etherpad-lite/bin/functions.sh
jeanfabrice 52f8fc9ba3
legacySupport: Run node 10 with '--experimental_worker' flags (#4392)
* Run node 10 with '--experimental_worker' flags
* Use dedicated function to retrieve node/npm program version

The goal of this commit is to ensure that any linux based node 10 deployments run with the experimental_worker flag.  This flag is required for workers to "work" in node 10.  This will not affect other versions of node.  This resolves #4335 where Docker would fail due to being based on node 10.
2020-10-06 13:28:11 +01:00

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# minimum required node version
REQUIRED_NODE_MAJOR=10
REQUIRED_NODE_MINOR=13
# minimum required npm version
REQUIRED_NPM_MAJOR=5
REQUIRED_NPM_MINOR=5
pecho() { printf %s\\n "$*"; }
log() { pecho "$@"; }
error() { log "ERROR: $@" >&2; }
fatal() { error "$@"; exit 1; }
is_cmd() { command -v "$@" >/dev/null 2>&1; }
get_program_version() {
PROGRAM="$1"
KIND="${2:-full}"
PROGRAM_VERSION_STRING=$($PROGRAM --version)
PROGRAM_VERSION_STRING=${PROGRAM_VERSION_STRING#"v"}
DETECTED_MAJOR=$(pecho "$PROGRAM_VERSION_STRING" | cut -s -d "." -f 1)
[ -n "$DETECTED_MAJOR" ] || fatal "Cannot extract $PROGRAM major version from version string \"$PROGRAM_VERSION_STRING\""
case "$DETECTED_MAJOR" in
''|*[!0-9]*)
fatal "$PROGRAM_LABEL major version from \"$VERSION_STRING\" is not a number. Detected: \"$DETECTED_MAJOR\""
;;
esac
DETECTED_MINOR=$(pecho "$PROGRAM_VERSION_STRING" | cut -s -d "." -f 2)
[ -n "$DETECTED_MINOR" ] || fatal "Cannot extract $PROGRAM minor version from version string \"$PROGRAM_VERSION_STRING\""
case "$DETECTED_MINOR" in
''|*[!0-9]*)
fatal "$PROGRAM_LABEL minor version from \"$VERSION_STRING\" is not a number. Detected: \"$DETECTED_MINOR\""
esac
case $KIND in
major)
echo $DETECTED_MAJOR
exit;;
minor)
echo $DETECTED_MINOR
exit;;
*)
echo $DETECTED_MAJOR.$DETECTED_MINOR
exit;;
esac
echo $VERSION
}
compute_node_args() {
ARGS=""
NODE_MAJOR=$(get_program_version "node" "major")
[ "$NODE_MAJOR" -eq "10" ] && ARGS="$ARGS --experimental-worker"
echo $ARGS
}
require_minimal_version() {
PROGRAM_LABEL="$1"
VERSION="$2"
REQUIRED_MAJOR="$3"
REQUIRED_MINOR="$4"
VERSION_MAJOR=$(pecho "$VERSION" | cut -s -d "." -f 1)
VERSION_MINOR=$(pecho "$VERSION" | cut -s -d "." -f 2)
[ "$VERSION_MAJOR" -gt "$REQUIRED_MAJOR" ] || ([ "$VERSION_MAJOR" -eq "$REQUIRED_MAJOR" ] && [ "$VERSION_MINOR" -ge "$REQUIRED_MINOR" ]) \
|| fatal "Your $PROGRAM_LABEL version \"$VERSION_MAJOR.$VERSION_MINOR\" is too old. $PROGRAM_LABEL $REQUIRED_MAJOR.$REQUIRED_MINOR.x or higher is required."
}