# This is a makefile for "inweb". It expects the current working folder to be
# the one above the one holding this file (unusually), so it's best called
# with e.g. "make -f inweb/inweb.mk".
#
# To generate inweb.mk from its source, use e.g.:
# inweb/Tangled/inweb inweb -prototype inweb/scripts/makescript.txt -makefile inweb/inweb.mk 

ME = inweb
SAFETYCOPY = $(ME)/Tangled/inweb_dev

# The colony file for this collection of webs contains information about their
# paths, where they are woven to, and so on

COLONY = $(ME)/colony.txt

-include $(ME)/platform-settings.mk

# Making the program:

.PHONY: all

all: $(ME)/platform-settings.mk $(ME)/Tangled/$(ME)

$(ME)/Tangled/$(ME): $(ME)/Contents.w $(ME)/Chapter*/*.w $(ME)/foundation-module/Contents.w $(ME)/foundation-module/Chapter*/*.w
	$(call make-me)

.PHONY: force
force: $(ME)/platform-settings.mk
	$(call make-me)

.PHONY: macos
macos: 
	cp -f $(ME)/Materials/macos-make-settings.mk $(ME)/platform-settings.mk
	echo "=== Platform set to 64-bit MacOS. Now: make -f inweb/inweb.mk initial ==="

.PHONY: macos32
macos32:
	cp -f $(ME)/Materials/macos32-make-settings.mk $(ME)/platform-settings.mk
	echo "=== Platform set to 32-bit MacOS. Now: make -f inweb/inweb.mk initial ==="

.PHONY: windows
windows: 
	cp -f $(ME)/Materials/windows-make-settings.mk $(ME)/platform-settings.mk
	echo "=== Platform set to Windows. Now: make -f inweb/inweb.mk initial ==="

.PHONY: linux
linux: 
	cp -f $(ME)/Materials/linux-make-settings.mk $(ME)/platform-settings.mk
	echo "=== Platform set to Linux. Now: make -f inweb/inweb.mk initial ==="

.PHONY: unix
unix: 
	cp -f $(ME)/Materials/unix-make-settings.mk $(ME)/platform-settings.mk
	echo "=== Platform set to generic Unix (non-Linux, non-MacOS, non-Android). Now: make -f inweb/inweb.mk initial ==="

.PHONY: android
android: 
	cp -f $(ME)/Materials/android-make-settings.mk $(ME)/platform-settings.mk
	echo "=== Platform set to Android. Now: make -f inweb/inweb.mk initial ==="

.PHONY: initial
initial: $(ME)/platform-settings.mk
	$(call make-me-once-tangled)

.PHONY: safe
safe:
	$(call make-me-using-safety-copy)

# One of inweb's tasks is to tangle webs: but since inweb is itself a web,
# that means it can only be compiled using itself. To avoid a logical
# impossibility, a ready-tangled inweb.c is supplied as part of the Core
# Inform tarball. The following builds inweb from this:

define make-me-once-tangled
	$(CC) -o $(ME)/Tangled/$(ME).o $(ME)/Tangled/$(ME).c
	$(LINK) -o $(ME)/Tangled/$(ME) $(ME)/Tangled/$(ME).o $(LINKEROPTS)
endef

# If inweb exists already, we can compile it using itself like so:

define make-me
	$(ME)/Tangled/$(ME) $(ME) -tangle
	$(call make-me-once-tangled)
endef

# When developing inweb, it's all too easy to break it and therefore to get
# into a cleft stick: inweb has a bug, so it can't tangle inweb any more, and
# therefore the bug can't be fixed. To get around this, we maintain a spare
# copy of the inweb executable which is known to work. "make inwebdev" uses
# the safety copy of inweb to recompile inweb.

define make-me-using-safety-copy
	$(SAFETYCOPY) $(ME) -tangle
	$(call make-me-once-tangled)
endef

# Testing the program - which requires intest to be installed too.

.PHONY: test
test:
	$(INTEST) -from $(ME) all

# "make commit" should be used only by the Benevolent Overlord of Inweb.
# It updates the build code and commits to the repository.

.PHONY: commit
commit:
	$(INWEB) -advance-build-file $(ME)/build.txt
	$(INWEB) -prototype inweb/scripts/READMEscript.txt -write-me inweb/README.md
	cd $(ME); git commit -a

# Weaving the web for GitHub Pages:

.PHONY: pages
pages:
	$(INWEB) -help > $(ME)/Figures/help.txt
	$(INWEB) -show-languages > $(ME)/Figures/languages.txt
	$(INWEB) -colony $(COLONY) -member twinprimes -scan > $(ME)/Figures/scan.txt
	$(INWEB) -colony $(COLONY) -member twinprimes -weave-as TestingInweb -weave-to $(ME)/Figures/tree.txt
	cp -f $(COLONY) $(ME)/Figures/colony.txt
	cp -f $(ME)/docs-src/nav.html $(ME)/Figures/nav.txt
	$(INWEB) -advance-build-file $(ME)/build.txt
	mkdir -p $(ME)/docs
	rm -f $(ME)/docs/*.html
	mkdir -p $(ME)/docs/docs-assets
	rm -f $(ME)/docs/docs-assets/*.css
	rm -f $(ME)/docs/docs-assets/*.png
	rm -f $(ME)/docs/docs-assets/*.gif
	cp -f $(ME)/docs-src/Octagram.png $(ME)/docs/docs-assets/Octagram.png
	$(INWEB) -prototype inweb/scripts/READMEscript.txt -write-me inweb/README.md
	mkdir -p $(ME)/docs/inweb
	rm -f $(ME)/docs/inweb/*.html
	mkdir -p $(ME)/docs/goldbach
	rm -f $(ME)/docs/goldbach/*.html
	mkdir -p $(ME)/docs/twinprimes
	rm -f $(ME)/docs/twinprimes/*.html
	mkdir -p $(ME)/docs/eastertide
	rm -f $(ME)/docs/eastertide/*.html
	mkdir -p $(ME)/docs/foundation-module
	rm -f $(ME)/docs/foundation-module/*.html
	mkdir -p $(ME)/docs/foundation-test
	rm -f $(ME)/docs/foundation-test/*.html
	$(INWEB) -colony $(COLONY) -member overview -weave
	$(INWEB) -colony $(COLONY) -member goldbach -weave
	$(INWEB) -colony $(COLONY) inweb/Examples/goldbach all -weave-as Plain -weave-to inweb/docs/goldbach/goldbach.txt
	$(INWEB) -colony $(COLONY) inweb/Examples/goldbach all -weave-as TestingInweb -weave-to inweb/docs/goldbach/goldbach-test.txt
	$(INWEB) -colony $(COLONY) inweb/Examples/goldbach all -weave-as TeX -weave-to inweb/docs/goldbach/goldbach.tex
	$(INWEB) -colony $(COLONY) -member twinprimes -weave
	$(INWEB) -colony $(COLONY) -member eastertide -weave
	$(INWEB) -colony $(COLONY) -member inweb -weave
	$(INWEB) -colony $(COLONY) -member foundation -weave
	$(INWEB) -colony $(COLONY) -member foundation-test -weave

# Cleaning up:

.PHONY: clean
clean:
	$(call clean-up)

.PHONY: purge
purge:
	$(call clean-up)

# Note that the tangled inweb.c is not cleaned up: it's needed to bootstrap
# the use of inweb from a fresh installation where there's no executable
# inweb yet with which to tangle inweb.c (see below).

define clean-up
	rm -f $(ME)/Tangled/*.o
	rm -f $(ME)/Tangled/*.h
endef