[bug] Resource paths available only after full builds are checked in non-builds

[sftse]

Describe the bug

Some resource paths in tauri.conf.json seem to be checked in every build, even the resource paths like additional binaries that are only known after a command like cargo build --release --bins.

This tauri.conf.json currently does not permit running cargo clippy or cargo check.

{
  "$schema": "https://schema.tauri.app/config/2.0.0-rc",
  "productName": "project",
  "version": "0.1.0",
  "identifier": "project.app",
  "build": {
    "beforeDevCommand": "npm run dev",
    "devUrl": "http://localhost:1420",
    "beforeBuildCommand": "npm run build",
    "frontendDist": "../build"
  },
  "app": {
    "windows": [
      {
        "title": "project",
        "width": 800,
        "height": 600
      }
    ],
    "security": {
      "csp": null,
      "pattern": {
        "use": "brownfield"
      }
    }
  },
  "bundle": {
    "active": true,
    "targets": "all",
    "icon": [
      "icons/32x32.png",
      "icons/128x128.png",
      "icons/[email protected]",
      "icons/icon.icns",
      "icons/icon.ico"
    ],
    "externalBin": ["../../target/release/process"]
  }
}

error: failed to run custom build command for `project v0.1.0 (project/project/src-tauri)`

Caused by:
  process didn't exit successfully: `project/target/debug/build/project-e52c3da1635962f4/build-script-build` (exit status: 1)
  --- stdout
  cargo:rerun-if-changed=src/tauri.conf.json
  cargo:rerun-if-env-changed=TAURI_CONFIG
  cargo:rustc-check-cfg=cfg(desktop)
  cargo:rustc-cfg=desktop
  cargo:rustc-check-cfg=cfg(mobile)
  cargo:rerun-if-changed=project/project/src-tauri/tauri.conf.json
  cargo:rustc-env=TAURI_ANDROID_PACKAGE_NAME_APP_NAME=app
  cargo:rustc-env=TAURI_ANDROID_PACKAGE_NAME_PREFIX=<project>
  cargo:rustc-check-cfg=cfg(dev)
  cargo:rustc-cfg=dev
  cargo:PERMISSION_FILES_PATH=project/target/debug/build/project-8d94d68162fcccc9/out/app-manifest/__app__-permission-files
  cargo:rerun-if-changed=capabilities
  cargo:rerun-if-env-changed=REMOVE_UNUSED_COMMANDS
  cargo:rustc-env=TAURI_ENV_TARGET_TRIPLE=x86_64-unknown-linux-gnu
  resource path `../../target/release/process-x86_64-unknown-linux-gnu` doesn't exist

tauri-build is at 2.5.2

Reproduction

No response

Expected behavior

No response

Full tauri info output

[✔] Environment
    - OS: Artix Linux Rolling Release x86_64 (X64) (Unknown DE on tty)
    ✔ webkit2gtk-4.1: 2.50.1
    ✔ rsvg2: 2.61.2
    ✔ rustc: 1.89.0-nightly (255aa2208 2025-06-19)
    ✔ cargo: 1.89.0-nightly (2251525ae 2025-06-16)
    ✔ rustup: 1.28.2 (e4f3ad6f8 2025-04-28)
    ✔ Rust toolchain: nightly-x86_64-unknown-linux-gnu (default)
    - node: 24.9.0
    - npm: 11.6.2

[-] Packages
    - tauri 🦀: 2.9.2, (outdated, latest: 2.9.4)
    - tauri-build 🦀: 2.5.2, (outdated, latest: 2.5.3)
    - wry 🦀: 0.53.5
    - tao 🦀: 0.34.5
    - @tauri-apps/api  ⱼₛ: 2.9.0 (outdated, latest: 2.9.1)
    - @tauri-apps/cli  ⱼₛ: 2.9.4 (outdated, latest: 2.9.5)

[-] Plugins
    - tauri-plugin-shell 🦀: 2.3.3
    - @tauri-apps/plugin-shell  ⱼₛ: 2.3.3
    - tauri-plugin-dialog 🦀: 2.4.2
    - @tauri-apps/plugin-dialog  ⱼₛ: 2.4.2
    - tauri-plugin-fs 🦀: 2.4.4
    - @tauri-apps/plugin-fs  ⱼₛ: 2.4.4

[-] App
    - build-type: bundle
    - CSP: unset
    - frontendDist: ../build
    - devUrl: http://localhost:1420/
    - framework: Svelte
    - bundler: Vite

Stack trace

Additional context

No response

[ANANYA542]

Hi! I want to work on this issue could you just assign it to me !

[ANANYA542]

@FabianLars-crabnebula hey could you please review this pr and suggest any changes required