From 3d8b69cb92434ae112fb829dc1f595cc8c55152c Mon Sep 17 00:00:00 2001
From: j-hc <25510067+j-hc@users.noreply.github.com>
Date: Mon, 22 Aug 2022 13:41:38 +0300
Subject: [PATCH] ci: commit to update branch only when update available

---
 .github/workflows/build.yml | 8 +++++++-
 README.md                   | 2 +-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index cbcde79..9fa460c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -80,7 +80,9 @@ jobs:
             \"changelog\": \"$4\"
           }"
           }
+          IS_MODULE_UPDATE=0
           if [ -n "${{ steps.get_output.outputs.YT_OUTPUT }}" ]; then
+            IS_MODULE_UPDATE=1
             YT_VER=$(echo "${{ steps.get_output.outputs.BUILD_LOG }}" | sed -n 's/.*YouTube version: \(.*\)/\1/p')
             YT_DLURL="$GITHUB_SERVER_URL/$GITHUB_REPOSITORY/releases/download/${{ steps.next_ver_code.outputs.NEXT_VER_CODE}}/${{ steps.get_output.outputs.YT_OUTPUT }}"
             UPDATE_YT_JSON=$(get_update_json "$YT_VER" "${{ steps.next_ver_code.outputs.NEXT_VER_CODE}}" "$YT_DLURL" "$CHANGELOG_URL")
@@ -88,6 +90,7 @@ jobs:
           fi
 
           if [ -n "${{ steps.get_output.outputs.MUSIC_OUTPUT_ARM64 }}" ]; then
+            IS_MODULE_UPDATE=1
             MUSIC_VER=$(echo "${{ steps.get_output.outputs.BUILD_LOG }}" | sed -n 's/.*Music (arm64-v8a) version: \(.*\)/\1/p')
             MUSIC_ARM64_DLURL="$GITHUB_SERVER_URL/$GITHUB_REPOSITORY/releases/download/${{ steps.next_ver_code.outputs.NEXT_VER_CODE}}/${{ steps.get_output.outputs.MUSIC_OUTPUT_ARM64 }}"
             UPDATE_MUSIC_ARM64_JSON=$(get_update_json "$MUSIC_VER" "${{ steps.next_ver_code.outputs.NEXT_VER_CODE }}" "$MUSIC_ARM64_DLURL" "$CHANGELOG_URL")
@@ -95,15 +98,18 @@ jobs:
           fi
 
           if [ -n "${{ steps.get_output.outputs.MUSIC_OUTPUT_ARM }}" ]; then
+            IS_MODULE_UPDATE=1
             MUSIC_VER=$(echo "${{ steps.get_output.outputs.BUILD_LOG }}" | sed -n 's/.*Music (arm-v7a) version: \(.*\)/\1/p')
             MUSIC_ARM_DLURL="$GITHUB_SERVER_URL/$GITHUB_REPOSITORY/releases/download/${{ steps.next_ver_code.outputs.NEXT_VER_CODE}}/${{ steps.get_output.outputs.MUSIC_OUTPUT_ARM }}"
             UPDATE_MUSIC_ARM_JSON=$(get_update_json "$MUSIC_VER" "${{ steps.next_ver_code.outputs.NEXT_VER_CODE }}" "$MUSIC_ARM_DLURL" "$CHANGELOG_URL")
             echo "$UPDATE_MUSIC_ARM_JSON" >music-update-arm-v7a.json
           fi
+          echo ::set-output name=IS_MODULE_UPDATE::$IS_MODULE_UPDATE
 
       - uses: stefanzweifel/git-auto-commit-action@v4
+        if: ${{ steps.update_config.outputs.IS_MODULE_UPDATE == 1 }}
         with:
           branch: update
           skip_checkout: true
           file_pattern: latest_build.md *.json
-          commit_message: Bump ${{ steps.next_ver_code.outputs.NEXT_VER_CODE }}
+          commit_message: Bump version ${{ steps.next_ver_code.outputs.NEXT_VER_CODE }}
diff --git a/README.md b/README.md
index 8e139bf..9f9229b 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ The modules support Magisk update which means you will receive updates from your
 ### **Note that the [CI workflow](../../actions/workflows/ci.yml) is scheduled to build the modules and APKs everyday if there is a change. You may want to disable it.**
 
 # Building Locally
-Make sure you have [Azul Zulu distribution of OpenJDK 17](https://www.azul.com/downloads/?version=java-17-lts&os=linux&architecture=x86-64-bit&package=jdk) and xdelta3 installed. Then run:
+Make sure you have OpenJDK 17 and xdelta3 installed. Then run:
 
 ```console
 $ git clone --recurse-submodules https://github.com/j-hc/revanced-magisk-module