follow proxy settings

.github/workflows/test.yml

@@ -83,7 +83,7 @@ jobs:
         shell: bash
         run: __test__/verify-lfs.sh
 
-  test-job-container:
+  test-rest-api:
     runs-on: ubuntu-latest
     container: alpine:latest
     steps:
@@ -99,3 +99,42 @@ jobs:
           path: basic
       - name: Verify basic
         run: __test__/verify-basic.sh --archive
+
+  test-proxy:
+    runs-on: ubuntu-latest
+    container: alpine/git:latest
+    services:
+      squid-proxy:
+        image: datadog/squid:latest
+        ports:
+          - 3128:3128
+    steps:
+      # Clone this repo
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      # Configure proxy
+      - name: Configure proxy
+        run: __test__/configure-proxy.sh
+
+      # Basic checkout using git
+      - name: Basic checkout
+        uses: ./
+        with:
+          ref: test-data/v2/basic
+          path: basic
+      - name: Verify basic
+        run: __test__/verify-basic.sh
+      - name: Remove basic
+        run: rm -rf basic
+
+      # Basic checkout using REST API
+      - name: Override git version
+        run: __test__/override-git-version.sh
+      - name: Basic checkout using REST API
+        uses: ./
+        with:
+          ref: test-data/v2/basic
+          path: basic
+      - name: Verify basic
+        run: __test__/verify-basic.sh --archive

__test__/configure-proxy.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+echo "" >> /etc/hosts
+echo "127.0.0.0 github.com api.github.com" >> /etc/hosts
+echo "::set-env name=https_proxy::http://squid-proxy:3128"

__test__/override-git-version.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+mkdir override-git-version
+cd override-git-version
+echo "#!/bin/sh" > git
+echo "echo override git version 1.2.3" >> git
+chmod +x git
+echo "::add-path::$(pwd)"
+cd ..