# ------------ makefile and environment variables

ifneq ($(PROJECTS),)
  export PGIT_CLONE_PROJECTS = $(PROJECTS)
endif

ifneq ($(wildcard projects.txt),)
  PROJECTS = $(shell cat projects.txt | sed '/^ *\#/ d')
  # TODO: this could be nicer
  CVS_PROJECTS = $(PROJECTS)
else
  PROJECTS ?= $(shell ls -d */CVS */.git 2>/dev/null | sed 's%/[^/]*%%')
  CVS_PROJECTS = $(filter $(dir $(wildcard */CVS)),$(PROJECTS))
endif

EXCLUDE_FROM_BUILD += \
	dspider-btools \
	dspider-shared \
	feedfs-dspcd \
	casview \
	dspfs \
	jux3

BUILD_PROJECTS = $(filter-out $(EXCLUDE_FROM_BUILD),$(PROJECTS))

ifeq ($(JANWARE_USER),)
  export JANWARE_USER = $(shell id -un)
endif

export CVSROOT = :ext:$(JANWARE_USER)@cvs.jannet.de:/home/jannet/arc/cvs

ifeq ($(CVS_RSH),)
  export CVS_RSH = ssh
endif

ifneq ($(CLONE_FROM_USER),)
  export PGIT_CLONE_FROM_USER = $(CLONE_FROM_USER)
else
  export PGIT_CLONE_FROM_USER = $(JANWARE_USER)
endif

ifneq ($(EXCLUDE_FROM_BUILD),)
BUILD_PY_EXTRA_ARGS += --exclude "$(EXCLUDE_FROM_BUILD)"
endif

# ------------ commands

MOD_SCRIPT_DIR = ./jw-build/scripts
PGIT           = CLONE_PROJECTS="$(PROJECTS)" /bin/bash $(firstword $(wildcard $(MOD_SCRIPT_DIR)/pgit.sh /opt/jw-build/bin/pgit.sh) pgit.sh-not-found)
BUILD_PY       = python $(MOD_SCRIPT_DIR)/build.py -b $(shell pwd) $(BUILD_PY_EXTRA_ARGS)
PURGE_SH       = /bin/bash $(firstword $(wildcard $(MOD_SCRIPT_DIR)/purge-stale-projects.sh /opt/jw-build/bin/purge-stale-projects.sh) purge-not-found)
RELEASE_SH     = /bin/bash $(firstword $(wildcard $(MOD_SCRIPT_DIR)/build-release.sh /opt/jw-build/bin/build-release.sh) release-not-found)
BROWSER       ?= firefox

# ------------ targets
  
all: pull.done

all clean: pull.done
	$(BUILD_PY) $@ $(BUILD_PROJECTS)

build-order: pull.done
	$(BUILD_PY) order $(BUILD_PROJECTS) | sed 's/  */\n/g'

clean: done.clean

clean-dirs:
	ls */dirs-all.done 2>/dev/null | sed 's%/.*%%' | xargs -r $(BUILD_PY) clean

echo-prereq-build:
	@make pull.done >/dev/null 2>&1
	@python $(MOD_SCRIPT_DIR)/projects.py $(PROJECTS_PY_EXTRA_ARGS) required-pkg $(BUILD_PROJECTS)

echo-prereq-release:
	@make pull.done >/dev/null 2>&1
	@python $(MOD_SCRIPT_DIR)/projects.py $(PROJECTS_PY_EXTRA_ARGS) required-pkg --flavour release $(BUILD_PROJECTS)

doc-project doc-module:
	$(BROWSER) https://janware.com/wiki/pub/sw:build:

pkg-%: pull.done
	$(BUILD_PY) $@ $(BUILD_PROJECTS)

status:
	for p in $(CVS_PROJECTS); do test -f $$d/CVS || echo $$p; done 
	cvs status $(addsuffix VERSION,$(CVS_PROJECTS))
	$(PGIT) status

purge:
ifneq ($(wildcard CVS),)
	$(PURGE_SH)
endif

update pull: purge cvs-update git-clone git-pull
	touch pull.done

pull-all: purge cvs-update git-clone git-pull-all
	touch pull.done

diff-all diff:
	cvs diff -u; $(PGIT) diff

rebuild: clean pull subdirs-all

release:
	$(RELEASE_SH)

subdirs-%:
	FORCE_REBUILD_SUBDIRS=true make $*

cvs-update:
	rm -f $@.done
	make $@.done

cvs-diff:
	cvs diff -u

git-push push:
	$(PGIT) push

git-push-all:
	$(PGIT) push --all

git-diff:
	$(PGIT) diff

git-short-diff:
	$(PGIT) diff --shortstat

git-pull:
	$(PGIT) pull

git-pull-all:
	$(PGIT) pull --all

git-clone:
	$(PGIT) clone
	touch clone.done

git-clone-%:
	PGIT_CLONE_FROM_USER=$* $(PGIT) clone

pull-%:
	PGIT_CLONE_FROM_USER=$* $(PGIT) clone

git-commit:
	$(PGIT) commit

git-conv-%:
	[ -e $*/.git ] || { \
		mv $* old/ ;\
		if PROJECTS="$*" make clone; then \
			sed -i "/^D\/$*\// d" CVS/Entries ;\
		else \
			mv old/$* . ;\
		fi \
	}

check-conv:
	for p in `ssh $(JANWARE_USER)@git.jannet.de /opt/jw-build/bin/git-srv-admin.sh -u jan -j list-personal-projects`; do \
		make git-conv-$$p ;\
	done

projects.txt:
	echo $(PROJECTS) | sed 's/ /\n/g; s%/%%g' > $@

done.clean:
	rm -f *.done

config.done: cvs-update.done
	if [ -d ytools ]; then make -C ytools config; fi
	touch $@

links.done:
	if [ -d btools ]; then ln -sf btools dspider-btools; fi
	if [ -d dspc/src/shared ]; then ln -sf dspc/src/shared dspider-shared; fi
	touch $@

cvsdir.done:
	if [ ! -d CVS ]; then \
		mkdir CVS && \
		echo :ext:$(JANWARE_USER)@cvs.jannet.de:/home/jannet/arc/cvs > CVS/Root && \
		echo proj > CVS/Repository && \
		echo "/Makefile/$Revision$ ///" | sed 's/ *evision: *\([0-9.]*\) */\1/; s/ *$$ *//' > CVS/Entries ;\
	fi
	touch $@

cvs-update.done: cvsdir.done
	cvs update -dP $(CVS_PROJECTS)
	touch $@

update.done: purge

pull.done: cvs-update.done config.done clone.done links.done
	touch $@

clone.done:
	$(PGIT) clone
	touch $@