[damned-lies] Prepare empty po files with guessable values (Bug #573814)

[Claude Paroz <claudep src gnome org>]

commit 5a01f792ad68aad81e6234b5aa4a8d67a1037cbd
Author: Claude Paroz <claude 2xlibre net>
Date:   Sun May 24 00:06:15 2009 +0200

    Prepare empty po files with guessable values (Bug #573814)
    
    Instead of merely offering the POT file for a new translation, try
    to guess values an fill placeholders with these values, when they
    are available (package name, language, mailing_list, year, etc.)
---
 stats/views.py                          |   55 ++++++++++++++++++++++++++++++-
 templates/vertimus/vertimus_detail.html |    2 +-
 urls.py                                 |    1 +
 vertimus/views.py                       |    4 ++
 4 files changed, 60 insertions(+), 2 deletions(-)

diff --git a/stats/views.py b/stats/views.py
index c7e62db..0a131c1 100644
--- a/stats/views.py
+++ b/stats/views.py
@@ -17,18 +17,20 @@
 # You should have received a copy of the GNU General Public License
 # along with Damned Lies; if not, write to the Free Software Foundation, Inc.,
 # 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+from datetime import date
 
 from django.conf import settings
 from django.shortcuts import render_to_response, get_object_or_404
 from django.contrib.auth.decorators import login_required
 from django.core import serializers
-from django.http import HttpResponse
+from django.http import HttpResponse, Http404
 from django.template import RequestContext
 from django.utils.translation import ugettext as _
 
 from stats.models import Statistics, Module, Branch, Category, Release
 from stats.forms import ModuleBranchForm
 from stats import utils
+from languages.models import Language
 
 MIME_TYPES = {'json': 'application/json',
               'xml':  'text/xml'
@@ -154,6 +156,57 @@ def docimages(request, module_name, potbase, branch_name, langcode):
     }
     return render_to_response('module_images.html', context, context_instance=RequestContext(request))
 
+def dynamic_po(request, filename):
+    """ Generates a dynamic po file from the POT file of a branch """
+    try:
+        module, domain, branch, locale, ext = filename.split(".")
+        language = Language.objects.select_related('team').get(locale=locale)
+    except:
+        raise Http404
+    potfile = get_object_or_404(Statistics,
+                             branch__module__name=module,
+                             branch__name=branch,
+                             domain__name=domain,
+                             language=None)
+    file_path = potfile.po_path()
+    f = open(file_path)
+
+    dyn_content = """# %(lang)s translation of %(pack)s.
+# Copyright (C) %(year)s %(pack)s's COPYRIGHT HOLDER
+# This file is distributed under the same license as the %(pack)s package.\n""" % {
+        'lang': language.name,
+        'pack': module,
+        'year': date.today().year
+    }
+    if request.user.is_authenticated():
+        person = request.user.person
+        dyn_content += "# %(name)s <%(email)s>, %(year)s.\n#\n" % {
+            'name' : person.name,
+            'email': person.email,
+            'year' : date.today().year,
+        }
+    else:
+        dyn_content += "# FIRST AUTHOR <EMAIL ADDRESS>, YEAR.\n#\n"
+
+    line = "1"
+    while line:
+        line = f.readline()
+        if line and line[0] == '#':
+            # Skip first lines of the file
+            continue
+        # Transformations
+        line = {
+            '"Project-Id-': "\"Project-Id-Version: %s %s\\n\"\n" % (module, branch),
+            '"Language-Te': "\"Language-Team: %s <%s>\\n\"\n" % (
+                language.name, language.team and language.team.mailing_list or "%s li org" % locale),
+            '"Content-Typ': "\"Content-Type: text/plain; charset=UTF-8\\n\"\n",
+            '"Plural-Form': "\"Plural-Forms: %s;\\n\"\n" % (language.plurals or "nplurals=INTEGER; plural=EXPRESSION"),
+        }.get(line[:12], line)
+        dyn_content += line
+        if line == "\n":
+            break # Quit loop on first blank line after headers
+    return HttpResponse(dyn_content + f.read(), 'text/plain')
+
 def releases(request, format='html'):
     all_releases = Release.objects.order_by('status', '-name')
     if format in ('json', 'xml'):
diff --git a/templates/vertimus/vertimus_detail.html b/templates/vertimus/vertimus_detail.html
index cd43cf6..8be96ea 100644
--- a/templates/vertimus/vertimus_detail.html
+++ b/templates/vertimus/vertimus_detail.html
@@ -36,7 +36,7 @@
 
 <div style="line-height: 1.7">
 <em><a href="{{ stats.pot_url }}"><img src="{{ MEDIA_URL }}img/download.png" alt="{% trans "Download POT file" %}" /></a> {{ stats.pot_text }}</em><br />
-<a href="{{ stats.po_url }}"><img src="{{ MEDIA_URL }}img/download.png" alt="{% trans "Download PO file" %}" /></a> {% trans "Translated:" %}
+<a href="{{ po_url }}"><img src="{{ MEDIA_URL }}img/download.png" alt="{% trans "Download PO file" %}" /></a> {% trans "Translated:" %}
 {{ stats.get_translationstat|safe }}&nbsp;
 <div class="graph graphinline">
   <div class="translated" style="width: {{ stats.tr_percentage }}px;"></div>
diff --git a/urls.py b/urls.py
index 90a75d1..f67119f 100644
--- a/urls.py
+++ b/urls.py
@@ -27,6 +27,7 @@ urlpatterns = patterns('',
 
 urlpatterns += patterns('stats.views',
     url(r'^module/$', 'modules', name='modules'),
+    url(r'^module/po/(?P<filename>.*)$', 'dynamic_po', name='dynamic_po'),
     (r'^module/(?P<module_name>[\w\-\+]+)/$', 'module'),
     (r'^module/(?P<module_name>[\w\-\+]+)/edit/branches/$', 'module_edit_branches'),
     (r'^module/(?P<module_name>[\w\-\+]+)/branch/(?P<branch_name>[\w-]+)/$', 'module_branch'),
diff --git a/vertimus/views.py b/vertimus/views.py
index 7ea4429..f888bae 100644
--- a/vertimus/views.py
+++ b/vertimus/views.py
@@ -56,9 +56,12 @@ def vertimus(request, branch, domain, language, stats=None):
     if not stats:
         try:
             stats = Statistics.objects.get(branch=branch, domain=domain, language=language)
+            po_url = stats.po_url()
         except Statistics.DoesNotExist:
             # Get the POT file stats
             stats = get_object_or_404(Statistics, branch=branch, domain=domain, language=None)
+            po_url = urlresolvers.reverse('dynamic_po',
+                        args=("%s.%s.%s.%s.po" % (branch.module.name, domain.name, branch.name, language.locale),))
 
     # Get the state of the translation
     (state_db, created) = StateDb.objects.get_or_create(
@@ -98,6 +101,7 @@ def vertimus(request, branch, domain, language, stats=None):
     context = {
         'pageSection': 'module',
         'stats': stats,
+        'po_url': po_url,
         'branch': branch,
         'other_states': other_branch_states,
         'domain': domain,