if (!file.copy("./../include", "src/", overwrite = TRUE, recursive = TRUE)) { stop("Cannot find folder LightGBM/include") } if (!file.copy("./../src", "src/", overwrite = TRUE, recursive = TRUE)) { stop("Cannot find folder LightGBM/src") } if (!file.copy("./../compute", "src/", overwrite = TRUE, recursive = TRUE)) { print("Cannot find folder LightGBM/compute, will disable GPU build") } if (!file.copy("./../CMakeLists.txt", "src/", overwrite = TRUE, recursive = TRUE)) { stop("Cannot find file LightGBM/CMakeLists.txt") } if (!file.exists("src/_IS_FULL_PACKAGE")) { file.create("src/_IS_FULL_PACKAGE") } system("R CMD build --no-build-vignettes .")