feat(bundler): Add support for creating NSIS bundles on unix hosts

[FabianLars]

This should not be merged into the nsis branch directly, i just used it as a base here for a better diff view

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This adds support for building nsis setup bundles (including the updater bundle) on Linux hosts. macos should hopefully work too but i am not sure how to get makensis there.

I explicitly have only the msvc toolchain in mind when talking about windows targets, even when cross compiling so the setup is a little bit more involved:

• Install nsis, for example on ubuntu the command is sudo apt install nsis
• the default MS linker doesn't work on Linux so we also need the LLD linker, on ubuntu it's just sudo apt install lld
• add the msvc rust target rustup target add x86_64-pc-windows-msvc
• Install the windows sdks:
  cargo install xwin
  xwin --accept-license splat --output ~/xwin
• Add or modify .cargo/config.toml with these contents:

[target.x86_64-pc-windows-msvc]
linker = "lld"
rustflags = [
  "-Lnative=/home/username/xwin/crt/lib/x86_64",
  "-Lnative=/home/username/xwin/sdk/lib/um/x86_64",
  "-Lnative=/home/username/xwin/sdk/lib/ucrt/x86_64"
]

Now to the fun part:

• Install this branch from git: cargo install tauri-cli --git https://github.com/tauri-apps/tauri --branch feat/nsis-linux
• run cargo tauri build --target x86_64-pc-windows-msvc

What kind of change does this PR introduce?

• Bugfix
• Feature
• Docs
• New Binding issue #___
• Code style update
• Refactor
• Build-related changes
• Other, please describe:

Does this PR introduce a breaking change?

• Yes, and the changes were approved in issue #___
• No, nopefully not.

Checklist

• When resolving issues, they are referenced in the PR's title (e.g fix: remove a typo, closes #___, #___)
• A change file is added if any packages will require a version bump due to this PR per the instructions in the readme.
• I have added a convincing reason for adding this feature, if necessary

[amrbashir]

Other than these two nit-picks, I think this PR is ready

[FabianLars]

Should we maybe add a log output saying that cross compilation is experimental/unsupported or something? i have a feeling that saying this in the docs won't be enough x)

[FabianLars]

oh and another thing, should nsis' verbose logging be tied to the --verbose flag?

[amrbashir]

Should we maybe add a log output saying that cross compilation is experimental/unsupported or something? i have a feeling that saying this in the docs won't be enough x)

Sounds good!

oh and another thing, should nsis' verbose logging be tied to the --verbose flag?

by default, nsis is executed with maximum logging /V4, and will be presented with --verbose

[FabianLars]

by default, nsis is executed with maximum logging /V4, and will be presented with --verbose

Ah yeah you're right. i always used the --verbose flag in my tests 😂 stupid muscle memory

[lucasfernog]

covector will strip this later :( so sad

[FabianLars]

The timing of the warning may be a bit weird. It prints after cargo build, before it starts creating the bundles, so if tauri build fails at the actual compilation step already then this warning won't be seen, but at least it's not spammed away from the compiler output, and it's next to the other bundler logs.

Or maybe it needs some rephrasing so that it's more about the bundling step and not just cross-platform compilation 🤔

[lucasfernog]

For macOS:

Install nsis:
brew install nsis

Install the lld linker:
brew install llvm
(also add /opt/homebrew/opt/llvm/bin to your PATH like suggested in the install output

add the msvc rust target:
rustup target add x86_64-pc-windows-msvc

Install the windows sdks:
cargo install xwin
xwin --accept-license splat --output ~/xwin --disable-symlinks

(I had to add the disable-symlinks flag otherwise it failed to run)

Add or modify .cargo/config.toml with these contents:

[target.x86_64-pc-windows-msvc]
linker = "lld"
rustflags = [
  "-Lnative=/Users/username/xwin/crt/lib/x86_64",
  "-Lnative=/Users/username/xwin/sdk/lib/um/x86_64",
  "-Lnative=/Users/username/xwin/sdk/lib/ucrt/x86_64"
]

[FabianLars]

marked it as draft again because of missing cross-compilation support in tauri-build. Going to look how we can add it with winres/winresource.

Edit: I think i found a way to use mingw's windres with the msvc setup from above. going to create tauri-winres tomorrow and update tauri-build accordingly.

[FabianLars]

On Linux we now also need to do sudo apt install binutils-mingw-w64 - this will install the resource compiler for both 32 and 64 bit.
I'm also not 100% sure about the consequences of the winres changes, but that's why we print the warning i guess 😂

Now the problem is macOS, looks like you have to install the whole mingw-w64 toolchain :/ (brew install mingw-w64 ?)

[lucasfernog]

Still works on Linux, and also works on macOS without downloading any extra dependency @FabianLars 🥳