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[homepage.git] / blog / archive / 2018 / 07 / 07.rss

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                 <link>http://people.skolelinux.org/pere/blog/</link>
 
        
+       <item>
+               <title>What is the most supported MIME type in Debian in 2018?</title>
+               <link>http://people.skolelinux.org/pere/blog/What_is_the_most_supported_MIME_type_in_Debian_in_2018_.html</link>        
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/What_is_the_most_supported_MIME_type_in_Debian_in_2018_.html</guid>
+                <pubDate>Mon, 9 Jul 2018 08:05:00 +0200</pubDate>
+               <description>&lt;p&gt;Five years ago,
+&lt;a href=&quot;http://people.skolelinux.org/pere/blog/What_is_the_most_supported_MIME_type_in_Debian_.html&quot;&gt;I
+measured what the most supported MIME type in Debian was&lt;/a&gt;, by
+analysing the desktop files in all packages in the archive.  Since
+then, the DEP-11 AppStream system has been put into production, making
+the task a lot easier.  This made me want to repeat the measurement,
+to see how much things changed.  Here are the new numbers, for
+unstable only this time:
+
+&lt;p&gt;&lt;strong&gt;Debian Unstable:&lt;/strong&gt;&lt;/p&gt;
+
+&lt;pre&gt;
+  count MIME type
+  ----- -----------------------
+     56 image/jpeg
+     55 image/png
+     49 image/tiff
+     48 image/gif
+     39 image/bmp
+     38 text/plain
+     37 audio/mpeg
+     34 application/ogg
+     33 audio/x-flac
+     32 audio/x-mp3
+     30 audio/x-wav
+     30 audio/x-vorbis+ogg
+     29 image/x-portable-pixmap
+     27 inode/directory
+     27 image/x-portable-bitmap
+     27 audio/x-mpeg
+     26 application/x-ogg
+     25 audio/x-mpegurl
+     25 audio/ogg
+     24 text/html
+&lt;/pre&gt;
+
+&lt;p&gt;The list was created like this using a sid chroot: &quot;cat
+/var/lib/apt/lists/*sid*_dep11_Components-amd64.yml.gz| zcat | awk &#39;/^
+- \S+\/\S+$/ {print $2 }&#39; | sort | uniq -c | sort -nr | head -20&quot;&lt;/p&gt;
+
+&lt;p&gt;It is interesting to see how image formats have passed text/plain
+as the most announced supported MIME type.  These days, thanks to the
+AppStream system, if you run into a file format you do not know, and
+want to figure out which packages support the format, you can find the
+MIME type of the file using &quot;file --mime &amp;lt;filename&amp;gt;&quot;, and then
+look up all packages announcing support for this format in their
+AppStream metadata (XML or .desktop file) using &quot;appstreamcli
+what-provides mimetype &amp;lt;mime-type&amp;gt;.  For example if you, like
+me, want to know which packages support inode/directory, you can get a
+list like this:&lt;/p&gt;
+
+&lt;p&gt;&lt;blockquote&gt;&lt;pre&gt;
+% appstreamcli what-provides mimetype inode/directory | grep Package: | sort
+Package: anjuta
+Package: audacious
+Package: baobab
+Package: cervisia
+Package: chirp
+Package: dolphin
+Package: doublecmd-common
+Package: easytag
+Package: enlightenment
+Package: ephoto
+Package: filelight
+Package: gwenview
+Package: k4dirstat
+Package: kaffeine
+Package: kdesvn
+Package: kid3
+Package: kid3-qt
+Package: nautilus
+Package: nemo
+Package: pcmanfm
+Package: pcmanfm-qt
+Package: qweborf
+Package: ranger
+Package: sirikali
+Package: spacefm
+Package: spacefm
+Package: vifm
+%
+&lt;/pre&gt;&lt;/blockquote&gt;&lt;/p&gt;
+
+&lt;p&gt;Using the same method, I can quickly discover that the Sketchup file
+format is not yet supported by any package in Debian:&lt;/p&gt;
+
+&lt;p&gt;&lt;blockquote&gt;&lt;pre&gt;
+% appstreamcli what-provides mimetype  application/vnd.sketchup.skp
+Could not find component providing &#39;mimetype::application/vnd.sketchup.skp&#39;.
+%
+&lt;/pre&gt;&lt;/blockquote&gt;&lt;/p&gt;
+
+&lt;p&gt;Yesterday I used it to figure out which packages support the STL 3D
+format:&lt;/p&gt;
+
+&lt;p&gt;&lt;blockquote&gt;&lt;pre&gt;
+% appstreamcli what-provides mimetype  application/sla|grep Package
+Package: cura
+Package: meshlab
+Package: printrun
+%
+&lt;/pre&gt;&lt;/blockquote&gt;&lt;/p&gt;
+
+&lt;p&gt;PS: A new version of Cura was uploaded to Debian yesterday.&lt;/p&gt;
+
+&lt;p&gt;As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+&lt;b&gt;&lt;a href=&quot;bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&quot;&gt;15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&lt;/a&gt;&lt;/b&gt;.&lt;/p&gt;
+</description>
+       </item>
+       
        <item>
                <title>Debian APT upgrade without enough free space on the disk...</title>
                <link>http://people.skolelinux.org/pere/blog/Debian_APT_upgrade_without_enough_free_space_on_the_disk___.html</link>