tauri upgrade problem

[ozgunozerk]

When we try to upgrade tauri dependency in subspace-desktop, it cannot due to a conflict between substrate and tauri dependencies.
Namely, zstd and zstd-safe.

Here is the detailed error when we change tauri dependencies to the latest one rc-4 in the cargo.toml of subspace-desktop:

cargo check
    Updating crates.io index
error: failed to select a version for `zstd-safe`.
    ... required by package `zstd v0.9.0+zstd.1.5.0`
    ... which satisfies dependency `zstd = "^0.9.0"` of package `sp-maybe-compressed-blob v4.1.0-dev (https://github.com/paritytech/substrate?rev=e6def65920d30029e42d498cb07cec5dd433b927#e6def659)`
    ... which satisfies git dependency `sp-maybe-compressed-blob` (locked to 4.1.0-dev) of package `polkadot-node-collation-generation v0.9.13 (https://github.com/subspace/subspace?rev=042302ed2c86abd765be56c93b6f3ee535a1573a#042302ed)`
    ... which satisfies git dependency `polkadot-node-collation-generation` (locked to 0.9.13) of package `subspace-service v0.1.0 (https://github.com/subspace/subspace?rev=042302ed2c86abd765be56c93b6f3ee535a1573a#042302ed)`
    ... which satisfies git dependency `subspace-service` (locked to 0.1.0) of package `subspace-desktop v0.2.1 (/Users/ozgunozerk/IdeaProjects/subspace-desktop/src-tauri)`
versions that meet the requirements `=4.1.1` are: 4.1.1+zstd.1.5.0

all possible versions conflict with previously selected packages.

  previously selected package `zstd-safe v4.1.4+zstd.1.5.2`
    ... which satisfies dependency `zstd-safe = "=4.1.4"` of package `zstd v0.10.0+zstd.1.5.2`
    ... which satisfies dependency `zstd = "^0.10"` of package `tauri-codegen v1.0.0-rc.3`
    ... which satisfies dependency `tauri-codegen = "^1.0.0-rc.3"` of package `tauri-macros v1.0.0-rc.3`
    ... which satisfies dependency `tauri-macros = "^1.0.0-rc.3"` of package `tauri v1.0.0-rc.4`
    ... which satisfies dependency `tauri = "^1.0.0-rc.4"` of package `subspace-desktop v0.2.1 (/Users/ozgunozerk/IdeaProjects/subspace-desktop/src-tauri)`

failed to select a version for `zstd-safe` which could resolve this conflict

Fixes:

• change upstream zstd to not fix zstd-safe version (Please don't require exact version of zstd-safe gyscos/zstd-rs#147)
• upgrade zstd in Tauri
• upgrade zstd in Substrate

[ImmaZoni]

Looks like the tauri folks are talking about even replacing zstd entirely, as per this discussion here - tauri-apps/tauri#3571. They will be potentially replacing it with brotli.