Makefile

# Competitive-programming task runner. See `make help`.

.DEFAULT_GOAL := help
.PHONY: help compile run clean contest list store add remove problems

PLATFORM ?= codeforces
CONTEST ?=
PROBLEMS ?=
PROBLEM ?=

# Also accept `make contest 2112` in addition to `make contest CONTEST=2112`.
contest_goal := $(word 2,$(MAKECMDGOALS))
ifeq ($(filter contest,$(MAKECMDGOALS)),contest)
ifeq ($(strip $(CONTEST)),)
CONTEST := $(contest_goal)
endif
ifneq ($(contest_goal),)
.PHONY: $(contest_goal)
$(contest_goal):
	@:
endif
endif

help:
	@printf '%s\n' \
	  'Competitive programming workspace' \
	  '' \
	  'Usage:' \
	  '  make contest new  # interactively create a contest' \
	  '  make contest 2112' \
	  '  make compile PROBLEM=contests/codeforces/2112/A' \
	  '  make run     # choose root or a contest problem' \
	  '  make add     # add a problem while in contest mode' \
	  '  make remove  # remove a problem while in contest mode' \
	  '  make store   # save the root Main.java as a named reference' \
	  '' \
	  'Targets:' \
	  '  help        Show this help.' \
	  '  contest     Create a contest with `new`, or enter an existing contest.' \
	  '  compile     Compile Main.java in PROBLEM to .build/.' \
	  '  run         Interactively compile and run; write output.txt.' \
	  '  add         Create a contest problem from boilerplate (contest mode only).' \
	  '  remove      Remove a contest problem after confirmation (contest mode only).' \
	  '  problems    List problem folders in the active contest (contest mode only).' \
	  '  store       Save the root Main.java under store/<PascalCaseName>.java.' \
	  '  list        List created problem directories.' \
	  '  clean       Remove builds and reset the root Main.java to boilerplate.' \
	  '' \
	  'Variables:' \
	  '  PLATFORM    Contest platform (default: codeforces).' \
	  '  CONTEST     Contest slug, such as 2112 (for contest mode or creation).' \
	  '  PROBLEMS    Comma-separated labels, such as A,B,C.' \
	  '  PROBLEM     Path to one problem directory.'

contest:
	@if [ "$(CONTEST)" = "new" ]; then \
		./scripts/new-contest.sh --platform "$(PLATFORM)"; \
	else \
		test -n "$(CONTEST)" || { echo 'Choose a contest, e.g. make contest 2112, or create one with make contest new'; exit 2; }; \
		./scripts/contest-mode.sh --platform "$(PLATFORM)" --contest "$(CONTEST)"; \
	fi

compile:
	@test -n "$(PROBLEM)" || { echo 'Set PROBLEM, e.g. make compile PROBLEM=contests/codeforces/2112/A'; exit 2; }
	@test -f "$(PROBLEM)/Main.java" || { echo "Missing $(PROBLEM)/Main.java"; exit 2; }
	@mkdir -p "$(PROBLEM)/.build"
	@javac -encoding UTF-8 -d "$(PROBLEM)/.build" "$(PROBLEM)/Main.java"
	@echo "Compiled $(PROBLEM)/Main.java"

run:
	@./scripts/run-problem.sh $(if $(PROBLEM),--problem "$(PROBLEM)",) $(if $(CP_CONTEST_DIR),--contest-dir "$(CP_CONTEST_DIR)",)

store:
	@./scripts/store-solution.sh

add:
	@./scripts/manage-problem.sh add $(if $(CP_CONTEST_DIR),--contest-dir "$(CP_CONTEST_DIR)",) $(if $(PROBLEM),--problem "$(PROBLEM)",)

remove:
	@./scripts/manage-problem.sh remove $(if $(CP_CONTEST_DIR),--contest-dir "$(CP_CONTEST_DIR)",) $(if $(PROBLEM),--problem "$(PROBLEM)",) $(if $(FORCE),--force,)

problems:
	@./scripts/manage-problem.sh list $(if $(CP_CONTEST_DIR),--contest-dir "$(CP_CONTEST_DIR)",)

list:
	@if [ -d contests ]; then find contests -type f -name Main.java -print | sed 's|/Main.java$$||' | sort; else echo 'No contests created yet.'; fi

clean:
	@find contests -type d -name .build -prune -exec rm -rf {} + 2>/dev/null || true
	@rm -rf .build
	@cp templates/java/boilerplate/Main.java Main.java
	@echo 'Removed generated builds and reset Main.java from the boilerplate.'