blog/data/2018-07-09-debian-dep11.txt

   1 Title: What is the most supported MIME type in Debian in 2018?
   2 Tags: english, debian, isenkram
   3 Date: 2018-07-09 08:05
   4
   5 <p>Five years ago,
   6 <a href="http://people.skolelinux.org/pere/blog/What_is_the_most_supported_MIME_type_in_Debian_.html">I
   7 measured what the most supported MIME type in Debian was</a>, by
   8 analysing the desktop files in all packages in the archive.  Since
   9 then, the DEP-11 AppStream system has been put into production, making
  10 the task a lot easier.  This made me want to repeat the measurement,
  11 to see how much things changed.  Here are the new numbers, for
  12 unstable only this time:
  13
  14 <p><strong>Debian Unstable:</strong></p>
  15
  16 <pre>
  17   count MIME type
  18   ----- -----------------------
  19      56 image/jpeg
  20      55 image/png
  21      49 image/tiff
  22      48 image/gif
  23      39 image/bmp
  24      38 text/plain
  25      37 audio/mpeg
  26      34 application/ogg
  27      33 audio/x-flac
  28      32 audio/x-mp3
  29      30 audio/x-wav
  30      30 audio/x-vorbis+ogg
  31      29 image/x-portable-pixmap
  32      27 inode/directory
  33      27 image/x-portable-bitmap
  34      27 audio/x-mpeg
  35      26 application/x-ogg
  36      25 audio/x-mpegurl
  37      25 audio/ogg
  38      24 text/html
  39 </pre>
  40
  41 <p>The list was created like this using a sid chroot: "cat
  42 /var/lib/apt/lists/*sid*_dep11_Components-amd64.yml.gz| zcat | awk '/^
  43 - \S+\/\S+$/ {print $2 }' | sort | uniq -c | sort -nr | head -20"</p>
  44
  45 <p>It is interesting to see how image formats have passed text/plain
  46 as the most announced supported MIME type.  These days, thanks to the
  47 AppStream system, if you run into a file format you do not know, and
  48 want to figure out which packages support the format, you can find the
  49 MIME type of the file using "file --mime &lt;filename&gt;", and then
  50 look up all packages announcing support for this format in their
  51 AppStream metadata (XML or .desktop file) using "appstreamcli
  52 what-provides mimetype &lt;mime-type&gt;.  For example if you, like
  53 me, want to know which packages support inode/directory, you can get a
  54 list like this:</p>
  55
  56 <p><blockquote><pre>
  57 % appstreamcli what-provides mimetype inode/directory | grep Package: | sort
  58 Package: anjuta
  59 Package: audacious
  60 Package: baobab
  61 Package: cervisia
  62 Package: chirp
  63 Package: dolphin
  64 Package: doublecmd-common
  65 Package: easytag
  66 Package: enlightenment
  67 Package: ephoto
  68 Package: filelight
  69 Package: gwenview
  70 Package: k4dirstat
  71 Package: kaffeine
  72 Package: kdesvn
  73 Package: kid3
  74 Package: kid3-qt
  75 Package: nautilus
  76 Package: nemo
  77 Package: pcmanfm
  78 Package: pcmanfm-qt
  79 Package: qweborf
  80 Package: ranger
  81 Package: sirikali
  82 Package: spacefm
  83 Package: spacefm
  84 Package: vifm
  85 %
  86 </pre></blockquote></p>
  87
  88 <p>Using the same method, I can quickly discover that the Sketchup file
  89 format is not yet supported by any package in Debian:</p>
  90
  91 <p><blockquote><pre>
  92 % appstreamcli what-provides mimetype  application/vnd.sketchup.skp
  93 Could not find component providing 'mimetype::application/vnd.sketchup.skp'.
  94 %
  95 </pre></blockquote></p>
  96
  97 <p>Yesterday I used it to figure out which packages support the STL 3D
  98 format:</p>
  99
 100 <p><blockquote><pre>
 101 % appstreamcli what-provides mimetype  application/sla|grep Package
 102 Package: cura
 103 Package: meshlab
 104 Package: printrun
 105 %
 106 </pre></blockquote></p>
 107
 108 <p>PS: A new version of Cura was uploaded to Debian yesterday.</p>
 109
 110 <p>As usual, if you use Bitcoin and want to show your support of my
 111 activities, please send Bitcoin donations to my address
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