realm-js/scripts/download-core.sh

76 lines
2.1 KiB
Bash
Executable File

#!/bin/bash
set -e
set -o pipefail
: ${REALM_CORE_VERSION:=0.97.1} # set to "current" to always use the current build
# Start current working directory at the root of the project.
cd "$(dirname "$0")/.."
die() {
echo "$@" >&2
exit 1
}
download_core() {
echo "Downloading dependency: core $REALM_CORE_VERSION"
local TMP_DIR="$TMPDIR/core_bin"
local CORE_TAR="$TMP_DIR/core-$REALM_CORE_VERSION.tar.bz2"
local CORE_TMP_TAR="$CORE_TAR.tmp"
mkdir -p "$TMP_DIR"
if [ ! -f "$CORE_TAR" ]; then
curl -f -L -s "https://static.realm.io/downloads/core/realm-core-$REALM_CORE_VERSION.tar.bz2" -o "$CORE_TMP_TAR" ||
die "Downloading core failed. Please try again once you have an Internet connection."
mv "$CORE_TMP_TAR" "$CORE_TAR"
else
echo "Using cached core from TMPDIR"
fi
(
cd "$TMP_DIR"
rm -rf core
tar xjf "$CORE_TAR"
mv core "core-$REALM_CORE_VERSION"
)
rm -rf "core-$REALM_CORE_VERSION" core
mv "$TMP_DIR/core-$REALM_CORE_VERSION" .
ln -s "core-$REALM_CORE_VERSION" core
}
check_release_notes() {
grep -Fqi "$REALM_CORE_VERSION RELEASE NOTES" "$@"
}
if [[ $1 = "--version" ]]; then
echo $REALM_CORE_VERSION
exit 0
fi
if [ ! -e core ]; then
download_core
elif [ -d core -a -d ../realm-core -a ! -L core ]; then
# Allow newer versions than expected for local builds as testing
# with unreleased versions is one of the reasons to use a local build
if ! check_release_notes core/release_notes.txt; then
die "Local build of core is out of date."
else
echo "The core library seems to be up to date."
fi
elif [ ! -L core ]; then
echo "core is not a symlink. Deleting..."
rm -rf core
download_core
# With a prebuilt version we only want to check the first non-empty
# line so that checking out an older commit will download the
# appropriate version of core if the already-present version is too new
elif ! grep -m 1 . core/release_notes.txt | check_release_notes; then
download_core
else
echo "The core library seems to be up to date."
fi