1 files changed, 71 insertions, 0 deletions
diff --git a/toolkit/components/protobuf/upgrade_protobuf.sh b/toolkit/components/protobuf/upgrade_protobuf.sh
new file mode 100755
index 000000000..bdaa4ce63
--- /dev/null
+++ b/toolkit/components/protobuf/upgrade_protobuf.sh
@@ -0,0 +1,71 @@
+#!/usr/bin/env bash
+
+set -e
+
+usage() {
+    echo "Usage: upgrade_protobuf.sh path/to/protobuf"
+    echo
+    echo "    Upgrades mozilla-central's copy of the protobuf library."
+    echo
+    echo "    Get a protobuf release from here:"
+    echo "    https://github.com/google/protobuf/releases"
+}
+
+if [[ "$#" -ne 1 ]]; then
+    usage
+    exit 1
+fi
+
+PROTOBUF_LIB_PATH=$1
+
+if [[ ! -d "$PROTOBUF_LIB_PATH" ]]; then
+    echo No such directory: $PROTOBUF_LIB_PATH
+    echo
+    usage
+    exit 1
+fi
+
+realpath() {
+    if [[ $1 = /* ]]; then
+        echo "$1"
+    else
+        echo "$PWD/${1#./}"
+    fi
+}
+
+PROTOBUF_LIB_PATH=$(realpath $PROTOBUF_LIB_PATH)
+
+cd $(dirname $0)
+
+# Remove the old protobuf sources.
+rm -rf src/google/*
+
+# Add all the new protobuf sources.
+cp -r $PROTOBUF_LIB_PATH/src/google/* src/google/
+
+# Remove compiler sources.
+rm -rf src/google/protobuf/compiler
+
+# Remove test files.
+find src/google -name '*test*' | xargs rm -rf
+
+# Remove protobuf's build files.
+find src/google/ -name '.deps' | xargs rm -rf
+find src/google/ -name '.dirstamp' | xargs rm -rf
+rm -rf src/google/protobuf/SEBS
+
+# Apply custom changes for building as part of mozilla-central.
+
+cd ../../.. # Top level.
+
+echo
+echo Applying custom changes for mozilla-central. If this fails, you need to
+echo edit the 'toolkit/components/protobuf/src/google/*' sources manually and
+echo update the 'toolkit/components/protobuf/m-c-changes.patch' patch file
+echo accordingly.
+echo
+
+patch -p1 < toolkit/components/protobuf/m-c-changes.patch
+
+echo
+echo Successfully upgraded the protobuf lib!