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Fix standalone release build (custom-protocol feature was never enabled)

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cargo build --release alone doesn't produce a working standalone binary in
Tauri v2 — embedding the frontend vs. hitting devUrl at runtime is gated by
the tauri/custom-protocol Cargo feature, not the debug/release profile.
The scaffold never declared it, so even release builds tried to connect to
localhost:1420. Added the standard default-on custom-protocol feature
(cargo tauri dev strips it via --no-default-features for dev builds); a
plain `cargo build --release --locked` in src/ now produces a real
standalone binary with no dev-server dependency.

Also fixes vite.config.js's file-watch ignore pattern, left stale by the
src-tauri -> src rename: a bare "**/src/**" glob would have also matched
frontend/src itself, so it's now an absolute path scoped to the Rust
project dir specifically.
This commit is contained in:
Breadway 2026-07-23 09:52:55 +08:00
parent 40da0b3517
commit f5d70476f0
2 changed files with 19 additions and 2 deletions
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12
frontend/vite.config.js
View file

@ -1,9 +1,17 @@
import { fileURLToPath } from "node:url";
import path from "node:path";
import { defineConfig } from "vite";
import { sveltekit } from "@sveltejs/kit/vite";
// @ts-expect-error process is a nodejs global
const host = process.env.TAURI_DEV_HOST;
// The Rust/Tauri project dir (../src relative to this file) — an absolute
// path, not a bare "**/src/**" glob, because this repo has two directories
// named `src`: this one (frontend/src, which must be watched for HMR) and
// the sibling Rust crate (../src, which must not be).
const rustProjectDir = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "../src");
// https://vite.dev/config/
export default defineConfig(async () => ({
plugins: [sveltekit()],
@ -25,8 +33,8 @@ export default defineConfig(async () => ({
}
: undefined,
watch: {
// 3. tell Vite to ignore watching `src-tauri`
ignored: ["**/src-tauri/**"],
// 3. tell Vite to ignore watching the Tauri/Rust project dir
ignored: [`${rustProjectDir}/**`],
},
},
}));

9
src/Cargo.toml
View file

@ -17,6 +17,15 @@ crate-type = ["staticlib", "cdylib", "rlib"]
[build-dependencies]
tauri-build = { version = "2", features = [] }
[features]
# Default-on so a plain `cargo build --release` produces a standalone binary
# that embeds the built frontend instead of loading it from `devUrl` —
# `cargo tauri dev` strips this back off via `--no-default-features` so dev
# builds keep talking to the Vite dev server. See
# https://v2.tauri.app/reference/cargo-features/#custom-protocol
default = ["custom-protocol"]
custom-protocol = ["tauri/custom-protocol"]
[dependencies]
tauri = { version = "2", features = ["protocol-asset"] }
tauri-plugin-opener = "2"