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signal-desktop: 1.29.6 -> 1.30.0 #78413

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merged 1 commit into from
Jan 24, 2020
Merged

signal-desktop: 1.29.6 -> 1.30.0 #78413

merged 1 commit into from
Jan 24, 2020
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primeos
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@primeos primeos commented Jan 24, 2020 •
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Changelog: https://github.com/signalapp/Signal-Desktop/releases/tag/v1.30.0

Current problem

This currently fails with the following error message:

/run/current-system/sw/bin/signal-desktop: symbol lookup error: /nix/store/8n103q18ip21zjl0xh36618291h6bkag-pango-1.44.7/lib/libpangoft2-1.0.so.0: undefined symbol: pango_font_get_hb_font

The problem seems to be that signal-desktop is looking in the wrong place as this symbol is defined in libpango-1.0.so:

$ nm -D /nix/store/8n103q18ip21zjl0xh36618291h6bkag-pango-1.44.7/lib/libpangoft2-1.0.so.0 | grep pango_font_get_hb_font
                 U pango_font_get_hb_font
$ nm -D /nix/store/8n103q18ip21zjl0xh36618291h6bkag-pango-1.44.7/lib/libpango-1.0.so | grep pango_font_get_hb_font
0000000000018220 T pango_font_get_hb_font

But the new autoPatchelfHook abstraction (#77850) seems to select the wrong shared library (a bundled one instead of the system library):

$ ldd /nix/store/jjlnp1yid3bcj8yyj0jlr2ykpy30ivnq-signal-desktop-1.30.0/bin/.signal-desktop-wrapped | grep pango
	libpangocairo-1.0.so.0 => /nix/store/jjlnp1yid3bcj8yyj0jlr2ykpy30ivnq-signal-desktop-1.30.0/lib/Signal/resources/app.asar.unpacked/node_modules/sharp/vendor/lib/libpangocairo-1.0.so.0 (0x00007f8e88264000)
	libpango-1.0.so.0 => /nix/store/jjlnp1yid3bcj8yyj0jlr2ykpy30ivnq-signal-desktop-1.30.0/lib/Signal/resources/app.asar.unpacked/node_modules/sharp/vendor/lib/libpango-1.0.so.0 (0x00007f8e88014000)
	libpangoft2-1.0.so.0 => /nix/store/8n103q18ip21zjl0xh36618291h6bkag-pango-1.44.7/lib/libpangoft2-1.0.so.0 (0x00007f8e864bc000)

Which doesn't contain the required symbol (added in version 1.44):

$ nm -D /nix/store/jjlnp1yid3bcj8yyj0jlr2ykpy30ivnq-signal-desktop-1.30.0/lib/Signal/resources/app.asar.unpacked/node_modules/sharp/vendor/lib/libpango-1.0.so.0 | grep pango_font_get_hb_font || echo "No match"
No match

@worldofpeace: Any ideas what to do here? I guess we could e.g. manually change the search path, but maybe there's a better solution for such cases.

Update (also relevant): Signal/resources/app.asar.unpacked/node_modules/sharp is new in version 1.30.0: signalapp/Signal-Desktop#3919

Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Ensured that relevant documentation is up to date
  • Fits CONTRIBUTING.md.

Sorry, something went wrong.

@ofborg ofborg bot requested review from ixmatus and equirosa January 24, 2020 14:07
@ofborg ofborg bot added 11.by: package-maintainer This PR was created by the maintainer of the package it changes 10.rebuild-darwin: 0 This PR does not cause any packages to rebuild on Darwin 10.rebuild-linux: 1-10 labels Jan 24, 2020
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But the new autoPatchelfHook abstraction (#77850) seems to select the wrong shared library (a bundled one instead of the system library):

I believe you can remove the bundled library before the patching hook runs.
And it would use the system library.

@primeos
signal-desktop: 1.29.6 -> 1.30.0

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Changelog: https://github.com/signalapp/Signal-Desktop/releases/tag/v1.30.0
@primeos primeos marked this pull request as ready for review January 24, 2020 16:51
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primeos commented Jan 24, 2020

I believe you can remove the bundled library before the patching hook runs.
And it would use the system library.

Considered doing this but it seems a bit dangerous to me. There could be problems due to incompatible versions (should normally not be a problem, but who knows...), we would need to add a lot (didn't count them, maybe it wouldn't be that bad) of libraries, and most importantly resources/app.asar (which we cannot simply patch) contains references like this one:

"libpangocairo-1.0.so":{"link":"node_modules/sharp/vendor/lib/libpangocairo-1.0.so.0.4200.4"}

which makes me assume that we cannot simply delete these files (but it might fallback to the system-libraries).

Anyway, I had a look at pkgs/build-support/setup-hooks/auto-patchelf.sh and decided to use the no-recourse option for now to avoid adding and patching those libraries.

That solution seems to work well so far as we mainly need to patch signal-desktop. But I'm open to PRs if someone finds a better solution.

@GrahamcOfBorg test signal-desktop

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primeos commented Jan 24, 2020

Should be good to go. The tests are still fine and I've also tested the super important (/s) new Create/Upload Sticker Pack feature (used a Google search for tux filetype:png imagesize:512x512 to obtain some test images).

@primeos primeos merged commit 3791770 into NixOS:master Jan 24, 2020
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