History, provenance, and recovery

Version 7.5.0

New features

• Add automated data recovery (#945). This is still experimental and disabled by default. Requires make(recover = TRUE).
• Add new functions recoverable() and r_recoverable() to show targets that are outdated but recoverable via make(recover = TRUE).
• Track the history and provenance of targets, viewable with drake_history(). Powered by txtq (#918, #920).
• Add a new no_deps() function, similar to ignore(). no_deps() suppresses dependency detection but still tracks changes to the literal code (#910).
• Add a new "autoclean" memory strategy (#917).
• Export transform_plan().
• Allow a custom seed column of drake plans to set custom seeds (#947).
• Add a new seed trigger to optionally ignore changes to the target seed (#947).

Enhancements

• In drake_plan(), interpret custom columns as non-language objects (#942).
• Suggest and assert clustermq >= 0.8.8.
• Log the target name in a special column in the console log file (#909).
• Rename the "memory" memory strategy to "preclean" (with deprecation; #917).
• Deprecate ensure_workers in drake_config() and make().
• Warn when the user supplies additional arguments to make() after config is already supplied.
• Prevent users from running make() from inside the cache (#927).
• Add CITATION file with JOSS paper.
• In deps_profile(), include the seed and change the names.
• Allow the user to set a different seed in make(). All this does is invalidate old targets.
• Use set_hash() and get_hash() in storr to double the speed of progress tracking.

Bug fixes

• In the static code analysis for dependency detection, ignore list elements referenced with $ (#938).
• Minor: handle strings embedded in language objects (#934).
• Minor: supply xxhash64 as the default hash algorithm for non-storr hashing if the driver does not have a hash algorithm.