[bootlin/training-materials updates] master: Makefile: check for all .tex files to exist (292167ee)

[Clément Léger]

Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/292167ee39305102646ad2d27bc08a80797d028e

>---------------------------------------------------------------

commit 292167ee39305102646ad2d27bc08a80797d028e
Author: Clément Léger <clement at clement-leger.fr>
Date:   Thu May 12 09:57:19 2022 +0200

    Makefile: check for all .tex files to exist
    
    Missing .tex files lead to the %-slides.pdf rule not being matched and
    thus displaying a message saying that there is no rule to build the
    training slides. Better be cautious and checked for all files to exist.
    
    Signed-off-by: Clément Léger <clement at clement-leger.fr>


>---------------------------------------------------------------

292167ee39305102646ad2d27bc08a80797d028e
 Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 78e11cef..93c6ea9f 100644
--- a/Makefile
+++ b/Makefile
@@ -125,8 +125,10 @@ SLIDES_TEX      = \
 	$(SLIDES_COMMON_AFTER)
 SLIDES_PICTURES = $(call PICTURES,$(foreach s,$(SLIDES_CHAPTERS),slides/$(s))) $(COMMON_PICTURES)
 
+# Check for all slides .tex file to exist
+$(foreach file,$(SLIDES_TEX),$(if $(wildcard $(file)),,$(error Missing file $(file) !)))
+
 %-slides.pdf: $(VARS) $(SLIDES_TEX) $(SLIDES_PICTURES) $(STYLESHEET) $(OUTDIR)/last-update.tex
-	@echo $(SLIDES_CHAPTERS_NUM)
 	@mkdir -p $(OUTDIR)
 # We generate a .tex file with \input{} directives (instead of just
 # concatenating all files) so that when there is an error, we are