[PATCH v4 5/7] remote-mediawiki: support fetching from (Main) namespace

From: Antoine Beaupré <anarcat@debian.org>
Date: Nov 6, 2017, 21:19 UTC
Message-ID: <20171106211953.27910-6-anarcat@debian.org>
In-Reply-To: <20171106211953.27910-1-anarcat@debian.org>

When we specify a list of namespaces to fetch from, by default the MW API will not fetch from the default namespace, refered to as "(Main)" in the documentation:

https://www.mediawiki.org/wiki/Manual:Namespace#Built-in_namespaces

I haven't found a way to address that "(Main)" namespace when getting the namespace ids: indeed, when listing namespaces, there is no "canonical" field for the main namespace, although there is a "*" field that is set to "" (empty). So in theory, we could specify the empty namespace to get the main namespace, but that would make specifying namespaces harder for the user: we would need to teach users about the "empty" default namespace. It would also make the code more complicated: we'd need to parse quotes in the configuration.

So we simply override the query here and allow the user to specify "(Main)" since that is the publicly documented name.

Signed-off-by: Antoine Beaupré <anarcat@debian.org>
---
 contrib/mw-to-git/git-remote-mediawiki.perl | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/contrib/mw-to-git/git-remote-mediawiki.perl b/contrib/mw-to-git/git-remote-mediawiki.perl
index 7f483180f..7a0824f31 100755
--- a/contrib/mw-to-git/git-remote-mediawiki.perl
+++ b/contrib/mw-to-git/git-remote-mediawiki.perl
@@ -264,7 +264,12 @@ sub get_mw_tracked_categories {
 sub get_mw_tracked_namespaces {
     my $pages = shift;
     foreach my $local_namespace (@tracked_namespaces) {
-        my $namespace_id = get_mw_namespace_id($local_namespace);
+        my $namespace_id;
+        if ($local_namespace eq "(Main)") {
+            $namespace_id = 0;
+        } else {
+            $namespace_id = get_mw_namespace_id($local_namespace);
+        }
         # virtual namespaces don't support allpages
         next if !defined($namespace_id) || $namespace_id < 0;
         my $mw_pages = $mediawiki->list( {

-- 
2.11.0