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fix(build): make version checker more robust in install (#260)

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Resolves #246.
This commit is contained in:
Thomas Lutz
2019-10-24 00:14:53 +02:00
committed by Burak Yigit Kaya
parent ac33e08b47
commit fc24bd4b82
1 changed files with 2 additions and 2 deletions
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4
install.sh
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@@ -24,8 +24,8 @@ DOCKER_VERSION=$(docker version --format '{{.Server.Version}}')
COMPOSE_VERSION=$(docker-compose --version | sed 's/docker-compose version \(.\{1,\}\),.*/\1/')
RAM_AVAILABLE_IN_DOCKER=$(docker run --rm busybox free -m 2>/dev/null | awk '/Mem/ {print $2}');
# Function below is inspired by https://stackoverflow.com/a/29394504/90297
function ver { printf "%03d%03d%03d%03d" $(echo "$1" | sed 's/^0*\([0-9]\+\)\.0*\([0-9]\+\)\.0*\([0-9]\+\).*/\1 \2 \3/' | head -n 3 ); }
# Compare dot-separated strings - function below is inspired by https://stackoverflow.com/a/37939589/808368
function ver () { echo "$@" | awk -F. '{ printf("%d%03d%03d", $1,$2,$3); }'; }
if [ $(ver $DOCKER_VERSION) -lt $(ver $MIN_DOCKER_VERSION) ]; then
echo "FAIL: Expected minimum Docker version to be $MIN_DOCKER_VERSION but found $DOCKER_VERSION"