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{fs} >= 1.2.4.sass() no longer encounters a false positive cache hit when sass_file() is used inside a sass_bundle(). (#107, #108)font_google() no longer produces a directory name with a _ prefix (which was causing the directory to be ignored when deployed to GitHub Pages). (#105, #106)sass() and as_sass_layer(), particularly when sass(write_attachments = TRUE) encounters a cache hit. (#98)sass_layer()’s argument order has changed to better accommodate for the addition of new functions and mixins arguments as well as deprecation of the declarations argument. This change reflects an update in our understanding of Sass best practice of placing function definitions before variables, so that variable definitions may leverage functions. (#80)
sass() and as_sass() now always attach htmlDependency()(s) (found inside of their input argument) as an attribute on their return value. This mainly in support the new font importing feature (which relies on sass()/as_sass() being able to return htmlDependency()s), but this could be more generally useful for attaching HTML dependencies to Sass/CSS code. (#74)
Added new font importing helpers, namely font_google(), font_link(), font_face(), and font_collection() for intelligently importing web fonts files. They must be used inside a named list, for example: list("font-variable" = font_google("Pacifico")). See help(font_face, package = "sass") for more details and examples. (#74)
A new sass_layer_file() function was added to read in a .scss file as a sass_layer(). Special comments of the form /*-- scss:(functions|defaults|rules|mixins) --*/ can be used to place certain sections of the file into functions, defaults, rules, and mixins. The primary motivation for this is to allow quarto’s theme file format to also be used Shiny and R Markdown. (#81)
Closed #87: Added new sass_options_get() and sass_options_set() for setting and reading sass_options() globally (sass()’s options argument now defaults to sass_options_get() instead of sass_options()). In addition, when shiny::devmode() is enabled, Sass source maps are included by default. (#88)
output_template() gains a path argument to change the root directory where output file will be written. (#76)
sass_file() being cached even if the contents of the file had changed (this regression was introduced by the 0.3.0 release). (#85)This small patch release changes sass::sass_cache_context_dir() to use tools::R_user_dir() over rappdirs::user_cache_dir() (when relevant, as requested by CRAN). (#70)
This release improves the caching of CSS compilation in sass(). Previously, caching was (by default) enabled in non-interactive() sessions and was allowed to grow indefinitely within tempdir() (i.e., within an R session). Now, caching is enabled by default in both interactive and non-interactive R sessions. In most cases, the cache will be stored in a user-level cache directory and persist across R sessions. In some cases (such as deployment on Shiny Server or Connect), the cache will be stored in a subdirectory of the application named cache/, to eliminate the risk of cache poisoning across applications. For more information about where the cache is stored, see ?sass_cache_get.
Although caching is now enabled by default, it still may not be desirable while developing Sass code, because of the possibility of a false positive. (For more, see the Caching section of ?sass) Caching can be disabled with options(sass.cache = FALSE). Also, to help reduce the chance of a false positive in caching, sass() now includes a cache_key_extra parameter which may be used to pass information that the Sass input may not capture, such as file imports.
Other improvements include:
Added support for Shiny Developer Mode by turning off sass caching by default. To enable Shiny Developer Mode, call options(shiny.devmode = TRUE) (or shiny::devmode(TRUE)). (Related rstudio/shiny#3174, #68)
A new output_template() function for more convenient output path creation that is cache and options aware.
When sass() has a cache hit, and output is specified, the cached file is now simply copied to output at the OS level (previously, sass() was reading the cache file into R, then writing it to output). (#42)
Added sass_bundle() to collect sass_layer()(s) and/or sass_bundle()(s) into a single Sass bundle. When creating a bundle, any of the child layers/bundles may be named, so they can be later removed via sass_bundle_remove(). (#54)
sass_layer() now returns a sass_bundle() containing a single Sass layer. To test for sass_bundle() output, use is_sass_bundle(). (#54)
When output is specified, sass() now returns the output file path instead of the CSS content as a character vector.
The cache_options argument in sass() has been renamed to cache and now defaults to sass_cache_get() instead of sass_cache_options().
sass_cache_options() has been deprecated (it no longer does anything) in favor of the new caching functions (sass_file_cache()).
Deprecated sass_layer_merge() in favor of sass_bundle() to reflect the data structures being returned. (#54)
Deprecated the tags parameter of sass_layer() in favor of named layers in sass_bundle(NAME = layer). (#54)
Added new sass_layer() and sass_layer_merge() functions. See here for more details.
The objects that sass() and as_sass()) return now have better print methods in rmarkdown. See here for more details.
Added the ability for sass() to retain htmltools::htmlDependency()s attached to it’s input.
Fixed an issue with incorrect handling of length 2 or more character vector input (#37).
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