accordingly.
(coalesce-duplicate-inputs): Likewise.
(derivation-prerequisites): Use 'derivation-input-key' to compute keys
for INPUT-SET.
(derivation-build-plan): Likewise.
(read-derivation): Add optional 'read-derivation-from-file' parameter.
[make-input-drvs]: Call it.
(write-derivation)[write-input]: Adjust to new <derivation-input>.
(derivation/masked-inputs): Likewise, and remove redundant
'coalesce-duplicate-inputs' call.
(derivation)[input->derivation-input]: Change to consider only the
derivation case. Update call to 'make-derivation-input'.
[input->source]: New procedure.
Separate sources from inputs.
(map-derivation): Adjust to new <derivation-input>.
* tests/derivations.scm ("parse & export"): Pass a second argument to
'read-derivation'.
("build-expression->derivation and derivation-prerequisites")
("derivation-prerequisites and valid-derivation-input?"): Adjust to new
<derivation-input>.
| Ludovic Courtès |
| 2019-06-27 | derivations: Rewrite and replace 'derivations-prerequisites-to-build'....The new 'derivation-build-plan' procedure has a more appropriate
signature: it takes a list of <derivation-inputs> instead of taking one
<derivation>. Its body is also much simpler.
* guix/derivations.scm (derivation-build-plan): New procedure.
(derivation-prerequisites-to-build): Express in terms of
'derivation-build-plan' and mark as deprecated.
* tests/derivations.scm: Change 'derivation-prerequisites-to-build'
tests to 'derivation-build-plan' and adjust accordingly.
| Ludovic Courtès |
| 2019-06-27 | derivations: Add 'derivation-input'....* guix/derivations.scm (derivation-input): New procedure.
* tests/grafts.scm (make-derivation-input): Remove.
("graft-derivation, unused outputs not depended on"): Use
'derivation-input'.
| Ludovic Courtès |
| 2019-06-19 | derivations: Add 'derivation-input-derivation'....* guix/derivations.scm (derivation-input-derivation): New procedure.
(derivation-prerequisites): Use it.
| Ludovic Courtès |
| 2019-06-10 | store: 'build-things' accepts derivation/output pairs....This allows callers to request the substitution of a single derivation
output.
* guix/store.scm (build-things): Accept derivation/output pairs among
THINGS.
* guix/derivations.scm (build-derivations): Likewise.
* tests/store.scm ("substitute + build-things with specific output"):
New test.
* tests/derivations.scm ("build-derivations with specific output"):
New test.
* doc/guix.texi (The Store): Adjust accordingly.
| Ludovic Courtès |
| 2019-04-16 | derivations: Reduce 'valid-path?' RPCs in 'derivation-prerequisites-to-build'....On a profile with 280 packages, this reduces the number of
'valid-paths?' RPCs made by 'guix package -nu' from 6K to 500.
* guix/derivations.scm (derivation-prerequisites-to-build)[built?]:
Memoize 'valid-path?' calls.
| Ludovic Courtès |
| 2019-01-21 | store: Rename '&nix-error' to '&store-error'....* guix/store.scm (&nix-error): Rename to...
(&store-error): ... this, and adjust users.
(&nix-connection-error): Rename to...
(&store-connection-error): ... this, and adjust users.
(&nix-protocol-error): Rename to...
(&store-protocol-error): ... this, adjust users.
(&nix-error, &nix-connection-error, &nix-protocol-error): Define these
condition types and their getters as deprecrated aliases.
* build-aux/run-system-tests.scm, guix/derivations.scm,
guix/grafts.scm, guix/scripts/challenge.scm,
guix/scripts/graph.scm, guix/scripts/lint.scm,
guix/scripts/offload.scm, guix/serialization.scm,
guix/ssh.scm, guix/tests.scm, guix/ui.scm,
tests/derivations.scm, tests/gexp.scm, tests/guix-daemon.sh,
tests/packages.scm, tests/store.scm, doc/guix.texi: Adjust to use the
new names.
| Ludovic Courtès |
| 2018-11-28 | derivations: Add properties....* guix/derivations.scm (derivation): Add #:properties parameter.
[user+system-env-vars]: Honor it.
(derivation-properties): New procedure.
(build-expression->derivation): Add #:properties and pass it to
'derivation'.
* guix/gexp.scm (gexp->derivation): Likewise.
* tests/derivations.scm ("derivation-properties"): New test.
* tests/gexp.scm ("gexp->derivation properties"): New test.
* doc/guix.texi (Derivations, G-Expressions): Adjust accordingly.
| Ludovic Courtès |
| 2018-09-04 | Switch to Guile-Gcrypt....This removes (guix hash) and (guix pk-crypto), which now live as part of
Guile-Gcrypt (version 0.1.0.)
* guix/gcrypt.scm, guix/hash.scm, guix/pk-crypto.scm,
tests/hash.scm, tests/pk-crypto.scm: Remove.
* configure.ac: Test for Guile-Gcrypt. Remove LIBGCRYPT and
LIBGCRYPT_LIBDIR assignments.
* m4/guix.m4 (GUIX_ASSERT_LIBGCRYPT_USABLE): Remove.
* README: Add Guile-Gcrypt to the dependencies; move libgcrypt as
"required unless --disable-daemon".
* doc/guix.texi (Requirements): Likewise.
* gnu/packages/bash.scm, guix/derivations.scm, guix/docker.scm,
guix/git.scm, guix/http-client.scm, guix/import/cpan.scm,
guix/import/cran.scm, guix/import/crate.scm, guix/import/elpa.scm,
guix/import/gnu.scm, guix/import/hackage.scm,
guix/import/texlive.scm, guix/import/utils.scm, guix/nar.scm,
guix/pki.scm, guix/scripts/archive.scm,
guix/scripts/authenticate.scm, guix/scripts/download.scm,
guix/scripts/hash.scm, guix/scripts/pack.scm,
guix/scripts/publish.scm, guix/scripts/refresh.scm,
guix/scripts/substitute.scm, guix/store.scm,
guix/store/deduplication.scm, guix/tests.scm, tests/base32.scm,
tests/builders.scm, tests/challenge.scm, tests/cpan.scm,
tests/crate.scm, tests/derivations.scm, tests/gem.scm,
tests/nar.scm, tests/opam.scm, tests/pki.scm,
tests/publish.scm, tests/pypi.scm, tests/store-deduplication.scm,
tests/store.scm, tests/substitute.scm: Adjust imports.
* gnu/system/vm.scm: Likewise.
(guile-sqlite3&co): Rename to...
(gcrypt-sqlite3&co): ... this. Add GUILE-GCRYPT.
(expression->derivation-in-linux-vm)[config]: Remove.
(iso9660-image)[config]: Remove.
(qemu-image)[config]: Remove.
(system-docker-image)[config]: Remove.
* guix/scripts/pack.scm: Adjust imports.
(guile-sqlite3&co): Rename to...
(gcrypt-sqlite3&co): ... this. Add GUILE-GCRYPT.
(self-contained-tarball)[build]: Call 'make-config.scm' without
#:libgcrypt argument.
(squashfs-image)[libgcrypt]: Remove.
[build]: Call 'make-config.scm' without #:libgcrypt.
(docker-image)[config, json]: Remove.
[build]: Add GUILE-GCRYPT to the extensions Remove (guix config) from
the imported modules.
* guix/self.scm (specification->package): Remove "libgcrypt", add
"guile-gcrypt".
(compiled-guix): Remove #:libgcrypt.
[guile-gcrypt]: New variable.
[dependencies]: Add it.
[*core-modules*]: Remove #:libgcrypt from 'make-config.scm' call.
Add #:extensions.
[*config*]: Remove #:libgcrypt from 'make-config.scm' call.
(%dependency-variables): Remove %libgcrypt.
(make-config.scm): Remove #:libgcrypt.
* build-aux/build-self.scm (guile-gcrypt): New variable.
(make-config.scm): Remove #:libgcrypt.
(build-program)[fake-gcrypt-hash]: New variable.
Add (gcrypt hash) to the imported modules. Adjust load path
assignments.
* gnu/packages/package-management.scm (guix)[propagated-inputs]: Add
GUILE-GCRYPT.
[arguments]: In 'wrap-program' phase, add GUILE-GCRYPT to the search
path.
| Ludovic Courtès |
| 2018-01-11 | derivations: Fix typo in docstring....* guix/derivations.scm (derivation-prerequisites): Fix typo in docstring.
| Ludovic Courtès |
| 2017-12-13 | hydra: Invalidate derivation caches after each architecture evaluation....This reduces max RSS from 1.3G to 1.0G.
* guix/derivations.scm (invalidate-derivation-caches!): New procedure.
* build-aux/hydra/gnu-system.scm (hydra-jobs): Use it. Add 'format'
call.
| Ludovic Courtès |
| 2017-12-13 | derivations: Don't memoize 'derivation-hash'....This has little or no run-time impact and slightly reduces the memory
footprint.
* guix/derivations.scm (derivation-hash): Replace 'mlambda' with
'lambda'.
| Ludovic Courtès |
| 2017-12-13 | derivations: Split 'derivation-hash' in two procedures....* guix/derivations.scm (derivation/masked-inputs): New procedure.
(derivation-hash): Use it instead of the inline code.
| Ludovic Courtès |
| 2017-12-13 | Revert "derivations: 'derivation-hash' assumes inputs are coalesced."...This reverts commit 1d008d9f8c44dfdb808235d451b72f255e72f103.
Reported by Rutger Helling <rhelling@mykolab.com>.
Fixes <https://bugs.gnu.org/29689>.
| Ludovic Courtès |
| 2017-12-12 | derivations: 'derivation-hash' assumes inputs are coalesced....* guix/derivations.scm (derivation-hash): Remove
redundant 'coalesce-duplicate-inputs' call.
| Ludovic Courtès |
| 2017-12-12 | derivations: Use 'define-immutable-record-type' as appropriate....This is a followup to dc673fa1131fb5d1e5ca29acb4a693cfb906986f.
* guix/derivations.scm (<derivation-output>, <derivation-input>): Use
'define-immutable-record-type'.
| Ludovic Courtès |
| 2017-06-12 | derivations: Introduce 'read-derivation-from-file'....This avoids the open/fstat/close syscalls upon a cache hit that we had
with the previous idiom:
(call-with-input-file file read-derivation)
where caching happened in 'read-derivation' itself.
* guix/derivations.scm (%read-derivation): Rename to...
(read-derivation): ... this.
(read-derivation-from-file): New procedure.
(derivation-prerequisites, substitution-oracle)
(derivation-prerequisites-to-build):
(derivation-path->output-path, derivation-path->output-paths):
(derivation-path->base16-hash, map-derivation): Use
'read-derivation-from-file' instead of (call-with-input-file …
read-derivation).
* guix/grafts.scm (item->deriver): Likewise.
* guix/scripts/build.scm (log-url, options->things-to-build): Likewise.
* guix/scripts/graph.scm (file->derivation): Remove.
(derivation-dependencies, %derivation-node-type): Use
'read-derivation-from-file' instead.
* guix/scripts/offload.scm (guix-offload): Likewise.
* guix/scripts/perform-download.scm (guix-perform-download): Likewise.
* guix/scripts/publish.scm (load-derivation): Remove.
(narinfo-string): Use 'read-derivation-from-file'.
| Ludovic Courtès |
| 2017-06-02 | derivations: 'derivation-prerequisites-to-build' returns <substitutable>....* guix/derivations.scm (derivation-prerequisites-to-build): Rename
#:substitutable? to #:substitutable-info.
[derivation-substitutable?]: Rename to...
[derivation-substitutable-info]: ... this. Return a list of <substitutable>.
Second return value is now a list of <substitutable> instead of a list
of strings.
* guix/ui.scm (show-what-to-build)[substitutable?]: Rename to...
[substitutable-info]: ... this.
Adjust to new 'derivation-prerequisites-to-build' return value type.
* tests/derivations.scm ("derivation-prerequisites-to-build and
substitutes"): Adjust.
("derivation-prerequisites-to-build and substitutes, local build"):
Likewise.
| Ludovic Courtès |
| 2017-06-02 | derivations: 'substitution-oracle' returns a <substitutable>....* guix/derivations.scm (substitution-oracle): Use
'substitution-path-info' instead of 'substitution-paths'. Turn SUBST
into a vhash from path to <substitutable>. Change the returned
procedure to provide a <substitutable> instead of a Boolean.
* tests/derivations.scm ("substitution-oracle and #:substitute? #f"):
Mock 'substitutable-path-info' instead of 'substitutable-paths'.
| Ludovic Courtès |
| 2017-05-04 | store: Add store path computation procedures....* guix/derivations.scm (compressed-hash, store-path)
(output-path, fixed-output-path): Move to...
* guix/store.scm: ... here.
| Ludovic Courtès |
| 2017-04-21 | derivations: Restore UTF-8 encoding of build scripts....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
2dce88d5bbe7a65e101c0734d1c6db44ecc8c299.
* tests/derivations.scm ("build-expression->derivation and builder
encoding"): New test.
| Ludovic Courtès |
