Makefile

# Makefile für die Anfihefte

# Fix für Ubuntu-User, bei denen anstatt Bash Dash verwendet wird:
SHELL := /usr/bin/env bash

# Diese Variablen sollten für die aktuelle Version stimmen, müssen aber ggf.
# angepasst werden (am besten über Shell-Variablen, z. B. "export YEAR=2017"
# und "unset YEAR" zum Zurücksetzen):
YEAR ?= $(shell date '+%Y')
# Das Semester ist um 2 Monate nach vorne verschoben, da wir die Briefe ja vor
# dem entsprechenden Semester aktualisieren wollen.
SEMESTER ?= $(shell if [[ $$(date +%m) > 02 && $$(date +%m) < 07 ]]; \
	    then echo sommersemestertrue; \
	    else echo wintersemestertrue; fi)

# Variablen für die Build-Ordner
BUILDDIR = out
# Configuration file generated by the Makefile (current year, edition, etc.):
CONFIG = makeconfig.tex

# set the base year for calculating the edition
BASEYEAR = 2018
BASEEDITION_INFO = 29 # SS 19: 31. Auflage
BASEEDITION_KOGNI = 3 # WS 18/19: 3. Auflage

# automatically set the build parameters like year, semester, edition and if the kogni or info build should be done
BASE_CONF = '\\jahr=$(YEAR) \\$(SEMESTER)'

# add the git commit short id and date of the revision these PDFs are built from
GIT_COMMIT_ID =  $(shell if [[ -f .BUILDINFO ]]; \
		 then echo $(shell grep SOURCE_COMMIT .BUILDINFO | awk -F '"' '{print $$2}' | cut -c1-7); \
		 else echo $(shell (git rev-parse --short HEAD)); fi)
GIT_COMMIT_DATE = $(shell if [[ -f .BUILDINFO ]]; \
		  then echo $(shell grep SOURCE_DATE .BUILDINFO | awk -F '"' '{print $$2}'); \
		  else echo $(shell (git log -1 --format=%cd --date=format:'%Y-%m-%d')); fi)
GIT_COMMIT = '\\newcommand{\\gitCommit}{$(GIT_COMMIT_ID) @ $(GIT_COMMIT_DATE)}'

INFO_AUFLAGE = $(shell if [ $(SEMESTER) = "sommersemestertrue" ]; \
	       then echo $$((($(YEAR)-$(BASEYEAR))*2 + $(BASEEDITION_INFO))); \
	       else echo $$((($(YEAR)-$(BASEYEAR))*2 + $(BASEEDITION_INFO) + 1)); fi)
INFO_CONF = '$(BASE_CONF) \auflage=$(INFO_AUFLAGE) \infotrue $(GIT_COMMIT)'

KOGNI_AUFLAGE = $(shell echo $$(($(YEAR)-$(BASEYEAR) + $(BASEEDITION_KOGNI))))
KOGNI_CONF  = '$(BASE_CONF) \auflage=$(KOGNI_AUFLAGE) $(GIT_COMMIT)'


# Aliases
.PHONY: default
default: all
.PHONY: all
all: info kogni
.PHONY: info
info: anfiheft-info.pdf
.PHONY: kogni
kogni: anfiheft-kogni.pdf

.PHONY: anfiheft-info.pdf # Let latexmk handle the dependencies
anfiheft-info.pdf: anfiheft.tex
	if [ ! -d $(BUILDDIR)-info ]; then mkdir $(BUILDDIR)-info; fi
	echo $(INFO_CONF) > $(CONFIG)
	latexmk -f -output-directory=$(BUILDDIR)-info -pdf -pdflatex="pdflatex" anfiheft.tex $<
	cp $(BUILDDIR)-info/anfiheft.pdf anfiheft-info.pdf
	mv $(CONFIG) info-$(CONFIG)

.PHONY: anfiheft-kogni.pdf # Let latexmk handle the dependencies
anfiheft-kogni.pdf: anfiheft.tex
	if [ ! -d $(BUILDDIR)-kogni ]; then mkdir $(BUILDDIR)-kogni; fi
	echo $(KOGNI_CONF) > $(CONFIG)
	latexmk -f -output-directory=$(BUILDDIR)-kogni -pdf -pdflatex="pdflatex" anfiheft.tex $<
	cp $(BUILDDIR)-kogni/anfiheft.pdf anfiheft-kogni.pdf
	mv $(CONFIG) kogni-$(CONFIG)

# DB-Dump der für das KKI geladen werden muss:
.PHONY: kki/dump.csv # Could always change since we fetch it from the web
kki/dump.csv:
	curl -o kki/dump.csv https://kki.fsi.uni-tuebingen.de/dump.php


.PHONY: check
check:
	# Note: This target requires the pdftk binary from pdftk(-java).
	set -eu; \
	FAILURE=0; \
	for file in anfiheft-info.pdf anfiheft-kogni.pdf; do \
	  PAGE_COUNT=$$(pdftk $$file dump_data | grep NumberOfPages | cut -d' ' -f2); \
	  REMAINDER=$$((PAGE_COUNT % 4)); \
	  if [[ $$REMAINDER -ne 0 ]]; then \
	    echo "Failure: The number of pages in the PDF file $$file" \
	      "is not divisible by 4 ($$PAGE_COUNT % 4 = $$REMAINDER)." 1>&2; \
	    FAILURE=1; \
	  fi \
	done; \
	if [[ $$FAILURE -eq 0 ]]; then \
	  echo "Success, all checks passed."; \
	else \
	  exit 1; \
	fi

.PHONY: clean
clean:
	if [ -d $(BUILDDIR)-info ]; then rm --recursive ./$(BUILDDIR)-info; fi
	if [ -d $(BUILDDIR)-kogni ]; then rm --recursive ./$(BUILDDIR)-kogni; fi
	rm -f info-$(CONFIG)
	rm -f kogni-$(CONFIG)

.PHONY: distclean
distclean: clean
	if [ -f anfiheft-info.pdf ]; then rm anfiheft-info.pdf; fi
	if [ -f anfiheft-kogni.pdf ]; then rm anfiheft-kogni.pdf; fi

.PHONY: help
help:
	@echo 'Building targets:'
	@echo '  all            - Build the info- and kogni-anfiheft (default)'
	@echo '  info           - Build only the info-anfiheft'
	@echo '  kogni          - Build only the kogni-anfiheft'
	@echo '  kki/dump.csv   - Update the DB dump from the KKI'
	@echo 'Auxiliary targets:'
	@echo '  help           - Show this help'
	@echo 'Cleaning targets:'
	@echo '  clean          - Remove both $(BUILDDIR)-Directories'
	@echo '  distclean      - Remove both $(BUILDDIR)-Directories and anfiheft-*.pdf (i.e. everything)'