Ajout hook post-update au dépôt des données

Pour refaire le site lorsqu'il y a un commit qui débarque d'ailleurs que
le site.

makefile

@@ -18,7 +18,7 @@ bornespages   = ${bornes:${datarepo}/%=public/bornes/%.html}
 figures      != cut -f1 -d':' figurerules | tr -d ' '
 layoutcible   = ${layouts:lib/%=public/layouts/%}
 
-all: exec public/articles.tsv figurerules ${figures} public/post_meteo.html public/bornes/index.html public/blog/index.html ${annexrules} ${bornespages} ${pages} ${layoutcible} public/style.css page common ${datarepo}/.git/hooks/post-commit public/bornes/index.html .git/hooks/post-update
+all: exec public/articles.tsv figurerules ${figures} public/post_meteo.html public/bornes/index.html public/blog/index.html ${annexrules} ${bornespages} ${pages} ${layoutcible} public/style.css page common ${datarepo}/.git/hooks/post-commit public/bornes/index.html .git/hooks/post-update ${datarepo}/.git/hooks/post-update
 
 test: all; busybox httpd -h public -p 8000
 
@@ -40,8 +40,12 @@ include figurerules
 
 ${datarepo}/.git/hooks/post-commit : rc/post-commit makefile
 	sed 's,$$webrepo,${webrepo},' $< > $@; chmod +x $@
+${datarepo}/.git/hooks/post-update : rc/post-update makefile
+	sed 's,$$webrepo,${webrepo},' $< > $@; chmod +x $@
+
 .git/hooks/post-update : rc/post-update makefile
 	sed 's,$$webrepo,${webrepo},' $< > $@; chmod +x $@
+
 page            : lib/full ; touch $@
 common          : lib/full ; touch $@