[MacPorts] #29730: tortoisehg: add launcher icon and gui ssh-askpass

[MacPorts]

#29730: tortoisehg: add launcher icon and gui ssh-askpass
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 Reporter:  shiena.jp@…          |       Owner:  guido@…                 
     Type:  enhancement          |      Status:  new                     
 Priority:  Normal               |   Milestone:                          
Component:  ports                |     Version:                          
 Keywords:  haspatch             |        Port:  tortoisehg              
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Comment(by pixilla@…):

 I haven't found a good svg converter but there is a 368 × 220 png that
 makes a decent icon. We have not yet added padding to makeicns.
 ImageMagick's convert can be used in the mean time. Something like this
 should do it.
 {{{
 depends_build    port:makeicns port:ImageMagick
 post-extract {
     system "convert ${worksrcpath}/doc/source/figures/thg_logo_pdf.png \
         -background transparent \
         -gravity center \
         -resize 512x512 \
         -extent 512x512 \
         ${worksrcpath}/tortoisehg.png
     system "makeicns -in ${worksrcpath}/tortoisehg.png \
         -out ${worksrcpath}/tortoisehg.icns"
 }
 }}}

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Ticket URL: <https://trac.macports.org/ticket/29730#comment:3>
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