Add script to freeze framework manifest.

Test: freeze.sh 5
Bug: 37226359

Change-Id: I00787c257e59050f2d707706051bd18407ac6ed7

1 files changed, 42 insertions, 0 deletions

diff --git a/vintfdata/freeze.sh b/vintfdata/freeze.sh
new file mode 100755
index 0000000..a624ee3
--- /dev/null
+++ b/vintfdata/freeze.sh
@@ -0,0 +1,42 @@
+#!/bin/bash
+
+mydir="$(dirname $0)"
+
+function freeze() {
+  [[ $# == 1 ]] || {
+    echo "usage: freeze.sh <level>"
+    echo "e.g. To freeze framework manifest for Android R, run:"
+    echo "  freeze.sh 5"
+    return 1
+  }
+  local level="$1"
+  [[ "${ANDROID_BUILD_TOP}" ]] || {
+    echo "ANDROID_BUILD_TOP is not set; did you run envsetup.sh?"
+    return 1
+  }
+  [[ "${ANDROID_HOST_OUT}" ]] || {
+    echo "ANDROID_HOST_OUT is not set; did you run envsetup.sh?"
+    return 1
+  }
+
+  local modules_to_build=check-vintf-all
+  echo "Building ${modules_to_build}"
+  "${ANDROID_BUILD_TOP}/build/soong/soong_ui.bash" --build-mode --all-modules --dir="$(pwd)" ${modules_to_build} || {
+    echo "${modules_to_build} failed. Backwards compatibility might be broken."
+    echo "Check framework manifest changes. If this is intentional, run "
+    echo "  \`vintffm --update\` with appropriate options to update frozen files."
+    return 1
+  }
+
+  echo "Updating level ${level}"
+  "${ANDROID_HOST_OUT}/bin/vintffm" --update --level "${level}" --dirmap "/system:${ANDROID_PRODUCT_OUT}/system" "${mydir}/frozen" || return 1
+
+  local files_to_diff="$(printf "${mydir}/frozen/%s\n" $(ls -1 -t -r ${mydir}/frozen | xargs -I{} basename {} | grep -B1 "${level}.xml"))"
+
+  echo
+  echo "Summary of changes:"
+  echo diff ${files_to_diff}
+  diff ${files_to_diff} || true
+}
+
+freeze $@