add dart pubcache support

Author: peeweep

.github/workflows/generator.yml

@@ -15,6 +15,7 @@ on:
         - javascript
         - javascript(pnpm)
         - rust
+        - dart
 
       REPO:
         description: "github repo name: XTLS/Xray-core"
@@ -65,7 +66,7 @@ jobs:
           git config --global user.name "github-actions[bot]"
           git tag --delete ${P} || echo yes
 
-      - name: update go version
+      - name: Setup go
         if: inputs.LANG == 'golang'
         uses: actions/setup-go@v6
         with:
@@ -135,6 +136,25 @@ jobs:
           cd "input/${WORKDIR}"
           pycargoebuild --crate-tarball --distdir /tmp/ --license-mapping /tmp/license-mapping.conf
 
+      - name: Setup dart
+        if: inputs.LANG == 'dart'
+        uses: dart-lang/setup-dart@v1
+        with:
+          sdk: stable
+
+      - name: Generate dart pubcache
+        if: inputs.LANG == 'dart'
+        env:
+          P: ${{ inputs.P }}
+          WORKDIR: ${{ inputs.WORKDIR }}
+          PUB_CACHE: ${{ inputs.P }}/pubcache
+        run: |
+          git tag ${P} -m "${P}-dart.tar.xz"
+          cd "input/${WORKDIR}"
+          dart --disable-analytics
+          dart pub get
+          tar --create --auto-compress --file /tmp/${P}-pubcache.tar.xz ${{ inputs.P }}
+
       - name: push tag
         uses: ad-m/github-push-action@master
         with:
@@ -182,3 +202,11 @@ jobs:
             /tmp/*-crates.tar.xz
             input/${{ inputs.WORKDIR }}/*.ebuild
           tag_name: ${{ inputs.P }}
+
+      - name: upload rust crates to release artifaces
+        if: inputs.LANG == 'dart'
+        uses: softprops/action-gh-release@v2
+        with:
+          files: |
+            /tmp/*-pubcache.tar.xz
+          tag_name: ${{ inputs.P }}