el-files   = $(shell sh -c "ls -1 *.el")
elc-files  = $(el-files:.el=.elc)

opts       = -Q -D -L "."
opts-cmpl  = $(opts) -batch
opts-run   = $(opts) -l bad

sed-filter   = sed '/^\(Loading\|Wrote\|older\)/d'
filter       = 2>&1 | $(sed-filter)
filter-quiet = > /dev/null $(filter)

all: $(elc-files)

%.elc: %.el
	echo "[ELC ELN] $<"
	emacs $(opts-cmpl) -f batch-byte-compile   $< $(filter-quiet)
	emacs $(opts-cmpl) -f batch-byte-compile   $< $(filter)
	emacs $(opts-cmpl) -f batch-native-compile $< $(filter)

meta:
	$(shell sh -c "grep -i todo *.el")

space: $(elc-files)
	emacs $(opts-run) -f bad-space  $(filter-quiet)

studio: $(elc-files)
	emacs $(opts-run) -f bad-studio $(filter-quiet)

snake: $(elc-files)
	emacs $(opts-run) -f bad-snake  $(filter-quiet)

clean:
	$(shell sh -c "rm -rf *.elc")

again:
	${MAKE} clean
	${MAKE} all