diff options
Diffstat (limited to 'packages')
| -rw-r--r-- | packages/views.py | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/packages/views.py b/packages/views.py index 277b790..1ab4749 100644 --- a/packages/views.py +++ b/packages/views.py @@ -342,4 +342,71 @@ def download(request, name='', repo='', arch=''): url = string.Template('${host}${repo}/os/${arch}/${file}').substitute(details) return HttpResponseRedirect(url) +def arch_differences(request): + from django.db import connection + from operator import itemgetter + # This is a monster. Join packages against itself, looking for packages in + # our non-'any' architectures only, and not having a corresponding package + # entry in the other table (or having one with a different pkgver). We will + # then go and fetch all of these packages from the database and display + # them later using normal ORM models. + # TODO: we have some hardcoded magic here with respect to the arches. + arch_a = Arch.objects.get(name='i686') + arch_b = Arch.objects.get(name='x86_64') + sql = """ +SELECT p.id, q.id + FROM packages p + LEFT JOIN packages q + ON ( + p.pkgname = q.pkgname + AND p.repo_id = q.repo_id + AND p.arch_id != q.arch_id + AND p.id != q.id + ) + WHERE p.arch_id IN (%s, %s) + AND ( + q.id IS NULL + OR + p.pkgver != q.pkgver + OR + p.pkgrel != q.pkgrel + ) +""" + cursor = connection.cursor() + cursor.execute(sql, [arch_a.id, arch_b.id]) + results = cursor.fetchall() + to_fetch = [] + for row in results: + # column A will always have a value, column B might be NULL + to_fetch.append(row[0]) + # fetch all of the necessary packages + pkgs = Package.objects.in_bulk(to_fetch) + # now build a list of tuples containing differences + differences = [] + for row in results: + pkg_a = pkgs.get(row[0]) + pkg_b = pkgs.get(row[1]) + # We want arch_a to always appear first + # pkg_a should never be None + if pkg_a.arch == arch_a: + item = (pkg_a.pkgname, pkg_a.repo, pkg_a, pkg_b) + else: + # pkg_b can be None in this case, so be careful + name = pkg_a.pkgname if pkg_a else pkg_b.pkgname + repo = pkg_a.repo if pkg_a else pkg_b.repo + item = (name, repo, pkg_b, pkg_a) + if item not in differences: + differences.append(item) + + # now sort our list by repository, package name + differences.sort(key=lambda a: (a[1].name, a[0])) + + context = { + 'arch_a': arch_a, + 'arch_b': arch_b, + 'differences': differences, + } + return render_to_response('packages/differences.html', + RequestContext(request, context)) + # vim: set ts=4 sw=4 et: |