Make 'tauri android dev --open' find a Toolbox-installed Android Studio

cargo-mobile2 locates Studio by scanning XDG data dirs for a .desktop entry
whose Name is exactly "Android Studio", then runs its Exec line. A standalone
install writes that name; JetBrains Toolbox writes a versioned one ("Android
Studio Quail 2 2026.1.2 Patch 1"), so the lookup misses and it falls back to
running "Android Studio" as a literal command, failing with an ENOENT that
names every env var except the actual problem.

android-setup.sh now writes a hidden shim entry when no exact-name match
exists, reusing the Exec line Toolbox already generated rather than hardcoding
a path. Idempotent: a later run reports Studio as discoverable and rewrites
nothing.

README.md

@@ -178,6 +178,14 @@ build fails with `failed to read missing addr file`.
 With the dev session running, Studio's device dropdown, Device Manager
 (emulator), and debugger all work normally.
 
+> **JetBrains Toolbox users:** `--open` finds Studio by scanning XDG data dirs
+> for a `.desktop` entry whose `Name` is *exactly* `Android Studio`. Toolbox
+> writes a versioned name instead (e.g. `Android Studio Quail 2 2026.1.2 Patch
+> 1`), so the lookup misses and the launch fails with a confusing
+> `Cmd(["Android Studio"]) ... No such file or directory`. `android-setup.sh`
+> drops in a hidden shim entry (`~/.local/share/applications/android-studio.desktop`)
+> to fix this; delete that file to undo it.
+
 To build without Studio and without a dev server, use `cargo tauri android
 build` — that path needs no addr file.
 

scripts/android-setup.sh

@@ -174,7 +174,79 @@ for t in "${RUST_TARGETS[@]}"; do
     fi
 done
 
-# --- 7. The environment the build needs ------------------------------------
+# --- 7. Make Android Studio findable by its canonical XDG name -------------
+#
+# `cargo tauri android dev --open` (cargo-mobile2) locates Studio by scanning
+# XDG data dirs for a .desktop entry whose Name is *exactly* "Android Studio",
+# then running its Exec line. A standalone install writes that name, but
+# JetBrains Toolbox writes a versioned one ("Android Studio Quail 2 2026.1.2
+# Patch 1"), so the lookup misses and it falls back to running "Android Studio"
+# as a literal command — which fails with a confusing ENOENT. Drop in a hidden
+# shim entry when no exact match exists.
+
+xdg_app_dirs() {
+    echo "${XDG_DATA_HOME:-$HOME/.local/share}/applications"
+    local IFS=:
+    for d in ${XDG_DATA_DIRS:-/usr/local/share:/usr/share}; do echo "$d/applications"; done
+}
+
+has_studio_entry() {
+    local d f
+    while read -r d; do
+        [ -d "$d" ] || continue
+        for f in "$d"/*.desktop; do
+            [ -f "$f" ] || continue
+            # Name= must match exactly, and only within the [Desktop Entry] section.
+            if grep -qx 'Name=Android Studio' "$f"; then return 0; fi
+        done
+    done < <(xdg_app_dirs)
+    return 1
+}
+
+find_studio_exec() {
+    # Prefer an Exec line already written by Toolbox (it tracks the real path);
+    # otherwise fall back to well-known install locations.
+    local f exec_line d
+    for f in "${XDG_DATA_HOME:-$HOME/.local/share}"/applications/jetbrains-studio-*.desktop; do
+        [ -f "$f" ] || continue
+        exec_line="$(sed -n 's/^Exec=//p' "$f" | head -1)"
+        [ -n "$exec_line" ] && { echo "$exec_line"; return 0; }
+    done
+    for d in \
+        "$HOME/.local/share/JetBrains/Toolbox/apps/android-studio/bin/studio" \
+        "$HOME/android-studio/bin/studio.sh" \
+        /opt/android-studio/bin/studio.sh
+    do
+        [ -x "$d" ] && { echo "\"$d\" %u"; return 0; }
+    done
+    return 1
+}
+
+if has_studio_entry; then
+    info "Android Studio is discoverable by name (--open will work)"
+elif STUDIO_EXEC="$(find_studio_exec)"; then
+    APPS="${XDG_DATA_HOME:-$HOME/.local/share}/applications"
+    mkdir -p "$APPS"
+    cat > "$APPS/android-studio.desktop" <<DESKTOP
+[Desktop Entry]
+# Shim so tools that look up Android Studio by its canonical XDG name can find
+# a JetBrains Toolbox install, which names its entry with the release version.
+# Written by mtgc's scripts/android-setup.sh. Safe to delete.
+Type=Application
+Name=Android Studio
+Exec=$STUDIO_EXEC
+Categories=Development;IDE;
+Terminal=false
+StartupWMClass=jetbrains-studio
+NoDisplay=true
+DESKTOP
+    info "wrote $APPS/android-studio.desktop so 'tauri android dev --open' can find Studio"
+else
+    warn "Android Studio not found — 'cargo tauri android dev --open' won't be able to launch it."
+    warn "Run 'cargo tauri android dev' and open src-tauri/gen/android in Studio yourself."
+fi
+
+# --- 8. The environment the build needs ------------------------------------
 
 cat <<EOF