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#!/bin/bash
# Usage: ./update.sh [<git-rev-to-use>]
#
# Copies the needed files from a directory containing the original
# double-conversion source that we need. If no revision is specified, the tip
# revision is used. See GIT-INFO for the last revision used.
set -e
LOCAL_PATCHES=""
LOCAL_PATCHES="$LOCAL_PATCHES add-mfbt-api-markers.patch"
LOCAL_PATCHES="$LOCAL_PATCHES use-mozilla-assertions.patch"
LOCAL_PATCHES="$LOCAL_PATCHES debug-only-functions.patch"
LOCAL_PATCHES="$LOCAL_PATCHES to-fixed-dbl-max.patch"
TMPDIR=`mktemp -d`
LOCAL_CLONE="$TMPDIR/new-double-conversion"
git clone https://github.com/google/double-conversion.git "$LOCAL_CLONE"
# If a particular revision was requested, check it out.
if [ "$1" != "" ]; then
git -C "$LOCAL_CLONE" checkout "$1"
fi
# First clear out everything already present.
DEST=./double-conversion
mv "$DEST" "$TMPDIR"/old-double-conversion
mkdir "$DEST"
# Copy over critical files.
cp "$LOCAL_CLONE/LICENSE" "$DEST/"
cp "$LOCAL_CLONE/README.md" "$DEST/"
# Includes
for header in "$LOCAL_CLONE/double-conversion/"*.h; do
cp "$header" "$DEST/"
done
# Source
for ccfile in "$LOCAL_CLONE/double-conversion/"*.cc; do
cp "$ccfile" "$DEST/"
done
# Now apply our local patches.
for patch in $LOCAL_PATCHES; do
patch --directory "$DEST" --strip 4 < "$patch"
# Out-of-date patches may spew *.{orig,rej} when applied. Report an error if
# any such file is found, and roll the source directory back to its previous
# state in such case.
detritus_files=`find "$DEST" -name '*.orig' -o -name '*.rej'`
if [ "$detritus_files" != "" ]; then
echo "ERROR: Local patch $patch created these detritus files when applied:"
echo ""
echo " $detritus_files"
echo ""
echo "Please fix $patch before running $0."
rm -rf "$DEST"
mv "$TMPDIR"/source "$DEST"
exit 1
fi
done
# Update Mercurial file status.
hg addremove "$DEST"
# Note the revision used in this update.
git -C "$LOCAL_CLONE" show -s > ./GIT-INFO
# Delete the tmpdir.
rm -rf "$TMPDIR"
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