verify_vendoring.sh

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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

export HGPLAIN=1

echo "MOZ_LIBWEBRTC_SRC: $MOZ_LIBWEBRTC_SRC"

echo "MOZ_LIBWEBRTC_BRANCH: $MOZ_LIBWEBRTC_BRANCH"

echo "MOZ_FASTFORWARD_BUG: $MOZ_FASTFORWARD_BUG"

CURRENT_SHA=`hg id -r . | awk '{ print $1; }'`

echo "CURRENT_SHA: $CURRENT_SHA"

# we grab the entire firstline description for convenient logging

LAST_PATCHSTACK_UPDATE_COMMIT=`hg log -r ::. --template "{node|short} {desc|firstline}\n" \

    --include "third_party/libwebrtc/moz-patch-stack/*.patch" | tail -1`

echo "LAST_PATCHSTACK_UPDATE_COMMIT: $LAST_PATCHSTACK_UPDATE_COMMIT"

LAST_PATCHSTACK_UPDATE_COMMIT_SHA=`echo $LAST_PATCHSTACK_UPDATE_COMMIT \

    | awk '{ print $1; }'`

echo "LAST_PATCHSTACK_UPDATE_COMMIT_SHA: $LAST_PATCHSTACK_UPDATE_COMMIT_SHA"

# grab the oldest, non "Vendor from libwebrtc" line

OLDEST_CANDIDATE_COMMIT=`hg log --template "{node|short} {desc|firstline}\n" \

    -r $LAST_PATCHSTACK_UPDATE_COMMIT_SHA::. \

    | grep -v "Vendor libwebrtc from" | head -1`

echo "OLDEST_CANDIDATE_COMMIT: $OLDEST_CANDIDATE_COMMIT"

OLDEST_CANDIDATE_SHA=`echo $OLDEST_CANDIDATE_COMMIT \

    | awk '{ print $1; }'`

echo "OLDEST_CANDIDATE_SHA: $OLDEST_CANDIDATE_SHA"

EXTRACT_COMMIT_RANGE="{start-commit-sha}::."

if [ "x$CURRENT_SHA" != "x$OLDEST_CANDIDATE_SHA" ]; then

  EXTRACT_COMMIT_RANGE="$OLDEST_CANDIDATE_SHA::."

  echo "EXTRACT_COMMIT_RANGE: $EXTRACT_COMMIT_RANGE"

fi

# After this point:

# * eE: All commands should succeed.

# * u: All variables should be defined before use.

# * o pipefail: All stages of all pipes should succeed.

set -eEuo pipefail

./mach python $SCRIPT_DIR/vendor-libwebrtc.py \

        --from-local $MOZ_LIBWEBRTC_SRC \

        --commit $MOZ_LIBWEBRTC_BRANCH \

        libwebrtc

hg revert -q \

   --include "third_party/libwebrtc/**moz.build" \

   --include "third_party/libwebrtc/README.mozilla" \

   third_party/libwebrtc

ERROR_HELP=$"

***

There are changes detected after vendoring libwebrtc from our local copy

of the git repo containing our patch-stack:

$MOZ_LIBWEBRTC_SRC

Typically this is due to changes made in mercurial to files residing

under third_party/libwebrtc that have not been reflected in

moz-libwebrtc git repo's patch-stack.

The following commands should help remedy the situation:

  ./mach python $SCRIPT_DIR/extract-for-git.py $EXTRACT_COMMIT_RANGE

  mv mailbox.patch $MOZ_LIBWEBRTC_SRC

  (cd $MOZ_LIBWEBRTC_SRC && \\

   git am mailbox.patch)

After adding the new changes from mercurial to the moz-libwebrtc

patch stack, you should re-run this command to verify vendoring:

  bash $0

FILE_CHANGE_CNT=`hg status third_party/libwebrtc | wc -l | tr -d " "`

if [ "x$FILE_CHANGE_CNT" != "x0" ]; then

  echo "$ERROR_HELP"

  exit 1

fi

echo "Done - vendoring has been verified."