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Faster, leaner, and compatible with tibble 2.0.0
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@wlandau wlandau released this 10 Dec 14:04
v6.2.0
8618eda

New features

  • Add a sep argument to gather_by(), reduce_by(), reduce_plan(), evaluate_plan(), expand_plan(), plan_analyses(), and plan_summaries(). Allows the user to set the delimiter for generating new target names.
  • Expose a hasty_build argument to make() and drake_config(). Here, the user can set the function that builds targets in "hasty mode" (make(parallelism = "hasty")).
  • Add a new drake_envir() function that returns the environment where drake builds targets. Can only be accessed from inside the commands in the workflow plan data frame. The primary use case is to allow users to remove individual targets from memory at predetermined build steps.

Bug fixes

  • Ensure compatibility with tibble 2.0.0.
  • Stop returning 0s from predict_runtime(targets_only = TRUE) when some targets are outdated and others are not.
  • Remove sort(NULL) warnings from create_drake_layout(). (Affects R-3.3.x.)

Enhancements

  • Large speed boost: reduce repeated calls to parse() in code_dependencies().
  • Large speed boost: change the default value of memory_strategy (previously pruning_strategy) to "speed" (previously "lookahead").
  • Compute a special data structure in drake_config() (config$layout) just to store the code analysis results. This is an intermediate structure between the workflow plan data frame and the graph. It will help clean up the internals in future development.
  • Improve memoized preprocessing: deparse all the functions in the environment so the memoization does not react so spurious changes in R internals. Related: #345.
  • Use the label argument to future() inside make(parallelism = "future"). That way , job names are target names by default if job.name is used correctly in the batchtools template file.
  • Remove strict dependencies on packages dplyr, evaluate, fs, future, magrittr, parallel, R.utils, stats, stringi, tidyselect, and withr.
  • Remove package rprojroot from "Suggests".
  • Deprecate the force argument in all functions except make() and drake_config().
  • Change the name of prune_envir() to manage_memory().
  • Deprecate and rename the pruning_strategy argument to memory_strategy (make() and drake_config()).
  • Print warnings and messages to the console_log_file in real time (#588).
  • Use HTML line breaks in vis_drake_graph() hover text to display commands in the drake plan more elegantly.
  • Speed up predict_load_balancing() and remove its reliance on internals that will go away in 2019 via #561.
  • Remove support for the worker column of config$plan in predict_runtime() and predict_load_balancing(). This functionality will go away in 2019 via #561.
  • Change the names of the return value of predict_load_balancing() to time and workers.
  • Bring the documentation of predict_runtime() and predict_load_balancing() up to date.
  • Deprecate drake_session() and rename to drake_get_session_info().
  • Deprecate the timeout argument in the API of make() and drake_config(). A value of timeout can be still passed to these functions without error, but only the elapsed and cpu arguments impose actual timeouts now.
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