Determine Paths at Runtime

Uses GRAMPS_RESOURCES to override the root location of the Gramps data files (which would normally be $(prefix)/share).
In setup.py install, writes $(prefix)/share to gen/utils/resource-path, installs that file, then deletes it again from the source tree. The presence or absence determines whether Gramps is running from the source directory or from an installation.

Const.py is now a static file; const.py.in is no longer used. Note that because importing const into setup tried to initialize things that we don't want initialized, VERSION is removed, and imported from gramps.version -- a file which will be added in the next change. Consequently, this commit will not run.

svn: r21613

setup.py

@@ -46,8 +46,9 @@ import subprocess
 if sys.version_info[0] < 3:
     import commands
 from stat import ST_MODE
+import io
+from gramps.version import VERSION
 
-VERSION = '4.1.0'
 ALL_LINGUAS = ('bg', 'ca', 'cs', 'da', 'de', 'el', 'en_GB', 'es', 'fi', 'fr', 'he',
                'hr', 'hu', 'it', 'ja', 'lt', 'nb', 'nl', 'nn', 'pl', 'pt_BR',
                'pt_PT', 'ru', 'sk', 'sl', 'sq', 'sv', 'uk', 'vi', 'zh_CN')
@@ -158,11 +159,10 @@ def build_man(build_cmd):
                     os.remove(newfile)
 
             if filename:
-                f_in = open(newfile, 'rb')
-                f_out = gzip.open(man_file_gz, 'wb')
-                f_out.writelines(f_in)
-                f_out.close()
-                f_in.close()
+                #Binary io, so open is OK
+                with open(newfile, 'rb') as f_in,\
+                        gzip.open(man_file_gz, 'wb') as f_out:
+                    f_out.writelines(f_in)
 
                 os.remove(newfile)
                 filename = False
@@ -230,47 +230,6 @@ def merge(in_file, out_file, option, po_dir='po', cache=True):
                     out_file)
             raise SystemExit(msg)
 
-def write_const_py(command):
-    '''
-    Write the const.py file.
-    '''
-    const_py_in = os.path.join('gramps', 'gen', 'const.py.in')
-    const_py = os.path.join('gramps', 'gen', 'const.py')
-    if hasattr(command, 'install_data'):
-        #during install
-        share_dir = os.path.join(command.install_data, 'share')
-        locale_dir = os.path.join(share_dir, 'locale')
-        data_dir = os.path.join(share_dir, 'gramps')
-        image_dir = os.path.join(share_dir, 'gramps', 'icons', 'hicolor')
-        doc_dir = os.path.join(share_dir, 'doc', 'gramps')
-        if sys.platform == 'win32':
-            (share_dir, locale_dir, data_dir, image_dir, doc_dir) = \
-                [path.replace('\\', '\\\\')  for path in 
-                 (share_dir, locale_dir, data_dir, image_dir, doc_dir)]
-
-    else:
-        #in build
-        if 'install' in command.distribution.command_obj:
-            # Prevent overwriting version created during install
-            return
-        base_dir = os.path.abspath(os.path.dirname(__file__))
-        locale_dir = os.path.abspath(os.path.join(command.build_base, 'mo'))
-        data_dir = os.path.join(base_dir, 'data')
-        image_dir = os.path.join(base_dir, 'images')
-        doc_dir = base_dir
-        if sys.platform == 'win32':
-            (locale_dir, data_dir, image_dir, doc_dir) = \
-                [path.replace('\\', '\\\\')  for path in 
-                 (locale_dir, data_dir, image_dir, doc_dir)]
-    
-    subst_vars = (('@VERSIONSTRING@', VERSION), 
-                  ('@LOCALE_DIR@', locale_dir),
-                  ('@DATA_DIR@', data_dir),
-                  ('@IMAGE_DIR@', image_dir),
-                  ('@DOC_DIR@', doc_dir),)
-                  
-    substitute_variables(const_py_in, const_py, subst_vars)
-
 def update_posix(command):
     '''
     post-hook to update Linux systems after install
@@ -292,12 +251,11 @@ class build(_build):
         if not sys.platform == 'win32':
             build_man(self)
         build_intl(self)
-        write_const_py(self)
         _build.run(self)
 
 class install(_install):
     """Custom install command."""
-    _install.user_options.append(('enable-packager-mode', None, 
+    _install.user_options.append(('enable-packager-mode', None,
                          'disable post-installation mime type processing'))
     _install.boolean_options.append('enable-packager-mode')
 
@@ -306,14 +264,24 @@ class install(_install):
         self.enable_packager_mode = False
 
     def run(self):
-        write_const_py(self)
+        resource_file = os.path.join(os.path.dirname(__file__), 'gramps', 'gen',
+                                     'utils', 'resource-path')
+        with io.open(resource_file, 'w', encoding='utf-8',
+                     errors='strict') as fp:
+            path = os.path.abspath(os.path.join(self.install_data, 'share'))
+            if sys.version_info[0] < 3:
+                path = unicode(path)
+            fp.write(path)
+
         _install.run(self)
         if self.enable_packager_mode:
             log.warn('WARNING: Packager mode enabled.  Post-installation '
                      'scripts were not run.')
         else:
             update_posix(self)
-            
+
+        os.remove(resource_file)
+
 #-------------------------------------------------------------------------
 #
 # Packages
@@ -424,6 +392,7 @@ for (dirpath, dirnames, filenames) in os.walk(basedir):
         package_data_core.append(dirpath[7:] + '/' + dirname + '/*.js')
 package_data_core.append('plugins/webstuff/images/*.gif')
 package_data_core.append('plugins/webstuff/images/*.ico')
+package_data_core.append('gen/utils/resource-path')
 
 package_data_gui = ['gui/glade/*.glade']