Create mozilla-<beta/aurora> uplift patch for pdf.js.

uplift.sh

#!/bin/sh
set -e
if [ "$#" -ne 4 ]; then
  echo "Usage: $0 1_NAME 2_MESSAGE 3_BASELINE 4_CHERRY-PICK" >&2
  echo "Example: $0 annot-ap-beta \"Bug 890259 - Use text widget annotation appearance stream if it is available.\" 4e83123 feafb39" >&2
  echo "Run in your mozilla-<branch> directory." >&2
  exit 1
fi

read -p "Did you 1) pop all hg patches, 2) update mozilla-<version>, 3) make sure pdf.js is clean?[y\n] " -n 1
if [[ ! $REPLY =~ ^[Yy]$ ]]
then
    exit 1
fi

pushd .

cd ~/projects/mine/pdf.js

git checkout $3

git cherry-pick $4

BASELINE=$3 node make mozcentralbaseline

node make mozcentraldiff

popd

hg qimport -n $1 ~/projects/mine/pdf.js/build/mozcentral.diff

hg qpush

hg qref -m "$2" -X "*"

echo "REMEBER to wipe out commit id changes..."

echo "Then:"

echo "hg qref && hg export qtip > ~/projects/mozilla-central/patches~/$1.patch"

Example usage:
uplift.sh annot-ap-beta "Bug 890259 - Use text widget annotation appearance stream if it is available." 4e83123 feafb39