# version 0.2.2 2018-08-01

## Dependency changes

• Add future to Suggests.

## New features

• new option on non-Windows OSs to use future for Cache saving to SQLite database, via options("reproducible.futurePlan"), if the future package is installed. This is FALSE by default.
• If a do.call function is Cached, previously, it would be labelled in the database as do.call. Now it attempts to extract the actual function being called by the do.call. Messaging is similarly changed.
• new option reproducible.ask, logical, indicating whether clearCache should ask for deletions when in an interactive session
• prepInputs, preProcess and downloadFile now have dlFun, to pass a custom function for downloading (e.g., “raster::getData”)
• prepInputs will automatically use readRDS if the file is a .rds.
• prepInputs will return a list if fun = "base::load", with a message; can still pass an envir to obtain standard behaviour of base::load.
• clearCache - new argument ask.
• new function assessDataType, used in postProcess, to identify smallest datatype for Raster* objects, if user does not pass an explicity datatype in prepInputs or postProcess (#39, @CeresBarros).

## Bug fixes

• fix problems with tests introduced by recent git2r update (@stewid, #36).
• .prepareRasterBackedFile – now will postpend an incremented numeric to a cached copy of a file-backed Raster object, if it already exists. This mirrors the behaviour of the .rda file. Previously, if two Cache events returned the same file name backing a Raster object, even if the content was different, it would allow the same file name. If either cached object was deleted, therefore, it would cause the other one to break as its file-backing would be missing.
• options were wrongly pointing to spades.XXX and should have been reproducible.XXX.
• copyFile did not perform correctly under all cases; now better handling of these cases, often sending to file.copy (slower, but more reliable)
• extractFromArchive needed a new Checksum function call under some circumstances
• several other minor bug fixes.
• extractFromArchive – when dealing with nested zips, not all args were passed in recursively (#37, @CeresBarros)
• prepInputs – arguments that were same as Cache were not being correctly passed internally to Cache, and if wrapped in Cache, it was not passed into prepInputs. Fixed.
• .prepareFileBackedRaster was failing in some cases (specifically if it was inside a do.call) (#40, @CeresBarros).
• Cache was failing under some cases of Cache(do.call, ...). Fixed.
• Cache – when arguments to Cache were the same as the arguments in FUN, Cache would “take” them. Now, they are correctly passed to the FUN.
• preProcess – writing to checksums may have produced a warning if CHECKSUMS.txt was not present. Now it does not.
• numerous other minor bugfixes

## Minor changes

• most tests now use a standardized approach to attaching libraries, creating objects, paths, enabling easier, error resistent test building

# version 0.2.1 2018-07-07

## New features

• new functions:

• convertPaths and convertRasterPaths to assist with renaming moved files.
• prepInputs – new features

• alsoExtract now has more options (NULL, NA, "similar") and defaults to extracting all files in an archive (NULL).
• skips postProcess altogether if no studyArea or rasterToMatch. Previously, this would invoke Cache even if there was nothing to postProcess.

## Bug fixes

• copyFile correctly handles directory names containing spaces.
• makeMemoisable fixed to handle additonal edge cases.
• other minor bug fixes.

# version 0.2.0 2018-06-17

## New features

• new functions:

• prepInputs to aid in data downloading and preparation problems, solved in a reproducible, Cache-aware way.
• postProcess which is a wrapper for sequences of several other new functions (cropInputs, fixErrors, projectInputs, maskInputs, writeOutputs, and determineFilename)
• downloadFile can handle Google Drive and ftp/http(s) files
• zipCache and mergeCache
• compareNA does comparisons with NA as a possible value e.g., compareNA(c(1,NA), c(2, NA)) returns FALSE, TRUE
• Cache – new features:

• new arguments showSimilar, verbose which can help with debugging
• new argument useCache which allows turning caching on and off at a high level (e.g., options(“useCache”))
• new argument cacheId which allows user to hard code a result from a Cache
• deprecated arguments: digestPathContent –> quick, compareRasterFileLength –> length
• Cache arguments now propagate inward to nested Cache function calls, unless explicitly set on the inner functions
• more precise messages provided upon each use
• many more userTags added automatically to cache entries so much more powerful searching via showCache(userTags="something")
• checksums now returns a data.table with the same columns whether write = TRUE or write = FALSE.
• clearCache and showCache now give messages and require user intervention if request to clearCache would be large quantities of data deleted
• memoise::memoise now used on 3rd run through an identical Cache call, dramatically speeding up in most cases
• new options: reproducible.cachePath, reproducible.quick, reproducible.useMemoise, reproducible.useCache, reproducible.useragent, reproducible.verbose
• asPath has a new argument indicating how deep should the path be considered when included in caching (only relevant when quick = TRUE)
• New vignette on using Cache
• Cache is parallel-safe, meaning there are tryCatch around every attempt at writing to SQLite database so it can be used safely on multi-threaded machines
• bug fixes, unit tests, more imports for packages e.g., stats
• updates for R 3.6.0 compact storage of sequence vectors
• experimental pipes (%>%, %C%) and assign %<%
• several performance enhancements

# version 0.1.4 2018-01-25

• mergeCache: a new function to merge two different Cache repositories
• memoise::memoise is now used on loadFromLocalRepo, meaning that the 3rd time Cache() is run on the same arguments (and the 2nd time in a session), the returned Cache will be from a RAM object via memoise. To stop this behaviour and use only disk-based Caching, set options(reproducible.useMemoise = FALSE) .
• Cache assign – %<% can be used instead of normal assign, equivalent to lhs <- Cache(rhs).
• new option: reproducible.verbose, set to FALSE by default, but if set to true may help understand caching behaviour, especially for complex highly nested code.
• all options now described in ?reproducible.
• All Cache arguments other than FUN and … will now propagate to internal, nested Cache calls, if they are not specified explicitly in each of the inner Cache calls.
• Cached pipe operator %C% – use to begin a pipe sequence, e.g., Cache() %C% ...
• Cache arg sideEffect can now be a path
• Cache arg digestPathContent default changed from FALSE (was for speed) to TRUE (for content accuracy)
• New function, searchFull, which shows the full search path, known alternatively as “scope”, or “binding environments”. It is where R will search for a function when requested by a user.
• Uses memoise::memoise for several functions (loadFromLocalRepo, pkgDep, package_dependencies, available.packages) for speed – will impact memory at the expense of speed.
• New Require function

• attempts to create a lighter weight package reproducibility chain. This function is usable in a reproducible workflow: it includes both installing and loading of packages, it can maintain version numbers, and uses smart caching for speed. In tests, it can evaluate whether 20 packages and their dependencies (~130 packages) are installed and loaded quickly (i.e., if all TRUE, ~0.1 seconds). This is much slower than running require on those 20 packages, but require does not check for dependencies and deal with them if missing: it just errors. This speed should be fast enough for many purposes.
• can accept uncommented name, if length 1.
• remove dplyr from Imports
• Add RCurl to Imports
• change name of digestRaster to .digestRaster

# version 0.1.3 2017-08-10

• fix R CMD check errors on Solaris that were not previously resolved

# version 0.1.2 2017-08-09

• fix R CMD check errors on Solaris
• fix bug in digestRaster affecting in-memory rasters
• move rgdal to Suggests

# version 0.1.1 2017-08-05

• cleanup examples and do run them (per CRAN)
• add tests to ensure all exported (non-dot) functions have examples

# version 0.1.0 Unreleased

• A new package, which takes all caching utilities out of the SpaDES package.