pkgbuild 1.4.0

pkgbuild can now avoid copying large package directories when building a source package. See the PKG_BUILD_COPY_METHOD enviroment variable in ?build or the package README (#59).

This is currently an experimental feature, and feedback is appreciated.
R CMD build warnings can now be turned into errors, by setting the pkg.build_stop_for_warnings option to TRUE or by setting the PKG_BUILD_STOP_FOR_WARNINGS environment variable to true (#114).
need_compile() now knows about Rust source code files, i.e. Cargo.toml and *.rs (#115).
Now pkgbuild::build() will not clean up inst/doc by default if the Config/build/clean-inst-doc entry in DESCRIPTION is set to FALSE (#128).
New PKG_BUILD_COLOR_DIAGNOSTICS environment variable to opt out from colored compiler output (#141).
pkgbuild now works with a full XCode installation if the XCode Command Line Tools are not installed, on macOS, in RStudio (#103).

pkgbuild 1.3.1

Accept Rtools40 for R 4.2, it works well, as long as the PATH includes both ${RTOOLS40_HOME}/usr/bin and ${RTOOLS40_HOME}/ucrt64/bin. E.g. ~/.Renviron should contain now
```
PATH="${RTOOLS40_HOME}\usr\bin;${RTOOLS40_HOME}\ucrt64\bin;${PATH}"
```
to make Rtools40 work with both R 4.2.x (devel currently) and R 4.1.x and R 4.0.x.

pkgbuild now supports Rtools 4.2.
pkgbuild now returns the correct path for R 3.x (#96).
build() now always returns the path of the built package (#108).
pkgbuild output now looks better in .Rmd documents and in general in non-dynamic terminals. You can also force dynamic and non-dynamic output now (#64).
pkgbuild does not build the PDF manual now if pdflatex is not installed, even if manual = TRUE (#123).

Gábor Csárdi is now the maintainer.
build_setup_source now considerers both command-line build arguments, as well as parameters vignettes or manual when conditionally executing flag-dependent behaviors (@dgkf, #120)

pkgbuild is now licensed as MIT (#106)
compile_dll() gains a debug argument for more control over the compile options used (@richfitz, #100)
pkgbuild_process() and build() now use colored compiler diagnostics if supported (#102)
Avoid documentation link ambiguity in R 4.1 (#105)

compile_dll() now supports automatic cpp11 registration if the package links to cpp11.
rtools_needed returns correct version instead of “custom” (@burgerga, #97)

Support for RTools 40 and custom msys2 toolchains that are explicitly set using the CC Makevars (#40).

check_build_tools() gains a quiet argument, to control when the message is displayed. The message is no longer displayed when check_build_tools() is called internally by pkgbuild functions. (#83)

build() gains a clean_doc argument, to control if the inst/doc directory is cleaned before building. (#79, #75)
build() and pkgbuild_process now have standard output and error are correctly interleaved, by redirecting the standard error of build process to the standard output (@gaborcsardi, #78).
check_build_tools() now has a more helpful error message which points you towards ways to debug the issue (#68).
pkgbuild_process now do not set custom compiler flags, and it uses the user’s Makevars file (@gaborcsardi, #76).
rtools_path() now returns NA on non-windows systems and also works when has_rtools() has not been run previously (#74).

build() and compile_dll() gain a register_routines argument, to automatically register C routines with tools::package_native_routines_registration_skeleton() (#50)
build() will now warn if trying to build packages on R versions <= 3.4.2 on Windows with a space in the R installation directory (#49)
build() will now message if a build contains long paths, which are unsupported on windows (#48)
compile_dll() no longer doubles output, a regression caused by the styling callback. (https://github.com/r-lib/devtools/issues/1877)
build() output is now styled like that in the rcmdcheck package (https://github.com/r-lib/devtools/issues/1874).
build() no longer sets compile flags (#46)

Preliminary support for rtools 4.0 (#40)
compile_dll() now does not supply compiler flags if there is an existing user defined Makevars file.
local_build_tools() function added to provide a deferred equivalent to with_build_tools(). So you can add rtools to the PATH until the end of a function body.

Add metadata to support Rtools 3.5 (#38).
build() only uses the --no-resave-data argument in R CMD build if the --resave-data argument wasn’t supplied by the user (@theGreatWhiteShark, #26)
build() now cleans existing vignette files in inst/doc if they exist. (#10)
clean_dll() also deletes symbols.rds which is created when compile_dll() is run inside of R CMD check.
First argument of all functions is now path rather than pkg.