strategy: wip reachable etc.

[topbloke-formulae.git] / Makefile

diff --git a/Makefile b/Makefile
index 8bd84b3ea7214db1a1719fad188214b3a10cbfd9..7a4f7d4f0dec6fe44aba5ee66feee96a205859e4 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,12 +1,20 @@
 
 SRCS := $(wildcard *.tex)
 
-default: final.pdf
+default: final.pdf final.ps
 
-once:
+once:          revid.inc
                pdflatex -halt-on-error article.tex </dev/null
 
-final.pdf: $(SRCS)
+GITDIR:=$(addsuffix /, $(shell git rev-parse --git-dir))
+HEADREF:=$(shell git symbolic-ref HEAD 2>/dev/null)
+HEADDEPS:=$(addprefix $(GITDIR), HEAD $(HEADREF))
+
+revid.inc:     .git-revid $(SRCS) Makefile $(HEADDEPS)
+               ./$< >$@.new
+               cmp $@.new $@ || mv -f $@.new $@
+
+final.pdf: $(SRCS) revid.inc
                $(MAKE) once
                $(MAKE) once
                $(MAKE) once
@@ -16,4 +24,4 @@ final.pdf: $(SRCS)
                pdftops $*.pdf $*.ps
 
 clean:
-       rm -f *.aux *.log *.dvi *.out *.pdf *~
+       rm -f *.aux *.log *.dvi *.out *.pdf *.ps *~