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Fixes <http://bugs.gnu.org/18935>.
Reported by Mark H Weaver <mhw@netris.org>.
Previously, if tests/nar.scm ran concurrently with tests/gexp.scm, the
store item "foo" containing the string "Hello, world!" could be
deleted (via 'delete-paths') from the tests/nar.scm daemon while the
tests/gexp.scm daemon would still consider it live.
* tests/nar.scm ("restore-file-set (missing signature)"):
Use (random-text) rather than "Hello, world!", to avoid concurrent
deletion of store item "foo" used in tests/gexp.scm.
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Before, there was a cycle along the lines of:
(guix store) -> (guix nar) -> (guix ui) -> (guix store)
This caused problems, as discussed at:
http://lists.gnu.org/archive/html/guix-devel/2014-10/msg00109.html
This patch removes cycles in the (guix ...) modules.
* guix/nar.scm (&nar-error, &nar-read-error, dump, write-contents,
read-contents, %archive-version-1, write-file, restore-file): Move to...
* guix/serialization.scm: ... here.
* guix/store.scm: Remove dependency on (guix nar).
* guix/scripts/hash.scm, guix/scripts/offload.scm,
guix/scripts/substitute-binary.scm, tests/nar.scm, tests/store.scm,
tests/substitute-binary.scm: Adjust accordingly.
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* guix/tests.scm: New file.
* Makefile.am (noinst_DATA): New variable.
(GOBJECTS): Add guix/tests.go.
* tests/builders.scm (%store): Use 'open-connection-for-tests'
from (guix tests).
* tests/derivations.scm: Likewise.
* tests/monads.scm: Likewise.
* tests/packages.scm: Likewise.
* tests/profiles.scm: Likewise.
* tests/union.scm: Likewise.
* tests/gexp.scm: Likewise.
(guile-for-build): Remove. Use (%guile-for-build) instead.
* tests/nar.scm (make-random-bytevector, %seed, random-text): Remove.
(populate-file): Change 'make-random-bytevector' to 'random-bytevector'.
Use (guix tests).
* tests/store.scm (%seed, random-text): Remove.
Use (guix tests).
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* guix/nar.scm (write-file) <directory>: Pass 'string<?' as the second
argument to 'scandir'.
* tests/nar.scm ("write-file puts file in C locale collation order"):
New test.
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* guix/nar.scm (write-contents): Use 'sendfile' only when P is a file
port.
* tests/nar.scm ("write-file supports non-file output ports"): New test.
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* guix/nar.scm (&nar-invalid-hash-error, &nar-signature-error): New
condition types.
(&nar-error): Add 'file' and 'port' fields.
(&nar-read-error): Remove 'port' and 'file' fields.
(lock-store-file, unlock-store-file, finalize-store-file,
temporary-store-directory, restore-file-set): New procedures.
* tests/nar.scm (%seed): New variable.
(random-text): New procedure.
("restore-file-set (signed, valid)", "restore-file-set (missing
signature)", "restore-file-set (corrupt)"): New tests.
* po/Makevars (XGETTEXT_OPTIONS): Add '--keyword=message'.nar fixes
* po/POTFILES.in: Add guix/nar.scm.
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* tests/nar.scm (%test-dir): Compute relative to `pre-inst-env', which
is in $top_builddir.
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* tests/nar.scm ("write-file + restore-file with symlinks"): Add (rm-rf
output).
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* guix/nar.scm (write-file): Add case for type `symlink'.
(restore-file): Likewise.
* tests/nar.scm (random-file-size, make-file-tree, delete-file-tree,
with-file-tree, file-tree-equal?, make-random-bytevector,
populate-file): New procedures.
(%test-dir): New variable.
("write-file + restore-file"): Use `%test-dir' and `file-tree-equal?'.
("write-file + restore-file with symlinks"): New test.
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* guix/nar.scm (&nar-error, &nar-read-error): New condition types.
(dump): New procedure.
(write-contents)[dump]: Remove. Use the one above instead.
(read-contents, write-file, restore-file): New procedures.
(%archive-version-1): New variable.
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