build: detect GOPATH in direnv if not set systemwide

Signed-off-by: Artur Troian <[email protected]>

.envrc

@@ -1,3 +1,18 @@
+direnv_version_major=$(direnv version | cut -d "." -f1 | tr -d '\n')
+direnv_version_minor=$(direnv version | cut -d "." -f2 | tr -d '\n')
+
+if [[ $direnv_version_major -lt 2 ]] || [[ $direnv_version_major -eq 2 ]] && [[ $direnv_version_minor -lt 32 ]]; then
+    echo -e "\033[31munsupported direnv version $(direnv version) < 2.32.x"
+    exit 1
+fi
+
+if [[ "$SHELL" == "bash" ]]; then
+    if [ "${BASH_VERSINFO:-0}" -lt 4 ]; then
+        echo -e "\033[31mthe environment needs BASH 4 or above" >&2
+        exit 1
+    fi
+fi
+
 AP_ROOT=$(pwd)
 export AP_ROOT
 
@@ -7,43 +22,61 @@ dotenv_if_exists dev.env
 PATH_add "$AP_DEVCACHE_NODE_BIN"
 PATH_add "$AP_DEVCACHE_BIN"
 
+is_command() {
+    command -v "$1" >/dev/null
+}
+
 if ! has make ; then
-	echo "make is not installed"; exit 1
+	echo -e "\033[31mmake is not installed"; exit 1
 fi
 
 if ! has go ; then
-	echo "go is not installed"; exit 1
+	echo -e "\033[31mgo is not installed"; exit 1
 fi
 
 if ! has kind ; then
 	echo "kind is not installed. dev environment will try to install it"
 fi
 
 if ! has unzip ; then
-	echo "unzip is not installed"; exit 1
+	echo -e "\033[31munzip is not installed"; exit 1
 fi
 
 if ! has wget ; then
-	echo "wget is not installed"; exit 1
+	echo -e "\033[31mwget is not installed"; exit 1
 fi
 
 if ! has curl ; then
-	echo "curl is not installed"; exit 1
+	echo -e "\033[31mcurl is not installed"; exit 1
 fi
 
 if ! has npm ; then
-	echo "npm is not installed"; exit 1
+	echo -e "\033[31mnpm is not installed"; exit 1
 fi
 
 if ! has jq ; then
-	echo "jq is not installed"; exit 1
+	echo -e "\033[31mjq is not installed"; exit 1
 fi
 
 if ! has readlink ; then
-	echo "readlink is not installed"; exit 1
+	echo -e "\033[31mreadlink is not installed"; exit 1
+fi
+
+if [[ "$OSTYPE" == "darwin"* ]]; then
+    if ! is_command brew; then
+        echo -e "\033[31mhomebrew is not installed. visit https://brew.sh"
+        exit 1
+    fi
+
+    if ! brew list gnu-getopt >/dev/null 2>&1 ; then
+        echo -e "\033[31mgnu-getopt is not installed. to install \"brew install gnu-getopt\""
+        exit 1
+    else
+        PATH_add "$(brew --prefix)/opt/gnu-getopt/bin"
+    fi
 fi
 
-if [ -z "$GOPATH" ]; then
+if [[ -z "$GOPATH" ]]; then
     GOPATH=$(go env GOPATH)
     export GOPATH
 fi