* gnu/packages/tex.scm (lyx)[arguments]: Adjust configure-flags to not
add the version to the binary's suffix. Remove custom
'patch-desktop-file, 'setenv-check and 'install-symlink phases.
* gnu/packages/tex.scm (lyx): Update to 2.3.5.1.
[arguments]: Remove 'fix-compilation-with-boost-1.69 phase. In
'patch-python phase patch more files, substitute with python3. Split
'setenv-check and create empty file after 'unpack.
Previously call-with-transaction would both retry when SQLITE_BUSY errors were
thrown and do what its name suggested (start and rollback/commit a
transaction). This changes it to do only what its name implies, which
simplifies its implementation. Retrying is provided by the new
call-with-SQLITE_BUSY-retrying procedure.
* guix/store/database.scm (call-with-transaction): no longer restarts, new
#:restartable? argument controls whether "begin" or "begin immediate" is
used.
(call-with-SQLITE_BUSY-retrying, call-with-retrying-transaction,
call-with-retrying-savepoint): new procedures.
(register-items): use call-with-retrying-transaction to preserve old
behavior.
* .dir-locals.el (call-with-retrying-transaction,
call-with-retrying-savepoint): add indentation information.
update-or-insert can break if an insert occurs between when it decides whether
to update or insert and when it actually performs that operation. Putting the
check and the update/insert operation in the same transaction ensures that the
update/insert will only succeed if no other write has occurred in the middle.
* guix/store/database.scm (call-with-savepoint): new procedure.
(update-or-insert): use call-with-savepoint to ensure the read and the
insert/update occur within the same transaction.
Most of our queries would fail to finalize their statements properly if sqlite
returned an error during their execution. This resolves that, and also makes
them somewhat more concise as a side-effect.
This also makes some small changes to improve certain queries where behavior
was strange or overly verbose.
* guix/store/database.scm (call-with-statement): new procedure.
(with-statement): new macro.
(last-insert-row-id, path-id, update-or-insert, add-references): rewrite to
use with-statement.
(update-or-insert): factor last-insert-row-id out of the end of both
branches.
(add-references): remove pointless last-insert-row-id call.
* .dir-locals.el (with-statement): add indenting information.
guile-sqlite3 provides statement caching, making it unnecessary for sqlite to
keep re-preparing statements that are frequently used. Unfortunately it
doesn't quite emulate the semantics of sqlite_finalize properly, because it
doesn't cause a commit if the statement being finalized is the last "active"
statement (see https://notabug.org/guile-sqlite3/guile-sqlite3/issues/12). We
work around this by wrapping sqlite-finalize with our own version that ensures
sqlite-reset is called, which does The Right Thing™.
* guix/store/database.scm (sqlite-finalize): new procedure that shadows the
sqlite-finalize from (sqlite3).
