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#!/bin/bash
function show_error_msg()
{
echo "*** ERROR *** $? line $1 $0 did not complete successfully!"
echo "$ERROR_HELP"
}
ERROR_HELP=""
# Print an Error message if `set -eE` causes the script to exit due to a failed command
trap 'show_error_msg $LINENO' ERR
source dom/media/webrtc/third_party_build/use_config_env.sh
# If DEBUG_GEN is set all commands should be printed as they are executed
if [ ! "x$DEBUG_GEN" = "x" ]; then
set -x
fi
if [ "x$MOZ_LIBWEBRTC_SRC" = "x" ]; then
echo "MOZ_LIBWEBRTC_SRC is not defined, see README.md"
exit
fi
if [ -d $MOZ_LIBWEBRTC_SRC ]; then
echo "MOZ_LIBWEBRTC_SRC is $MOZ_LIBWEBRTC_SRC"
else
echo "Path $MOZ_LIBWEBRTC_SRC is not found, see README.md"
exit
fi
if [ "x$MOZ_LIBWEBRTC_BRANCH" = "x" ]; then
echo "MOZ_LIBWEBRTC_BRANCH is not defined, see README.md"
exit
fi
if [ "x$AUTO_FIX_REVERT_AS_NOOP" = "x" ]; then
AUTO_FIX_REVERT_AS_NOOP="0"
fi
find_base_commit
find_next_commit
MOZ_LIBWEBRTC_COMMIT_MSG=`cd $MOZ_LIBWEBRTC_SRC ; \
git show --name-only --oneline $MOZ_LIBWEBRTC_NEXT_BASE \
| head -1 | sed 's/[^ ]* //'`
echo "MOZ_LIBWEBRTC_BASE: $MOZ_LIBWEBRTC_BASE"
echo "MOZ_LIBWEBRTC_NEXT_BASE: $MOZ_LIBWEBRTC_NEXT_BASE"
echo "MOZ_LIBWEBRTC_COMMIT_MSG: $MOZ_LIBWEBRTC_COMMIT_MSG"
export MOZ_LIBWEBRTC_REVERT_SHA=`cd $MOZ_LIBWEBRTC_SRC ; \
git log --oneline -r $MOZ_LIBWEBRTC_BASE..$MOZ_TARGET_UPSTREAM_BRANCH_HEAD \
| grep -F "Revert \"$MOZ_LIBWEBRTC_COMMIT_MSG" \
| tail -1 | awk '{print $1;}' || true`
echo "MOZ_LIBWEBRTC_REVERT_SHA: $MOZ_LIBWEBRTC_REVERT_SHA"
if [ "x$MOZ_LIBWEBRTC_REVERT_SHA" == "x" ]; then
echo "no revert commit detected"
exit
fi
if [ "x$AUTO_FIX_REVERT_AS_NOOP" = "x1" ]; then
echo "AUTO_FIX_REVERT_AS_NOOP detected, fixing land/revert pair automatically"
bash $SCRIPT_DIR/make_upstream_revert_noop.sh
exit
fi
echo $"
The next upstream commit has a corresponding future \"Revert\" commit.
There are 2 common ways forward in this situation:
1. If you're relatively certain there will not be rebase conflicts in the
github repo ($MOZ_LIBWEBRTC_SRC), simply run:
SKIP_NEXT_REVERT_CHK=1 bash $SCRIPT_DIR/loop-ff.sh
2. The surer method for no rebase conflicts is to cherry-pick both the
next commit, and the commit that reverts the next commit onto the
bottom of our patch stack in github. This pushes the likely rebase
conflict into the future when the upstream fix is relanded, but
ensures we only have to deal with the conflict once. The following
commands will add the necessary commits to the bottom of our patch
stack in github, and leave indicator files in the home directory that
help loop-ff know when to invoke special no-op commit handling:
MOZ_LIBWEBRTC_BASE=$MOZ_LIBWEBRTC_BASE \\
MOZ_LIBWEBRTC_NEXT_BASE=$MOZ_LIBWEBRTC_NEXT_BASE \\
MOZ_LIBWEBRTC_REVERT_SHA=$MOZ_LIBWEBRTC_REVERT_SHA \\
bash $SCRIPT_DIR/make_upstream_revert_noop.sh
SKIP_NEXT_REVERT_CHK=1 bash $SCRIPT_DIR/loop-ff.sh
"
exit 1
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