Re: [Haskell-cafe] [ANN] Darcs 2.18.1 release

The support for newer GHCs is quite welcome! Makes it possible to compile without the LLVM backend on M1 macs. Thanks!

On Feb 25, 2024, at 12:47 PM, Ganesh Sittampalam wrote:

Hi,

On behalf of the Darcs team, I would like to announce the release of Darcs 2.18.1 [1].

The full release notes [2] are appended below.

Regards,

Ganesh

[1] https://hackage.haskell.org/package/darcs-2.18.1 [2] https://hackage.haskell.org/package/darcs-2.18.1/changelog

Darcs 2.18.1, 25 Feb 2024

* Supports GHC 9.8 and the most recent version of other dependencies at the time of release, with the exception of the tls 2.0 package, which has been held back because of problems connecting to hub.darcs.net (see https://bugs.darcs.net/issue2715).

* Substantial rewrite of the 'darcs test' command.

The most important user visible change is that a test script can now return an exit code of 125 to reflect an untestable/skipped state (as with with "git bisect run").

This in turn means that a group of patches can be found to be responsible for a failure rather than just a single one. By default, Darcs will try to minimise such a group by reordering patches to remove irrelevant ones from the initial group found from the patch ordering in the repository. This behaviour can be disabled with --no-shrink-failure.

* Remove support for downloading via curl

This is no longer particularly useful as we now use modern, maintained Haskell libraries for native HTTP downloading, and substantially simplifies this area of the code.

* Patch index: Significant performance improvement

The patch index is used in commands like annotate and log. A couple of performance improvements were made that should speed up using the patch index.

* Progress reporting

Progress reports are now provided during more long-running operations, including updating the "index" (a cache that speeds up detecting changes in the working directory), and during merge operations.

They also behave better on Windows and when outputting long lines.

* Other changes/fixes: * Use hardlinks more often to share files between repositories/caches. * Support --leave-test-dir for all commands that support --test * Avoid extraneous "repo:." entries in _darcs/prefs/sources [issue2672] * Add 'darcs clean' command as an alias for 'darcs revert -l' * 'darcs rebase unsuspend': add more patch editing options * Fix stale lock files after Ctrl-C * External merge tools: preserve output, and fail if tool does * Properly reference renamed files in external merge [issue189] * Mark conflicts properly if tag pulled at the same time [issue2682] * Remove the useless optimize pristine subcommand * 'darcs convert': honour the --compress and --diff-algorithm options * Fix contrib/darcs-shell [issue2646] * Fix 'darcs pull --dont-allow-conflicts' with external-merge [issue1819] * Problems with local pristine files now tell user to run 'darcs repair' [issue1981] * Fix various problems with symlinks, including on Windows * Add --no-prefs-templates option when creating a repository * Allow 'darcs rebase unsuspend' when there are non-conflicting unrecorded changes * Handle broken pending patches in 'darcs check' and 'darcs repair' * Improve error reporting when remote _darcs/format doesn't exist * 'darcs optimize reorder': add --deep/--shallow options * 'darcs optimize compress/uncompress': also handle pristine files * 'darcs optimize cache': don't work with lists of darcs repos Instead just the global cache is cleaned by checking hard-link counts * Skip the pager when $DARCS_PAGER / $PAGER are set to the empty string * 'darcs convert export': allow relative paths for --read-marks and --write-marks * Fix 'darcs amend --unrecord' to move unrecorded changes to pending [issue2697] * Don't treat cancelling an operation as failure [issue2074] * Fix cloning of ssh repo when using Ctrl-C to stop getting patches [issue2701] * Don't report invalid regexes as a bug in darcs [issue2702] * Add short option -n for --dry-run * 'darcs diff': support --look-for-moves and --look-for-adds * Fix buffering problem with 'darcs diff' [issue2704] * 'darcs obliterate' and 'darcs rebase': offer to revert any conflicting unrecorded changes * Stop displaying context lines in various interactive scenarios: it didn't work properly and would require a lot of work to fix. * Improve conflict display for Rebase and V3 patches * Increase size limit to 100K for environment variables like DARCS_PATCHES_XML, and warn when it is exceeded * 'darcs rebase unsuspend': improve the display of dropped dependencies * 'darcs amend --ask-deps': also provide a way to remove dependencies * 'darcs push': support --reorder-patches option * Remove the --remote-repo option * Don't display hints about using --set-default * Conflict resolution: unrecorded changes will suppress conflict marking of appropriate changes [issue2708] * Explain what a "clean tag" is in help for tag command * Fix problem with naming patch bundles after patches that contain characters incompatible with the current locale [issue2716]

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