Version 1.1.0

Changes in default values

• The default value for "list_prods" argument in sen2r() is NULL instead of 'BOA'.
• Remove 'no' value for argument "step_atmcorr" in sen2r() (use 'l2a' without selecting any L2A products instead).
• Default values for "smoothing" and "buffer" arguments in s2_mask() are now 0 (like in sen2r()) instead than 10/20 m.
• Set parallel = FALSE as default in sen2r() (parallelisation must be explicitly required).
• Since old name products were repackaged by ESA, these products are no longer supported.
• In the case the users manually defines the path to be used as temporary directory and this directory already exists, a casual subdirectory of the user-defined folder is used (this to prevent to accidentally delete existing files).

Major changes

• sen2r package directory is no more used to store files, but a subfolder .sen2r of the user Home directory is created and used.
  In this way, reinstalling sen2r will not require anymore to reinstall runtime dependencies / to reconfigure the package.
  The permission to write on this folder is asked to the user when the package is loaded for the first time.
• s2_list() and s2_download() now use internal methods instead of calling python function derived from s2download scripts by Hagolle (this substantially improve the speed of SAFE search), which were removed.
• sen2r is now supported also on MacOS.

New/removed dependencies

• Remove sp and rgdal from explicit dependencies.
• Remove stringr and gdalUtils dependencies.
• Add stars dependency.

New functions

• str_pad2(), equivalent to str_pad() without the needing to load "stringr".
• raster_metadata(), to get raster metadata, without rgdal dependency.
• check_scihub_login() to check if SciHub credentials are right.
• check_scihub_connection() to check for internet connectivity.
• build_example_param_file() (not exported) to build an example parameter file.

Other changes

• Packages stability was improved by adding test functions, working with testthat.
• S2 tiles are not provided as kmz within the package, but a rds file is downloaded after installing the package (in this way, package installation is lighter, and S2 tiles are read faster).
• Function check_gdal() was rewritten without using gdalUtils, in order to be simpler and faster.
• Some new indices were added:
  • NDWI-NDWI2 (#184);
  • CRred-BDred-CRred2 (#168);
  • Indices from Sentinel-hub indices were checked.
• The minimum convex hull of the extent is used instead of the bbox to search SAFE images.
• Several "soft" error/warning messages were introduced.
• ENVI headers now includes some information about band names (TOA/BOA) and SCL classes.
• Coupling SAFE: in offline mode, if some L2A products exists but not the corresponding L1C, and TOA-derived products are required, only the "coupled" SAFE archives are used.
• Small base example files were added to the package for testing purposes.
• Sen2Cor version which the user wants to install can be chosen in the GUI.
• Documentation was updated and improved, in particular adding function examples.
• Unused old code was removed.
• Several bugs were fixed.