From 3b1107a34f2f2db787157f11ab68d7b468f603ec Mon Sep 17 00:00:00 2001
From: Sébastien Dailly <sebastien@dailly.me>
Date: Sat, 11 May 2024 17:56:58 +0200
Subject: Override model styles with local styles automaticaly

---
 .gitignore             |  3 +++
 Makefile               |  2 +-
 common/Makefile.common | 31 +++++++++++++++++++++++++------
 readme.rst             |  6 +++++-
 4 files changed, 34 insertions(+), 8 deletions(-)

diff --git a/.gitignore b/.gitignore
index b784400..67b0c89 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,5 @@
 *.pdf
 *.swp
+*/example.png
+*/tmp
+readme.html
diff --git a/Makefile b/Makefile
index f1523c7..c0fab78 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ SUBDIRS := $(wildcard model*/. example*/.)
 all: $(SUBDIRS)
 
 $(SUBDIRS):
-	$(MAKE) -C $@
+	$(MAKE) -j -C $@
 
 pngs: $(SUBDIRS)
 	for dir in $(SUBDIRS); do \
diff --git a/common/Makefile.common b/common/Makefile.common
index 311db70..730a994 100644
--- a/common/Makefile.common
+++ b/common/Makefile.common
@@ -13,11 +13,31 @@ all: $(PDFS)
 BIBS =$(wildcard *.bib)
 
 DIR = $(sort $(shell find $(SOURCE) -name '*.rst' -print))
-SOURCES = $(sort $(filter-out $(FILTERS), $(wildcard $(MODEL)/resources/*.tex) ))
 
-# Sources comming from extra styles.
-# Used in the target regeneration.
-EXT_SOURCES = $(filter %.tex, $(EXTRA_STYLES) )
+# Pick the first file for the given name, either in the path from the model, or
+# in the local path from the source.
+select_file = \
+  $(firstword $(wildcard ./resources/$(1)) $(wildcard $(MODEL)/resources/$1))
+
+
+# Select the files to use in the styles.
+ifeq ($(MODEL),.)
+  $(info Modèle de base)
+
+  SOURCES = $(sort $(filter-out $(FILTERS), $(wildcard $(MODEL)/resources/*.tex) ))
+
+else
+  $(info Modèle surchargé)
+
+  # Remove from the list the elements given in the variable FILTERS
+  NEW_STYLES = $(wildcard resources/*.tex)
+  MODEL_STYLES = $(wildcard $(MODEL)/resources/*.tex)
+  # For each file, extract the name, and sort the list by order.
+  STYLE_NAME = $(sort $(foreach fic,$(NEW_STYLES) $(filter-out $(FILTERS),$(MODEL_STYLES)),$(notdir $(fic))))
+  # Pick the file either in the current directory, or in the model path
+  SOURCES = $(foreach fic,$(STYLE_NAME),$(call select_file,$(fic)))
+
+endif
 
 null  :=
 space := $(null) #
@@ -31,7 +51,6 @@ EXTRA_RST_OPTIONS ?=
 
 EXTRA_STYLES ?=
 
-
 # Remove the comments and the empty lines from the module list file
 PACK = $(shell sed -e 's/\#.*$$//' -e '/^\s$$/d' $(MODEL)/resources/modules)
 PACKAGES = $(subst $(space),$(comma),$(strip $(PACK)))
@@ -44,7 +63,7 @@ tmp/model.tex: | tmp
 	$(file >$@,\def\commonPath{$(MODEL)/../common/})
 
 # Generate the latex file from rst
-tmp/%.tex: %.rst $(INCLUDED_PDF) $(SOURCES) $(EXT_SOURCES) | tmp
+tmp/%.tex: %.rst $(INCLUDED_PDF) $(SOURCES) | tmp
 	$$(command -v rst2latex rst2latex.py | head -n 1)  \
 		--no-section-subtitles \
 		--table-style=borderless \
diff --git a/readme.rst b/readme.rst
index 44f98e0..d07a07e 100755
--- a/readme.rst
+++ b/readme.rst
@@ -40,7 +40,11 @@ Pour réutiliser un modèle, il suffit de créer ces lignes dans un fichier
 Personalisation
 ---------------
 
-Les règles de basent peuvent être personalisée en fonction des besoins.
+Les règles de basent peuvent être personalisées en fonction des besoins.
+
+Chaque fichier de style présent dans le répertoire du modèle peut être
+surchargé par un fichier de style de même nom présent dans le répertoire
+courant du modèle.
 
 :`EXTRA_RST_OPTIONS`:
 
-- 
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