Support de plusieurs datadirs

songbook

@@ -108,16 +108,22 @@ def main():
         LOGGER.error("Error while loading file '{}'.".format(songbook_path))
         sys.exit(1)
 
+    datadirs = []
+    try:
+        for path in songbook['datadir']:
+            if not os.path.isabs(path):
+                datadirs.append(os.path.join(os.path.dirname(songbook_path),
+                                             path
+                                             )
+                                )
+    except KeyError:
+        datadirs = [os.path.dirname(songbook_path)]
 
     if options.datadir is not None:
-        songbook['datadir'] = options.datadir[0]
-    elif 'datadir' in songbook.keys():
-        if not os.path.isabs(songbook['datadir']):
-            songbook['datadir'] = os.path.join(os.path.dirname(songbook_path),
-                                               songbook['datadir']
-                                               )
-    else:
-        songbook['datadir'] = os.path.dirname(songbook_path)
+        datadirs = [options.datadir[0]].extend(datadirs)
+
+    songbook['datadir'] = datadirs
+
 
     try:
         sb_builder = SongbookBuilder(songbook, basename)

songbook_core/build.py

@@ -57,9 +57,7 @@ class Songbook(object):
                 'lang': 'english',
                 'sort': [u"by", u"album", u"@title"],
                 'content': None,
-                'datadir': os.path.abspath('.'),
                 }
-        self.songslist = None
         self._parse_raw(raw_songbook)
 
     @staticmethod
@@ -94,7 +92,7 @@ class Songbook(object):
         are stored verbatim in self.config.
         """
         self.config.update(raw_songbook)
-        self.config['datadir'] = os.path.abspath(self.config['datadir'])
+        self._set_datadir()
 
         # Compute song list
         if self.config['content'] is None:
@@ -129,6 +127,23 @@ class Songbook(object):
             if key not in self.config['authwords']:
                 self.config['authwords'][key] = value
 
+    def _set_datadir(self):
+        """Set the default values for datadir"""
+        try:
+            if isinstance(self.config['datadir'], str) or \
+               isinstance(self.config['datadir'], unicode):
+                self.config['datadir'] = [self.config['datadir']]
+        except KeyError:  # No datadir in the raw_songbook
+            self.config['datadir'] = [os.path.abspath('.')]
+
+        abs_datadir = []
+        for path in self.config['datadir']:
+            abs_datadir.append(os.path.abspath(path))
+
+        abs_datadir.append(__DATADIR__)
+
+        self.config['datadir'] = abs_datadir
+
     def _parse_songs(self):
         """Parse content included in songbook."""
         self.contentlist = SongbookContent(self.config['datadir'])
@@ -186,18 +201,7 @@ class SongbookBuilder(object):
         return self._called_functions[function]
 
     def _set_latex(self):
-        """Set TEXINPUTS and LaTeX options."""
-        if not 'TEXINPUTS' in os.environ.keys():
-            os.environ['TEXINPUTS'] = ''
-        os.environ['TEXINPUTS'] += os.pathsep + os.path.join(
-                __DATADIR__,
-                'latex',
-                )
-        os.environ['TEXINPUTS'] += os.pathsep + os.path.join(
-                self.songbook.config['datadir'],
-                'latex',
-                )
-
+        """Set LaTeX options."""
         if self.unsafe:
             self._pdflatex_options.append("--shell-escape")
         if not self.interactive:

songbook_core/data/templates/layout.tex

@@ -37,6 +37,12 @@
 
 (* block documentclass *)
 \documentclass[((mainfontsize))pt]{article}
+\makeatletter
+\def\input@path{(* for dir in datadir *)
+                 {((dir))/latex/} %
+                 (* endfor *)
+                 }
+\makeatother
 (* endblock *)
 
 (* block songbookpackages *)

songbook_core/data/templates/songs.tex

@@ -48,7 +48,7 @@
             "values": {"chorded": {"english": "With guitar chords", "french": "Avec accords de guitare" },
                                    "lyric": {"english": "Lyrics only", "french": "Paroles uniquement"}
                      },
-            "default": {"default":"chorded"}, 
+            "default": {"default":"chorded"},
             "mandatory": true
             },
 "lang": {"description": {"english": "Language", "french": "Langue"},
@@ -77,7 +77,11 @@
    \lang{((lang))}
 
    \usepackage{graphicx}
-   \graphicspath{{((datadir))/img/}}
+   \graphicspath{(* for dir in datadir *)
+                 {((dir))/img/} %
+                 (* endfor *)
+                 }
+
 
    \makeatletter
    \@ifpackageloaded{hyperref}{}{\newcommand{\phantomsection}{}}

songbook_core/songs.py

@@ -90,11 +90,10 @@ def unprefixed_title(title, prefixes):
 class SongbookContent(object):
     """Manipulation et traitement de liste de chansons"""
 
-    def __init__(self, library):
-        self._songdir = os.path.join(library, 'songs')
-
-        # Sorted list of the content
-        self.content = []
+    def __init__(self, datadirs):
+        self.songdirs = [os.path.join(d, 'songs')
+                         for d in datadirs]
+        self.content = []  # Sorted list of the content
 
     def append_song(self, filename):
         """Ajout d'une chanson à la liste
@@ -124,8 +123,11 @@ class SongbookContent(object):
             if type == "song":
                 # Add all the songs matching the regex
                 before = len(self.content)
-                for filename in glob.iglob(os.path.join(self._songdir, elem)):
-                    self.append_song(filename)
+                for songdir in self.songdirs:
+                    for filename in glob.iglob(os.path.join(songdir, elem)):
+                        self.append_song(filename)
+                    if len(self.content) > before:
+                        break
                 if len(self.content) == before:
                     # No songs were added
                     LOGGER.warning(

songbook_core/templates.py

@@ -68,25 +68,25 @@ def _escape_tex(value):
 class TexRenderer(object):
     """Render a template to a LaTeX file."""
 
-    def __init__(self, template, datadir, lang):
+    def __init__(self, template, datadirs, lang):
         '''Start a new jinja2 environment for .tex creation.
 
         Arguments:
         - template: name of the template to use.
-        - datadir: location of the data directory (which max contain
-          file <datadir>/templates/<template>).
+        - datadirs: list of locations of the data directory
+          (which max contain file <datadir>/templates/<template>).
         - lang: main language of songbook.
         '''
         self.lang = lang
+        # Load templates in filesystem ...
+        loaders = [FileSystemLoader(os.path.join(datadir, 'templates'))
+                      for datadir in datadirs]
+        # or in the main package
+        loaders.append(PackageLoader(
+                         'songbook_core', os.path.join('data', 'templates')
+                      ))
         self.texenv = Environment(
-                loader=ChoiceLoader([
-                    FileSystemLoader(
-                        os.path.join(datadir, 'templates')
-                        ),
-                    PackageLoader(
-                        'songbook_core', os.path.join('data', 'templates')
-                        ),
-                    ]),
+                loader=ChoiceLoader(loaders),
                 extensions=[VariablesExtension],
                 )
         self.texenv.block_start_string = '(*'