Generate animation assets from SVG

[meisenzahl]

Closes #6

[meisenzahl]

This now overlaps somewhat with #5 😅

[cassidyjames]

@meisenzahl ah I forgot to mention that I also had to recolor it to white. 😅

[cassidyjames]

We should add imagemagick to the meson dependencies here since this fails without it installed.

[danirabbit]

I can't confirm that this works. I get:

[0/1] Installing files.
Running custom install script '/home/daniel/Projects/plymouth-theme/meson/post_install.py'
convert-im6.q16: unable to open image `/usr/share/plymouth/themes/elementary/throbber-0000.png': No such file or directory @ error/blob.c/OpenBlob/2874.
convert-im6.q16: WriteBlob Failed `/usr/share/plymouth/themes/elementary/throbber-0000.png' @ error/png.c/MagickPNGErrorHandler/1641.
convert-im6.q16: unable to open image `/usr/share/plymouth/themes/elementary/throbber-0000.png': No such file or directory @ error/blob.c/OpenBlob/2874.
convert-im6.q16: no images defined `/usr/share/plymouth/themes/elementary/throbber-0000.png' @ error/convert.c/ConvertImageCommand/3258.
convert-im6.q16: unable to open image `/usr/share/plymouth/themes/elementary/throbber-0000.png': No such file or directory @ error/blob.c/OpenBlob/2874.
convert-im6.q16: no images defined `/usr/share/plymouth/themes/elementary/throbber-0000.png' @ error/convert.c/ConvertImageCommand/3258.
Traceback (most recent call last):
  File "/home/daniel/Projects/plymouth-theme/meson/post_install.py", line 52, in <module>
    shutil.copyfile(
  File "/usr/lib/python3.8/shutil.py", line 261, in copyfile
    with open(src, 'rb') as fsrc, open(dst, 'wb') as fdst:
FileNotFoundError: [Errno 2] No such file or directory: '/usr/share/plymouth/themes/elementary/throbber-0000.png'
FAILED: meson-install 
/usr/bin/meson install --no-rebuild
ninja: build stopped: subcommand failed.

[meisenzahl]

@danrabbit thanks for testing this. The last commit should fix it. Running debuild works and now only fails because of missing keys to sign the build:

...
dpkg-deb: building package 'plymouth-theme-elementary' in '../plymouth-theme-elementary_5.9.0_all.deb'.
 dpkg-genbuildinfo
 dpkg-genchanges  >../plymouth-theme-elementary_5.9.0_amd64.changes
dpkg-genchanges: info: including full source code in upload
 dpkg-source --after-build .
dpkg-buildpackage: info: full upload; Debian-native package (full source is included)
Now running lintian plymouth-theme-elementary_5.9.0_amd64.changes ...
E: plymouth-theme-elementary: no-copyright-file
W: plymouth-theme-elementary source: no-debian-copyright-in-source
W: plymouth-theme-elementary source: package-uses-deprecated-debhelper-compat-version 7
Finished running lintian.
Now signing changes and any dsc files...
 signfile dsc plymouth-theme-elementary_5.9.0.dsc elementary, Inc. <builds@elementary.io>
gpg: skipped "elementary, Inc. <builds@elementary.io>": No secret key
gpg: /tmp/debsign.J52UkWY8/plymouth-theme-elementary_5.9.0.dsc: clear-sign failed: No secret key
debsign: gpg error occurred!  Aborting....
debuild: fatal error at line 1112:
running debsign failed

[danirabbit]

Okay spent some time trying to fix this up but there's some issues still:

• It current generates 4 frames per step. This is backwards. We want to repeat the whole animation 4 times to make it go faster, not each frame 4 times which makes it slower. So we should generate symlinks 13-36 as we did before
• The rotated images are kinda blurry. I guess from the resize step? But for some reason we do get some files exported at a larger size without it. So probably need to figure out what the issue is about
• Do we even need a python script here at all? Is there a reason we can't do this in meson?