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Diffstat (limited to 'makext.mk')
| -rw-r--r-- | makext.mk | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/makext.mk b/makext.mk new file mode 100644 index 0000000..bbfa148 --- /dev/null +++ b/makext.mk @@ -0,0 +1,46 @@ +# Makext is a collection of useful extensions for Makefiles, aimed at +# simplifying and enhancing the functionality of Make-based projects. These +# extensions provide additional features and convenience functions to +# improve the build process, manage dependencies, and streamline common +# tasks. +# +# Visit the GitHub repository at https://github.com/mitjafelicijan/makext +# to learn more and contribute to the project. +# +# `makext` was written by Mitja Felicijan and is released under the BSD +# two-clause license, see the LICENSE file for more information. + +# Load environmental files from `MEX_ENVIRONMENT`. By default GNU make +# loads what is already in `env`. This extends it to other files. +ifdef MEX_ENVIRONMENT +TEMP_ENV_FILES=$(shell echo $(MEX_ENVIRONMENT) | tr ',' ' ') +$(foreach file,$(TEMP_ENV_FILES),$(eval include $(file))) +endif + +# Help extension that lists all the targets with descriptions +# and adds description and license information if data provided. +.PHONY: .help +.help: +ifdef MEX_DESCRIPTION + @printf "%s\n\n" $(MEX_DESCRIPTION) | fmt +endif + @echo "Targets:" + @grep -vE '^[[:space:]]' $(MAKEFILE_LIST) | grep -E '^.*:.* #' | sed -E 's/(.*):(.*):.*#(.*)/ \2###\3/' | column -t -s '###' +ifdef MEX_LICENSE + @printf "\n%s" $(MEX_LICENSE) | fmt +endif + +# Checks `MEX_ASSURE` variable if all the programs declared actually +# exist on a machine. If not this exists make with error. +.PHONY: .assure +.assure: +ifndef MEX_ASSURE + @printf "Variable MEX_ASSURE is not defined. Can not check for programs.\n" +else + @for prog in $(shell echo $(MEX_ASSURE)); do \ + if ! which $$prog > /dev/null; then \ + echo "Error: '$$prog' not found on this machine."; \ + exit 1; \ + fi; \ + done +endif |