1 files changed, 89 insertions, 0 deletions
diff --git a/dom/media/webrtc/third_party_build/use_config_env.sh b/dom/media/webrtc/third_party_build/use_config_env.sh
new file mode 100644
index 0000000000..bd78dc7e0e
--- /dev/null
+++ b/dom/media/webrtc/third_party_build/use_config_env.sh
@@ -0,0 +1,89 @@
+#!/bin/bash
+
+# Assume that if STATE_DIR is already defined, we do not need to
+# execute this file again.
+if [ "x$STATE_DIR" != "x" ]; then
+  # no need to run script since we've already run
+  return
+fi
+
+export SCRIPT_DIR="dom/media/webrtc/third_party_build"
+# first, make sure we're running from the top of moz-central repo
+if [ ! -d $SCRIPT_DIR ]; then
+  echo "Error: unable to find directory $SCRIPT_DIR"
+  exit 1
+fi
+
+# Should we tie the location of the STATE_DIR to the path
+# in MOZ_CONFIG_PATH?  Probably.
+export STATE_DIR=`pwd`/.moz-fast-forward
+export LOG_DIR=$STATE_DIR/logs
+export TMP_DIR=$STATE_DIR/tmp
+
+if [ ! -d $STATE_DIR ]; then
+  echo "Creating missing $STATE_DIR"
+  mkdir -p $STATE_DIR
+  if [ ! -d $STATE_DIR ]; then
+    echo "error: unable to find (or create) $STATE_DIR"
+    exit 1
+  fi
+fi
+echo "Using STATE_DIR=$STATE_DIR"
+
+if [ ! -d $LOG_DIR ]; then
+  echo "Creating missing $LOG_DIR"
+  mkdir -p $LOG_DIR
+  if [ ! -d $LOG_DIR ]; then
+    echo "error: unable to find (or create) $LOG_DIR"
+    exit 1
+  fi
+fi
+echo "Using LOG_DIR=$LOG_DIR"
+
+if [ ! -d $TMP_DIR ]; then
+  echo "Creating missing $TMP_DIR"
+  mkdir -p $TMP_DIR
+  if [ ! -d $TMP_DIR ]; then
+    echo "error: unable to find (or create) $TMP_DIR"
+    exit 1
+  fi
+fi
+echo "Using TMP_DIR=$TMP_DIR"
+
+# Allow user to override default path to config_env
+if [ "x$MOZ_CONFIG_PATH" = "x" ]; then
+  MOZ_CONFIG_PATH=$STATE_DIR/config_env
+  echo "Using default MOZ_CONFIG_PATH=$MOZ_CONFIG_PATH"
+fi
+
+if [ ! -f $MOZ_CONFIG_PATH ]; then
+  echo "Creating default config file at $MOZ_CONFIG_PATH"
+  cp $SCRIPT_DIR/default_config_env $MOZ_CONFIG_PATH
+fi
+source $MOZ_CONFIG_PATH
+
+
+function find_base_commit()
+{
+  # read the last line of README.moz-ff-commit to retrieve our current base
+  # commit in moz-libwebrtc
+  MOZ_LIBWEBRTC_BASE=`tail -1 third_party/libwebrtc/README.moz-ff-commit`
+  echo "prelim MOZ_LIBWEBRTC_BASE: $MOZ_LIBWEBRTC_BASE"
+  # if we've advanced into a chrome release branch, we need to adjust the
+  # MOZ_LIBWEBRTC_BASE to the last common commit so we can now advance up
+  # the trunk commits.
+  MOZ_LIBWEBRTC_BASE=`cd $MOZ_LIBWEBRTC_SRC ; git merge-base $MOZ_LIBWEBRTC_BASE $MOZ_TARGET_UPSTREAM_BRANCH_HEAD`
+  # now make it a short hash
+  MOZ_LIBWEBRTC_BASE=`cd $MOZ_LIBWEBRTC_SRC ; git rev-parse --short $MOZ_LIBWEBRTC_BASE`
+  echo "adjusted MOZ_LIBWEBRTC_BASE: $MOZ_LIBWEBRTC_BASE"
+}
+export -f find_base_commit
+
+function find_next_commit()
+{
+  # identify the next commit above our current base commit
+  MOZ_LIBWEBRTC_NEXT_BASE=`cd $MOZ_LIBWEBRTC_SRC ; \
+  git log --oneline --ancestry-path $MOZ_LIBWEBRTC_BASE^..$MOZ_TARGET_UPSTREAM_BRANCH_HEAD \
+   | tail -2 | head -1 | awk '{print $1;}'`
+}
+export -f find_next_commit