update readme

Fix temp folder handling on windows

.github/workflows/workflow.yml

@@ -1,12 +1,19 @@
 name: Main workflow
-on: [push]
+on: 
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
 jobs:
   test_channel:
     runs-on: ${{ matrix.operating-system }}
     strategy:
       matrix:
         operating-system: [ubuntu-latest, windows-latest, macos-latest]
-        channel: [stable, beta, dev]
+        channel: [stable, beta]
     steps:
     - name: Checkout
       uses: actions/checkout@v2

README.md

@@ -23,7 +23,7 @@ steps:
 - uses: actions/checkout@v2
 - uses: subosito/flutter-action@v2
   with:
-    channel: 'stable' # or: 'beta', 'dev' or 'master'
+    channel: 'stable' # or: 'beta' or 'master'
 - run: flutter --version
 ```
 
@@ -108,7 +108,7 @@ jobs:
      - uses: actions/checkout@v2
      - uses: subosito/flutter-action@v2
        with:
-         channel: beta
+         channel: 'beta'
      - run: flutter config --enable-windows-desktop
      - run: flutter build windows
 ```
@@ -123,7 +123,7 @@ jobs:
      - uses: actions/checkout@v2
      - uses: subosito/flutter-action@v2
        with:
-         channel: beta
+         channel: 'beta'
      - run: |
         sudo apt-get update -y
         sudo apt-get install -y ninja-build libgtk-3-dev
@@ -141,7 +141,7 @@ jobs:
      - uses: actions/checkout@v2
      - uses: subosito/flutter-action@v2
        with:
-         channel: beta
+         channel: 'beta'
      - run: flutter config --enable-macos-desktop
      - run: flutter build macos
 ```
@@ -153,8 +153,8 @@ steps:
 - uses: actions/checkout@v2
 - uses: subosito/flutter-action@v2
   with:
-    flutter-version: 2.5.0
-    channel: stable
+    flutter-version: '2.5.0'
+    channel: 'stable'
     cache: true
     cache-key: flutter # optional, change this to force refresh cache
     cache-path: ${{ runner.tool_cache }}/flutter # optional, change this to specify the cache path

setup.sh

@@ -48,15 +48,21 @@ get_version_manifest() {
 download_archive() {
   archive_url="$MANIFEST_BASE_URL/$1"
   archive_name=$(basename $1)
-  archive_local="$HOME/$archive_name"
+  archive_local="$RUNNER_TEMP/$archive_name"
 
   curl --connect-timeout 15 --retry 5 $archive_url >$archive_local
 
+  # Create the target folder
+  mkdir -p "$2"
+
   if [[ $archive_name == *zip ]]; then
-    unzip -q -o "$archive_local" -d "$HOME"
-    shopt -s dotglob
-    mv ${HOME}/flutter/* "$2"
-    shopt -u dotglob
+    unzip -q -o "$archive_local" -d "$RUNNER_TEMP"
+    # Remove the folder again so that the move command can do a simple rename
+    # instead of moving the content into the target folder.
+    # This is a little bit of a hack since the "mv --no-target-directory"
+    # linux option is not available here
+    rm -r "$2"
+    mv ${RUNNER_TEMP}/flutter "$2"
   else
     tar xf "$archive_local" -C "$2" --strip-components=1
   fi
@@ -90,8 +96,6 @@ else
   PUB_CACHE="${HOME}/.pub-cache"
 fi
 
-mkdir -p "$SDK_CACHE"
-
 if [[ ! -x "${SDK_CACHE}/bin/flutter" ]]; then
   if [[ $CHANNEL == master ]]; then
     git clone -b master https://github.com/flutter/flutter.git "$SDK_CACHE"