hack/install_golangci.sh: smarter install

Detect if the installed version of golangci-lint is outdated and update
it if needed.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 12 insertions, 6 deletions

diff --git a/hack/install_golangci.sh b/hack/install_golangci.sh
index a962df6e1..41cf90ddc 100755
--- a/hack/install_golangci.sh
+++ b/hack/install_golangci.sh
@@ -1,17 +1,23 @@
 #!/usr/bin/env bash
 
-set -e
-
 die() { echo "${1:-No error message given} (from $(basename $0))"; exit 1; }
 
 [ -n "$VERSION" ] || die "\$VERSION is empty or undefined"
-[ -n "$GOBIN" ] || die "\$GOBIN is empty or undefined"
 
-BIN="./bin/golangci-lint"
-if [ ! -x "$BIN" ]; then
+function install() {
     echo "Installing golangci-lint v$VERSION into $BIN"
     curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b ./bin v$VERSION
+}
+
+BIN="./bin/golangci-lint"
+if [ ! -x "$BIN" ]; then
+	install
 else
     # Prints its own file name as part of --version output
-    echo "Using existing $(dirname $BIN)/$($BIN --version)"
+    $BIN --version | grep "$VERSION"
+    if [ $? -eq 0 ]; then
+        echo "Using existing $(dirname $BIN)/$($BIN --version)"
+    else
+        install
+    fi
 fi