Introduce bootstrap process as a gradle task (compose-web basic Docker image)

ci/docker/compose-web/Dockerfile-Basic

@@ -44,3 +44,6 @@ RUN wget -P ~/bin https://storage.googleapis.com/git-repo-downloads/repo
 RUN chmod a+x ~/bin/repo
 RUN mkdir androidx-main 
 WORKDIR  androidx-main
+
+COPY bootstrap.sh bootstrap.sh
+RUN chmod a+x bootstrap.sh

ci/docker/compose-web/bootstrap.sh

@@ -0,0 +1,9 @@
+cd /androidx-main
+~/bin/repo init -u https://android.googlesource.com/platform/manifest \
+    -b androidx-main --depth=1 --partial-clone --clone-filter=blob:limit=10M
+~/bin/repo sync -c --no-tags --no-clone-bundle -j4
+
+mkdir -p /mnt/agent
+ln -sf /androidx-main/tools/ /mnt/agent/tools
+ln -sf /androidx-main/prebuilts/ /mnt/agent/prebuilts
+ln -sf /androidx-main/external /mnt/agent/external

ci/docker/compose-web/init.gradle

@@ -76,4 +76,8 @@ allprojects {
             url("https://maven.pkg.jetbrains.space/public/p/compose/dev")
         }
     }
+
+    task bootstrap(type: Exec) {
+        commandLine "./bootstrap.sh"
+    }
 }