Append default datadir to each datadir list (or iterator)

patacrep/build.py

@@ -8,7 +8,7 @@ import threading
 import os.path
 from subprocess import Popen, PIPE, call, check_call
 
-from patacrep import __DATADIR__, authors, content, errors, files
+from patacrep import authors, content, errors, files
 from patacrep.index import process_sxd
 from patacrep.templates import TexBookRenderer
 from patacrep.songs import DataSubpath
@@ -71,8 +71,6 @@ class Songbook(object):
                     "Ignoring non-existent datadir '{}'.".format(path)
                     )
 
-        abs_datadir.append(__DATADIR__)
-
         self.config['datadir'] = abs_datadir
         self.config['_songdir'] = [
             DataSubpath(path, 'songs')

patacrep/content/include.py

@@ -10,24 +10,22 @@ import sys
 import logging
 
 from patacrep.content import process_content, ContentError
-from patacrep import encoding
-from patacrep import errors
+from patacrep import encoding, errors, files
 
 LOGGER = logging.getLogger(__name__)
 
-def load_from_datadirs(path, config=None):
+def load_from_datadirs(path, datadirs):
     """Load 'path' from one of the datadirs.
 
     Raise an exception if it was found if none of the datadirs of 'config'.
     """
-    for datadir in config.get("datadir", []):
-        filepath = os.path.join(datadir, path)
+    for filepath in files.iter_datadirs(datadirs, path):
         if os.path.exists(filepath):
             return filepath
     # File not found
     raise ContentError(
         "include",
-        errors.notfound(path, config.get("datadir", [])),
+        errors.notfound(path, list(files.iter_datadirs(datadirs)))
         )
 
 #pylint: disable=unused-argument
@@ -43,7 +41,7 @@ def parse(keyword, config, argument, contentlist):
     new_contentlist = []
 
     for path in contentlist:
-        filepath = load_from_datadirs(path, config)
+        filepath = load_from_datadirs(path, config.get('datadir', []))
         content_file = None
         try:
             with encoding.open_read(

patacrep/content/tex.py

@@ -36,8 +36,8 @@ def parse(keyword, argument, contentlist, config):
             )
     filelist = []
     basefolders = [path.fullpath for path in config['_songdir']] +\
-                  config['datadir'] + \
-                  [os.path.join(path, "latex") for path in config['datadir']]
+                  list(files.iter_datadirs(config['datadir'])) + \
+                  list(files.iter_datadirs(config['datadir'], 'latex'))
     for filename in contentlist:
         checked_file = None
         for path in basefolders:

patacrep/data/templates/layout.tex

@@ -27,7 +27,7 @@
 
 \makeatletter
 \def\input@path{ %
-    (* for dir in datadir *)
+    (* for dir in datadir|iter_datadirs *)
         {(( dir | path2posix ))/latex/} %
     (* endfor *)
 }

patacrep/data/templates/songs.tex

@@ -88,7 +88,7 @@
 
 \usepackage{graphicx}
 \graphicspath{ %
-    (* for dir in datadir *)
+    (* for dir in datadir|iter_datadirs*)
         {(( dir | path2posix ))/} %
     (* endfor *)
 }

patacrep/files.py

@@ -9,6 +9,7 @@ import re
 import sys
 
 from patacrep import utils
+from patacrep import __DATADIR__
 
 LOGGER = logging.getLogger(__name__)
 
@@ -129,3 +130,14 @@ def load_plugins(datadirs, root_modules, keyword):
         if hasattr(module, keyword):
             plugins.update(getattr(module, keyword))
     return plugins
+
+def iter_datadirs(datadirs, *subpath):
+    """Iterate over datadirs.
+
+    The default datadir is returned last.
+
+    Subpath are appended after each datadir.
+    """
+    for path in datadirs:
+        yield os.path.join(path, *subpath)
+    yield os.path.join(__DATADIR__, *subpath)

patacrep/songs/__init__.py

@@ -2,14 +2,13 @@
 
 import errno
 import hashlib
-import jinja2
 import logging
 import os
 import pickle
 import re
 
-from patacrep.authors import process_listauthors
 from patacrep import files, encoding
+from patacrep.authors import process_listauthors
 
 LOGGER = logging.getLogger(__name__)
 
@@ -210,10 +209,7 @@ class Song:
     def iter_datadirs(self, *subpath):
         """Return an iterator of existing datadirs (with an optionnal subpath)
         """
-        for directory in self.config['datadir']:
-            fullpath = os.path.join(directory, *subpath)
-            if os.path.isdir(fullpath):
-                yield fullpath
+        yield from files.iter_datadirs(self.config['datadir'], *subpath)
 
     def search_datadir_file(self, filename, extensions=None, directories=None):
         """Search for a file name.

patacrep/templates.py

@@ -4,7 +4,6 @@ from jinja2 import Environment, FileSystemLoader, ChoiceLoader, \
         TemplateNotFound, nodes
 from jinja2.ext import Extension
 from jinja2.meta import find_referenced_templates as find_templates
-import os
 import re
 import json
 
@@ -85,6 +84,7 @@ class Renderer:
         self.jinjaenv.trim_blocks = True
         self.jinjaenv.lstrip_blocks = True
         self.jinjaenv.filters["path2posix"] = files.path2posix
+        self.jinjaenv.filters["iter_datadirs"] = files.iter_datadirs
         self.jinjaenv.filters["lang2babel"] = lang2babel
         self.template = self.jinjaenv.get_template(template)
 
@@ -105,8 +105,8 @@ class TexBookRenderer(Renderer):
         self.lang = lang
         # Load templates in filesystem ...
         loaders = [
-            FileSystemLoader(os.path.join(datadir, 'templates'))
-            for datadir in datadirs
+            FileSystemLoader(datadir)
+            for datadir in files.iter_datadirs(datadirs, 'templates')
             ]
         jinjaenv = Environment(
             loader=ChoiceLoader(loaders),

test/test_chordpro/test_parser.py

@@ -8,7 +8,7 @@ import os
 import unittest
 from pkg_resources import resource_filename
 
-from patacrep import files, __DATADIR__
+from patacrep import files
 from patacrep.build import DEFAULT_CONFIG
 from patacrep.encoding import open_read
 
@@ -74,7 +74,6 @@ class FileTest(unittest.TestCase, metaclass=dynamic.DynamicTest):
         if 'datadir' not in cls.config:
             cls.config['datadir'] = []
         cls.config['datadir'].append('datadir')
-        cls.config['datadir'].append(__DATADIR__)
 
         cls.song_plugins = files.load_plugins(
             datadirs=cls.config['datadir'],