feat: add lint/e2e tests support (#126)

Signed-off-by: bitliu <bitliu@tencent.com>

tools/hack/prebuild.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+set -e
+
+ENVOY_VERSION="${ENVOY_VERSION:=1.20}"
+ISITO_VERSION="${ISTIO_VERSION:=1.12}"
+WORK_DIR=`cd $(dirname "$0")/../..;pwd`
+
+cd $WORK_DIR
+
+mkdir -p external/package
+
+envoy_repos=("go-control-plane" "envoy")
+
+for repo in ${envoy_repos[@]}; do
+    if [ -e external/$repo ];then
+        continue
+    fi
+    cp -r envoy/${ENVOY_VERSION}/$repo  external/$repo
+    for patch in `ls envoy/${ENVOY_VERSION}/patches/$repo/*.patch`; do
+        patch -d external/$repo -p1 < $patch
+    done
+    cd external/$repo
+    echo "gitdir: /parent/.git/modules/envoy/${ENVOY_VERSION}/$repo" > .git
+    if [ -f "go.mod" ]; then
+        go mod tidy
+    fi
+    cd $WORK_DIR
+done
+
+istio_repos=("api" "client-go" "pkg" "istio" "proxy")
+
+for repo in ${istio_repos[@]}; do
+    if [ -e external/$repo ];then
+        continue
+    fi
+    cp -r istio/${ISTIO_VERSION}/$repo  external/$repo
+    for patch in `ls istio/${ISTIO_VERSION}/patches/$repo/*.patch`; do
+        patch -d external/$repo -p1 < $patch
+    done
+    cd external/$repo
+    echo "gitdir: /parent/.git/modules/istio/${ISTIO_VERSION}/$repo" > .git
+    if [ -f "go.mod" ]; then
+        go mod tidy
+    fi
+    cd $WORK_DIR
+done