targets 0.2.0

Bug fixes

• In tar_load(), subset metadata to avoid accidental attempts to load global objects in tidyselect calls.
• Do not register a pattern as running unless an actual branch is about to start (#304).
• Use a name spec in vctrs::vec_c() (#320, @joelnitta).

New features

• Add a new names argument to tar_objects() and tar_workspaces() with tidyselect functionality.
• Record info on the main process (PID, R version, targets version) in _targets/meta/process and write new functions tar_process() and tar_pid() to retrieve the data (#291, #292).
• Add a new targets_only argument to tar_meta().
• Add new functions tar_helper() and tar_helper_raw() to write general-purpose R scripts, using tidy evaluation for as a template mechanism (#290, #291, #292, #306).
• Export functions to check the existence of various pieces of local storage: tar_exist_meta(), tar_exist_objects(), tar_exist_progress(), tar_exist_progress(), tar_exist_script() (#310).
• Add a new supervise argument to tar_watch().
• Add a new complete_only argument to tar_meta() to optionally return only complete rows (no NA values).
• Catch callr errors and refer users to the debugging chapter of the manual.

Enhancements

• Improve error messages of invalid arguments (#298, @brunocarlin). Removes partial argument matching in most cases.
• By default, locally enable crayon if an only if the calling process is interactive (#302, @ginolhac). Can still be disabled with options(crayon.enabled = FALSE) in _targets.R.
• Improve error handling and message for format = "url" when the HTTP response status code is not 200 (#303, @petrbouchal).
• Add more extras packages to tar_renv() (to support tar_watch()).
• Show informative message instead of error in tar_watch() if _targets.R does not exist.
• Clear up the documentation of the names argument of tar_load() (#314, @jameelalsalam).
• Do not override nobody in custom curl handles (#315, @riazarbi).
• Rename “running” to “started” in the progress metadata. This avoids the implicit claim that targets is somehow actively monitoring each job, e.g. through a connection or heartbeat (#318).
• Set errormode = "warn" in getVDigest() for files to work around https://github.com/eddelbuettel/digest/issues/49 for network drives on Windows. targets already runs those file checks anyway. (#316, @boshek).
• If a package fails to load, print the library paths targets tried to load from.

targets 0.1.0

Bug fixes

• tar_test() now skips all tests on Solaris in order to fix the problems shown on the CRAN check page.
• Enable allow and exclude to work on imports in tar_visnetwork() and tar_glimpse().
• Put visNetwork legends on right to avoid crowding the graph.

Performance

• Call force() on subpipeline objects to eliminate high-memory promises in target objects. Allows targets to be deployed to workers much faster when retreival is "main" (#279).

New features

• Add a new box to the tar_watch() app to tabulate progress on dynamic branches (#273, @mattwarkentin).
• Store type, parent, and branches in progress data for tar_watch() (#273, @mattwarkentin).
• Add a fields argument in tar_progress() and default to "progress" for back compatibility (#273, @mattwarkentin).
• Add a new tar_progress_branches() function to tabulate branch progress (#273, @mattwarkentin).
• Add new “refresh” switch to tar_watch() to toggle automatic refreshing and force a refresh.

Enhancements

• Exclude .Random.seed by default in tar_visnetwork().
• Spelling: “cancelled” changed to “canceled”.
• Enhance controls and use of space in the tar_watch() app.
• Centralize internal path management utilities.

Configuration

• Skip clustermq tests on Solaris.

targets 0.0.2

CRAN response

• Avoid starting the description with the package name.
• Remove if(FALSE) blocks from help files to fix “unexecutable code” warnings (tar_glimpse(), tar_visnetwork(), and tar_watch()).
• Remove commented code in the examples (tar_edit(), tar_watch_ui(), and tar_watch_server()).
• Ensure that all examples, tests, and vignettes do not write to the user’s home file space. (Fixed an example of tar_workspace().)

Enhancements

• Use JOSS paper in CITATION.

targets 0.0.1

Enhancements

• Accept lists of target objects at the end of _targets.R (#253).
• Deprecate tar_pipeline() and tar_bind() because of the above (#253).
• Always show a special message when the pipeline finishes (#258, @petrbouchal).
• Disable visNetwork stabilization (#264, @mattwarkentin).
• Use default visNetwork font size.
• Relay errors as condition messages if error is "continue" (#267, @liutiming).

targets 0.0.0.9003

Bug fixes

• Ensure pattern-only pipelines can be defined so they can be combined again later with tar_bind() (#245, @yonicd).
• Implement safeguards around igraph topological sort.

Enhancements

• Topologically sort the rows of tar_manifest() (#263, @sctyner).

Breaking changes

• Make patterns composable (#212, @glep, @djbirke).
• Allow workspaces to load unexportable objects (#214).
• Make workspace files super light by saving only a reference to the required dependencies (#214).
• Add a new workspaces argument to tar_option_set() to specify which targets will save their workspace files during tar_make() (#214).
• Change error = "save" to error = "workspace" to so it is clearer that saving workspaces no longer duplicates data (#214).
• Rename what to destroy in tar_destroy().
• Remove tar_undebug() because is redundant with tar_destroy(destroy = "workspaces").

New features

• Make patterns composable (#212).
• Add new dynamic branching patterns head(), tail(), and sample() to provide functionality equivalent to drake’s max_expand (#56).
• Add a new tar_pattern() function to emulate dynamic branching outside a pipeline.
• Add a new level_separation argument to tar_visnetwork() and tar_glimpse() to control the aspect ratio (#226).
• Track functions from multiple packages with the imports argument to tar_option_set() (#239).
• Add color for “built” progress if outdated is FALSE in tar_visnetwork().
• Tweak colors in tar_visnetwork() to try to account for color blindness.

Enhancements

• Return full patterns from tar_manifest().
• Record package load errors in progress and metadata (#228, @psychelzh).
• tar_renv() now invokes _targets.R through a background process just like tar_outdated() etc. so it can account for more hidden packages (#224, @mattwarkentin).
• Set deployment equal to "main" for all targets in tar_make(). This ensures tar_make() does not waste time waiting for nonexistent files to ship over a nonexistent network file system (NFS). tar_make_clustermq() or tar_make_future() could use NFS, so they still leave deployment alone.

targets 0.0.0.9002

Breaking changes

• Add a new size field to the metadata to allow targets to make better judgments about when to rehash files (#180). We now compare hashes to check file size differences instead of doing messy floating point comparisons with ad hoc tolerances. It breaks back compatibility with old projects, but the error message is informative, and this is all still before the first official release.
• Change “local” to “main” and “remote” to “worker” in the storage, retrieval, and deployment settings (#183, @mattwarkentin).
• Ensure function dependencies are sorted before computing the function hash (GitHub commit f15face7d72c15c2d1098da959492bdbfcddb425).
• Move garbage_collection to a target-level setting, i.e. argument to tar_target() and tar_option_set() (#194). Previously was an argument to the tar_make*() functions.
• Allow tar_name() and tar_path() to run outside the pipeline with debugging-friendly default return values.

Bug fixes

• Stop sending target return values over the network when storage is "remote" (#182, @mattwarkentin).
• Shorten lengths of warnings and error messages to 128 characters (#186, @gorkang).
• Restrict in-memory metadata to avoid incorrectly recycling deleted targets (#191).
• Serialize unexportable dependencies before sending them to workers. Transport data through target$subpipeline rather than target$cache to make that happen (#209, @mattwarkentin).

New features

• Add a new function tar_bind() to combine pipeline objects.
• Add tar_seed() to get the random number generator seed of the target currently running.

Enhancements

• Allow target-specific future::plan()s through the resources argument of tar_target() (#198, @mattwarkentin).
• Use library() instead of require() in command_load_packages().
• Evaluate commands directly in targets$cache$targets$envir to improve convenience in interactive debugging (ls() just works now.) This is reasonably safe now that the cache is populated at the last minute and cleared as soon as possible (#209, #210).

targets 0.0.0.9000

• First version.